mysqld.cc 320 KB
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/* Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.
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   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; version 2 of the License.
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   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include "mysql_priv.h"
#include <m_ctype.h>
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#include <my_dir.h>
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#include <my_bit.h>
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#include "slave.h"
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#include "rpl_mi.h"
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#include "sql_repl.h"
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#include "rpl_filter.h"
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#include "repl_failsafe.h"
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#include <my_stacktrace.h>
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#include "mysqld_suffix.h"
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#include "mysys_err.h"
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#include "events.h"
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#include "../storage/myisam/ha_myisam.h"
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#include "rpl_injector.h"

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#include "rpl_handler.h"

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#ifdef HAVE_SYS_PRCTL_H
#include <sys/prctl.h>
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#endif

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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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#if defined(NOT_ENOUGH_TESTED) \
  && defined(NDB_SHM_TRANSPORTER) && MYSQL_VERSION_ID >= 50000
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#define OPT_NDB_SHM_DEFAULT 1
#else
#define OPT_NDB_SHM_DEFAULT 0
#endif
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#endif

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#ifndef DEFAULT_SKIP_THREAD_PRIORITY
#define DEFAULT_SKIP_THREAD_PRIORITY 0
#endif

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#include <thr_alarm.h>
#include <ft_global.h>
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#include <errmsg.h>
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#include "sp_rcontext.h"
#include "sp_cache.h"
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#define mysqld_charset &my_charset_latin1
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#ifdef HAVE_purify
#define IF_PURIFY(A,B) (A)
#else
#define IF_PURIFY(A,B) (B)
#endif

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#if SIZEOF_CHARP == 4
#define MAX_MEM_TABLE_SIZE ~(ulong) 0
#else
#define MAX_MEM_TABLE_SIZE ~(ulonglong) 0
#endif

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/* stack traces are only supported on linux intel */
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#if defined(__linux__)  && defined(__i386__) && defined(USE_PSTACK)
#define	HAVE_STACK_TRACE_ON_SEGV
#include "../pstack/pstack.h"
char pstack_file_name[80];
#endif /* __linux__ */

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/* We have HAVE_purify below as this speeds up the shutdown of MySQL */

#if defined(HAVE_DEC_3_2_THREADS) || defined(SIGNALS_DONT_BREAK_READ) || defined(HAVE_purify) && defined(__linux__)
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#define HAVE_CLOSE_SERVER_SOCK 1
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#endif
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extern "C" {					// Because of SCO 3.2V4.2
#include <errno.h>
#include <sys/stat.h>
#ifndef __GNU_LIBRARY__
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#define __GNU_LIBRARY__				// Skip warnings in getopt.h
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#endif
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#include <my_getopt.h>
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#ifdef HAVE_SYSENT_H
#include <sysent.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>				// For getpwent
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
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#include <my_net.h>
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#if !defined(__WIN__)
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#  ifndef __NETWARE__
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#include <sys/resource.h>
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#  endif /* __NETWARE__ */
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#ifdef HAVE_SYS_UN_H
#  include <sys/un.h>
#endif
#include <netdb.h>
#ifdef HAVE_SELECT_H
#  include <select.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#include <sys/utsname.h>
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#endif /* __WIN__ */
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#include <my_libwrap.h>
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#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif

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#ifdef __WIN__ 
#include <crtdbg.h>
#define SIGNAL_FMT "exception 0x%x"
#else
#define SIGNAL_FMT "signal %d"
#endif

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#ifdef __NETWARE__
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#define zVOLSTATE_ACTIVE 6
#define zVOLSTATE_DEACTIVE 2
#define zVOLSTATE_MAINTENANCE 3

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#undef __event_h__
#include <../include/event.h>
/*
  This #undef exists here because both libc of NetWare and MySQL have
  files named event.h which causes compilation errors.
*/

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#include <nks/netware.h>
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#include <nks/vm.h>
#include <library.h>
#include <monitor.h>
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#include <zOmni.h>                              //For NEB
#include <neb.h>                                //For NEB
#include <nebpub.h>                             //For NEB
#include <zEvent.h>                             //For NSS event structures
#include <zPublics.h>

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static void *neb_consumer_id= NULL;             //For storing NEB consumer id
static char datavolname[256]= {0};
static VolumeID_t datavolid;
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static event_handle_t eh;
static Report_t ref;
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static void *refneb= NULL;
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my_bool event_flag= FALSE;
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static int volumeid= -1;
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  /* NEB event callback */
unsigned long neb_event_callback(struct EventBlock *eblock);
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static void registerwithneb();
static void getvolumename();
static void getvolumeID(BYTE *volumeName);
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#endif /* __NETWARE__ */
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#ifdef _AIX41
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int initgroups(const char *,unsigned int);
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#endif

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#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H)
#include <ieeefp.h>
#ifdef HAVE_FP_EXCEPT				// Fix type conflict
typedef fp_except fp_except_t;
#endif
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#endif /* __FreeBSD__ && HAVE_IEEEFP_H */
#ifdef HAVE_SYS_FPU_H
/* for IRIX to use set_fpc_csr() */
#include <sys/fpu.h>
#endif
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inline void setup_fpu()
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{
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#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H)
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  /* We can't handle floating point exceptions with threads, so disable
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     this on freebsd
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     Don't fall for overflow, underflow,divide-by-zero or loss of precision
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  */
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#if defined(__i386__)
  fpsetmask(~(FP_X_INV | FP_X_DNML | FP_X_OFL | FP_X_UFL | FP_X_DZ |
	      FP_X_IMP));
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#else
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  fpsetmask(~(FP_X_INV |             FP_X_OFL | FP_X_UFL | FP_X_DZ |
              FP_X_IMP));
#endif /* __i386__ */
#endif /* __FreeBSD__ && HAVE_IEEEFP_H */
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#ifdef HAVE_FESETROUND
    /* Set FPU rounding mode to "round-to-nearest" */
  fesetround(FE_TONEAREST);
#endif /* HAVE_FESETROUND */
    
#if defined(__sgi) && defined(HAVE_SYS_FPU_H)
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  /* Enable denormalized DOUBLE values support for IRIX */
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  union fpc_csr n;
  n.fc_word = get_fpc_csr();
  n.fc_struct.flush = 0;
  set_fpc_csr(n.fc_word);
#endif
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}
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} /* cplusplus */

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#define MYSQL_KILL_SIGNAL SIGTERM
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#ifdef HAVE_GLIBC2_STYLE_GETHOSTBYNAME_R
#include <sys/types.h>
#else
#include <my_pthread.h>			// For thr_setconcurency()
#endif

#ifdef SOLARIS
extern "C" int gethostname(char *name, int namelen);
#endif

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extern "C" sig_handler handle_segfault(int sig);
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#if defined(__linux__)
#define ENABLE_TEMP_POOL 1
#else
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#define ENABLE_TEMP_POOL 0
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#endif

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/* Constants */
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const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"};
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/*
  WARNING: When adding new SQL modes don't forget to update the
           tables definitions that stores it's value.
           (ie: mysql.event, mysql.proc)
*/
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static const char *sql_mode_names[]=
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{
  "REAL_AS_FLOAT", "PIPES_AS_CONCAT", "ANSI_QUOTES", "IGNORE_SPACE",
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  "?", "ONLY_FULL_GROUP_BY", "NO_UNSIGNED_SUBTRACTION",
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  "NO_DIR_IN_CREATE",
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  "POSTGRESQL", "ORACLE", "MSSQL", "DB2", "MAXDB", "NO_KEY_OPTIONS",
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  "NO_TABLE_OPTIONS", "NO_FIELD_OPTIONS", "MYSQL323", "MYSQL40", "ANSI",
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  "NO_AUTO_VALUE_ON_ZERO", "NO_BACKSLASH_ESCAPES", "STRICT_TRANS_TABLES",
  "STRICT_ALL_TABLES",
  "NO_ZERO_IN_DATE", "NO_ZERO_DATE", "ALLOW_INVALID_DATES",
  "ERROR_FOR_DIVISION_BY_ZERO",
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  "TRADITIONAL", "NO_AUTO_CREATE_USER", "HIGH_NOT_PRECEDENCE",
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  "NO_ENGINE_SUBSTITUTION",
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  "PAD_CHAR_TO_FULL_LENGTH",
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  NullS
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};
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static const unsigned int sql_mode_names_len[]=
{
  /*REAL_AS_FLOAT*/               13,
  /*PIPES_AS_CONCAT*/             15,
  /*ANSI_QUOTES*/                 11,
  /*IGNORE_SPACE*/                12,
  /*?*/                           1,
  /*ONLY_FULL_GROUP_BY*/          18,
  /*NO_UNSIGNED_SUBTRACTION*/     23,
  /*NO_DIR_IN_CREATE*/            16,
  /*POSTGRESQL*/                  10,
  /*ORACLE*/                      6,
  /*MSSQL*/                       5,
  /*DB2*/                         3,
  /*MAXDB*/                       5,
  /*NO_KEY_OPTIONS*/              14,
  /*NO_TABLE_OPTIONS*/            16,
  /*NO_FIELD_OPTIONS*/            16,
  /*MYSQL323*/                    8,
  /*MYSQL40*/                     7,
  /*ANSI*/                        4,
  /*NO_AUTO_VALUE_ON_ZERO*/       21,
  /*NO_BACKSLASH_ESCAPES*/        20,
  /*STRICT_TRANS_TABLES*/         19,
  /*STRICT_ALL_TABLES*/           17,
  /*NO_ZERO_IN_DATE*/             15,
  /*NO_ZERO_DATE*/                12,
  /*ALLOW_INVALID_DATES*/         19,
  /*ERROR_FOR_DIVISION_BY_ZERO*/  26,
  /*TRADITIONAL*/                 11,
  /*NO_AUTO_CREATE_USER*/         19,
  /*HIGH_NOT_PRECEDENCE*/         19,
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  /*NO_ENGINE_SUBSTITUTION*/      22,
  /*PAD_CHAR_TO_FULL_LENGTH*/     23
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};
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TYPELIB sql_mode_typelib= { array_elements(sql_mode_names)-1,"",
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			    sql_mode_names,
                            (unsigned int *)sql_mode_names_len };
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static const char *optimizer_switch_names[]=
{
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  "index_merge","index_merge_union","index_merge_sort_union", 
  "index_merge_intersection", "default", NullS
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};
/* Corresponding defines are named OPTIMIZER_SWITCH_XXX */
static const unsigned int optimizer_switch_names_len[]=
{
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  sizeof("index_merge") - 1,
  sizeof("index_merge_union") - 1,
  sizeof("index_merge_sort_union") - 1,
  sizeof("index_merge_intersection") - 1,
  sizeof("default") - 1
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};
TYPELIB optimizer_switch_typelib= { array_elements(optimizer_switch_names)-1,"",
                                    optimizer_switch_names,
                                    (unsigned int *)optimizer_switch_names_len };

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static const char *tc_heuristic_recover_names[]=
{
  "COMMIT", "ROLLBACK", NullS
};
static TYPELIB tc_heuristic_recover_typelib=
{
  array_elements(tc_heuristic_recover_names)-1,"",
  tc_heuristic_recover_names, NULL
};
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static const char *thread_handling_names[]=
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{ "one-thread-per-connection", "no-threads",
#if HAVE_POOL_OF_THREADS == 1
  "pool-of-threads",
#endif
  NullS};
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TYPELIB thread_handling_typelib=
{
  array_elements(thread_handling_names) - 1, "",
  thread_handling_names, NULL
};

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const char *first_keyword= "first", *binary_keyword= "BINARY";
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const char *my_localhost= "localhost", *delayed_user= "DELAYED";
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#if SIZEOF_OFF_T > 4 && defined(BIG_TABLES)
#define GET_HA_ROWS GET_ULL
#else
#define GET_HA_ROWS GET_ULONG
#endif

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bool opt_large_files= sizeof(my_off_t) > 4;
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/*
  Used with --help for detailed option
*/
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static my_bool opt_help= 0, opt_verbose= 0;
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arg_cmp_func Arg_comparator::comparator_matrix[5][2] =
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{{&Arg_comparator::compare_string,     &Arg_comparator::compare_e_string},
 {&Arg_comparator::compare_real,       &Arg_comparator::compare_e_real},
 {&Arg_comparator::compare_int_signed, &Arg_comparator::compare_e_int},
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 {&Arg_comparator::compare_row,        &Arg_comparator::compare_e_row},
 {&Arg_comparator::compare_decimal,    &Arg_comparator::compare_e_decimal}};
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const char *log_output_names[] = { "NONE", "FILE", "TABLE", NullS};
static const unsigned int log_output_names_len[]= { 4, 4, 5, 0 };
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TYPELIB log_output_typelib= {array_elements(log_output_names)-1,"",
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                             log_output_names, 
                             (unsigned int *) log_output_names_len};
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/* static variables */

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/* the default log output is log tables */
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static bool lower_case_table_names_used= 0;
static bool volatile select_thread_in_use, signal_thread_in_use;
static bool volatile ready_to_exit;
static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0;
static my_bool opt_short_log_format= 0;
static uint kill_cached_threads, wake_thread;
static ulong killed_threads, thread_created;
static ulong max_used_connections;
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static ulong my_bind_addr;			/**< the address we bind to */
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static volatile ulong cached_thread_count= 0;
static const char *sql_mode_str= "OFF";
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/* Text representation for OPTIMIZER_SWITCH_DEFAULT */
static const char *optimizer_switch_str="index_merge=on,index_merge_union=on,"
                                        "index_merge_sort_union=on,"
                                        "index_merge_intersection=on";
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static char *mysqld_user, *mysqld_chroot, *log_error_file_ptr;
static char *opt_init_slave, *language_ptr, *opt_init_connect;
static char *default_character_set_name;
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static char *character_set_filesystem_name;
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static char *lc_time_names_name;
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static char *my_bind_addr_str;
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static char *default_collation_name; 
static char *default_storage_engine_str;
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static char compiled_default_collation_name[]= MYSQL_DEFAULT_COLLATION_NAME;
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static I_List<THD> thread_cache;
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static double long_query_time;
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static pthread_cond_t COND_thread_cache, COND_flush_thread_cache;

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/* Global variables */
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bool opt_update_log, opt_bin_log, opt_ignore_builtin_innodb= 0;
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my_bool opt_log, opt_slow_log;
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ulong log_output_options;
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my_bool opt_log_queries_not_using_indexes= 0;
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bool opt_error_log= IF_WIN(1,0);
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bool opt_disable_networking=0, opt_skip_show_db=0;
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my_bool opt_character_set_client_handshake= 1;
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bool server_id_supplied = 0;
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bool opt_endinfo, using_udf_functions;
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my_bool locked_in_memory;
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bool opt_using_transactions;
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bool volatile abort_loop;
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bool volatile shutdown_in_progress;
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/*
  True if the bootstrap thread is running. Protected by LOCK_thread_count,
  just like thread_count.
  Used in bootstrap() function to determine if the bootstrap thread
  has completed. Note, that we can't use 'thread_count' instead,
  since in 5.1, in presence of the Event Scheduler, there may be
  event threads running in parallel, so it's impossible to know
  what value of 'thread_count' is a sign of completion of the
  bootstrap thread.

  At the same time, we can't start the event scheduler after
  bootstrap either, since we want to be able to process event-related
  SQL commands in the init file and in --bootstrap mode.
*/
bool in_bootstrap= FALSE;
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/**
   @brief 'grant_option' is used to indicate if privileges needs
   to be checked, in which case the lock, LOCK_grant, is used
   to protect access to the grant table.
   @note This flag is dropped in 5.1 
   @see grant_init()
 */
bool volatile grant_option;
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my_bool opt_skip_slave_start = 0; ///< If set, slave is not autostarted
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my_bool opt_reckless_slave = 0;
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my_bool opt_enable_named_pipe= 0;
my_bool opt_local_infile, opt_slave_compressed_protocol;
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my_bool opt_safe_user_create = 0, opt_no_mix_types = 0;
my_bool opt_show_slave_auth_info, opt_sql_bin_update = 0;
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my_bool opt_log_slave_updates= 0;
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bool slave_warning_issued = false; 
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/*
  Legacy global handlerton. These will be removed (please do not add more).
*/
handlerton *heap_hton;
handlerton *myisam_hton;
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handlerton *partition_hton;
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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const char *opt_ndbcluster_connectstring= 0;
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const char *opt_ndb_connectstring= 0;
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char opt_ndb_constrbuf[1024]= {0};
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unsigned opt_ndb_constrbuf_len= 0;
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my_bool	opt_ndb_shm, opt_ndb_optimized_node_selection;
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ulong opt_ndb_cache_check_time;
const char *opt_ndb_mgmd;
ulong opt_ndb_nodeid;
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ulong ndb_extra_logging;
#ifdef HAVE_NDB_BINLOG
ulong ndb_report_thresh_binlog_epoch_slip;
ulong ndb_report_thresh_binlog_mem_usage;
#endif
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extern const char *ndb_distribution_names[];
extern TYPELIB ndb_distribution_typelib;
extern const char *opt_ndb_distribution;
extern enum ndb_distribution opt_ndb_distribution_id;
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#endif
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my_bool opt_readonly, use_temp_pool, relay_log_purge;
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my_bool relay_log_recovery;
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my_bool opt_sync_frm, opt_allow_suspicious_udfs;
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my_bool opt_secure_auth= 0;
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char* opt_secure_file_priv= 0;
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my_bool opt_log_slow_admin_statements= 0;
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my_bool opt_log_slow_slave_statements= 0;
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my_bool lower_case_file_system= 0;
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my_bool opt_large_pages= 0;
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my_bool opt_myisam_use_mmap= 0;
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uint    opt_large_page_size= 0;
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my_bool opt_old_style_user_limits= 0, trust_function_creators= 0;
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/*
  True if there is at least one per-hour limit for some user, so we should
  check them before each query (and possibly reset counters when hour is
  changed). False otherwise.
*/
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volatile bool mqh_used = 0;
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my_bool opt_noacl;
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my_bool sp_automatic_privileges= 1;
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ulong opt_binlog_rows_event_max_size;
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const char *binlog_format_names[]= {"MIXED", "STATEMENT", "ROW", NullS};
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TYPELIB binlog_format_typelib=
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  { array_elements(binlog_format_names) - 1, "",
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    binlog_format_names, NULL };
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ulong opt_binlog_format_id= (ulong) BINLOG_FORMAT_UNSPEC;
const char *opt_binlog_format= binlog_format_names[opt_binlog_format_id];
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#ifdef HAVE_INITGROUPS
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static bool calling_initgroups= FALSE; /**< Used in SIGSEGV handler. */
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#endif
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uint mysqld_port, test_flags, select_errors, dropping_tables, ha_open_options;
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uint mysqld_port_timeout;
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uint delay_key_write_options, protocol_version;
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uint lower_case_table_names;
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uint tc_heuristic_recover= 0;
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uint volatile thread_count, thread_running;
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ulonglong thd_startup_options;
ulong back_log, connect_timeout, concurrency, server_id;
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ulong table_cache_size, table_def_size;
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ulong what_to_log;
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ulong query_buff_size, slow_launch_time, slave_open_temp_tables;
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ulong open_files_limit, max_binlog_size, max_relay_log_size;
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ulong slave_net_timeout, slave_trans_retries;
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ulong slave_exec_mode_options;
const char *slave_exec_mode_str= "STRICT";
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ulong thread_cache_size=0, thread_pool_size= 0;
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ulong binlog_cache_size=0;
ulonglong  max_binlog_cache_size=0;
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ulong query_cache_size=0;
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ulong refresh_version;  /* Increments on each reload */
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query_id_t global_query_id;
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ulong aborted_threads, aborted_connects;
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ulong delayed_insert_timeout, delayed_insert_limit, delayed_queue_size;
ulong delayed_insert_threads, delayed_insert_writes, delayed_rows_in_use;
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ulong delayed_insert_errors,flush_time;
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ulong specialflag=0;
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ulong binlog_cache_use= 0, binlog_cache_disk_use= 0;
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ulong max_connections, max_connect_errors;
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uint  max_user_connections= 0;
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/**
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  Limit of the total number of prepared statements in the server.
  Is necessary to protect the server against out-of-memory attacks.
*/
ulong max_prepared_stmt_count;
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/**
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  Current total number of prepared statements in the server. This number
  is exact, and therefore may not be equal to the difference between
  `com_stmt_prepare' and `com_stmt_close' (global status variables), as
  the latter ones account for all registered attempts to prepare
  a statement (including unsuccessful ones).  Prepared statements are
  currently connection-local: if the same SQL query text is prepared in
  two different connections, this counts as two distinct prepared
  statements.
*/
ulong prepared_stmt_count=0;
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ulong thread_id=1L,current_pid;
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ulong slow_launch_threads = 0;
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uint sync_binlog_period= 0, sync_relaylog_period= 0,
     sync_relayloginfo_period= 0, sync_masterinfo_period= 0;
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ulong expire_logs_days = 0;
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ulong rpl_recovery_rank=0;
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const char *log_output_str= "FILE";
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time_t server_start_time, flush_status_time;
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char mysql_home[FN_REFLEN], pidfile_name[FN_REFLEN], system_time_zone[30];
char *default_tz_name;
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char log_error_file[FN_REFLEN], glob_hostname[FN_REFLEN];
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char mysql_real_data_home[FN_REFLEN],
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     language[FN_REFLEN], reg_ext[FN_EXTLEN], mysql_charsets_dir[FN_REFLEN],
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     *opt_init_file, *opt_tc_log_file,
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     def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
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char mysql_unpacked_real_data_home[FN_REFLEN];
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int mysql_unpacked_real_data_home_len;
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uint reg_ext_length;
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const key_map key_map_empty(0);
key_map key_map_full(0);                        // Will be initialized later

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const char *opt_date_time_formats[3];
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uint mysql_data_home_len;
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char mysql_data_home_buff[2], *mysql_data_home=mysql_real_data_home;
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char server_version[SERVER_VERSION_LENGTH];
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char *mysqld_unix_port, *opt_mysql_tmpdir;
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const char **errmesg;			/**< Error messages */
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const char *myisam_recover_options_str="OFF";
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const char *myisam_stats_method_str="nulls_unequal";
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/** name of reference on left espression in rewritten IN subquery */
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const char *in_left_expr_name= "<left expr>";
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/** name of additional condition */
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const char *in_additional_cond= "<IN COND>";
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const char *in_having_cond= "<IN HAVING>";

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my_decimal decimal_zero;
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/* classes for comparation parsing/processing */
Eq_creator eq_creator;
Ne_creator ne_creator;
Gt_creator gt_creator;
Lt_creator lt_creator;
Ge_creator ge_creator;
Le_creator le_creator;

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FILE *bootstrap_file;
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int bootstrap_error;
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FILE *stderror_file=0;
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I_List<THD> threads;
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I_List<NAMED_LIST> key_caches;
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Rpl_filter* rpl_filter;
Rpl_filter* binlog_filter;
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struct system_variables global_system_variables;
struct system_variables max_system_variables;
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struct system_status_var global_status_var;
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MY_TMPDIR mysql_tmpdir_list;
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MY_BITMAP temp_pool;
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CHARSET_INFO *system_charset_info, *files_charset_info ;
CHARSET_INFO *national_charset_info, *table_alias_charset;
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CHARSET_INFO *character_set_filesystem;
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MY_LOCALE *my_default_lc_time_names;

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SHOW_COMP_OPTION have_ssl, have_symlink, have_dlopen, have_query_cache;
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SHOW_COMP_OPTION have_geometry, have_rtree_keys;
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SHOW_COMP_OPTION have_crypt, have_compress;
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SHOW_COMP_OPTION have_community_features;
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/* Thread specific variables */
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pthread_key(MEM_ROOT**,THR_MALLOC);
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pthread_key(THD*, THR_THD);
pthread_mutex_t LOCK_mysql_create_db, LOCK_Acl, LOCK_open, LOCK_thread_count,
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		LOCK_mapped_file, LOCK_status, LOCK_global_read_lock,
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		LOCK_error_log, LOCK_uuid_generator,
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		LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create,
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		LOCK_crypt, LOCK_bytes_sent, LOCK_bytes_received,
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	        LOCK_global_system_variables,
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		LOCK_user_conn, LOCK_slave_list, LOCK_active_mi,
                LOCK_connection_count;
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/**
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  The below lock protects access to two global server variables:
  max_prepared_stmt_count and prepared_stmt_count. These variables
  set the limit and hold the current total number of prepared statements
  in the server, respectively. As PREPARE/DEALLOCATE rate in a loaded
  server may be fairly high, we need a dedicated lock.
*/
pthread_mutex_t LOCK_prepared_stmt_count;
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#ifdef HAVE_OPENSSL
pthread_mutex_t LOCK_des_key_file;
#endif
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rw_lock_t	LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
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rw_lock_t	LOCK_system_variables_hash;
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pthread_cond_t COND_refresh, COND_thread_count, COND_global_read_lock;
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pthread_t signal_thread;
pthread_attr_t connection_attrib;
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pthread_mutex_t  LOCK_server_started;
pthread_cond_t  COND_server_started;

int mysqld_server_started= 0;
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File_parser_dummy_hook file_parser_dummy_hook;

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/* replication parameters, if master_host is not NULL, we are a slave */
uint master_port= MYSQL_PORT, master_connect_retry = 60;
uint report_port= MYSQL_PORT;
ulong master_retry_count=0;
char *master_user, *master_password, *master_host, *master_info_file;
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char *relay_log_info_file, *report_user, *report_password, *report_host;
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char *opt_relay_logname = 0, *opt_relaylog_index_name=0;
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my_bool master_ssl;
char *master_ssl_key, *master_ssl_cert;
char *master_ssl_ca, *master_ssl_capath, *master_ssl_cipher;
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char *opt_logname, *opt_slow_logname;
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/* Static variables */

static bool kill_in_progress, segfaulted;
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#ifdef HAVE_STACK_TRACE_ON_SEGV
static my_bool opt_do_pstack;
#endif /* HAVE_STACK_TRACE_ON_SEGV */
static my_bool opt_bootstrap, opt_myisam_log;
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static int cleanup_done;
static ulong opt_specialflag, opt_myisam_block_size;
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static char *opt_update_logname, *opt_binlog_index_name;
static char *opt_tc_heuristic_recover;
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static char *mysql_home_ptr, *pidfile_name_ptr;
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static int defaults_argc;
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static char **defaults_argv;
static char *opt_bin_logname;

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int orig_argc;
char **orig_argv;

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static my_socket unix_sock,ip_sock;
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struct rand_struct sql_rand; ///< used by sql_class.cc:THD::THD()
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#ifndef EMBEDDED_LIBRARY
struct passwd *user_info;
static pthread_t select_thread;
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static uint thr_kill_signal;
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#endif

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/* OS specific variables */

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#ifdef __WIN__
#undef	 getpid
#include <process.h>
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static pthread_cond_t COND_handler_count;
static uint handler_count;
static bool start_mode=0, use_opt_args;
static int opt_argc;
static char **opt_argv;

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#if !defined(EMBEDDED_LIBRARY)
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static HANDLE hEventShutdown;
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static char shutdown_event_name[40];
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#include "nt_servc.h"
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static	 NTService  Service;	      ///< Service object for WinNT
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#endif /* EMBEDDED_LIBRARY */
#endif /* __WIN__ */

#ifdef __NT__
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static char pipe_name[512];
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static SECURITY_ATTRIBUTES saPipeSecurity;
static SECURITY_DESCRIPTOR sdPipeDescriptor;
static HANDLE hPipe = INVALID_HANDLE_VALUE;
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#endif
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#ifndef EMBEDDED_LIBRARY
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bool mysqld_embedded=0;
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#else
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bool mysqld_embedded=1;
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#endif

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static my_bool plugins_are_initialized= FALSE;

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#ifndef DBUG_OFF
static const char* default_dbug_option;
#endif
#ifdef HAVE_LIBWRAP
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const char *libwrapName= NULL;
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int allow_severity = LOG_INFO;
int deny_severity = LOG_WARNING;
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#endif
#ifdef HAVE_QUERY_CACHE
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static ulong query_cache_limit= 0;
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ulong query_cache_min_res_unit= QUERY_CACHE_MIN_RESULT_DATA_SIZE;
Query_cache query_cache;
#endif
#ifdef HAVE_SMEM
char *shared_memory_base_name= default_shared_memory_base_name;
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my_bool opt_enable_shared_memory;
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HANDLE smem_event_connect_request= 0;
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#endif

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scheduler_functions thread_scheduler;

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#define SSL_VARS_NOT_STATIC
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#include "sslopt-vars.h"
#ifdef HAVE_OPENSSL
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#include <openssl/crypto.h>
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#ifndef HAVE_YASSL
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typedef struct CRYPTO_dynlock_value
{
  rw_lock_t lock;
} openssl_lock_t;

static openssl_lock_t *openssl_stdlocks;
static openssl_lock_t *openssl_dynlock_create(const char *, int);
static void openssl_dynlock_destroy(openssl_lock_t *, const char *, int);
static void openssl_lock_function(int, int, const char *, int);
static void openssl_lock(int, openssl_lock_t *, const char *, int);
static unsigned long openssl_id_function();
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#endif
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char *des_key_file;
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struct st_VioSSLFd *ssl_acceptor_fd;
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#endif /* HAVE_OPENSSL */

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/**
  Number of currently active user connections. The variable is protected by
  LOCK_connection_count.
*/
uint connection_count= 0;
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/* Function declarations */

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pthread_handler_t signal_hand(void *arg);
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static int mysql_init_variables(void);
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static int get_options(int *argc,char **argv);
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extern "C" my_bool mysqld_get_one_option(int, const struct my_option *, char *);
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static void set_server_version(void);
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static int init_thread_environment();
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static char *get_relative_path(const char *path);
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static int fix_paths(void);
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pthread_handler_t handle_connections_sockets(void *arg);
pthread_handler_t kill_server_thread(void *arg);
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static void bootstrap(FILE *file);
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static bool read_init_file(char *file_name);
#ifdef __NT__
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pthread_handler_t handle_connections_namedpipes(void *arg);
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#endif
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#ifdef HAVE_SMEM
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pthread_handler_t handle_connections_shared_memory(void *arg);
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#endif
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pthread_handler_t handle_slave(void *arg);
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static ulong find_bit_type(const char *x, TYPELIB *bit_lib);
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static ulong find_bit_type_or_exit(const char *x, TYPELIB *bit_lib,
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                                   const char *option, int *error);
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static void clean_up(bool print_message);
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static int test_if_case_insensitive(const char *dir_name);

#ifndef EMBEDDED_LIBRARY
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static void usage(void);
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static void start_signal_handler(void);
static void close_server_sock();
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static void clean_up_mutexes(void);
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static void wait_for_signal_thread_to_end(void);
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static void create_pid_file();
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static void end_ssl();
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#endif

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#ifndef EMBEDDED_LIBRARY
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/****************************************************************************
** Code to end mysqld
****************************************************************************/

static void close_connections(void)
{
#ifdef EXTRA_DEBUG
  int count=0;
#endif
  DBUG_ENTER("close_connections");

  /* Clear thread cache */
  kill_cached_threads++;
  flush_thread_cache();

  /* kill connection thread */
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#if !defined(__WIN__) && !defined(__NETWARE__)
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  DBUG_PRINT("quit", ("waiting for select thread: 0x%lx",
                      (ulong) select_thread));
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  (void) pthread_mutex_lock(&LOCK_thread_count);

  while (select_thread_in_use)
  {
    struct timespec abstime;
    int error;
    LINT_INIT(error);
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    DBUG_PRINT("info",("Waiting for select thread"));
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#ifndef DONT_USE_THR_ALARM
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    if (pthread_kill(select_thread, thr_client_alarm))
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      break;					// allready dead
#endif
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    set_timespec(abstime, 2);
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    for (uint tmp=0 ; tmp < 10 && select_thread_in_use; tmp++)
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    {
      error=pthread_cond_timedwait(&COND_thread_count,&LOCK_thread_count,
				   &abstime);
      if (error != EINTR)
	break;
    }
#ifdef EXTRA_DEBUG
    if (error != 0 && !count++)
      sql_print_error("Got error %d from pthread_cond_timedwait",error);
#endif
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    close_server_sock();
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  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);
#endif /* __WIN__ */


  /* Abort listening to new connections */
  DBUG_PRINT("quit",("Closing sockets"));
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  if (!opt_disable_networking )
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  {
    if (ip_sock != INVALID_SOCKET)
    {
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      (void) shutdown(ip_sock, SHUT_RDWR);
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      (void) closesocket(ip_sock);
      ip_sock= INVALID_SOCKET;
    }
  }
#ifdef __NT__
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  if (hPipe != INVALID_HANDLE_VALUE && opt_enable_named_pipe)
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  {
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    HANDLE temp;
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    DBUG_PRINT("quit", ("Closing named pipes") );
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    /* Create connection to the handle named pipe handler to break the loop */
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    if ((temp = CreateFile(pipe_name,
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			   GENERIC_READ | GENERIC_WRITE,
			   0,
			   NULL,
			   OPEN_EXISTING,
			   0,
			   NULL )) != INVALID_HANDLE_VALUE)
    {
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      WaitNamedPipe(pipe_name, 1000);
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      DWORD dwMode = PIPE_READMODE_BYTE | PIPE_WAIT;
      SetNamedPipeHandleState(temp, &dwMode, NULL, NULL);
      CancelIo(temp);
      DisconnectNamedPipe(temp);
      CloseHandle(temp);
    }
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  }
#endif
#ifdef HAVE_SYS_UN_H
  if (unix_sock != INVALID_SOCKET)
  {
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    (void) shutdown(unix_sock, SHUT_RDWR);
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    (void) closesocket(unix_sock);
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    (void) unlink(mysqld_unix_port);
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    unix_sock= INVALID_SOCKET;
  }
#endif
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  end_thr_alarm(0);			 // Abort old alarms.
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  /*
    First signal all threads that it's time to die
    This will give the threads some time to gracefully abort their
    statements and inform their clients that the server is about to die.
  */
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  THD *tmp;
  (void) pthread_mutex_lock(&LOCK_thread_count); // For unlink from list

  I_List_iterator<THD> it(threads);
  while ((tmp=it++))
  {
    DBUG_PRINT("quit",("Informing thread %ld that it's time to die",
		       tmp->thread_id));
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    /* We skip slave threads & scheduler on this first loop through. */
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    if (tmp->slave_thread)
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      continue;
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    tmp->killed= THD::KILL_CONNECTION;
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    thread_scheduler.post_kill_notification(tmp);
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    if (tmp->mysys_var)
    {
      tmp->mysys_var->abort=1;
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      pthread_mutex_lock(&tmp->mysys_var->mutex);
      if (tmp->mysys_var->current_cond)
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      {
	pthread_mutex_lock(tmp->mysys_var->current_mutex);
	pthread_cond_broadcast(tmp->mysys_var->current_cond);
	pthread_mutex_unlock(tmp->mysys_var->current_mutex);
      }
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      pthread_mutex_unlock(&tmp->mysys_var->mutex);
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    }
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count); // For unlink from list

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  Events::deinit();
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  end_slave();

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  if (thread_count)
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    sleep(2);					// Give threads time to die
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  /*
    Force remaining threads to die by closing the connection to the client
    This will ensure that threads that are waiting for a command from the
    client on a blocking read call are aborted.
  */
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  for (;;)
  {
    DBUG_PRINT("quit",("Locking LOCK_thread_count"));
    (void) pthread_mutex_lock(&LOCK_thread_count); // For unlink from list
    if (!(tmp=threads.get()))
    {
      DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
      (void) pthread_mutex_unlock(&LOCK_thread_count);
      break;
    }
#ifndef __bsdi__				// Bug in BSDI kernel
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    if (tmp->vio_ok())
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    {
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      if (global_system_variables.log_warnings)
        sql_print_warning(ER(ER_FORCING_CLOSE),my_progname,
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                          tmp->thread_id,
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                          (tmp->main_security_ctx.user ?
                           tmp->main_security_ctx.user : ""));
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      close_connection(tmp,0,0);
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    }
#endif
    DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
    (void) pthread_mutex_unlock(&LOCK_thread_count);
  }
  /* All threads has now been aborted */
  DBUG_PRINT("quit",("Waiting for threads to die (count=%u)",thread_count));
  (void) pthread_mutex_lock(&LOCK_thread_count);
  while (thread_count)
  {
    (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);

1006
  close_active_mi();
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  DBUG_PRINT("quit",("close_connections thread"));
  DBUG_VOID_RETURN;
}

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static void close_server_sock()
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{
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#ifdef HAVE_CLOSE_SERVER_SOCK
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  DBUG_ENTER("close_server_sock");
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  my_socket tmp_sock;
  tmp_sock=ip_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
    ip_sock=INVALID_SOCKET;
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    DBUG_PRINT("info",("calling shutdown on TCP/IP socket"));
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    VOID(shutdown(tmp_sock, SHUT_RDWR));
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#if defined(__NETWARE__)
1024
    /*
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      The following code is disabled for normal systems as it causes MySQL
      to hang on AIX 4.3 during shutdown
1027
    */
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    DBUG_PRINT("info",("calling closesocket on TCP/IP socket"));
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    VOID(closesocket(tmp_sock));
1030
#endif
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  }
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  tmp_sock=unix_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
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    unix_sock=INVALID_SOCKET;
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    DBUG_PRINT("info",("calling shutdown on unix socket"));
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    VOID(shutdown(tmp_sock, SHUT_RDWR));
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#if defined(__NETWARE__)
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    /*
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      The following code is disabled for normal systems as it may cause MySQL
      to hang on AIX 4.3 during shutdown
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    */
    DBUG_PRINT("info",("calling closesocket on unix/IP socket"));
1044
    VOID(closesocket(tmp_sock));
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#endif
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    VOID(unlink(mysqld_unix_port));
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  }
  DBUG_VOID_RETURN;
#endif
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}
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#endif /*EMBEDDED_LIBRARY*/

1054

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void kill_mysql(void)
{
  DBUG_ENTER("kill_mysql");

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#if defined(SIGNALS_DONT_BREAK_READ) && !defined(EMBEDDED_LIBRARY)
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  abort_loop=1;					// Break connection loops
  close_server_sock();				// Force accept to wake up
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#endif
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#if defined(__WIN__)
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#if !defined(EMBEDDED_LIBRARY)
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  {
    if (!SetEvent(hEventShutdown))
    {
      DBUG_PRINT("error",("Got error: %ld from SetEvent",GetLastError()));
    }
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    /*
      or:
      HANDLE hEvent=OpenEvent(0, FALSE, "MySqlShutdown");
      SetEvent(hEventShutdown);
      CloseHandle(hEvent);
    */
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  }
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#endif
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#elif defined(HAVE_PTHREAD_KILL)
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  if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL))
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  {
    DBUG_PRINT("error",("Got error %d from pthread_kill",errno)); /* purecov: inspected */
  }
#elif !defined(SIGNALS_DONT_BREAK_READ)
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  kill(current_pid, MYSQL_KILL_SIGNAL);
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#endif
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  DBUG_PRINT("quit",("After pthread_kill"));
  shutdown_in_progress=1;			// Safety if kill didn't work
#ifdef SIGNALS_DONT_BREAK_READ
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  if (!kill_in_progress)
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  {
    pthread_t tmp;
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    abort_loop=1;
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    if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
			   (void*) 0))
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      sql_print_error("Can't create thread to kill server");
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  }
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#endif
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  DBUG_VOID_RETURN;
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}

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/**
  Force server down. Kill all connections and threads and exit.
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  @param  sig_ptr       Signal number that caused kill_server to be called.
1106

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  @note
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    A signal number of 0 mean that the function was not called
    from a signal handler and there is thus no signal to block
    or stop, we just want to kill the server.
*/
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#if defined(__NETWARE__)
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extern "C" void kill_server(int sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_VOID_RETURN
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#elif !defined(__WIN__)
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static void *kill_server(void *sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_RETURN(0)
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#else
static void __cdecl kill_server(int sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_VOID_RETURN
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#endif
{
  DBUG_ENTER("kill_server");
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#ifndef EMBEDDED_LIBRARY
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  int sig=(int) (long) sig_ptr;			// This is passed a int
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  // if there is a signal during the kill in progress, ignore the other
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  if (kill_in_progress)				// Safety
    RETURN_FROM_KILL_SERVER;
  kill_in_progress=TRUE;
  abort_loop=1;					// This should be set
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  if (sig != 0) // 0 is not a valid signal number
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    my_sigset(sig, SIG_IGN);                    /* purify inspected */
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  if (sig == MYSQL_KILL_SIGNAL || sig == 0)
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    sql_print_information(ER(ER_NORMAL_SHUTDOWN),my_progname);
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  else
    sql_print_error(ER(ER_GOT_SIGNAL),my_progname,sig); /* purecov: inspected */

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#if defined(HAVE_SMEM) && defined(__WIN__)    
  /*    
   Send event to smem_event_connect_request for aborting    
   */    
  if (!SetEvent(smem_event_connect_request))    
  {      
	  DBUG_PRINT("error",
		("Got error: %ld from SetEvent of smem_event_connect_request",
		 GetLastError()));    
  }
#endif  
  
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  close_connections();
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  if (sig != MYSQL_KILL_SIGNAL &&
      sig != 0)
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    unireg_abort(1);				/* purecov: inspected */
  else
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    unireg_end();
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1158
  /* purecov: begin deadcode */
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#ifdef __NETWARE__
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  if (!event_flag)
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    pthread_join(select_thread, NULL);		// wait for main thread
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#endif /* __NETWARE__ */
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  my_thread_end();
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  pthread_exit(0);
  /* purecov: end */
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#endif /* EMBEDDED_LIBRARY */
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  RETURN_FROM_KILL_SERVER;
}


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#if defined(USE_ONE_SIGNAL_HAND) || (defined(__NETWARE__) && defined(SIGNALS_DONT_BREAK_READ))
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pthread_handler_t kill_server_thread(void *arg __attribute__((unused)))
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{
  my_thread_init();				// Initialize new thread
  kill_server(0);
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  /* purecov: begin deadcode */
  my_thread_end();
  pthread_exit(0);
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  return 0;
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  /* purecov: end */
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}
#endif

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extern "C" sig_handler print_signal_warning(int sig)
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{
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  if (global_system_variables.log_warnings)
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    sql_print_warning("Got signal %d from thread %ld", sig,my_thread_id());
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#ifdef DONT_REMEMBER_SIGNAL
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  my_sigset(sig,print_signal_warning);		/* int. thread system calls */
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#endif
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#if !defined(__WIN__) && !defined(__NETWARE__)
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  if (sig == SIGALRM)
    alarm(2);					/* reschedule alarm */
#endif
}

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#ifndef EMBEDDED_LIBRARY
1201

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/**
  cleanup all memory and end program nicely.
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    If SIGNALS_DONT_BREAK_READ is defined, this function is called
    by the main thread. To get MySQL to shut down nicely in this case
    (Mac OS X) we have to call exit() instead if pthread_exit().
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  @note
    This function never returns.
*/
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void unireg_end(void)
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{
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  clean_up(1);
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  my_thread_end();
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#if defined(SIGNALS_DONT_BREAK_READ) && !defined(__NETWARE__)
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  exit(0);
#else
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  pthread_exit(0);				// Exit is in main thread
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#endif
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}

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extern "C" void unireg_abort(int exit_code)
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{
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  DBUG_ENTER("unireg_abort");
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  if (opt_help)
    usage();
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  if (exit_code)
    sql_print_error("Aborting\n");
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  clean_up(!opt_help && (exit_code || !opt_bootstrap)); /* purecov: inspected */
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  DBUG_PRINT("quit",("done with cleanup in unireg_abort"));
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  wait_for_signal_thread_to_end();
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  clean_up_mutexes();
  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
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  exit(exit_code); /* purecov: inspected */
}
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#endif /*EMBEDDED_LIBRARY*/
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void clean_up(bool print_message)
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{
  DBUG_PRINT("exit",("clean_up"));
  if (cleanup_done++)
    return; /* purecov: inspected */
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  stop_handle_manager();
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  release_ddl_log();

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  /*
    make sure that handlers finish up
    what they have that is dependent on the binlog
  */
  ha_binlog_end(current_thd);
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  logger.cleanup_base();

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  injector::free_instance();
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  mysql_bin_log.cleanup();

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#ifdef HAVE_REPLICATION
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  if (use_slave_mask)
    bitmap_free(&slave_error_mask);
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#endif
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  my_tz_free();
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  my_database_names_free();
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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  servers_free(1);
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  acl_free(1);
  grant_free();
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#endif
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  query_cache_destroy();
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  table_cache_free();
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  table_def_free();
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  hostname_cache_free();
  item_user_lock_free();
  lex_free();				/* Free some memory */
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  item_create_cleanup();
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  set_var_free();
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  free_charsets();
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  if (!opt_noacl)
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  {
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#ifdef HAVE_DLOPEN
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    udf_free();
1286
#endif
1287
  }
1288
  plugin_shutdown();
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  ha_end();
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  if (tc_log)
    tc_log->close();
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  delegates_destroy();
1293
  xid_cache_free();
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  delete_elements(&key_caches, (void (*)(const char*, uchar*)) free_key_cache);
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  multi_keycache_free();
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  free_status_vars();
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  end_thr_alarm(1);			/* Free allocated memory */
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  my_free_open_file_info();
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  my_free((char*) global_system_variables.date_format,
	  MYF(MY_ALLOW_ZERO_PTR));
  my_free((char*) global_system_variables.time_format,
	  MYF(MY_ALLOW_ZERO_PTR));
  my_free((char*) global_system_variables.datetime_format,
	  MYF(MY_ALLOW_ZERO_PTR));
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  if (defaults_argv)
    free_defaults(defaults_argv);
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  my_free(sys_init_connect.value, MYF(MY_ALLOW_ZERO_PTR));
  my_free(sys_init_slave.value, MYF(MY_ALLOW_ZERO_PTR));
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  my_free(sys_var_general_log_path.value, MYF(MY_ALLOW_ZERO_PTR));
  my_free(sys_var_slow_log_path.value, MYF(MY_ALLOW_ZERO_PTR));
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  free_tmpdir(&mysql_tmpdir_list);
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#ifdef HAVE_REPLICATION
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  my_free(slave_load_tmpdir,MYF(MY_ALLOW_ZERO_PTR));
1314
#endif
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  x_free(opt_bin_logname);
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  x_free(opt_relay_logname);
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  x_free(opt_secure_file_priv);
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  bitmap_free(&temp_pool);
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  free_max_user_conn();
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#ifdef HAVE_REPLICATION
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  end_slave_list();
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#endif
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  delete binlog_filter;
  delete rpl_filter;
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#ifndef EMBEDDED_LIBRARY
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  end_ssl();
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#endif
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  vio_end();
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#ifdef USE_REGEX
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  my_regex_end();
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#endif
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#if !defined(EMBEDDED_LIBRARY)
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  if (!opt_bootstrap)
    (void) my_delete(pidfile_name,MYF(0));	// This may not always exist
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#endif
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  if (print_message && errmesg && server_start_time)
    sql_print_information(ER(ER_SHUTDOWN_COMPLETE),my_progname);
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  thread_scheduler.end();
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  finish_client_errs();
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  my_free((uchar*) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST),
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          MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR));
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  DBUG_PRINT("quit", ("Error messages freed"));
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  /* Tell main we are ready */
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  logger.cleanup_end();
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  (void) pthread_mutex_lock(&LOCK_thread_count);
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  DBUG_PRINT("quit", ("got thread count lock"));
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  ready_to_exit=1;
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  /* do the broadcast inside the lock to ensure that my_end() is not called */
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  (void) pthread_cond_broadcast(&COND_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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  /*
    The following lines may never be executed as the main thread may have
    killed us
  */
1357
  DBUG_PRINT("quit", ("done with cleanup"));
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} /* clean_up */


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#ifndef EMBEDDED_LIBRARY

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/**
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  This is mainly needed when running with purify, but it's still nice to
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  know that all child threads have died when mysqld exits.
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*/
static void wait_for_signal_thread_to_end()
{
#ifndef __NETWARE__
  uint i;
  /*
    Wait up to 10 seconds for signal thread to die. We use this mainly to
    avoid getting warnings that my_thread_end has not been called
  */
  for (i= 0 ; i < 100 && signal_thread_in_use; i++)
  {
1377
    if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL) != ESRCH)
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      break;
    my_sleep(100);				// Give it time to die
  }
#endif
}


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static void clean_up_mutexes()
{
  (void) pthread_mutex_destroy(&LOCK_mysql_create_db);
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  (void) pthread_mutex_destroy(&LOCK_lock_db);
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  (void) pthread_mutex_destroy(&LOCK_Acl);
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  (void) rwlock_destroy(&LOCK_grant);
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  (void) pthread_mutex_destroy(&LOCK_open);
  (void) pthread_mutex_destroy(&LOCK_thread_count);
  (void) pthread_mutex_destroy(&LOCK_mapped_file);
  (void) pthread_mutex_destroy(&LOCK_status);
  (void) pthread_mutex_destroy(&LOCK_error_log);
  (void) pthread_mutex_destroy(&LOCK_delayed_insert);
  (void) pthread_mutex_destroy(&LOCK_delayed_status);
  (void) pthread_mutex_destroy(&LOCK_delayed_create);
  (void) pthread_mutex_destroy(&LOCK_manager);
  (void) pthread_mutex_destroy(&LOCK_crypt);
  (void) pthread_mutex_destroy(&LOCK_bytes_sent);
  (void) pthread_mutex_destroy(&LOCK_bytes_received);
  (void) pthread_mutex_destroy(&LOCK_user_conn);
1404
  (void) pthread_mutex_destroy(&LOCK_connection_count);
1405
  Events::destroy_mutexes();
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#ifdef HAVE_OPENSSL
  (void) pthread_mutex_destroy(&LOCK_des_key_file);
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#ifndef HAVE_YASSL
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  for (int i= 0; i < CRYPTO_num_locks(); ++i)
    (void) rwlock_destroy(&openssl_stdlocks[i].lock);
  OPENSSL_free(openssl_stdlocks);
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#endif
#endif
1414
#ifdef HAVE_REPLICATION
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  (void) pthread_mutex_destroy(&LOCK_rpl_status);
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  (void) pthread_cond_destroy(&COND_rpl_status);
#endif
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  (void) pthread_mutex_destroy(&LOCK_active_mi);
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  (void) rwlock_destroy(&LOCK_sys_init_connect);
  (void) rwlock_destroy(&LOCK_sys_init_slave);
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  (void) pthread_mutex_destroy(&LOCK_global_system_variables);
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  (void) rwlock_destroy(&LOCK_system_variables_hash);
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  (void) pthread_mutex_destroy(&LOCK_global_read_lock);
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  (void) pthread_mutex_destroy(&LOCK_uuid_generator);
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  (void) pthread_mutex_destroy(&LOCK_prepared_stmt_count);
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  (void) pthread_cond_destroy(&COND_thread_count);
  (void) pthread_cond_destroy(&COND_refresh);
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  (void) pthread_cond_destroy(&COND_global_read_lock);
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  (void) pthread_cond_destroy(&COND_thread_cache);
  (void) pthread_cond_destroy(&COND_flush_thread_cache);
  (void) pthread_cond_destroy(&COND_manager);
}
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#endif /*EMBEDDED_LIBRARY*/


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/****************************************************************************
** Init IP and UNIX socket
****************************************************************************/

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#ifndef EMBEDDED_LIBRARY
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static void set_ports()
{
  char	*env;
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  if (!mysqld_port && !opt_disable_networking)
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  {					// Get port if not from commandline
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    mysqld_port= MYSQL_PORT;
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    /*
      if builder specifically requested a default port, use that
      (even if it coincides with our factory default).
      only if they didn't do we check /etc/services (and, failing
      on that, fall back to the factory default of 3306).
      either default can be overridden by the environment variable
      MYSQL_TCP_PORT, which in turn can be overridden with command
      line options.
    */

#if MYSQL_PORT_DEFAULT == 0
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    struct  servent *serv_ptr;
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    if ((serv_ptr= getservbyname("mysql", "tcp")))
      mysqld_port= ntohs((u_short) serv_ptr->s_port); /* purecov: inspected */
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#endif
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    if ((env = getenv("MYSQL_TCP_PORT")))
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      mysqld_port= (uint) atoi(env);		/* purecov: inspected */
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  }
1467
  if (!mysqld_unix_port)
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  {
#ifdef __WIN__
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    mysqld_unix_port= (char*) MYSQL_NAMEDPIPE;
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#else
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    mysqld_unix_port= (char*) MYSQL_UNIX_ADDR;
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#endif
    if ((env = getenv("MYSQL_UNIX_PORT")))
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      mysqld_unix_port= env;			/* purecov: inspected */
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  }
}

/* Change to run as another user if started with --user */

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static struct passwd *check_user(const char *user)
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{
1483
#if !defined(__WIN__) && !defined(__NETWARE__)
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  struct passwd *tmp_user_info;
1485
  uid_t user_id= geteuid();
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  // Don't bother if we aren't superuser
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  if (user_id)
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  {
    if (user)
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    {
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      /* Don't give a warning, if real user is same as given with --user */
      /* purecov: begin tested */
      tmp_user_info= getpwnam(user);
      if ((!tmp_user_info || user_id != tmp_user_info->pw_uid) &&
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	  global_system_variables.log_warnings)
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        sql_print_warning(
                    "One can only use the --user switch if running as root\n");
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      /* purecov: end */
1500
    }
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    return NULL;
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  }
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  if (!user)
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  {
    if (!opt_bootstrap)
    {
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      sql_print_error("Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n");
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      unireg_abort(1);
    }
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    return NULL;
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  }
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  /* purecov: begin tested */
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  if (!strcmp(user,"root"))
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    return NULL;                        // Avoid problem with dynamic libraries
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  if (!(tmp_user_info= getpwnam(user)))
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  {
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    // Allow a numeric uid to be used
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    const char *pos;
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    for (pos= user; my_isdigit(mysqld_charset,*pos); pos++) ;
    if (*pos)                                   // Not numeric id
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      goto err;
1523
    if (!(tmp_user_info= getpwuid(atoi(user))))
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      goto err;
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  }
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  return tmp_user_info;
  /* purecov: end */
1528 1529

err:
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  sql_print_error("Fatal error: Can't change to run as user '%s' ;  Please check that the user exists!\n",user);
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  unireg_abort(1);
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#ifdef PR_SET_DUMPABLE
  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    /* inform kernel that process is dumpable */
    (void) prctl(PR_SET_DUMPABLE, 1);
  }
#endif

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#endif
  return NULL;
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}

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static void set_user(const char *user, struct passwd *user_info_arg)
1546
{
1547
  /* purecov: begin tested */
1548
#if !defined(__WIN__) && !defined(__NETWARE__)
1549
  DBUG_ASSERT(user_info_arg != 0);
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#ifdef HAVE_INITGROUPS
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  /*
    We can get a SIGSEGV when calling initgroups() on some systems when NSS
    is configured to use LDAP and the server is statically linked.  We set
    calling_initgroups as a flag to the SIGSEGV handler that is then used to
    output a specific message to help the user resolve this problem.
  */
  calling_initgroups= TRUE;
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  initgroups((char*) user, user_info_arg->pw_gid);
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  calling_initgroups= FALSE;
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#endif
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  if (setgid(user_info_arg->pw_gid) == -1)
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  {
    sql_perror("setgid");
    unireg_abort(1);
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  }
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  if (setuid(user_info_arg->pw_uid) == -1)
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  {
    sql_perror("setuid");
    unireg_abort(1);
  }
#endif
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  /* purecov: end */
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}

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static void set_effective_user(struct passwd *user_info_arg)
1577
{
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#if !defined(__WIN__) && !defined(__NETWARE__)
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  DBUG_ASSERT(user_info_arg != 0);
  if (setregid((gid_t)-1, user_info_arg->pw_gid) == -1)
1581
  {
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    sql_perror("setregid");
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    unireg_abort(1);
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  }
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  if (setreuid((uid_t)-1, user_info_arg->pw_uid) == -1)
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  {
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    sql_perror("setreuid");
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    unireg_abort(1);
  }
#endif
}


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/** Change root user if started with @c --chroot . */
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static void set_root(const char *path)
{
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#if !defined(__WIN__) && !defined(__NETWARE__)
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  if (chroot(path) == -1)
  {
    sql_perror("chroot");
    unireg_abort(1);
  }
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  my_setwd("/", MYF(0));
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#endif
}

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static void network_init(void)
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{
  struct sockaddr_in	IPaddr;
#ifdef HAVE_SYS_UN_H
  struct sockaddr_un	UNIXaddr;
#endif
  int	arg=1;
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  int   ret;
  uint  waited;
  uint  this_wait;
  uint  retry;
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  DBUG_ENTER("network_init");
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  LINT_INIT(ret);
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  if (thread_scheduler.init())
    unireg_abort(1);			/* purecov: inspected */

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  set_ports();

1626
  if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap)
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  {
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    DBUG_PRINT("general",("IP Socket is %d",mysqld_port));
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    ip_sock = socket(AF_INET, SOCK_STREAM, 0);
    if (ip_sock == INVALID_SOCKET)
    {
      DBUG_PRINT("error",("Got error: %d from socket()",socket_errno));
      sql_perror(ER(ER_IPSOCK_ERROR));		/* purecov: tested */
      unireg_abort(1);				/* purecov: tested */
    }
    bzero((char*) &IPaddr, sizeof(IPaddr));
    IPaddr.sin_family = AF_INET;
    IPaddr.sin_addr.s_addr = my_bind_addr;
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    IPaddr.sin_port = (unsigned short) htons((unsigned short) mysqld_port);
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#ifndef __WIN__
    /*
      We should not use SO_REUSEADDR on windows as this would enable a
      user to open two mysqld servers with the same TCP/IP port.
    */
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    (void) setsockopt(ip_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,sizeof(arg));
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#endif /* __WIN__ */
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    /*
      Sometimes the port is not released fast enough when stopping and
      restarting the server. This happens quite often with the test suite
      on busy Linux systems. Retry to bind the address at these intervals:
      Sleep intervals: 1, 2, 4,  6,  9, 13, 17, 22, ...
      Retry at second: 1, 3, 7, 13, 22, 35, 52, 74, ...
      Limit the sequence by mysqld_port_timeout (set --port-open-timeout=#).
    */
    for (waited= 0, retry= 1; ; retry++, waited+= this_wait)
    {
      if (((ret= bind(ip_sock, my_reinterpret_cast(struct sockaddr *) (&IPaddr),
                      sizeof(IPaddr))) >= 0) ||
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          (socket_errno != SOCKET_EADDRINUSE) ||
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          (waited >= mysqld_port_timeout))
        break;
      sql_print_information("Retrying bind on TCP/IP port %u", mysqld_port);
      this_wait= retry * retry / 3 + 1;
      sleep(this_wait);
    }
    if (ret < 0)
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    {
      DBUG_PRINT("error",("Got error: %d from bind",socket_errno));
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      sql_perror("Can't start server: Bind on TCP/IP port");
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      sql_print_error("Do you already have another mysqld server running on port: %d ?",mysqld_port);
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      unireg_abort(1);
    }
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    if (listen(ip_sock,(int) back_log) < 0)
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    {
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      sql_perror("Can't start server: listen() on TCP/IP port");
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      sql_print_error("listen() on TCP/IP failed with error %d",
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		      socket_errno);
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      unireg_abort(1);
    }
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  }
1682

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#ifdef __NT__
  /* create named pipe */
1685
  if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap &&
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      opt_enable_named_pipe)
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  {
1688 1689
    
    strxnmov(pipe_name, sizeof(pipe_name)-1, "\\\\.\\pipe\\",
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	     mysqld_unix_port, NullS);
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    bzero((char*) &saPipeSecurity, sizeof(saPipeSecurity));
    bzero((char*) &sdPipeDescriptor, sizeof(sdPipeDescriptor));
1693
    if (!InitializeSecurityDescriptor(&sdPipeDescriptor,
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				      SECURITY_DESCRIPTOR_REVISION))
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    {
      sql_perror("Can't start server : Initialize security descriptor");
      unireg_abort(1);
    }
    if (!SetSecurityDescriptorDacl(&sdPipeDescriptor, TRUE, NULL, FALSE))
    {
      sql_perror("Can't start server : Set security descriptor");
      unireg_abort(1);
    }
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    saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES);
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    saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor;
    saPipeSecurity.bInheritHandle = FALSE;
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    if ((hPipe= CreateNamedPipe(pipe_name,
				PIPE_ACCESS_DUPLEX,
				PIPE_TYPE_BYTE |
				PIPE_READMODE_BYTE |
				PIPE_WAIT,
				PIPE_UNLIMITED_INSTANCES,
				(int) global_system_variables.net_buffer_length,
				(int) global_system_variables.net_buffer_length,
				NMPWAIT_USE_DEFAULT_WAIT,
				&saPipeSecurity)) == INVALID_HANDLE_VALUE)
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      {
	LPVOID lpMsgBuf;
	int error=GetLastError();
	FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
		      FORMAT_MESSAGE_FROM_SYSTEM,
		      NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		      (LPTSTR) &lpMsgBuf, 0, NULL );
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	sql_perror((char *)lpMsgBuf);
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	LocalFree(lpMsgBuf);
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	unireg_abort(1);
      }
  }
#endif

1731
#if defined(HAVE_SYS_UN_H)
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  /*
  ** Create the UNIX socket
  */
1735
  if (mysqld_unix_port[0] && !opt_bootstrap)
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  {
1737
    DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port));
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    if (strlen(mysqld_unix_port) > (sizeof(UNIXaddr.sun_path) - 1))
    {
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      sql_print_error("The socket file path is too long (> %u): %s",
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                      (uint) sizeof(UNIXaddr.sun_path) - 1, mysqld_unix_port);
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      unireg_abort(1);
    }
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    if ((unix_sock= socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
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    {
      sql_perror("Can't start server : UNIX Socket "); /* purecov: inspected */
      unireg_abort(1);				/* purecov: inspected */
    }
    bzero((char*) &UNIXaddr, sizeof(UNIXaddr));
    UNIXaddr.sun_family = AF_UNIX;
1752 1753
    strmov(UNIXaddr.sun_path, mysqld_unix_port);
    (void) unlink(mysqld_unix_port);
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    (void) setsockopt(unix_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,
		      sizeof(arg));
    umask(0);
    if (bind(unix_sock, my_reinterpret_cast(struct sockaddr *) (&UNIXaddr),
	     sizeof(UNIXaddr)) < 0)
    {
      sql_perror("Can't start server : Bind on unix socket"); /* purecov: tested */
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      sql_print_error("Do you already have another mysqld server running on socket: %s ?",mysqld_unix_port);
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      unireg_abort(1);					/* purecov: tested */
    }
    umask(((~my_umask) & 0666));
#if defined(S_IFSOCK) && defined(SECURE_SOCKETS)
1766
    (void) chmod(mysqld_unix_port,S_IFSOCK);	/* Fix solaris 2.6 bug */
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#endif
1768
    if (listen(unix_sock,(int) back_log) < 0)
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      sql_print_warning("listen() on Unix socket failed with error %d",
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		      socket_errno);
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  }
#endif
  DBUG_PRINT("info",("server started"));
  DBUG_VOID_RETURN;
}

1777
#endif /*!EMBEDDED_LIBRARY*/
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1779

1780
#ifndef EMBEDDED_LIBRARY
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/**
  Close a connection.
1783

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  @param thd		Thread handle
  @param errcode	Error code to print to console
  @param lock	        1 if we have have to lock LOCK_thread_count
1787

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  @note
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    For the connection that is doing shutdown, this is called twice
*/
1791
void close_connection(THD *thd, uint errcode, bool lock)
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{
1793
  st_vio *vio;
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  DBUG_ENTER("close_connection");
  DBUG_PRINT("enter",("fd: %s  error: '%s'",
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		      thd->net.vio ? vio_description(thd->net.vio) :
		      "(not connected)",
		      errcode ? ER(errcode) : ""));
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  if (lock)
    (void) pthread_mutex_lock(&LOCK_thread_count);
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  thd->killed= THD::KILL_CONNECTION;
  if ((vio= thd->net.vio) != 0)
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  {
    if (errcode)
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      net_send_error(thd, errcode, ER(errcode)); /* purecov: inspected */
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    vio_close(vio);			/* vio is freed in delete thd */
  }
  if (lock)
    (void) pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_VOID_RETURN;
}
1812 1813
#endif /* EMBEDDED_LIBRARY */

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/** Called when a thread is aborted. */
/* ARGSUSED */
1817
extern "C" sig_handler end_thread_signal(int sig __attribute__((unused)))
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{
  THD *thd=current_thd;
  DBUG_ENTER("end_thread_signal");
1821
  if (thd && ! thd->bootstrap)
1822 1823
  {
    statistic_increment(killed_threads, &LOCK_status);
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    thread_scheduler.end_thread(thd,0);		/* purecov: inspected */
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  }
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  DBUG_VOID_RETURN;				/* purecov: deadcode */
}


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/*
  Unlink thd from global list of available connections and free thd

  SYNOPSIS
    unlink_thd()
    thd		 Thread handler

  NOTES
    LOCK_thread_count is locked and left locked
*/

void unlink_thd(THD *thd)
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{
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  DBUG_ENTER("unlink_thd");
  DBUG_PRINT("enter", ("thd: 0x%lx", (long) thd));
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  thd->cleanup();
1846 1847 1848 1849 1850

  pthread_mutex_lock(&LOCK_connection_count);
  --connection_count;
  pthread_mutex_unlock(&LOCK_connection_count);

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  (void) pthread_mutex_lock(&LOCK_thread_count);
  thread_count--;
  delete thd;
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  DBUG_VOID_RETURN;
}

1857

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/*
  Store thread in cache for reuse by new connections

  SYNOPSIS
    cache_thread()

  NOTES
    LOCK_thread_count has to be locked

  RETURN
    0  Thread was not put in cache
    1  Thread is to be reused by new connection.
       (ie, caller should return, not abort with pthread_exit())
*/


static bool cache_thread()
{
  safe_mutex_assert_owner(&LOCK_thread_count);
  if (cached_thread_count < thread_cache_size &&
1878
      ! abort_loop && !kill_cached_threads)
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  {
    /* Don't kill the thread, just put it in cache for reuse */
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    DBUG_PRINT("info", ("Adding thread to cache"));
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    cached_thread_count++;
    while (!abort_loop && ! wake_thread && ! kill_cached_threads)
      (void) pthread_cond_wait(&COND_thread_cache, &LOCK_thread_count);
    cached_thread_count--;
    if (kill_cached_threads)
      pthread_cond_signal(&COND_flush_thread_cache);
    if (wake_thread)
    {
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      THD *thd;
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      wake_thread--;
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      thd= thread_cache.get();
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      thd->thread_stack= (char*) &thd;          // For store_globals
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      (void) thd->store_globals();
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      /*
        THD::mysys_var::abort is associated with physical thread rather
        than with THD object. So we need to reset this flag before using
        this thread for handling of new THD object/connection.
      */
      thd->mysys_var->abort= 0;
1901
      thd->thr_create_utime= my_micro_time();
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      threads.append(thd);
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      return(1);
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    }
  }
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  return(0);
}


/*
  End thread for the current connection

  SYNOPSIS
    one_thread_per_connection_end()
    thd		  Thread handler
    put_in_cache  Store thread in cache, if there is room in it
                  Normally this is true in all cases except when we got
                  out of resources initializing the current thread

  NOTES
    If thread is cached, we will wait until thread is scheduled to be
    reused and then we will return.
    If thread is not cached, we end the thread.

  RETURN
    0    Signal to handle_one_connection to reuse connection
*/

bool one_thread_per_connection_end(THD *thd, bool put_in_cache)
{
  DBUG_ENTER("one_thread_per_connection_end");
  unlink_thd(thd);
  if (put_in_cache)
    put_in_cache= cache_thread();
  pthread_mutex_unlock(&LOCK_thread_count);
  if (put_in_cache)
    DBUG_RETURN(0);                             // Thread is reused
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1939
  /* It's safe to broadcast outside a lock (COND... is not deleted here) */
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  DBUG_PRINT("signal", ("Broadcasting COND_thread_count"));
1941
  my_thread_end();
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  (void) pthread_cond_broadcast(&COND_thread_count);
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  pthread_exit(0);
  DBUG_RETURN(0);                               // Impossible
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}


void flush_thread_cache()
{
  (void) pthread_mutex_lock(&LOCK_thread_count);
  kill_cached_threads++;
  while (cached_thread_count)
  {
    pthread_cond_broadcast(&COND_thread_cache);
    pthread_cond_wait(&COND_flush_thread_cache,&LOCK_thread_count);
  }
  kill_cached_threads--;
  (void) pthread_mutex_unlock(&LOCK_thread_count);
}


#ifdef THREAD_SPECIFIC_SIGPIPE
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/**
  Aborts a thread nicely. Comes here on SIGPIPE.

  @todo
    One should have to fix that thr_alarm know about this thread too.
*/
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extern "C" sig_handler abort_thread(int sig __attribute__((unused)))
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{
  THD *thd=current_thd;
  DBUG_ENTER("abort_thread");
  if (thd)
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    thd->killed= THD::KILL_CONNECTION;
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  DBUG_VOID_RETURN;
}
#endif

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/******************************************************************************
1982 1983 1984
  Setup a signal thread with handles all signals.
  Because Linux doesn't support schemas use a mutex to check that
  the signal thread is ready before continuing
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******************************************************************************/

1987
#if defined(__WIN__)
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001


/*
  On Windows, we use native SetConsoleCtrlHandler for handle events like Ctrl-C
  with graceful shutdown.
  Also, we do not use signal(), but SetUnhandledExceptionFilter instead - as it
  provides possibility to pass the exception to just-in-time debugger, collect
  dumps and potentially also the exception and thread context used to output
  callstack.
*/

static BOOL WINAPI console_event_handler( DWORD type ) 
{
  DBUG_ENTER("console_event_handler");
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#ifndef EMBEDDED_LIBRARY
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  if(type == CTRL_C_EVENT)
  {
     /*
       Do not shutdown before startup is finished and shutdown
       thread is initialized. Otherwise there is a race condition 
       between main thread doing initialization and CTRL-C thread doing
       cleanup, which can result into crash.
     */
2011
#ifndef EMBEDDED_LIBRARY
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     if(hEventShutdown)
       kill_mysql();
     else
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#endif
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       sql_print_warning("CTRL-C ignored during startup");
     DBUG_RETURN(TRUE);
  }
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#endif
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  DBUG_RETURN(FALSE);
}


/*
  In Visual Studio 2005 and later, default SIGABRT handler will overwrite
  any unhandled exception filter set by the application  and will try to
  call JIT debugger. This is not what we want, this we calling __debugbreak
  to stop in debugger, if process is being debugged or to generate 
  EXCEPTION_BREAKPOINT and then handle_segfault will do its magic.
*/

#if (_MSC_VER >= 1400)
static void my_sigabrt_handler(int sig)
{
  __debugbreak();
}
#endif /*_MSC_VER >=1400 */

void win_install_sigabrt_handler(void)
{
#if (_MSC_VER >=1400)
  /*abort() should not override our exception filter*/
  _set_abort_behavior(0,_CALL_REPORTFAULT);
  signal(SIGABRT,my_sigabrt_handler);
#endif /* _MSC_VER >=1400 */
}

#ifdef DEBUG_UNHANDLED_EXCEPTION_FILTER
#define DEBUGGER_ATTACH_TIMEOUT 120
/*
  Wait for debugger to attach and break into debugger. If debugger is not attached,
  resume after timeout.
*/
static void wait_for_debugger(int timeout_sec)
{
   if(!IsDebuggerPresent())
   {
     int i;
     printf("Waiting for debugger to attach, pid=%u\n",GetCurrentProcessId());
     fflush(stdout);
     for(i= 0; i < timeout_sec; i++)
     {
       Sleep(1000);
       if(IsDebuggerPresent())
       {
         /* Break into debugger */
         __debugbreak();
         return;
       }
     }
     printf("pid=%u, debugger not attached after %d seconds, resuming\n",GetCurrentProcessId(),
       timeout_sec);
     fflush(stdout);
   }
}
#endif /* DEBUG_UNHANDLED_EXCEPTION_FILTER */

LONG WINAPI my_unhandler_exception_filter(EXCEPTION_POINTERS *ex_pointers)
{
   static BOOL first_time= TRUE;
   if(!first_time)
   {
     /*
       This routine can be called twice, typically
       when detaching in JIT debugger.
       Return EXCEPTION_EXECUTE_HANDLER to terminate process.
     */
     return EXCEPTION_EXECUTE_HANDLER;
   }
   first_time= FALSE;
#ifdef DEBUG_UNHANDLED_EXCEPTION_FILTER
   /*
    Unfortunately there is no clean way to debug unhandled exception filters,
    as debugger does not stop there(also documented in MSDN) 
    To overcome, one could put a MessageBox, but this will not work in service.
    Better solution is to print error message and sleep some minutes 
    until debugger is attached
  */
  wait_for_debugger(DEBUGGER_ATTACH_TIMEOUT);
#endif /* DEBUG_UNHANDLED_EXCEPTION_FILTER */
  __try
  {
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    my_set_exception_pointers(ex_pointers);
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    handle_segfault(ex_pointers->ExceptionRecord->ExceptionCode);
  }
  __except(EXCEPTION_EXECUTE_HANDLER)
  {
    DWORD written;
    const char msg[] = "Got exception in exception handler!\n";
    WriteFile(GetStdHandle(STD_OUTPUT_HANDLE),msg, sizeof(msg)-1, 
      &written,NULL);
  }
  /*
    Return EXCEPTION_CONTINUE_SEARCH to give JIT debugger
    (drwtsn32 or vsjitdebugger) possibility to attach,
    if JIT debugger is configured.
    Windows Error reporting might generate a dump here.
  */
  return EXCEPTION_CONTINUE_SEARCH;
}


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static void init_signals(void)
{
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  win_install_sigabrt_handler();
  if(opt_console)
    SetConsoleCtrlHandler(console_event_handler,TRUE);
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    /* Avoid MessageBox()es*/
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  _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
  _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
  _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE);
  _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
  _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE);
  _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
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   /*
     Do not use SEM_NOGPFAULTERRORBOX in the following SetErrorMode (),
     because it would prevent JIT debugger and Windows error reporting
     from working. We need WER or JIT-debugging, since our own unhandled
     exception filter is not guaranteed to work in all situation
     (like heap corruption or stack overflow)
   */
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  SetErrorMode(SetErrorMode(0) | SEM_FAILCRITICALERRORS
                               | SEM_NOOPENFILEERRORBOX);
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  SetUnhandledExceptionFilter(my_unhandler_exception_filter);
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}

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static void start_signal_handler(void)
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{
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#ifndef EMBEDDED_LIBRARY
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  // Save vm id of this process
  if (!opt_bootstrap)
    create_pid_file();
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#endif /* EMBEDDED_LIBRARY */
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}
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static void check_data_home(const char *path)
{}
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#elif defined(__NETWARE__)

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/// down server event callback.
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void mysql_down_server_cb(void *, void *)
{
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  event_flag= TRUE;
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  kill_server(0);
}

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/// destroy callback resources.
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void mysql_cb_destroy(void *)
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{
  UnRegisterEventNotification(eh);  // cleanup down event notification
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  NX_UNWRAP_INTERFACE(ref);
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  /* Deregister NSS volume deactivation event */
  NX_UNWRAP_INTERFACE(refneb);
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  if (neb_consumer_id)
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    UnRegisterConsumer(neb_consumer_id, NULL);
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}

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/// initialize callbacks.
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void mysql_cb_init()
{
  // register for down server event
  void *handle = getnlmhandle();
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  rtag_t rt= AllocateResourceTag(handle, "MySQL Down Server Callback",
                                 EventSignature);
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  NX_WRAP_INTERFACE((void *)mysql_down_server_cb, 2, (void **)&ref);
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  eh= RegisterForEventNotification(rt, EVENT_PRE_DOWN_SERVER,
                                   EVENT_PRIORITY_APPLICATION,
                                   NULL, ref, NULL);

  /*
    Register for volume deactivation event
    Wrap the callback function, as it is called by non-LibC thread
  */
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  (void *) NX_WRAP_INTERFACE(neb_event_callback, 1, &refneb);
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  registerwithneb();

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  NXVmRegisterExitHandler(mysql_cb_destroy, NULL);  // clean-up
}

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/** To get the name of the NetWare volume having MySQL data folder. */
2210
static void getvolumename()
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{
  char *p;
  /*
    We assume that data path is already set.
    If not it won't come here. Terminate after volume name
  */
  if ((p= strchr(mysql_real_data_home, ':')))
    strmake(datavolname, mysql_real_data_home,
            (uint) (p - mysql_real_data_home));
}


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/**
  Registering with NEB for NSS Volume Deactivation event.
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*/

2227
static void registerwithneb()
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{

  ConsumerRegistrationInfo reg_info;
    
  /* Clear NEB registration structure */
  bzero((char*) &reg_info, sizeof(struct ConsumerRegistrationInfo));

  /* Fill the NEB consumer information structure */
  reg_info.CRIVersion= 1;  	            // NEB version
  /* NEB Consumer name */
  reg_info.CRIConsumerName= (BYTE *) "MySQL Database Server";
  /* Event of interest */
  reg_info.CRIEventName= (BYTE *) "NSS.ChangeVolState.Enter";
  reg_info.CRIUserParameter= NULL;	    // Consumer Info
  reg_info.CRIEventFlags= 0;	            // Event flags
  /* Consumer NLM handle */
  reg_info.CRIOwnerID= (LoadDefinitionStructure *)getnlmhandle();
  reg_info.CRIConsumerESR= NULL;	    // No consumer ESR required
  reg_info.CRISecurityToken= 0;	            // No security token for the event
  reg_info.CRIConsumerFlags= 0;             // SMP_ENABLED_BIT;	
  reg_info.CRIFilterName= 0;	            // No event filtering
  reg_info.CRIFilterDataLength= 0;          // No filtering data
  reg_info.CRIFilterData= 0;	            // No filtering data
  /* Callback function for the event */
  (void *)reg_info.CRIConsumerCallback= (void *) refneb;
  reg_info.CRIOrder= 0;	                    // Event callback order
  reg_info.CRIConsumerType= CHECK_CONSUMER; // Consumer type

  /* Register for the event with NEB */
  if (RegisterConsumer(&reg_info))
  {
    consoleprintf("Failed to register for NSS Volume Deactivation event \n");
    return;
  }
  /* This ID is required for deregistration */
  neb_consumer_id= reg_info.CRIConsumerID;

  /* Get MySQL data volume name, stored in global variable datavolname */
  getvolumename();

  /*
    Get the NSS volume ID of the MySQL Data volume.
    Volume ID is stored in a global variable
  */
  getvolumeID((BYTE*) datavolname);	
}


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/**
  Callback for NSS Volume Deactivation event.
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*/
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ulong neb_event_callback(struct EventBlock *eblock)
{
  EventChangeVolStateEnter_s *voldata;
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  extern bool nw_panic;

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  voldata= (EventChangeVolStateEnter_s *)eblock->EBEventData;

  /* Deactivation of a volume */
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  if ((voldata->oldState == zVOLSTATE_ACTIVE &&
       voldata->newState == zVOLSTATE_DEACTIVE ||
       voldata->newState == zVOLSTATE_MAINTENANCE))
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  {
    /*
      Ensure that we bring down MySQL server only for MySQL data
      volume deactivation
    */
    if (!memcmp(&voldata->volID, &datavolid, sizeof(VolumeID_t)))
    {
      consoleprintf("MySQL data volume is deactivated, shutting down MySQL Server \n");
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      event_flag= TRUE;
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      nw_panic = TRUE;
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      event_flag= TRUE;
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      kill_server(0);
    }
  }
  return 0;
}


#define ADMIN_VOL_PATH					"_ADMIN:/Volumes/"

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/**
  Function to get NSS volume ID of the MySQL data.
*/
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static void getvolumeID(BYTE *volumeName)
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{
  char path[zMAX_FULL_NAME];
  Key_t rootKey= 0, fileKey= 0;
  QUAD getInfoMask;
  zInfo_s info;
  STATUS status;

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  /* Get the root key */
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  if ((status= zRootKey(0, &rootKey)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed to get root key, status: %d\n.", (int) status);
    goto exit;
  }

  /*
    Get the file key. This is the key to the volume object in the
    NSS admin volumes directory.
  */

  strxmov(path, (const char *) ADMIN_VOL_PATH, (const char *) volumeName,
          NullS);
  if ((status= zOpen(rootKey, zNSS_TASK, zNSPACE_LONG|zMODE_UTF8, 
                     (BYTE *) path, zRR_READ_ACCESS, &fileKey)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed to get file, status: %d\n.", (int) status);
    goto exit;
  }

  getInfoMask= zGET_IDS | zGET_VOLUME_INFO ;
  if ((status= zGetInfo(fileKey, getInfoMask, sizeof(info), 
                        zINFO_VERSION_A, &info)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed in zGetInfo, status: %d\n.", (int) status);
    goto exit;
  }

  /* Copy the data to global variable */
  datavolid.timeLow= info.vol.volumeID.timeLow;
  datavolid.timeMid= info.vol.volumeID.timeMid;
  datavolid.timeHighAndVersion= info.vol.volumeID.timeHighAndVersion;
  datavolid.clockSeqHighAndReserved= info.vol.volumeID.clockSeqHighAndReserved;
  datavolid.clockSeqLow= info.vol.volumeID.clockSeqLow;
  /* This is guranteed to be 6-byte length (but sizeof() would be better) */
  memcpy(datavolid.node, info.vol.volumeID.node, (unsigned int) 6);
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exit:
  if (rootKey)
    zClose(rootKey);
  if (fileKey)
    zClose(fileKey);
}


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static void init_signals(void)
{
  int signals[] = {SIGINT,SIGILL,SIGFPE,SIGSEGV,SIGTERM,SIGABRT};

  for (uint i=0 ; i < sizeof(signals)/sizeof(int) ; i++)
    signal(signals[i], kill_server);
  mysql_cb_init();  // initialize callbacks

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}
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static void start_signal_handler(void)
{
  // Save vm id of this process
  if (!opt_bootstrap)
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    create_pid_file();
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  // no signal handler
}


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/**
  Warn if the data is on a Traditional volume.
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  @note
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    Already done by mysqld_safe
*/
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static void check_data_home(const char *path)
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{
}

2399
#endif /*__WIN__ || __NETWARE */
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#ifdef HAVE_LINUXTHREADS
#define UNSAFE_DEFAULT_LINUX_THREADS 200
2403
#endif
2404

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#if BACKTRACE_DEMANGLE
#include <cxxabi.h>
extern "C" char *my_demangle(const char *mangled_name, int *status)
{
  return abi::__cxa_demangle(mangled_name, NULL, NULL, status);
}
#endif


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extern "C" sig_handler handle_segfault(int sig)
2416
{
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  time_t curr_time;
  struct tm tm;
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  THD *thd=current_thd;
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  /*
    Strictly speaking, one needs a mutex here
    but since we have got SIGSEGV already, things are a mess
    so not having the mutex is not as bad as possibly using a buggy
    mutex - so we keep things simple
  */
2427
  if (segfaulted)
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  {
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    fprintf(stderr, "Fatal " SIGNAL_FMT " while backtracing\n", sig);
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    exit(1);
  }
2432

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  segfaulted = 1;
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  curr_time= my_time(0);
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  localtime_r(&curr_time, &tm);

2438
  fprintf(stderr,"\
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%02d%02d%02d %2d:%02d:%02d - mysqld got " SIGNAL_FMT " ;\n\
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This could be because you hit a bug. It is also possible that this binary\n\
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or one of the libraries it was linked against is corrupt, improperly built,\n\
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or misconfigured. This error can also be caused by malfunctioning hardware.\n",
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          tm.tm_year % 100, tm.tm_mon+1, tm.tm_mday,
          tm.tm_hour, tm.tm_min, tm.tm_sec,
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	  sig);
  fprintf(stderr, "\
We will try our best to scrape up some info that will hopefully help diagnose\n\
the problem, but since we have already crashed, something is definitely wrong\n\
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and this may fail.\n\n");
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  fprintf(stderr, "key_buffer_size=%lu\n",
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          (ulong) dflt_key_cache->key_cache_mem_size);
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  fprintf(stderr, "read_buffer_size=%ld\n", (long) global_system_variables.read_buff_size);
  fprintf(stderr, "max_used_connections=%lu\n", max_used_connections);
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  fprintf(stderr, "max_threads=%u\n", thread_scheduler.max_threads);
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  fprintf(stderr, "threads_connected=%u\n", thread_count);
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  fprintf(stderr, "It is possible that mysqld could use up to \n\
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = %lu K\n\
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bytes of memory\n", ((ulong) dflt_key_cache->key_cache_mem_size +
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		     (global_system_variables.read_buff_size +
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		      global_system_variables.sortbuff_size) *
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		     thread_scheduler.max_threads +
                     max_connections * sizeof(THD)) / 1024);
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  fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n");
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2465
#if defined(HAVE_LINUXTHREADS)
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  if (sizeof(char*) == 4 && thread_count > UNSAFE_DEFAULT_LINUX_THREADS)
  {
    fprintf(stderr, "\
You seem to be running 32-bit Linux and have %d concurrent connections.\n\
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If you have not changed STACK_SIZE in LinuxThreads and built the binary \n\
yourself, LinuxThreads is quite likely to steal a part of the global heap for\n\
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the thread stack. Please read http://dev.mysql.com/doc/mysql/en/linux.html\n\n",
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	    thread_count);
  }
#endif /* HAVE_LINUXTHREADS */
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#ifdef HAVE_STACKTRACE
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  if (!(test_flags & TEST_NO_STACKTRACE))
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  {
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    fprintf(stderr,"thd: 0x%lx\n",(long) thd);
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    fprintf(stderr,"\
Attempting backtrace. You can use the following information to find out\n\
where mysqld died. If you see no messages after this, something went\n\
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terribly wrong...\n");  
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    my_print_stacktrace(thd ? (uchar*) thd->thread_stack : NULL,
                        my_thread_stack_size);
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  }
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  if (thd)
  {
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    const char *kreason= "UNKNOWN";
    switch (thd->killed) {
    case THD::NOT_KILLED:
      kreason= "NOT_KILLED";
      break;
    case THD::KILL_BAD_DATA:
      kreason= "KILL_BAD_DATA";
      break;
    case THD::KILL_CONNECTION:
      kreason= "KILL_CONNECTION";
      break;
    case THD::KILL_QUERY:
      kreason= "KILL_QUERY";
      break;
    case THD::KILLED_NO_VALUE:
      kreason= "KILLED_NO_VALUE";
      break;
    }
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    fprintf(stderr, "Trying to get some variables.\n\
Some pointers may be invalid and cause the dump to abort...\n");
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    my_safe_print_str("thd->query", thd->query, 1024);
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    fprintf(stderr, "thd->thread_id=%lu\n", (ulong) thd->thread_id);
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    fprintf(stderr, "thd->killed=%s\n", kreason);
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  }
  fprintf(stderr, "\
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The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains\n\
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information that should help you find out what is causing the crash.\n");
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  fflush(stderr);
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#endif /* HAVE_STACKTRACE */

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#ifdef HAVE_INITGROUPS
  if (calling_initgroups)
    fprintf(stderr, "\n\
This crash occured while the server was calling initgroups(). This is\n\
often due to the use of a mysqld that is statically linked against glibc\n\
and configured to use LDAP in /etc/nsswitch.conf. You will need to either\n\
upgrade to a version of glibc that does not have this problem (2.3.4 or\n\
later when used with nscd), disable LDAP in your nsswitch.conf, or use a\n\
mysqld that is not statically linked.\n");
#endif

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#ifdef HAVE_NPTL
  if (thd_lib_detected == THD_LIB_LT && !getenv("LD_ASSUME_KERNEL"))
    fprintf(stderr,"\n\
You are running a statically-linked LinuxThreads binary on an NPTL system.\n\
This can result in crashes on some distributions due to LT/NPTL conflicts.\n\
You should either build a dynamically-linked binary, or force LinuxThreads\n\
to be used with the LD_ASSUME_KERNEL environment variable. Please consult\n\
the documentation for your distribution on how to do that.\n");
#endif
  
2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551
  if (locked_in_memory)
  {
    fprintf(stderr, "\n\
The \"--memlock\" argument, which was enabled, uses system calls that are\n\
unreliable and unstable on some operating systems and operating-system\n\
versions (notably, some versions of Linux).  This crash could be due to use\n\
of those buggy OS calls.  You should consider whether you really need the\n\
\"--memlock\" parameter and/or consult the OS distributer about \"mlockall\"\n\
bugs.\n");
  }

2552
#ifdef HAVE_WRITE_CORE
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  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    fprintf(stderr, "Writing a core file\n");
    fflush(stderr);
2557
    my_write_core(sig);
2558
  }
2559 2560 2561 2562
#endif

#ifndef __WIN__
  /* On Windows, do not terminate, but pass control to exception filter */
2563
  exit(1);
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#endif
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}

2567
#if !defined(__WIN__) && !defined(__NETWARE__)
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#ifndef SA_RESETHAND
#define SA_RESETHAND 0
#endif
#ifndef SA_NODEFER
#define SA_NODEFER 0
#endif
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#ifndef EMBEDDED_LIBRARY

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static void init_signals(void)
{
  sigset_t set;
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  struct sigaction sa;
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  DBUG_ENTER("init_signals");

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  my_sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called!
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  if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
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  {
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    sa.sa_flags = SA_RESETHAND | SA_NODEFER;
    sigemptyset(&sa.sa_mask);
    sigprocmask(SIG_SETMASK,&sa.sa_mask,NULL);

2591
#ifdef HAVE_STACKTRACE
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    my_init_stacktrace();
2593
#endif
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#if defined(__amiga__)
    sa.sa_handler=(void(*)())handle_segfault;
#else
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    sa.sa_handler=handle_segfault;
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#endif
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    sigaction(SIGSEGV, &sa, NULL);
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    sigaction(SIGABRT, &sa, NULL);
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#ifdef SIGBUS
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    sigaction(SIGBUS, &sa, NULL);
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#endif
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    sigaction(SIGILL, &sa, NULL);
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    sigaction(SIGFPE, &sa, NULL);
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  }
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#ifdef HAVE_GETRLIMIT
  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    /* Change limits so that we will get a core file */
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    STRUCT_RLIMIT rl;
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    rl.rlim_cur = rl.rlim_max = RLIM_INFINITY;
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    if (setrlimit(RLIMIT_CORE, &rl) && global_system_variables.log_warnings)
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      sql_print_warning("setrlimit could not change the size of core files to 'infinity';  We may not be able to generate a core file on signals");
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  }
#endif
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  (void) sigemptyset(&set);
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  my_sigset(SIGPIPE,SIG_IGN);
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  sigaddset(&set,SIGPIPE);
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#ifndef IGNORE_SIGHUP_SIGQUIT
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  sigaddset(&set,SIGQUIT);
  sigaddset(&set,SIGHUP);
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#endif
  sigaddset(&set,SIGTERM);
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  /* Fix signals if blocked by parents (can happen on Mac OS X) */
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  sigemptyset(&sa.sa_mask);
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  sa.sa_flags = 0;
  sa.sa_handler = print_signal_warning;
  sigaction(SIGTERM, &sa, (struct sigaction*) 0);
  sa.sa_flags = 0;
  sa.sa_handler = print_signal_warning;
  sigaction(SIGHUP, &sa, (struct sigaction*) 0);
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#ifdef SIGTSTP
  sigaddset(&set,SIGTSTP);
#endif
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  if (thd_lib_detected != THD_LIB_LT)
    sigaddset(&set,THR_SERVER_ALARM);
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  if (test_flags & TEST_SIGINT)
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  {
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    my_sigset(thr_kill_signal, end_thread_signal);
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    // May be SIGINT
    sigdelset(&set, thr_kill_signal);
  }
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  else
    sigaddset(&set,SIGINT);
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  sigprocmask(SIG_SETMASK,&set,NULL);
  pthread_sigmask(SIG_SETMASK,&set,NULL);
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  DBUG_VOID_RETURN;
}


static void start_signal_handler(void)
{
  int error;
  pthread_attr_t thr_attr;
  DBUG_ENTER("start_signal_handler");
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  (void) pthread_attr_init(&thr_attr);
#if !defined(HAVE_DEC_3_2_THREADS)
  pthread_attr_setscope(&thr_attr,PTHREAD_SCOPE_SYSTEM);
  (void) pthread_attr_setdetachstate(&thr_attr,PTHREAD_CREATE_DETACHED);
  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_attr_setprio(&thr_attr,INTERRUPT_PRIOR);
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#if defined(__ia64__) || defined(__ia64)
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  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
2671
  pthread_attr_setstacksize(&thr_attr,my_thread_stack_size*2);
2672
#else
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  pthread_attr_setstacksize(&thr_attr,my_thread_stack_size);
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#endif
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#endif

  (void) pthread_mutex_lock(&LOCK_thread_count);
  if ((error=pthread_create(&signal_thread,&thr_attr,signal_hand,0)))
  {
    sql_print_error("Can't create interrupt-thread (error %d, errno: %d)",
		    error,errno);
    exit(1);
  }
  (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
  pthread_mutex_unlock(&LOCK_thread_count);

  (void) pthread_attr_destroy(&thr_attr);
  DBUG_VOID_RETURN;
}


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/** This threads handles all signals and alarms. */
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/* ARGSUSED */
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pthread_handler_t signal_hand(void *arg __attribute__((unused)))
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{
  sigset_t set;
  int sig;
  my_thread_init();				// Init new thread
  DBUG_ENTER("signal_hand");
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  signal_thread_in_use= 1;

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  /*
    Setup alarm handler
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    This should actually be '+ max_number_of_slaves' instead of +10,
    but the +10 should be quite safe.
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  */
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  init_thr_alarm(thread_scheduler.max_threads +
2708
		 global_system_variables.max_insert_delayed_threads + 10);
2709
  if (thd_lib_detected != THD_LIB_LT && (test_flags & TEST_SIGINT))
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  {
    (void) sigemptyset(&set);			// Setup up SIGINT for debug
    (void) sigaddset(&set,SIGINT);		// For debugging
    (void) pthread_sigmask(SIG_UNBLOCK,&set,NULL);
  }
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  (void) sigemptyset(&set);			// Setup up SIGINT for debug
#ifdef USE_ONE_SIGNAL_HAND
  (void) sigaddset(&set,THR_SERVER_ALARM);	// For alarms
#endif
2719
#ifndef IGNORE_SIGHUP_SIGQUIT
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  (void) sigaddset(&set,SIGQUIT);
  (void) sigaddset(&set,SIGHUP);
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#endif
  (void) sigaddset(&set,SIGTERM);
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  (void) sigaddset(&set,SIGTSTP);

  /* Save pid to this process (or thread on Linux) */
2727
  if (!opt_bootstrap)
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    create_pid_file();

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#ifdef HAVE_STACK_TRACE_ON_SEGV
  if (opt_do_pstack)
  {
    sprintf(pstack_file_name,"mysqld-%lu-%%d-%%d.backtrace", (ulong)getpid());
    pstack_install_segv_action(pstack_file_name);
  }
#endif /* HAVE_STACK_TRACE_ON_SEGV */
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  /*
    signal to start_signal_handler that we are ready
    This works by waiting for start_signal_handler to free mutex,
    after which we signal it that we are ready.
    At this pointer there is no other threads running, so there
    should not be any other pthread_cond_signal() calls.
  */
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  (void) pthread_mutex_lock(&LOCK_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
2747
  (void) pthread_cond_broadcast(&COND_thread_count);
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2749
  (void) pthread_sigmask(SIG_BLOCK,&set,NULL);
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  for (;;)
  {
    int error;					// Used when debugging
    if (shutdown_in_progress && !abort_loop)
    {
2755
      sig= SIGTERM;
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      error=0;
    }
    else
      while ((error=my_sigwait(&set,&sig)) == EINTR) ;
    if (cleanup_done)
2761
    {
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      DBUG_PRINT("quit",("signal_handler: calling my_thread_end()"));
2763
      my_thread_end();
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      signal_thread_in_use= 0;
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      pthread_exit(0);				// Safety
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    }
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    switch (sig) {
    case SIGTERM:
    case SIGQUIT:
    case SIGKILL:
#ifdef EXTRA_DEBUG
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      sql_print_information("Got signal %d to shutdown mysqld",sig);
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#endif
2774
      /* switch to the old log message processing */
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      logger.set_handlers(LOG_FILE, opt_slow_log ? LOG_FILE:LOG_NONE,
                          opt_log ? LOG_FILE:LOG_NONE);
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      DBUG_PRINT("info",("Got signal: %d  abort_loop: %d",sig,abort_loop));
      if (!abort_loop)
      {
	abort_loop=1;				// mark abort for threads
#ifdef USE_ONE_SIGNAL_HAND
	pthread_t tmp;
	if (!(opt_specialflag & SPECIAL_NO_PRIOR))
	  my_pthread_attr_setprio(&connection_attrib,INTERRUPT_PRIOR);
	if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
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			   (void*) &sig))
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	  sql_print_error("Can't create thread to kill server");
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#else
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	kill_server((void*) sig);	// MIT THREAD has a alarm thread
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#endif
      }
      break;
    case SIGHUP:
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      if (!abort_loop)
      {
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        bool not_used;
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	mysql_print_status();		// Print some debug info
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	reload_acl_and_cache((THD*) 0,
			     (REFRESH_LOG | REFRESH_TABLES | REFRESH_FAST |
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			      REFRESH_GRANT |
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			      REFRESH_THREADS | REFRESH_HOSTS),
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			     (TABLE_LIST*) 0, &not_used); // Flush logs
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      }
2804
      /* reenable logs after the options were reloaded */
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      if (log_output_options & LOG_NONE)
      {
        logger.set_handlers(LOG_FILE,
                            opt_slow_log ? LOG_TABLE : LOG_NONE,
                            opt_log ? LOG_TABLE : LOG_NONE);
      }
      else
      {
        logger.set_handlers(LOG_FILE,
                            opt_slow_log ? log_output_options : LOG_NONE,
                            opt_log ? log_output_options : LOG_NONE);
      }
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      break;
#ifdef USE_ONE_SIGNAL_HAND
    case THR_SERVER_ALARM:
      process_alarm(sig);			// Trigger alarms.
      break;
#endif
    default:
#ifdef EXTRA_DEBUG
2825
      sql_print_warning("Got signal: %d  error: %d",sig,error); /* purecov: tested */
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#endif
      break;					/* purecov: tested */
    }
  }
  return(0);					/* purecov: deadcode */
}

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static void check_data_home(const char *path)
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{}
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2836
#endif /*!EMBEDDED_LIBRARY*/
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#endif	/* __WIN__*/


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/**
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  All global error messages are sent here where the first one is stored
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  for the client.
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*/
/* ARGSUSED */
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extern "C" int my_message_sql(uint error, const char *str, myf MyFlags);

int my_message_sql(uint error, const char *str, myf MyFlags)
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{
2849
  THD *thd;
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  DBUG_ENTER("my_message_sql");
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  DBUG_PRINT("error", ("error: %u  message: '%s'", error, str));
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  DBUG_ASSERT(str != NULL);
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  /*
2855 2856 2857 2858 2859 2860
    An error should have a valid error number (!= 0), so it can be caught
    in stored procedures by SQL exception handlers.
    Calling my_error() with error == 0 is a bug.
    Remaining known places to fix:
    - storage/myisam/mi_create.c, my_printf_error()
    TODO:
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    DBUG_ASSERT(error != 0);
  */
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  if (error == 0)
  {
    /* At least, prevent new abuse ... */
    DBUG_ASSERT(strncmp(str, "MyISAM table", 12) == 0);
    error= ER_UNKNOWN_ERROR;
  }

2871
  if ((thd= current_thd))
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  {
2873 2874 2875 2876
    /*
      TODO: There are two exceptions mechanism (THD and sp_rcontext),
      this could be improved by having a common stack of handlers.
    */
2877
    if (thd->handle_error(error, str,
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                          MYSQL_ERROR::WARN_LEVEL_ERROR))
      DBUG_RETURN(0);

2881
    thd->is_slave_error=  1; // needed to catch query errors during replication
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2882

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    /*
2884
      thd->lex->current_select == 0 if lex structure is not inited
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      (not query command (COM_QUERY))
    */
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    if (thd->lex->current_select &&
	thd->lex->current_select->no_error && !thd->is_fatal_error)
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    {
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      DBUG_PRINT("error",
                 ("Error converted to warning: current_select: no_error %d  "
                  "fatal_error: %d",
                  (thd->lex->current_select ?
                   thd->lex->current_select->no_error : 0),
                  (int) thd->is_fatal_error));
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    }
    else
    {
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      if (! thd->main_da.is_error())            // Return only first message
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      {
2901
        thd->main_da.set_error_status(thd, error, str);
2902
      }
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      query_cache_abort(&thd->net);
    }
    /*
      If a continue handler is found, the error message will be cleared
      by the stored procedures code.
    */
    if (thd->spcont &&
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        ! (MyFlags & ME_NO_SP_HANDLER) &&
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        thd->spcont->handle_error(error, MYSQL_ERROR::WARN_LEVEL_ERROR, thd))
    {
      /*
        Do not push any warnings, a handled error must be completely
        silenced.
      */
      DBUG_RETURN(0);
    }

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    if (!thd->no_warnings_for_error &&
        !(MyFlags & ME_NO_WARNING_FOR_ERROR))
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    {
      /*
        Suppress infinite recursion if there a memory allocation error
        inside push_warning.
      */
      thd->no_warnings_for_error= TRUE;
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, error, str);
      thd->no_warnings_for_error= FALSE;
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    }
  }
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  if (!thd || MyFlags & ME_NOREFRESH)
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    sql_print_error("%s: %s",my_progname,str); /* purecov: inspected */
  DBUG_RETURN(0);
}

2937

2938
#ifndef EMBEDDED_LIBRARY
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extern "C" void *my_str_malloc_mysqld(size_t size);
extern "C" void my_str_free_mysqld(void *ptr);

void *my_str_malloc_mysqld(size_t size)
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{
  return my_malloc(size, MYF(MY_FAE));
}


2948
void my_str_free_mysqld(void *ptr)
2949
{
2950
  my_free((uchar*)ptr, MYF(MY_FAE));
2951
}
2952
#endif /* EMBEDDED_LIBRARY */
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#ifdef __WIN__

2957
pthread_handler_t handle_shutdown(void *arg)
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{
  MSG msg;
  my_thread_init();

  /* this call should create the message queue for this thread */
  PeekMessage(&msg, NULL, 1, 65534,PM_NOREMOVE);
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#if !defined(EMBEDDED_LIBRARY)
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  if (WaitForSingleObject(hEventShutdown,INFINITE)==WAIT_OBJECT_0)
2966
#endif /* EMBEDDED_LIBRARY */
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     kill_server(MYSQL_KILL_SIGNAL);
  return 0;
}
#endif

2972
const char *load_default_groups[]= {
2973
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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"mysql_cluster",
#endif
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"mysqld","server", MYSQL_BASE_VERSION, 0, 0};

2978
#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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static const int load_default_groups_sz=
sizeof(load_default_groups)/sizeof(load_default_groups[0]);
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#endif
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/**
  Initialize one of the global date/time format variables.
2986

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  @param format_type		What kind of format should be supported
  @param var_ptr		Pointer to variable that should be updated
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  @note
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    The default value is taken from either opt_date_time_formats[] or
    the ISO format (ANSI SQL)

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  @retval
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    0 ok
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  @retval
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    1 error
*/

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static bool init_global_datetime_format(timestamp_type format_type,
                                        DATE_TIME_FORMAT **var_ptr)
3002
{
3003 3004
  /* Get command line option */
  const char *str= opt_date_time_formats[format_type];
3005

3006
  if (!str)					// No specified format
3007
  {
3008 3009 3010 3011 3012 3013 3014
    str= get_date_time_format_str(&known_date_time_formats[ISO_FORMAT],
				  format_type);
    /*
      Set the "command line" option to point to the generated string so
      that we can set global formats back to default
    */
    opt_date_time_formats[format_type]= str;
3015
  }
3016
  if (!(*var_ptr= date_time_format_make(format_type, str, strlen(str))))
3017
  {
3018 3019
    fprintf(stderr, "Wrong date/time format specifier: %s\n", str);
    return 1;
3020
  }
3021
  return 0;
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}

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SHOW_VAR com_status_vars[]= {
  {"admin_commands",       (char*) offsetof(STATUS_VAR, com_other), SHOW_LONG_STATUS},
  {"assign_to_keycache",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ASSIGN_TO_KEYCACHE]), SHOW_LONG_STATUS},
  {"alter_db",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB]), SHOW_LONG_STATUS},
  {"alter_db_upgrade",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB_UPGRADE]), SHOW_LONG_STATUS},
  {"alter_event",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_EVENT]), SHOW_LONG_STATUS},
  {"alter_function",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_FUNCTION]), SHOW_LONG_STATUS},
  {"alter_procedure",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_PROCEDURE]), SHOW_LONG_STATUS},
  {"alter_server",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_SERVER]), SHOW_LONG_STATUS},
  {"alter_table",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLE]), SHOW_LONG_STATUS},
  {"alter_tablespace",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLESPACE]), SHOW_LONG_STATUS},
  {"analyze",              (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ANALYZE]), SHOW_LONG_STATUS},
  {"backup_table",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BACKUP_TABLE]), SHOW_LONG_STATUS},
  {"begin",                (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BEGIN]), SHOW_LONG_STATUS},
  {"binlog",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BINLOG_BASE64_EVENT]), SHOW_LONG_STATUS},
  {"call_procedure",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CALL]), SHOW_LONG_STATUS},
  {"change_db",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_DB]), SHOW_LONG_STATUS},
  {"change_master",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_MASTER]), SHOW_LONG_STATUS},
  {"check",                (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECK]), SHOW_LONG_STATUS},
  {"checksum",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECKSUM]), SHOW_LONG_STATUS},
  {"commit",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_COMMIT]), SHOW_LONG_STATUS},
  {"create_db",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_DB]), SHOW_LONG_STATUS},
  {"create_event",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_EVENT]), SHOW_LONG_STATUS},
  {"create_function",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_SPFUNCTION]), SHOW_LONG_STATUS},
  {"create_index",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_INDEX]), SHOW_LONG_STATUS},
  {"create_procedure",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_PROCEDURE]), SHOW_LONG_STATUS},
  {"create_server",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_SERVER]), SHOW_LONG_STATUS},
  {"create_table",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TABLE]), SHOW_LONG_STATUS},
  {"create_trigger",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TRIGGER]), SHOW_LONG_STATUS},
  {"create_udf",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_FUNCTION]), SHOW_LONG_STATUS},
  {"create_user",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_USER]), SHOW_LONG_STATUS},
  {"create_view",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_VIEW]), SHOW_LONG_STATUS},
  {"dealloc_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DEALLOCATE_PREPARE]), SHOW_LONG_STATUS},
  {"delete",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE]), SHOW_LONG_STATUS},
  {"delete_multi",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE_MULTI]), SHOW_LONG_STATUS},
  {"do",                   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DO]), SHOW_LONG_STATUS},
  {"drop_db",              (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_DB]), SHOW_LONG_STATUS},
  {"drop_event",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_EVENT]), SHOW_LONG_STATUS},
  {"drop_function",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_FUNCTION]), SHOW_LONG_STATUS},
  {"drop_index",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_INDEX]), SHOW_LONG_STATUS},
  {"drop_procedure",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_PROCEDURE]), SHOW_LONG_STATUS},
  {"drop_server",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_SERVER]), SHOW_LONG_STATUS},
  {"drop_table",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_TABLE]), SHOW_LONG_STATUS},
  {"drop_trigger",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_TRIGGER]), SHOW_LONG_STATUS},
  {"drop_user",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_USER]), SHOW_LONG_STATUS},
  {"drop_view",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_VIEW]), SHOW_LONG_STATUS},
  {"empty_query",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EMPTY_QUERY]), SHOW_LONG_STATUS},
  {"execute_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EXECUTE]), SHOW_LONG_STATUS},
  {"flush",                (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_FLUSH]), SHOW_LONG_STATUS},
  {"grant",                (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_GRANT]), SHOW_LONG_STATUS},
  {"ha_close",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_CLOSE]), SHOW_LONG_STATUS},
  {"ha_open",              (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_OPEN]), SHOW_LONG_STATUS},
  {"ha_read",              (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_READ]), SHOW_LONG_STATUS},
  {"help",                 (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HELP]), SHOW_LONG_STATUS},
  {"insert",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT]), SHOW_LONG_STATUS},
  {"insert_select",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT_SELECT]), SHOW_LONG_STATUS},
  {"install_plugin",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSTALL_PLUGIN]), SHOW_LONG_STATUS},
  {"kill",                 (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_KILL]), SHOW_LONG_STATUS},
  {"load",                 (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD]), SHOW_LONG_STATUS},
  {"load_master_data",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_DATA]), SHOW_LONG_STATUS},
  {"load_master_table",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_TABLE]), SHOW_LONG_STATUS},
  {"lock_tables",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOCK_TABLES]), SHOW_LONG_STATUS},
  {"optimize",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_OPTIMIZE]), SHOW_LONG_STATUS},
  {"preload_keys",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PRELOAD_KEYS]), SHOW_LONG_STATUS},
  {"prepare_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PREPARE]), SHOW_LONG_STATUS},
  {"purge",                (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE]), SHOW_LONG_STATUS},
  {"purge_before_date",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE_BEFORE]), SHOW_LONG_STATUS},
  {"release_savepoint",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RELEASE_SAVEPOINT]), SHOW_LONG_STATUS},
  {"rename_table",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RENAME_TABLE]), SHOW_LONG_STATUS},
  {"rename_user",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RENAME_USER]), SHOW_LONG_STATUS},
  {"repair",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPAIR]), SHOW_LONG_STATUS},
  {"replace",              (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE]), SHOW_LONG_STATUS},
  {"replace_select",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE_SELECT]), SHOW_LONG_STATUS},
  {"reset",                (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESET]), SHOW_LONG_STATUS},
  {"restore_table",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESTORE_TABLE]), SHOW_LONG_STATUS},
  {"revoke",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE]), SHOW_LONG_STATUS},
  {"revoke_all",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE_ALL]), SHOW_LONG_STATUS},
  {"rollback",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ROLLBACK]), SHOW_LONG_STATUS},
  {"rollback_to_savepoint",(char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ROLLBACK_TO_SAVEPOINT]), SHOW_LONG_STATUS},
  {"savepoint",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SAVEPOINT]), SHOW_LONG_STATUS},
  {"select",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SELECT]), SHOW_LONG_STATUS},
  {"set_option",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SET_OPTION]), SHOW_LONG_STATUS},
  {"show_authors",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_AUTHORS]), SHOW_LONG_STATUS},
  {"show_binlog_events",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOG_EVENTS]), SHOW_LONG_STATUS},
  {"show_binlogs",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOGS]), SHOW_LONG_STATUS},
  {"show_charsets",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CHARSETS]), SHOW_LONG_STATUS},
  {"show_collations",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLLATIONS]), SHOW_LONG_STATUS},
  {"show_column_types",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLUMN_TYPES]), SHOW_LONG_STATUS},
  {"show_contributors",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CONTRIBUTORS]), SHOW_LONG_STATUS},
  {"show_create_db",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_DB]), SHOW_LONG_STATUS},
  {"show_create_event",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_EVENT]), SHOW_LONG_STATUS},
  {"show_create_func",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_FUNC]), SHOW_LONG_STATUS},
  {"show_create_proc",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_PROC]), SHOW_LONG_STATUS},
  {"show_create_table",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE]), SHOW_LONG_STATUS},
  {"show_create_trigger",  (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_TRIGGER]), SHOW_LONG_STATUS},
  {"show_databases",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_DATABASES]), SHOW_LONG_STATUS},
  {"show_engine_logs",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_LOGS]), SHOW_LONG_STATUS},
  {"show_engine_mutex",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_MUTEX]), SHOW_LONG_STATUS},
  {"show_engine_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_STATUS]), SHOW_LONG_STATUS},
  {"show_events",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_EVENTS]), SHOW_LONG_STATUS},
  {"show_errors",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ERRORS]), SHOW_LONG_STATUS},
  {"show_fields",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_FIELDS]), SHOW_LONG_STATUS},
#ifndef DBUG_OFF
  {"show_function_code",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_FUNC_CODE]), SHOW_LONG_STATUS},
#endif
  {"show_function_status", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS_FUNC]), SHOW_LONG_STATUS},
  {"show_grants",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_GRANTS]), SHOW_LONG_STATUS},
  {"show_keys",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_KEYS]), SHOW_LONG_STATUS},
  {"show_master_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_MASTER_STAT]), SHOW_LONG_STATUS},
  {"show_new_master",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_NEW_MASTER]), SHOW_LONG_STATUS},
  {"show_open_tables",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_OPEN_TABLES]), SHOW_LONG_STATUS},
  {"show_plugins",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PLUGINS]), SHOW_LONG_STATUS},
  {"show_privileges",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PRIVILEGES]), SHOW_LONG_STATUS},
#ifndef DBUG_OFF
  {"show_procedure_code",  (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROC_CODE]), SHOW_LONG_STATUS},
#endif
  {"show_procedure_status",(char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS_PROC]), SHOW_LONG_STATUS},
  {"show_processlist",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROCESSLIST]), SHOW_LONG_STATUS},
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  {"show_profile",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROFILE]), SHOW_LONG_STATUS},
  {"show_profiles",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROFILES]), SHOW_LONG_STATUS},
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  {"show_relaylog_events", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_RELAYLOG_EVENTS]), SHOW_LONG_STATUS},
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  {"show_slave_hosts",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_HOSTS]), SHOW_LONG_STATUS},
  {"show_slave_status",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_STAT]), SHOW_LONG_STATUS},
  {"show_status",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS]), SHOW_LONG_STATUS},
  {"show_storage_engines", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STORAGE_ENGINES]), SHOW_LONG_STATUS},
  {"show_table_status",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLE_STATUS]), SHOW_LONG_STATUS},
  {"show_tables",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLES]), SHOW_LONG_STATUS},
  {"show_triggers",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TRIGGERS]), SHOW_LONG_STATUS},
  {"show_variables",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_VARIABLES]), SHOW_LONG_STATUS},
  {"show_warnings",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_WARNS]), SHOW_LONG_STATUS},
  {"slave_start",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_START]), SHOW_LONG_STATUS},
  {"slave_stop",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_STOP]), SHOW_LONG_STATUS},
  {"stmt_close",           (char*) offsetof(STATUS_VAR, com_stmt_close), SHOW_LONG_STATUS},
  {"stmt_execute",         (char*) offsetof(STATUS_VAR, com_stmt_execute), SHOW_LONG_STATUS},
  {"stmt_fetch",           (char*) offsetof(STATUS_VAR, com_stmt_fetch), SHOW_LONG_STATUS},
  {"stmt_prepare",         (char*) offsetof(STATUS_VAR, com_stmt_prepare), SHOW_LONG_STATUS},
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  {"stmt_reprepare",       (char*) offsetof(STATUS_VAR, com_stmt_reprepare), SHOW_LONG_STATUS},
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  {"stmt_reset",           (char*) offsetof(STATUS_VAR, com_stmt_reset), SHOW_LONG_STATUS},
  {"stmt_send_long_data",  (char*) offsetof(STATUS_VAR, com_stmt_send_long_data), SHOW_LONG_STATUS},
  {"truncate",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_TRUNCATE]), SHOW_LONG_STATUS},
  {"uninstall_plugin",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UNINSTALL_PLUGIN]), SHOW_LONG_STATUS},
  {"unlock_tables",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UNLOCK_TABLES]), SHOW_LONG_STATUS},
  {"update",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE]), SHOW_LONG_STATUS},
  {"update_multi",         (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE_MULTI]), SHOW_LONG_STATUS},
  {"xa_commit",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_COMMIT]),SHOW_LONG_STATUS},
  {"xa_end",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_END]),SHOW_LONG_STATUS},
  {"xa_prepare",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_PREPARE]),SHOW_LONG_STATUS},
  {"xa_recover",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_RECOVER]),SHOW_LONG_STATUS},
  {"xa_rollback",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_ROLLBACK]),SHOW_LONG_STATUS},
  {"xa_start",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_START]),SHOW_LONG_STATUS},
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  {NullS, NullS, SHOW_LONG}
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};
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static int init_common_variables(const char *conf_file_name, int argc,
				 char **argv, const char **groups)
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{
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  char buff[FN_REFLEN], *s;
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  umask(((~my_umask) & 0666));
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  my_decimal_set_zero(&decimal_zero); // set decimal_zero constant;
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  tzset();			// Set tzname

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  max_system_variables.pseudo_thread_id= (ulong)~0;
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  server_start_time= flush_status_time= my_time(0);
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  rpl_filter= new Rpl_filter;
  binlog_filter= new Rpl_filter;
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  if (!rpl_filter || !binlog_filter)
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  {
    sql_perror("Could not allocate replication and binlog filters");
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    return 1;
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  }

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  if (init_thread_environment() ||
      mysql_init_variables())
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    return 1;
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#ifdef HAVE_TZNAME
  {
    struct tm tm_tmp;
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    localtime_r(&server_start_time,&tm_tmp);
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    strmake(system_time_zone, tzname[tm_tmp.tm_isdst != 0 ? 1 : 0],
            sizeof(system_time_zone)-1);

 }
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#endif
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  /*
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    We set SYSTEM time zone as reasonable default and
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    also for failure of my_tz_init() and bootstrap mode.
    If user explicitly set time zone with --default-time-zone
    option we will change this value in my_tz_init().
  */
  global_system_variables.time_zone= my_tz_SYSTEM;
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  /*
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    Init mutexes for the global MYSQL_BIN_LOG objects.
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    As safe_mutex depends on what MY_INIT() does, we can't init the mutexes of
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    global MYSQL_BIN_LOGs in their constructors, because then they would be
    inited before MY_INIT(). So we do it here.
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  */
  mysql_bin_log.init_pthread_objects();
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  if (gethostname(glob_hostname,sizeof(glob_hostname)) < 0)
  {
    strmake(glob_hostname, STRING_WITH_LEN("localhost"));
    sql_print_warning("gethostname failed, using '%s' as hostname",
                      glob_hostname);
    strmake(pidfile_name, STRING_WITH_LEN("mysql"));
  }
  else
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  strmake(pidfile_name, glob_hostname, sizeof(pidfile_name)-5);
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  strmov(fn_ext(pidfile_name),".pid");		// Add proper extension
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  /*
    Add server status variables to the dynamic list of
    status variables that is shown by SHOW STATUS.
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    Later, in plugin_init, and mysql_install_plugin
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    new entries could be added to that list.
  */
  if (add_status_vars(status_vars))
    return 1; // an error was already reported

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#ifndef DBUG_OFF
  /*
    We have few debug-only commands in com_status_vars, only visible in debug
    builds. for simplicity we enable the assert only in debug builds

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    There are 8 Com_ variables which don't have corresponding SQLCOM_ values:
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    (TODO strictly speaking they shouldn't be here, should not have Com_ prefix
    that is. Perhaps Stmt_ ? Comstmt_ ? Prepstmt_ ?)

      Com_admin_commands       => com_other
      Com_stmt_close           => com_stmt_close
      Com_stmt_execute         => com_stmt_execute
      Com_stmt_fetch           => com_stmt_fetch
      Com_stmt_prepare         => com_stmt_prepare
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      Com_stmt_reprepare       => com_stmt_reprepare
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      Com_stmt_reset           => com_stmt_reset
      Com_stmt_send_long_data  => com_stmt_send_long_data

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    With this correction the number of Com_ variables (number of elements in
    the array, excluding the last element - terminator) must match the number
    of SQLCOM_ constants.
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  */
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  compile_time_assert(sizeof(com_status_vars)/sizeof(com_status_vars[0]) - 1 ==
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                     SQLCOM_END + 8);
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#endif

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  orig_argc=argc;
  orig_argv=argv;
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  load_defaults(conf_file_name, groups, &argc, &argv);
  defaults_argv=argv;
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  defaults_argc=argc;
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  if (get_options(&defaults_argc, defaults_argv))
    return 1;
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  set_server_version();

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  DBUG_PRINT("info",("%s  Ver %s for %s on %s\n",my_progname,
		     server_version, SYSTEM_TYPE,MACHINE_TYPE));

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#ifdef HAVE_LARGE_PAGES
  /* Initialize large page size */
  if (opt_large_pages && (opt_large_page_size= my_get_large_page_size()))
  {
      my_use_large_pages= 1;
      my_large_page_size= opt_large_page_size;
  }
#endif /* HAVE_LARGE_PAGES */

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  /* connections and databases needs lots of files */
  {
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    uint files, wanted_files, max_open_files;
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    /* MyISAM requires two file handles per table. */
    wanted_files= 10+max_connections+table_cache_size*2;
    /*
      We are trying to allocate no less than max_connections*5 file
      handles (i.e. we are trying to set the limit so that they will
      be available).  In addition, we allocate no less than how much
      was already allocated.  However below we report a warning and
      recompute values only if we got less file handles than were
      explicitly requested.  No warning and re-computation occur if we
      can't get max_connections*5 but still got no less than was
      requested (value of wanted_files).
    */
    max_open_files= max(max(wanted_files, max_connections*5),
                        open_files_limit);
    files= my_set_max_open_files(max_open_files);
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    if (files < wanted_files)
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    {
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      if (!open_files_limit)
      {
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        /*
          If we have requested too much file handles than we bring
          max_connections in supported bounds.
        */
        max_connections= (ulong) min(files-10-TABLE_OPEN_CACHE_MIN*2,
                                     max_connections);
        /*
          Decrease table_cache_size according to max_connections, but
          not below TABLE_OPEN_CACHE_MIN.  Outer min() ensures that we
          never increase table_cache_size automatically (that could
          happen if max_connections is decreased above).
        */
        table_cache_size= (ulong) min(max((files-10-max_connections)/2,
                                          TABLE_OPEN_CACHE_MIN),
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                                      table_cache_size);
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	DBUG_PRINT("warning",
		   ("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
		    files, max_connections, table_cache_size));
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	if (global_system_variables.log_warnings)
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	  sql_print_warning("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
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			files, max_connections, table_cache_size);
      }
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      else if (global_system_variables.log_warnings)
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	sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, wanted_files);
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    }
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    open_files_limit= files;
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  }
  unireg_init(opt_specialflag); /* Set up extern variabels */
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  if (init_errmessage())	/* Read error messages from file */
    return 1;
3345
  init_client_errs();
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  lex_init();
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  if (item_create_init())
    return 1;
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  item_init();
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  if (set_var_init())
    return 1;
#ifdef HAVE_REPLICATION
  if (init_replication_sys_vars())
    return 1;
#endif
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  mysys_uses_curses=0;
#ifdef USE_REGEX
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  my_regex_init(&my_charset_latin1);
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#endif
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  /*
    Process a comma-separated character set list and choose
    the first available character set. This is mostly for
    test purposes, to be able to start "mysqld" even if
    the requested character set is not available (see bug#18743).
  */
  for (;;)
  {
    char *next_character_set_name= strchr(default_character_set_name, ',');
    if (next_character_set_name)
      *next_character_set_name++= '\0';
    if (!(default_charset_info=
          get_charset_by_csname(default_character_set_name,
                                MY_CS_PRIMARY, MYF(MY_WME))))
    {
      if (next_character_set_name)
      {
        default_character_set_name= next_character_set_name;
        default_collation_name= 0;          // Ignore collation
      }
      else
        return 1;                           // Eof of the list
    }
    else
      break;
  }

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  if (default_collation_name)
  {
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    CHARSET_INFO *default_collation;
    default_collation= get_charset_by_name(default_collation_name, MYF(0));
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    if (!default_collation)
    {
      sql_print_error(ER(ER_UNKNOWN_COLLATION), default_collation_name);
      return 1;
    }
    if (!my_charset_same(default_charset_info, default_collation))
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    {
      sql_print_error(ER(ER_COLLATION_CHARSET_MISMATCH),
		      default_collation_name,
		      default_charset_info->csname);
      return 1;
    }
    default_charset_info= default_collation;
  }
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  /* Set collactions that depends on the default collation */
  global_system_variables.collation_server=	 default_charset_info;
  global_system_variables.collation_database=	 default_charset_info;
  global_system_variables.collation_connection=  default_charset_info;
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  global_system_variables.character_set_results= default_charset_info;
3410
  global_system_variables.character_set_client= default_charset_info;
3411

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  if (!(character_set_filesystem= 
        get_charset_by_csname(character_set_filesystem_name,
                              MY_CS_PRIMARY, MYF(MY_WME))))
    return 1;
  global_system_variables.character_set_filesystem= character_set_filesystem;

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  if (!(my_default_lc_time_names=
        my_locale_by_name(lc_time_names_name)))
  {
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    sql_print_error("Unknown locale: '%s'", lc_time_names_name);
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    return 1;
  }
  global_system_variables.lc_time_names= my_default_lc_time_names;
  
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  sys_init_connect.value_length= 0;
  if ((sys_init_connect.value= opt_init_connect))
    sys_init_connect.value_length= strlen(opt_init_connect);
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  else
    sys_init_connect.value=my_strdup("",MYF(0));
3431
  sys_init_connect.is_os_charset= TRUE;
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  sys_init_slave.value_length= 0;
  if ((sys_init_slave.value= opt_init_slave))
    sys_init_slave.value_length= strlen(opt_init_slave);
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  else
    sys_init_slave.value=my_strdup("",MYF(0));
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  sys_init_slave.is_os_charset= TRUE;
3439

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  /* check log options and issue warnings if needed */
  if (opt_log && opt_logname && !(log_output_options & LOG_FILE) &&
      !(log_output_options & LOG_NONE))
    sql_print_warning("Although a path was specified for the "
                      "--log option, log tables are used. "
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                      "To enable logging to files use the --log-output option.");
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  if (opt_slow_log && opt_slow_logname && !(log_output_options & LOG_FILE)
      && !(log_output_options & LOG_NONE))
    sql_print_warning("Although a path was specified for the "
3450
                      "--log_slow_queries option, log tables are used. "
3451
                      "To enable logging to files use the --log-output=file option.");
3452

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  s= opt_logname ? opt_logname : make_default_log_name(buff, ".log");
  sys_var_general_log_path.value= my_strdup(s, MYF(0));
  sys_var_general_log_path.value_length= strlen(s);
3456

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  s= opt_slow_logname ? opt_slow_logname : make_default_log_name(buff, "-slow.log");
  sys_var_slow_log_path.value= my_strdup(s, MYF(0));
  sys_var_slow_log_path.value_length= strlen(s);
3460

3461
#if (ENABLE_TEMP_POOL)
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  if (use_temp_pool && bitmap_init(&temp_pool,0,1024,1))
3463
    return 1;
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#else
  use_temp_pool= 0;
#endif

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  if (my_database_names_init())
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    return 1;

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  /*
    Ensure that lower_case_table_names is set on system where we have case
    insensitive names.  If this is not done the users MyISAM tables will
    get corrupted if accesses with names of different case.
  */
  DBUG_PRINT("info", ("lower_case_table_names: %d", lower_case_table_names));
3477 3478
  lower_case_file_system= test_if_case_insensitive(mysql_real_data_home);
  if (!lower_case_table_names && lower_case_file_system == 1)
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  {
    if (lower_case_table_names_used)
    {
      if (global_system_variables.log_warnings)
	sql_print_warning("\
You have forced lower_case_table_names to 0 through a command-line \
option, even though your file system '%s' is case insensitive.  This means \
that you can corrupt a MyISAM table by accessing it with different cases. \
You should consider changing lower_case_table_names to 1 or 2",
			mysql_real_data_home);
    }
    else
    {
      if (global_system_variables.log_warnings)
	sql_print_warning("Setting lower_case_table_names=2 because file system for %s is case insensitive", mysql_real_data_home);
      lower_case_table_names= 2;
    }
  }
  else if (lower_case_table_names == 2 &&
           !(lower_case_file_system=
             (test_if_case_insensitive(mysql_real_data_home) == 1)))
  {
    if (global_system_variables.log_warnings)
      sql_print_warning("lower_case_table_names was set to 2, even though your "
                        "the file system '%s' is case sensitive.  Now setting "
                        "lower_case_table_names to 0 to avoid future problems.",
			mysql_real_data_home);
    lower_case_table_names= 0;
  }
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  else
  {
    lower_case_file_system=
      (test_if_case_insensitive(mysql_real_data_home) == 1);
  }
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  /* Reset table_alias_charset, now that lower_case_table_names is set. */
  table_alias_charset= (lower_case_table_names ?
			files_charset_info :
			&my_charset_bin);

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  return 0;
}
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3522 3523

static int init_thread_environment()
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{
3525
  (void) pthread_mutex_init(&LOCK_mysql_create_db,MY_MUTEX_INIT_SLOW);
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  (void) pthread_mutex_init(&LOCK_lock_db,MY_MUTEX_INIT_SLOW);
3527
  (void) pthread_mutex_init(&LOCK_Acl,MY_MUTEX_INIT_SLOW);
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  (void) pthread_mutex_init(&LOCK_open, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_thread_count,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_mapped_file,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_status,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_error_log,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_insert,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_status,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_create,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_manager,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_crypt,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_bytes_sent,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_bytes_received,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_user_conn, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_active_mi, MY_MUTEX_INIT_FAST);
3542
  (void) pthread_mutex_init(&LOCK_global_system_variables, MY_MUTEX_INIT_FAST);
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  (void) my_rwlock_init(&LOCK_system_variables_hash, NULL);
3544
  (void) pthread_mutex_init(&LOCK_global_read_lock, MY_MUTEX_INIT_FAST);
3545
  (void) pthread_mutex_init(&LOCK_prepared_stmt_count, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_uuid_generator, MY_MUTEX_INIT_FAST);
3547
  (void) pthread_mutex_init(&LOCK_connection_count, MY_MUTEX_INIT_FAST);
3548 3549
#ifdef HAVE_OPENSSL
  (void) pthread_mutex_init(&LOCK_des_key_file,MY_MUTEX_INIT_FAST);
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#ifndef HAVE_YASSL
  openssl_stdlocks= (openssl_lock_t*) OPENSSL_malloc(CRYPTO_num_locks() *
                                                     sizeof(openssl_lock_t));
  for (int i= 0; i < CRYPTO_num_locks(); ++i)
    (void) my_rwlock_init(&openssl_stdlocks[i].lock, NULL); 
  CRYPTO_set_dynlock_create_callback(openssl_dynlock_create);
  CRYPTO_set_dynlock_destroy_callback(openssl_dynlock_destroy);
  CRYPTO_set_dynlock_lock_callback(openssl_lock);
  CRYPTO_set_locking_callback(openssl_lock_function);
  CRYPTO_set_id_callback(openssl_id_function);
#endif
3561
#endif
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  (void) my_rwlock_init(&LOCK_sys_init_connect, NULL);
  (void) my_rwlock_init(&LOCK_sys_init_slave, NULL);
3564
  (void) my_rwlock_init(&LOCK_grant, NULL);
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  (void) pthread_cond_init(&COND_thread_count,NULL);
  (void) pthread_cond_init(&COND_refresh,NULL);
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  (void) pthread_cond_init(&COND_global_read_lock,NULL);
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  (void) pthread_cond_init(&COND_thread_cache,NULL);
  (void) pthread_cond_init(&COND_flush_thread_cache,NULL);
3570
  (void) pthread_cond_init(&COND_manager,NULL);
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#ifdef HAVE_REPLICATION
3572
  (void) pthread_mutex_init(&LOCK_rpl_status, MY_MUTEX_INIT_FAST);
3573
  (void) pthread_cond_init(&COND_rpl_status, NULL);
3574
#endif
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  (void) pthread_mutex_init(&LOCK_server_started, MY_MUTEX_INIT_FAST);
  (void) pthread_cond_init(&COND_server_started,NULL);
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  sp_cache_init();
3578
#ifdef HAVE_EVENT_SCHEDULER
3579
  Events::init_mutexes();
3580
#endif
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  /* Parameter for threads created for connections */
  (void) pthread_attr_init(&connection_attrib);
  (void) pthread_attr_setdetachstate(&connection_attrib,
				     PTHREAD_CREATE_DETACHED);
  pthread_attr_setscope(&connection_attrib, PTHREAD_SCOPE_SYSTEM);
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  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_attr_setprio(&connection_attrib,WAIT_PRIOR);
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  if (pthread_key_create(&THR_THD,NULL) ||
      pthread_key_create(&THR_MALLOC,NULL))
  {
    sql_print_error("Can't create thread-keys");
    return 1;
  }
  return 0;
}

3598

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3599
#if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL)
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static unsigned long openssl_id_function()
{ 
  return (unsigned long) pthread_self();
} 


static openssl_lock_t *openssl_dynlock_create(const char *file, int line)
{ 
  openssl_lock_t *lock= new openssl_lock_t;
  my_rwlock_init(&lock->lock, NULL);
  return lock;
}


static void openssl_dynlock_destroy(openssl_lock_t *lock, const char *file, 
				    int line)
{
  rwlock_destroy(&lock->lock);
  delete lock;
}


static void openssl_lock_function(int mode, int n, const char *file, int line)
{
  if (n < 0 || n > CRYPTO_num_locks())
  {
    /* Lock number out of bounds. */
    sql_print_error("Fatal: OpenSSL interface problem (n = %d)", n);
    abort();
  }
  openssl_lock(mode, &openssl_stdlocks[n], file, line);
}


static void openssl_lock(int mode, openssl_lock_t *lock, const char *file, 
			 int line)
{
  int err;
  char const *what;

  switch (mode) {
  case CRYPTO_LOCK|CRYPTO_READ:
    what = "read lock";
    err = rw_rdlock(&lock->lock);
    break;
  case CRYPTO_LOCK|CRYPTO_WRITE:
    what = "write lock";
    err = rw_wrlock(&lock->lock);
    break;
  case CRYPTO_UNLOCK|CRYPTO_READ:
  case CRYPTO_UNLOCK|CRYPTO_WRITE:
    what = "unlock";
    err = rw_unlock(&lock->lock);
    break;
  default:
    /* Unknown locking mode. */
    sql_print_error("Fatal: OpenSSL interface problem (mode=0x%x)", mode);
    abort();
  }
  if (err) 
  {
3661
    sql_print_error("Fatal: can't %s OpenSSL lock", what);
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    abort();
  }
}
#endif /* HAVE_OPENSSL */


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#ifndef EMBEDDED_LIBRARY

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static void init_ssl()
{
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#ifdef HAVE_OPENSSL
  if (opt_use_ssl)
  {
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    enum enum_ssl_init_error error= SSL_INITERR_NOERROR;

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    /* having ssl_acceptor_fd != 0 signals the use of SSL */
    ssl_acceptor_fd= new_VioSSLAcceptorFd(opt_ssl_key, opt_ssl_cert,
					  opt_ssl_ca, opt_ssl_capath,
3680
					  opt_ssl_cipher, &error);
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    DBUG_PRINT("info",("ssl_acceptor_fd: 0x%lx", (long) ssl_acceptor_fd));
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    if (!ssl_acceptor_fd)
3683
    {
3684
      sql_print_warning("Failed to setup SSL");
3685
      sql_print_warning("SSL error: %s", sslGetErrString(error));
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      opt_use_ssl = 0;
3687
      have_ssl= SHOW_OPTION_DISABLED;
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    }
  }
  else
  {
3692
    have_ssl= SHOW_OPTION_DISABLED;
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  }
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  if (des_key_file)
    load_des_key_file(des_key_file);
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#endif /* HAVE_OPENSSL */
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}
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3699

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static void end_ssl()
{
#ifdef HAVE_OPENSSL
  if (ssl_acceptor_fd)
  {
    free_vio_ssl_acceptor_fd(ssl_acceptor_fd);
    ssl_acceptor_fd= 0;
  }
#endif /* HAVE_OPENSSL */
}

3711
#endif /* EMBEDDED_LIBRARY */
3712

3713

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static int init_server_components()
{
3716
  DBUG_ENTER("init_server_components");
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  /*
    We need to call each of these following functions to ensure that
    all things are initialized so that unireg_abort() doesn't fail
  */
  if (table_cache_init() | table_def_init() | hostname_cache_init())
3722
    unireg_abort(1);
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  query_cache_result_size_limit(query_cache_limit);
3725
  query_cache_set_min_res_unit(query_cache_min_res_unit);
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  query_cache_init();
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  query_cache_resize(query_cache_size);
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  randominit(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2);
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  setup_fpu();
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  init_thr_lock();
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#ifdef HAVE_REPLICATION
3732
  init_slave_list();
3733
#endif
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  /* Setup logs */

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  /*
    Enable old-fashioned error log, except when the user has requested
    help information. Since the implementation of plugin server
    variables the help output is now written much later.
  */
  if (opt_error_log && !opt_help)
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  {
    if (!log_error_file_ptr[0])
3745
      fn_format(log_error_file, pidfile_name, mysql_data_home, ".err",
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                MY_REPLACE_EXT); /* replace '.<domain>' by '.err', bug#4997 */
    else
      fn_format(log_error_file, log_error_file_ptr, mysql_data_home, ".err",
                MY_UNPACK_FILENAME | MY_SAFE_PATH);
    if (!log_error_file[0])
      opt_error_log= 1;				// Too long file name
    else
    {
#ifndef EMBEDDED_LIBRARY
      if (freopen(log_error_file, "a+", stdout))
#endif
3757
      {
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        freopen(log_error_file, "a+", stderr);
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        setbuf(stderr, NULL);
      }
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    }
  }

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  if (xid_cache_init())
  {
    sql_print_error("Out of memory");
    unireg_abort(1);
  }

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  /* initialize delegates for extension observers */
  if (delegates_init())
  {
    sql_print_error("Initialize extension delegates failed");
    unireg_abort(1);
  }

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  /* need to configure logging before initializing storage engines */
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  if (opt_update_log)
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  {
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    /*
      Update log is removed since 5.0. But we still accept the option.
      The idea is if the user already uses the binlog and the update log,
      we completely ignore any option/variable related to the update log, like
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      if the update log did not exist. But if the user uses only the update
      log, then we translate everything into binlog for him (with warnings).
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      Implementation of the above :
      - If mysqld is started with --log-update and --log-bin,
      ignore --log-update (print a warning), push a warning when SQL_LOG_UPDATE
      is used, and turn off --sql-bin-update-same.
      This will completely ignore SQL_LOG_UPDATE
      - If mysqld is started with --log-update only,
      change it to --log-bin (with the filename passed to log-update,
      plus '-bin') (print a warning), push a warning when SQL_LOG_UPDATE is
      used, and turn on --sql-bin-update-same.
      This will translate SQL_LOG_UPDATE to SQL_LOG_BIN.

      Note that we tell the user that --sql-bin-update-same is deprecated and
      does nothing, and we don't take into account if he used this option or
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      not; but internally we give this variable a value to have the behaviour
      we want (i.e. have SQL_LOG_UPDATE influence SQL_LOG_BIN or not).
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      As sql-bin-update-same, log-update and log-bin cannot be changed by the
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      user after starting the server (they are not variables), the user will
      not later interfere with the settings we do here.
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    */
    if (opt_bin_log)
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    {
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      opt_sql_bin_update= 0;
      sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log.");
    }
    else
    {
      opt_sql_bin_update= 1;
      opt_bin_log= 1;
      if (opt_update_logname)
      {
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        /* as opt_bin_log==0, no need to free opt_bin_logname */
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3818
        if (!(opt_bin_logname= my_strdup(opt_update_logname, MYF(MY_WME))))
3819 3820 3821 3822
        {
          sql_print_error("Out of memory");
          return EXIT_OUT_OF_MEMORY;
        }
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        sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log. Now starting MySQL \
with --log-bin='%s' instead.",opt_bin_logname);
      }
      else
        sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log. Now starting MySQL \
with --log-bin instead.");
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    }
3832
  }
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  if (opt_log_slave_updates && !opt_bin_log)
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  {
3835
    sql_print_warning("You need to use --log-bin to make "
3836
                    "--log-slave-updates work.");
3837
  }
3838
  if (!opt_bin_log)
3839
  {
3840 3841
    if (opt_binlog_format_id != BINLOG_FORMAT_UNSPEC)
    {
3842 3843 3844 3845
      sql_print_warning("You need to use --log-bin to make "
                        "--binlog-format work.");

      global_system_variables.binlog_format= opt_binlog_format_id;
3846
    }
3847
    else
3848 3849
    {
      global_system_variables.binlog_format= BINLOG_FORMAT_STMT;
3850
    }
3851
  }
3852 3853
  else
    if (opt_binlog_format_id == BINLOG_FORMAT_UNSPEC)
3854
      global_system_variables.binlog_format= BINLOG_FORMAT_STMT;
3855 3856 3857
    else
    { 
      DBUG_ASSERT(global_system_variables.binlog_format != BINLOG_FORMAT_UNSPEC);
3858
    }
3859

3860
  /* Check that we have not let the format to unspecified at this point */
3861
  DBUG_ASSERT((uint)global_system_variables.binlog_format <=
3862
              array_elements(binlog_format_names)-1);
3863

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#ifdef HAVE_REPLICATION
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  if (opt_log_slave_updates && replicate_same_server_id)
  {
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    if (opt_bin_log)
    {
      sql_print_error("using --replicate-same-server-id in conjunction with \
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--log-slave-updates is impossible, it would lead to infinite loops in this \
server.");
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      unireg_abort(1);
    }
    else
      sql_print_warning("using --replicate-same-server-id in conjunction with \
--log-slave-updates would lead to infinite loops in this server. However this \
will be ignored as the --log-bin option is not defined.");
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  }
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#endif
3880

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  if (opt_bin_log)
3882
  {
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    char buf[FN_REFLEN];
    const char *ln;
    ln= mysql_bin_log.generate_name(opt_bin_logname, "-bin", 1, buf);
    if (!opt_bin_logname && !opt_binlog_index_name)
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    {
      /*
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        User didn't give us info to name the binlog index file.
        Picking `hostname`-bin.index like did in 4.x, causes replication to
        fail if the hostname is changed later. So, we would like to instead
        require a name. But as we don't want to break many existing setups, we
        only give warning, not error.
3894
      */
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      sql_print_warning("No argument was provided to --log-bin, and "
                        "--log-bin-index was not used; so replication "
                        "may break when this MySQL server acts as a "
                        "master and has his hostname changed!! Please "
                        "use '--log-bin=%s' to avoid this problem.", ln);
3900
    }
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    if (ln == buf)
3902
    {
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      my_free(opt_bin_logname, MYF(MY_ALLOW_ZERO_PTR));
      opt_bin_logname=my_strdup(buf, MYF(0));
3905
    }
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    if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln))
    {
      unireg_abort(1);
    }
3910 3911
  }

3912 3913 3914 3915 3916 3917 3918
  /* call ha_init_key_cache() on all key caches to init them */
  process_key_caches(&ha_init_key_cache);

  /* Allow storage engine to give real error messages */
  if (ha_init_errors())
    DBUG_RETURN(1);

3919 3920 3921 3922 3923 3924 3925 3926 3927
  { 
    if (plugin_init(&defaults_argc, defaults_argv,
		    (opt_noacl ? PLUGIN_INIT_SKIP_PLUGIN_TABLE : 0) |
		    (opt_help ? PLUGIN_INIT_SKIP_INITIALIZATION : 0)))
    {
      sql_print_error("Failed to initialize plugins.");
      unireg_abort(1);
    }
    plugins_are_initialized= TRUE;  /* Don't separate from init function */
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  }

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  if (opt_help)
    unireg_abort(0);

  /* we do want to exit if there are any other unknown options */
  if (defaults_argc > 1)
  {
    int ho_error;
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    char **tmp_argv= defaults_argv;
    struct my_option no_opts[]=
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    {
      {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
    };
    /*
      We need to eat any 'loose' arguments first before we conclude
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      that there are unprocessed options.
      But we need to preserve defaults_argv pointer intact for
      free_defaults() to work. Thus we use a copy here.
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    */
    my_getopt_skip_unknown= 0;
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    if ((ho_error= handle_options(&defaults_argc, &tmp_argv, no_opts,
3951
                                  mysqld_get_one_option)))
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      unireg_abort(ho_error);
3953
    my_getopt_skip_unknown= TRUE;
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3954

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    if (defaults_argc)
    {
      fprintf(stderr, "%s: Too many arguments (first extra is '%s').\n"
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              "Use --verbose --help to get a list of available options\n",
              my_progname, *tmp_argv);
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      unireg_abort(1);
    }
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  }

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  /* if the errmsg.sys is not loaded, terminate to maintain behaviour */
  if (!errmesg[0][0])
    unireg_abort(1);

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  /* We have to initialize the storage engines before CSV logging */
  if (ha_init())
  {
    sql_print_error("Can't init databases");
    unireg_abort(1);
  }

#ifdef WITH_CSV_STORAGE_ENGINE
  if (opt_bootstrap)
    log_output_options= LOG_FILE;
  else
    logger.init_log_tables();

  if (log_output_options & LOG_NONE)
  {
    /*
      Issue a warining if there were specified additional options to the
      log-output along with NONE. Probably this wasn't what user wanted.
    */
    if ((log_output_options & LOG_NONE) && (log_output_options & ~LOG_NONE))
      sql_print_warning("There were other values specified to "
                        "log-output besides NONE. Disabling slow "
                        "and general logs anyway.");
    logger.set_handlers(LOG_FILE, LOG_NONE, LOG_NONE);
  }
  else
  {
    /* fall back to the log files if tables are not present */
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    LEX_STRING csv_name={C_STRING_WITH_LEN("csv")};
    if (!plugin_is_ready(&csv_name, MYSQL_STORAGE_ENGINE_PLUGIN))
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    {
3999
      /* purecov: begin inspected */
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      sql_print_error("CSV engine is not present, falling back to the "
                      "log files");
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      log_output_options= (log_output_options & ~LOG_TABLE) | LOG_FILE;
4003
      /* purecov: end */
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    }

    logger.set_handlers(LOG_FILE, opt_slow_log ? log_output_options:LOG_NONE,
                        opt_log ? log_output_options:LOG_NONE);
  }
#else
  logger.set_handlers(LOG_FILE, opt_slow_log ? LOG_FILE:LOG_NONE,
                      opt_log ? LOG_FILE:LOG_NONE);
#endif

4014 4015 4016
  /*
    Check that the default storage engine is actually available.
  */
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  if (default_storage_engine_str)
4018
  {
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    LEX_STRING name= { default_storage_engine_str,
                       strlen(default_storage_engine_str) };
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    plugin_ref plugin;
    handlerton *hton;
    
    if ((plugin= ha_resolve_by_name(0, &name)))
      hton= plugin_data(plugin, handlerton*);
    else
4027
    {
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      sql_print_error("Unknown/unsupported table type: %s",
                      default_storage_engine_str);
4030 4031
      unireg_abort(1);
    }
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    if (!ha_storage_engine_is_enabled(hton))
    {
      if (!opt_bootstrap)
      {
        sql_print_error("Default storage engine (%s) is not available",
                        default_storage_engine_str);
        unireg_abort(1);
      }
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4040 4041 4042 4043 4044 4045 4046 4047 4048 4049
      DBUG_ASSERT(global_system_variables.table_plugin);
    }
    else
    {
      /*
        Need to unlock as global_system_variables.table_plugin 
        was acquired during plugin_init()
      */
      plugin_unlock(0, global_system_variables.table_plugin);
      global_system_variables.table_plugin= plugin;
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    }
4051 4052
  }

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  tc_log= (total_ha_2pc > 1 ? (opt_bin_log  ?
                               (TC_LOG *) &mysql_bin_log :
                               (TC_LOG *) &tc_log_mmap) :
           (TC_LOG *) &tc_log_dummy);
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4057

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4058
  if (tc_log->open(opt_bin_log ? opt_bin_logname : opt_tc_log_file))
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4059 4060 4061 4062 4063
  {
    sql_print_error("Can't init tc log");
    unireg_abort(1);
  }

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4064 4065 4066 4067 4068
  if (ha_recover(0))
  {
    unireg_abort(1);
  }

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4069 4070
  if (opt_bin_log && mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0,
                                        WRITE_CACHE, 0, max_binlog_size, 0))
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    unireg_abort(1);
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4072 4073 4074

#ifdef HAVE_REPLICATION
  if (opt_bin_log && expire_logs_days)
4075
  {
4076
    time_t purge_time= server_start_time - expire_logs_days*24*60*60;
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    if (purge_time >= 0)
      mysql_bin_log.purge_logs_before_date(purge_time);
4079
  }
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#endif
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#ifdef __NETWARE__
  /* Increasing stacksize of threads on NetWare */
  pthread_attr_setstacksize(&connection_attrib, NW_THD_STACKSIZE);
#endif
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  if (opt_myisam_log)
    (void) mi_log(1);
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4088

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4089
#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY)
4090
  if (locked_in_memory && !getuid())
4091
  {
4092
    if (setreuid((uid_t)-1, 0) == -1)
4093
    {                        // this should never happen
4094
      sql_perror("setreuid");
4095 4096
      unireg_abort(1);
    }
4097 4098
    if (mlockall(MCL_CURRENT))
    {
4099
      if (global_system_variables.log_warnings)
4100
	sql_print_warning("Failed to lock memory. Errno: %d\n",errno);
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      locked_in_memory= 0;
4102
    }
4103 4104
    if (user_info)
      set_user(mysqld_user, user_info);
4105
  }
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  else
4107
#endif
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    locked_in_memory=0;
4109

4110
  ft_init_stopwords();
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4111

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  init_max_user_conn();
4113
  init_update_queries();
4114
  DBUG_RETURN(0);
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}
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4117

4118
#ifndef EMBEDDED_LIBRARY
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static void create_shutdown_thread()
{
#ifdef __WIN__
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  hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
4126
    sql_print_warning("Can't create thread to handle shutdown requests");
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4128 4129
  // On "Stop Service" we have to do regular shutdown
  Service.SetShutdownEvent(hEventShutdown);
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#endif /* __WIN__ */
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}
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4133
#endif /* EMBEDDED_LIBRARY */
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4136
#if (defined(__NT__) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
4137
static void handle_connections_methods()
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{
4139 4140 4141
  pthread_t hThread;
  DBUG_ENTER("handle_connections_methods");
#ifdef __NT__
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  if (hPipe == INVALID_HANDLE_VALUE &&
4143 4144
      (!have_tcpip || opt_disable_networking) &&
      !opt_enable_shared_memory)
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  {
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    sql_print_error("TCP/IP, --shared-memory, or --named-pipe should be configured on NT OS");
4147
    unireg_abort(1);				// Will not return
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  }
4149 4150 4151 4152 4153 4154 4155
#endif

  pthread_mutex_lock(&LOCK_thread_count);
  (void) pthread_cond_init(&COND_handler_count,NULL);
  handler_count=0;
#ifdef __NT__
  if (hPipe != INVALID_HANDLE_VALUE)
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  {
4157 4158 4159
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_namedpipes, 0))
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    {
4161
      sql_print_warning("Can't create thread to handle named pipes");
4162 4163 4164 4165 4166 4167 4168 4169 4170 4171
      handler_count--;
    }
  }
#endif /* __NT__ */
  if (have_tcpip && !opt_disable_networking)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_sockets, 0))
    {
4172
      sql_print_warning("Can't create thread to handle TCP/IP");
4173 4174 4175 4176 4177 4178 4179 4180 4181 4182
      handler_count--;
    }
  }
#ifdef HAVE_SMEM
  if (opt_enable_shared_memory)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_shared_memory, 0))
    {
4183
      sql_print_warning("Can't create thread to handle shared memory");
4184
      handler_count--;
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    }
  }
4187
#endif 
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4189 4190 4191 4192 4193
  while (handler_count > 0)
    pthread_cond_wait(&COND_handler_count,&LOCK_thread_count);
  pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_VOID_RETURN;
}
4194 4195 4196 4197 4198 4199

void decrement_handler_count()
{
  pthread_mutex_lock(&LOCK_thread_count);
  handler_count--;
  pthread_cond_signal(&COND_handler_count);
4200 4201
  pthread_mutex_unlock(&LOCK_thread_count);  
  my_thread_end();
4202 4203 4204
}
#else
#define decrement_handler_count()
4205 4206 4207
#endif /* defined(__NT__) || defined(HAVE_SMEM) */


Sergey Glukhov's avatar
Sergey Glukhov committed
4208
#ifndef EMBEDDED_LIBRARY
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#ifndef DBUG_OFF
/*
  Debugging helper function to keep the locale database
  (see sql_locale.cc) and max_month_name_length and
  max_day_name_length variable values in consistent state.
*/
static void test_lc_time_sz()
{
  DBUG_ENTER("test_lc_time_sz");
  for (MY_LOCALE **loc= my_locales; *loc; loc++)
  {
    uint max_month_len= 0;
    uint max_day_len = 0;
    for (const char **month= (*loc)->month_names->type_names; *month; month++)
    {
      set_if_bigger(max_month_len,
                    my_numchars_mb(&my_charset_utf8_general_ci,
                                   *month, *month + strlen(*month)));
    }
    for (const char **day= (*loc)->day_names->type_names; *day; day++)
    {
      set_if_bigger(max_day_len,
                    my_numchars_mb(&my_charset_utf8_general_ci,
                                   *day, *day + strlen(*day)));
    }
    if ((*loc)->max_month_name_length != max_month_len ||
        (*loc)->max_day_name_length != max_day_len)
    {
      DBUG_PRINT("Wrong max day name(or month name) length for locale:",
                 ("%s", (*loc)->name));
      DBUG_ASSERT(0);
    }
  }
  DBUG_VOID_RETURN;
}
#endif//DBUG_OFF


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#ifdef __WIN__
int win_main(int argc, char **argv)
#else
int main(int argc, char **argv)
#endif
{
4253 4254 4255
  MY_INIT(argv[0]);		// init my_sys library & pthreads
  /* nothing should come before this line ^^^ */

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  /* Set signal used to kill MySQL */
#if defined(SIGUSR2)
  thr_kill_signal= thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2;
#else
  thr_kill_signal= SIGINT;
#endif

4263 4264 4265 4266 4267 4268
  /*
    Perform basic logger initialization logger. Should be called after
    MY_INIT, as it initializes mutexes. Log tables are inited later.
  */
  logger.init_base();

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#ifdef _CUSTOMSTARTUPCONFIG_
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  if (_cust_check_startup())
  {
    / * _cust_check_startup will report startup failure error * /
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    exit(1);
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  }
#endif
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4277
#ifdef	__WIN__
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  /*
    Before performing any socket operation (like retrieving hostname
    in init_common_variables we have to call WSAStartup
  */
4282 4283 4284 4285
  {
    WSADATA WsaData;
    if (SOCKET_ERROR == WSAStartup (0x0101, &WsaData))
    {
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      /* errors are not read yet, so we use english text here */
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      my_message(ER_WSAS_FAILED, "WSAStartup Failed", MYF(0));
      unireg_abort(1);
    }
  }
#endif /* __WIN__ */

4293 4294 4295
  if (init_common_variables(MYSQL_CONFIG_NAME,
			    argc, argv, load_default_groups))
    unireg_abort(1);				// Will do exit
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  init_signals();
  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_setprio(pthread_self(),CONNECT_PRIOR);
4300
#if defined(__ia64__) || defined(__ia64)
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  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
4305
  pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size*2);
4306
#else
4307
  pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size);
4308
#endif
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#ifdef HAVE_PTHREAD_ATTR_GETSTACKSIZE
  {
    /* Retrieve used stack size;  Needed for checking stack overflows */
    size_t stack_size= 0;
    pthread_attr_getstacksize(&connection_attrib, &stack_size);
4314 4315 4316
#if defined(__ia64__) || defined(__ia64)
    stack_size/= 2;
#endif
4317
    /* We must check if stack_size = 0 as Solaris 2.9 can return 0 here */
4318
    if (stack_size && stack_size < my_thread_stack_size)
4319 4320
    {
      if (global_system_variables.log_warnings)
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	sql_print_warning("Asked for %lu thread stack, but got %ld",
4322
			  my_thread_stack_size, (long) stack_size);
4323
#if defined(__ia64__) || defined(__ia64)
4324
      my_thread_stack_size= stack_size*2;
4325
#else
4326
      my_thread_stack_size= stack_size;
4327
#endif
4328 4329 4330
    }
  }
#endif
4331 4332 4333 4334
#ifdef __NETWARE__
  /* Increasing stacksize of threads on NetWare */
  pthread_attr_setstacksize(&connection_attrib, NW_THD_STACKSIZE);
#endif
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4336
  (void) thr_setconcurrency(concurrency);	// 10 by default
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4338 4339
  select_thread=pthread_self();
  select_thread_in_use=1;
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#ifdef HAVE_LIBWRAP
  libwrapName= my_progname+dirname_length(my_progname);
  openlog(libwrapName, LOG_PID, LOG_AUTH);
#endif

4346 4347 4348 4349
#ifndef DBUG_OFF
  test_lc_time_sz();
#endif

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  /*
    We have enough space for fiddling with the argv, continue
  */
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  check_data_home(mysql_real_data_home);
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  if (my_setwd(mysql_real_data_home,MYF(MY_WME)) && !opt_help)
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    unireg_abort(1);				/* purecov: inspected */
  mysql_data_home= mysql_data_home_buff;
  mysql_data_home[0]=FN_CURLIB;		// all paths are relative from here
  mysql_data_home[1]=0;
4359
  mysql_data_home_len= 2;
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  if ((user_info= check_user(mysqld_user)))
  {
#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
    if (locked_in_memory) // getuid() == 0 here
      set_effective_user(user_info);
    else
#endif
      set_user(mysqld_user, user_info);
  }

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  if (opt_bin_log && !server_id)
  {
    server_id= !master_host ? 1 : 2;
#ifdef EXTRA_DEBUG
4375
    switch (server_id) {
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    case 1:
4377 4378
      sql_print_warning("\
You have enabled the binary log, but you haven't set server-id to \
4379 4380
a non-zero value: we force server id to 1; updates will be logged to the \
binary log, but connections from slaves will not be accepted.");
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      break;
    case 2:
4383 4384
      sql_print_warning("\
You should set server-id to a non-0 value if master_host is set; \
4385
we force server id to 2, but this MySQL server will not act as a slave.");
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      break;
    }
4388
#endif
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  }

  if (init_server_components())
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    unireg_abort(1);
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4394
  init_ssl();
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  network_init();

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#ifdef __WIN__
  if (!opt_console)
  {
4400 4401
    freopen(log_error_file,"a+",stdout);
    freopen(log_error_file,"a+",stderr);
4402
    setbuf(stderr, NULL);
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    FreeConsole();				// Remove window
4404
  }
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#endif

4407 4408 4409 4410 4411 4412
  /*
   Initialize my_str_malloc() and my_str_free()
  */
  my_str_malloc= &my_str_malloc_mysqld;
  my_str_free= &my_str_free_mysqld;

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  /*
    init signals & alarm
    After this we can't quit by a simple unireg_abort
  */
4417
  error_handler_hook= my_message_sql;
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  start_signal_handler();				// Creates pidfile
4419

4420
  if (mysql_rm_tmp_tables() || acl_init(opt_noacl) ||
4421
      my_tz_init((THD *)0, default_tz_name, opt_bootstrap))
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  {
    abort_loop=1;
    select_thread_in_use=0;
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#ifndef __NETWARE__
    (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL);
#endif /* __NETWARE__ */
4428

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    if (!opt_bootstrap)
      (void) my_delete(pidfile_name,MYF(MY_WME));	// Not needed anymore
4431

4432
    if (unix_sock != INVALID_SOCKET)
4433
      unlink(mysqld_unix_port);
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    exit(1);
  }
  if (!opt_noacl)
4437
    (void) grant_init();
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4438

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  if (!opt_bootstrap)
    servers_init(0);

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  if (!opt_noacl)
4443 4444
  {
#ifdef HAVE_DLOPEN
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    udf_init();
#endif
4447
  }
4448

4449
  init_status_vars();
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  if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
    opt_skip_slave_start= 1;
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  /*
    init_slave() must be called after the thread keys are created.
    Some parts of the code (e.g. SHOW STATUS LIKE 'slave_running' and other
    places) assume that active_mi != 0, so let's fail if it's 0 (out of
    memory); a message has already been printed.
  */
  if (init_slave() && !active_mi)
  {
    unireg_abort(1);
  }
4462

4463 4464 4465 4466 4467
  execute_ddl_log_recovery();

  if (Events::init(opt_noacl || opt_bootstrap))
    unireg_abort(1);

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  if (opt_bootstrap)
  {
4470
    select_thread_in_use= 0;                    // Allow 'kill' to work
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    bootstrap(stdin);
    unireg_abort(bootstrap_error ? 1 : 0);
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  }
  if (opt_init_file)
  {
    if (read_init_file(opt_init_file))
      unireg_abort(1);
  }
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  create_shutdown_thread();
4481
  start_handle_manager();
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4483
  sql_print_information(ER(ER_STARTUP),my_progname,server_version,
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                        ((unix_sock == INVALID_SOCKET) ? (char*) ""
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                                                       : mysqld_unix_port),
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                         mysqld_port,
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                         MYSQL_COMPILATION_COMMENT);
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#if defined(_WIN32) && !defined(EMBEDDED_LIBRARY)
  Service.SetRunning();
#endif
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  /* Signal threads waiting for server to be started */
  pthread_mutex_lock(&LOCK_server_started);
  mysqld_server_started= 1;
  pthread_cond_signal(&COND_server_started);
  pthread_mutex_unlock(&LOCK_server_started);

4499 4500
#if defined(__NT__) || defined(HAVE_SMEM)
  handle_connections_methods();
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#else
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4502
#ifdef __WIN__
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4503
  if (!have_tcpip || opt_disable_networking)
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  {
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    sql_print_error("TCP/IP unavailable or disabled with --skip-networking; no available interfaces");
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    unireg_abort(1);
  }
#endif
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  handle_connections_sockets(0);
#endif /* __NT__ */

  /* (void) pthread_attr_destroy(&connection_attrib); */
4513
  
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  DBUG_PRINT("quit",("Exiting main thread"));

#ifndef __WIN__
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#ifdef EXTRA_DEBUG2
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  sql_print_error("Before Lock_thread_count");
#endif
  (void) pthread_mutex_lock(&LOCK_thread_count);
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  DBUG_PRINT("quit", ("Got thread_count mutex"));
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  select_thread_in_use=0;			// For close_connections
  (void) pthread_mutex_unlock(&LOCK_thread_count);
4524
  (void) pthread_cond_broadcast(&COND_thread_count);
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#ifdef EXTRA_DEBUG2
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  sql_print_error("After lock_thread_count");
#endif
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4528
#endif /* __WIN__ */
4529

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  /* Wait until cleanup is done */
  (void) pthread_mutex_lock(&LOCK_thread_count);
  while (!ready_to_exit)
    pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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4535 4536

#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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  if (Service.IsNT() && start_mode)
    Service.Stop();
  else
  {
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    Service.SetShutdownEvent(0);
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    if (hEventShutdown)
      CloseHandle(hEventShutdown);
  }
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#endif
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4546
  clean_up(1);
4547
  wait_for_signal_thread_to_end();
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  clean_up_mutexes();
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  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
4550

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  exit(0);
  return(0);					/* purecov: deadcode */
}

4555
#endif /* EMBEDDED_LIBRARY */
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4557

4558 4559 4560 4561 4562
/****************************************************************************
  Main and thread entry function for Win32
  (all this is needed only to run mysqld as a service on WinNT)
****************************************************************************/

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#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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int mysql_service(void *p)
{
4566 4567 4568 4569
  if (use_opt_args)
    win_main(opt_argc, opt_argv);
  else
    win_main(Service.my_argc, Service.my_argv);
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  return 0;
}

4573 4574 4575 4576 4577 4578 4579 4580

/* Quote string if it contains space, else copy */

static char *add_quoted_string(char *to, const char *from, char *to_end)
{
  uint length= (uint) (to_end-to);

  if (!strchr(from, ' '))
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    return strmake(to, from, length-1);
  return strxnmov(to, length-1, "\"", from, "\"", NullS);
4583 4584 4585
}


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/**
  Handle basic handling of services, like installation and removal.
4588

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4589 4590 4591 4592 4593 4594 4595
  @param argv	   	        Pointer to argument list
  @param servicename		Internal name of service
  @param displayname		Display name of service (in taskbar ?)
  @param file_path		Path to this program
  @param startup_option	Startup option to mysqld

  @retval
4596
    0		option handled
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4597
  @retval
4598
    1		Could not handle option
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4599
*/
4600

4601 4602 4603 4604 4605
static bool
default_service_handling(char **argv,
			 const char *servicename,
			 const char *displayname,
			 const char *file_path,
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4606 4607
			 const char *extra_opt,
			 const char *account_name)
4608
{
4609
  char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end;
4610
  const char *opt_delim;
4611
  end= path_and_service + sizeof(path_and_service)-3;
4612 4613 4614 4615 4616

  /* We have to quote filename if it contains spaces */
  pos= add_quoted_string(path_and_service, file_path, end);
  if (*extra_opt)
  {
4617 4618 4619 4620 4621
    /* 
     Add option after file_path. There will be zero or one extra option.  It's 
     assumed to be --defaults-file=file but isn't checked.  The variable (not
     the option name) should be quoted if it contains a string.  
    */
4622
    *pos++= ' ';
4623 4624 4625 4626 4627 4628 4629 4630 4631
    if (opt_delim= strchr(extra_opt, '='))
    {
      size_t length= ++opt_delim - extra_opt;
      strnmov(pos, extra_opt, length);
    }
    else
      opt_delim= extra_opt;
    
    pos= add_quoted_string(pos, opt_delim, end);
4632
  }
4633 4634
  /* We must have servicename last */
  *pos++= ' ';
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4635
  (void) add_quoted_string(pos, servicename, end);
4636

4637 4638
  if (Service.got_service_option(argv, "install"))
  {
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4639 4640
    Service.Install(1, servicename, displayname, path_and_service,
                    account_name);
4641 4642 4643 4644
    return 0;
  }
  if (Service.got_service_option(argv, "install-manual"))
  {
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4645 4646
    Service.Install(0, servicename, displayname, path_and_service,
                    account_name);
4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657
    return 0;
  }
  if (Service.got_service_option(argv, "remove"))
  {
    Service.Remove(servicename);
    return 0;
  }
  return 1;
}


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4658 4659
int main(int argc, char **argv)
{
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4660 4661 4662 4663
  /*
    When several instances are running on the same machine, we
    need to have an  unique  named  hEventShudown  through the
    application PID e.g.: MySQLShutdown1890; MySQLShutdown2342
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4664
  */
4665
  int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name,
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4666 4667
                                                  "MySQLShutdown"), 10);

4668 4669 4670
  /* Must be initialized early for comparison of service name */
  system_charset_info= &my_charset_utf8_general_ci;

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4671
  if (Service.GetOS())	/* true NT family */
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4672
  {
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4673
    char file_path[FN_REFLEN];
4674
    my_path(file_path, argv[0], "");		      /* Find name in path */
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    fn_format(file_path,argv[0],file_path,"",
	      MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_RESOLVE_SYMLINKS);
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4677

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4678
    if (argc == 2)
4679
    {
4680
      if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME,
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4681
				   file_path, "", NULL))
4682
	return 0;
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      if (Service.IsService(argv[1]))        /* Start an optional service */
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4684
      {
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4685 4686 4687 4688 4689 4690
	/*
	  Only add the service name to the groups read from the config file
	  if it's not "MySQL". (The default service name should be 'mysqld'
	  but we started a bad tradition by calling it MySQL from the start
	  and we are now stuck with it.
	*/
4691
	if (my_strcasecmp(system_charset_info, argv[1],"mysql"))
4692
	  load_default_groups[load_default_groups_sz-2]= argv[1];
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4693
        start_mode= 1;
4694
        Service.Init(argv[1], mysql_service);
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        return 0;
      }
    }
    else if (argc == 3) /* install or remove any optional service */
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    {
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4700 4701
      if (!default_service_handling(argv, argv[2], argv[2], file_path, "",
                                    NULL))
4702 4703
	return 0;
      if (Service.IsService(argv[2]))
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4704
      {
4705 4706 4707 4708
	/*
	  mysqld was started as
	  mysqld --defaults-file=my_path\my.ini service-name
	*/
4709
	use_opt_args=1;
4710
	opt_argc= 2;				// Skip service-name
4711 4712
	opt_argv=argv;
	start_mode= 1;
4713
	if (my_strcasecmp(system_charset_info, argv[2],"mysql"))
4714
	  load_default_groups[load_default_groups_sz-2]= argv[2];
4715
	Service.Init(argv[2], mysql_service);
4716
	return 0;
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4717 4718
      }
    }
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4719
    else if (argc == 4 || argc == 5)
4720 4721
    {
      /*
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4722 4723 4724 4725 4726
        This may seem strange, because we handle --local-service while
        preserving 4.1's behavior of allowing any one other argument that is
        passed to the service on startup. (The assumption is that this is
        --defaults-file=file, but that was not enforced in 4.1, so we don't
        enforce it here.)
4727
      */
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4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742
      const char *extra_opt= NullS;
      const char *account_name = NullS;
      int index;
      for (index = 3; index < argc; index++)
      {
        if (!strcmp(argv[index], "--local-service"))
          account_name= "NT AUTHORITY\\LocalService";
        else
          extra_opt= argv[index];
      }

      if (argc == 4 || account_name)
        if (!default_service_handling(argv, argv[2], argv[2], file_path,
                                      extra_opt, account_name))
          return 0;
4743
    }
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4744
    else if (argc == 1 && Service.IsService(MYSQL_SERVICENAME))
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    {
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      /* start the default service */
      start_mode= 1;
      Service.Init(MYSQL_SERVICENAME, mysql_service);
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      return 0;
    }
  }
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  /* Start as standalone server */
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  Service.my_argc=argc;
  Service.my_argv=argv;
  mysql_service(NULL);
  return 0;
}
#endif


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4761
/**
4762 4763 4764
  Execute all commands from a file. Used by the mysql_install_db script to
  create MySQL privilege tables without having to start a full MySQL server.
*/
4765

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4766
static void bootstrap(FILE *file)
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4767
{
4768
  DBUG_ENTER("bootstrap");
4769

4770
  THD *thd= new THD;
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  thd->bootstrap=1;
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  my_net_init(&thd->net,(st_vio*) 0);
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  thd->max_client_packet_length= thd->net.max_packet;
4774
  thd->security_ctx->master_access= ~(ulong)0;
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  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
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  thread_count++;
4777
  in_bootstrap= TRUE;
4778 4779

  bootstrap_file=file;
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#ifndef EMBEDDED_LIBRARY			// TODO:  Enable this
4781 4782 4783
  if (pthread_create(&thd->real_id,&connection_attrib,handle_bootstrap,
		     (void*) thd))
  {
4784
    sql_print_warning("Can't create thread to handle bootstrap");
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4785 4786
    bootstrap_error=-1;
    DBUG_VOID_RETURN;
4787 4788 4789
  }
  /* Wait for thread to die */
  (void) pthread_mutex_lock(&LOCK_thread_count);
4790
  while (in_bootstrap)
4791 4792 4793 4794 4795
  {
    (void) pthread_cond_wait(&COND_thread_count,&LOCK_thread_count);
    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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#else
  thd->mysql= 0;
  handle_bootstrap((void *)thd);
#endif

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4801
  DBUG_VOID_RETURN;
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}

4804

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static bool read_init_file(char *file_name)
{
  FILE *file;
  DBUG_ENTER("read_init_file");
  DBUG_PRINT("enter",("name: %s",file_name));
  if (!(file=my_fopen(file_name,O_RDONLY,MYF(MY_WME))))
    return(1);
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4812
  bootstrap(file);
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  (void) my_fclose(file,MYF(MY_WME));
  return 0;
}


4818
#ifndef EMBEDDED_LIBRARY
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/*
   Simple scheduler that use the main thread to handle the request

   NOTES
     This is only used for debugging, when starting mysqld with
     --thread-handling=no-threads or --one-thread

     When we enter this function, LOCK_thread_count is hold!
*/
   
void handle_connection_in_main_thread(THD *thd)
{
  safe_mutex_assert_owner(&LOCK_thread_count);
  thread_cache_size=0;			// Safety
  threads.append(thd);
4835 4836 4837
  pthread_mutex_unlock(&LOCK_thread_count);
  thd->start_utime= my_micro_time();
  handle_one_connection(thd);
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}


/*
  Scheduler that uses one thread per connection
*/

void create_thread_to_handle_connection(THD *thd)
{
  if (cached_thread_count > wake_thread)
  {
    /* Get thread from cache */
    thread_cache.append(thd);
    wake_thread++;
    pthread_cond_signal(&COND_thread_cache);
  }
  else
  {
4856
    char error_message_buff[MYSQL_ERRMSG_SIZE];
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4857 4858 4859 4860 4861
    /* Create new thread to handle connection */
    int error;
    thread_created++;
    threads.append(thd);
    DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id));
4862
    thd->prior_thr_create_utime= thd->start_utime= my_micro_time();
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4863 4864 4865 4866 4867 4868 4869 4870 4871 4872 4873
    if ((error=pthread_create(&thd->real_id,&connection_attrib,
                              handle_one_connection,
                              (void*) thd)))
    {
      /* purify: begin inspected */
      DBUG_PRINT("error",
                 ("Can't create thread to handle request (error %d)",
                  error));
      thread_count--;
      thd->killed= THD::KILL_CONNECTION;			// Safety
      (void) pthread_mutex_unlock(&LOCK_thread_count);
4874 4875 4876 4877 4878

      pthread_mutex_lock(&LOCK_connection_count);
      --connection_count;
      pthread_mutex_unlock(&LOCK_connection_count);

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4879
      statistic_increment(aborted_connects,&LOCK_status);
4880 4881 4882 4883
      /* Can't use my_error() since store_globals has not been called. */
      my_snprintf(error_message_buff, sizeof(error_message_buff),
                  ER(ER_CANT_CREATE_THREAD), error);
      net_send_error(thd, ER_CANT_CREATE_THREAD, error_message_buff);
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4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896
      (void) pthread_mutex_lock(&LOCK_thread_count);
      close_connection(thd,0,0);
      delete thd;
      (void) pthread_mutex_unlock(&LOCK_thread_count);
      return;
      /* purecov: end */
    }
  }
  (void) pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_PRINT("info",("Thread created"));
}


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4897
/**
4898 4899 4900 4901 4902 4903
  Create new thread to handle incoming connection.

    This function will create new thread to handle the incoming
    connection.  If there are idle cached threads one will be used.
    'thd' will be pushed into 'threads'.

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4904
    In single-threaded mode (\#define ONE_THREAD) connection will be
4905 4906
    handled inside this function.

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4907
  @param[in,out] thd    Thread handle of future thread.
4908 4909
*/

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static void create_new_thread(THD *thd)
{
4912
  NET *net=&thd->net;
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  DBUG_ENTER("create_new_thread");

  if (protocol_version > 9)
    net->return_errno=1;

4918 4919 4920 4921 4922 4923 4924 4925
  /*
    Don't allow too many connections. We roughly check here that we allow
    only (max_connections + 1) connections.
  */

  pthread_mutex_lock(&LOCK_connection_count);

  if (connection_count >= max_connections + 1 || abort_loop)
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4926
  {
4927 4928
    pthread_mutex_unlock(&LOCK_connection_count);

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4929
    DBUG_PRINT("error",("Too many connections"));
4930
    close_connection(thd, ER_CON_COUNT_ERROR, 1);
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    delete thd;
    DBUG_VOID_RETURN;
  }
4934 4935 4936

  ++connection_count;

4937 4938 4939
  if (connection_count > max_used_connections)
    max_used_connections= connection_count;

4940 4941 4942 4943
  pthread_mutex_unlock(&LOCK_connection_count);

  /* Start a new thread to handle connection. */

4944
  pthread_mutex_lock(&LOCK_thread_count);
4945

4946 4947 4948 4949 4950
  /*
    The initialization of thread_id is done in create_embedded_thd() for
    the embedded library.
    TODO: refactor this to avoid code duplication there
  */
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4951
  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
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4952

4953 4954
  thread_count++;

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4955
  thread_scheduler.add_connection(thd);
4956

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  DBUG_VOID_RETURN;
}
4959 4960
#endif /* EMBEDDED_LIBRARY */

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4961

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4962 4963 4964 4965
#ifdef SIGNALS_DONT_BREAK_READ
inline void kill_broken_server()
{
  /* hack to get around signals ignored in syscalls for problem OS's */
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4966 4967 4968 4969
  if (
#if !defined(__NETWARE__)
      unix_sock == INVALID_SOCKET ||
#endif
4970
      (!opt_disable_networking && ip_sock == INVALID_SOCKET))
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4971 4972
  {
    select_thread_in_use = 0;
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4973 4974
    /* The following call will never return */
    kill_server(IF_NETWARE(MYSQL_KILL_SIGNAL, (void*) MYSQL_KILL_SIGNAL));
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4975 4976 4977 4978 4979 4980
  }
}
#define MAYBE_BROKEN_SYSCALL kill_broken_server();
#else
#define MAYBE_BROKEN_SYSCALL
#endif
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4981 4982 4983

	/* Handle new connections and spawn new process to handle them */

4984
#ifndef EMBEDDED_LIBRARY
4985
pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused)))
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4986 4987 4988 4989 4990 4991 4992 4993
{
  my_socket sock,new_sock;
  uint error_count=0;
  uint max_used_connection= (uint) (max(ip_sock,unix_sock)+1);
  fd_set readFDs,clientFDs;
  THD *thd;
  struct sockaddr_in cAddr;
  int ip_flags=0,socket_flags=0,flags;
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4994
  st_vio *vio_tmp;
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4995 4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010
  DBUG_ENTER("handle_connections_sockets");

  LINT_INIT(new_sock);

  (void) my_pthread_getprio(pthread_self());		// For debugging

  FD_ZERO(&clientFDs);
  if (ip_sock != INVALID_SOCKET)
  {
    FD_SET(ip_sock,&clientFDs);
#ifdef HAVE_FCNTL
    ip_flags = fcntl(ip_sock, F_GETFL, 0);
#endif
  }
#ifdef HAVE_SYS_UN_H
  FD_SET(unix_sock,&clientFDs);
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5011
#ifdef HAVE_FCNTL
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5012
  socket_flags=fcntl(unix_sock, F_GETFL, 0);
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5013
#endif
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5014 5015 5016
#endif

  DBUG_PRINT("general",("Waiting for connections."));
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5017
  MAYBE_BROKEN_SYSCALL;
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5018 5019 5020
  while (!abort_loop)
  {
    readFDs=clientFDs;
5021
#ifdef HPUX10
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5022 5023 5024 5025 5026
    if (select(max_used_connection,(int*) &readFDs,0,0,0) < 0)
      continue;
#else
    if (select((int) max_used_connection,&readFDs,0,0,0) < 0)
    {
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5027
      if (socket_errno != SOCKET_EINTR)
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5028 5029
      {
	if (!select_errors++ && !abort_loop)	/* purecov: inspected */
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5030
	  sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */
unknown's avatar
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5031
      }
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5032
      MAYBE_BROKEN_SYSCALL
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5033 5034
      continue;
    }
5035
#endif	/* HPUX10 */
unknown's avatar
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5036
    if (abort_loop)
unknown's avatar
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5037 5038
    {
      MAYBE_BROKEN_SYSCALL;
unknown's avatar
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5039
      break;
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5040
    }
unknown's avatar
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5041

5042
    /* Is this a new connection request ? */
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5043 5044 5045 5046 5047 5048 5049 5050 5051 5052 5053 5054 5055 5056 5057 5058 5059 5060 5061 5062 5063 5064 5065 5066 5067 5068 5069 5070
#ifdef HAVE_SYS_UN_H
    if (FD_ISSET(unix_sock,&readFDs))
    {
      sock = unix_sock;
      flags= socket_flags;
    }
    else
#endif
    {
      sock = ip_sock;
      flags= ip_flags;
    }

#if !defined(NO_FCNTL_NONBLOCK)
    if (!(test_flags & TEST_BLOCKING))
    {
#if defined(O_NONBLOCK)
      fcntl(sock, F_SETFL, flags | O_NONBLOCK);
#elif defined(O_NDELAY)
      fcntl(sock, F_SETFL, flags | O_NDELAY);
#endif
    }
#endif /* NO_FCNTL_NONBLOCK */
    for (uint retry=0; retry < MAX_ACCEPT_RETRY; retry++)
    {
      size_socket length=sizeof(struct sockaddr_in);
      new_sock = accept(sock, my_reinterpret_cast(struct sockaddr *) (&cAddr),
			&length);
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5071 5072 5073 5074 5075 5076 5077
#ifdef __NETWARE__ 
      // TODO: temporary fix, waiting for TCP/IP fix - DEFECT000303149
      if ((new_sock == INVALID_SOCKET) && (socket_errno == EINVAL))
      {
        kill_server(SIGTERM);
      }
#endif
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5078 5079
      if (new_sock != INVALID_SOCKET ||
	  (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN))
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5080
	break;
unknown's avatar
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5081
      MAYBE_BROKEN_SYSCALL;
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5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093
#if !defined(NO_FCNTL_NONBLOCK)
      if (!(test_flags & TEST_BLOCKING))
      {
	if (retry == MAX_ACCEPT_RETRY - 1)
	  fcntl(sock, F_SETFL, flags);		// Try without O_NONBLOCK
      }
#endif
    }
#if !defined(NO_FCNTL_NONBLOCK)
    if (!(test_flags & TEST_BLOCKING))
      fcntl(sock, F_SETFL, flags);
#endif
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5094
    if (new_sock == INVALID_SOCKET)
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5095 5096 5097
    {
      if ((error_count++ & 255) == 0)		// This can happen often
	sql_perror("Error in accept");
unknown's avatar
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5098
      MAYBE_BROKEN_SYSCALL;
unknown's avatar
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5099
      if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE)
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5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110
	sleep(1);				// Give other threads some time
      continue;
    }

#ifdef HAVE_LIBWRAP
    {
      if (sock == ip_sock)
      {
	struct request_info req;
	signal(SIGCHLD, SIG_DFL);
	request_init(&req, RQ_DAEMON, libwrapName, RQ_FILE, new_sock, NULL);
5111 5112
	my_fromhost(&req);
	if (!my_hosts_access(&req))
unknown's avatar
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5113
	{
unknown's avatar
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5114 5115 5116 5117 5118
	  /*
	    This may be stupid but refuse() includes an exit(0)
	    which we surely don't want...
	    clean_exit() - same stupid thing ...
	  */
5119
	  syslog(deny_severity, "refused connect from %s",
5120
		 my_eval_client(&req));
unknown's avatar
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5121

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5122 5123 5124 5125 5126 5127
	  /*
	    C++ sucks (the gibberish in front just translates the supplied
	    sink function pointer in the req structure from a void (*sink)();
	    to a void(*sink)(int) if you omit the cast, the C++ compiler
	    will cry...
	  */
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5128 5129 5130
	  if (req.sink)
	    ((void (*)(int))req.sink)(req.fd);

5131
	  (void) shutdown(new_sock, SHUT_RDWR);
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5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145
	  (void) closesocket(new_sock);
	  continue;
	}
      }
    }
#endif /* HAVE_LIBWRAP */

    {
      size_socket dummyLen;
      struct sockaddr dummy;
      dummyLen = sizeof(struct sockaddr);
      if (getsockname(new_sock,&dummy, &dummyLen) < 0)
      {
	sql_perror("Error on new connection socket");
5146
	(void) shutdown(new_sock, SHUT_RDWR);
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5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157
	(void) closesocket(new_sock);
	continue;
      }
    }

    /*
    ** Don't allow too many connections
    */

    if (!(thd= new THD))
    {
5158
      (void) shutdown(new_sock, SHUT_RDWR);
unknown's avatar
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5159
      VOID(closesocket(new_sock));
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5160 5161 5162
      continue;
    }
    if (!(vio_tmp=vio_new(new_sock,
5163
			  sock == unix_sock ? VIO_TYPE_SOCKET :
unknown's avatar
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5164
			  VIO_TYPE_TCPIP,
5165
			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
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5166 5167
	my_net_init(&thd->net,vio_tmp))
    {
5168 5169 5170 5171 5172 5173 5174
      /*
        Only delete the temporary vio if we didn't already attach it to the
        NET object. The destructor in THD will delete any initialized net
        structure.
      */
      if (vio_tmp && thd->net.vio != vio_tmp)
        vio_delete(vio_tmp);
unknown's avatar
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5175 5176
      else
      {
5177
	(void) shutdown(new_sock, SHUT_RDWR);
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5178 5179 5180 5181 5182 5183
	(void) closesocket(new_sock);
      }
      delete thd;
      continue;
    }
    if (sock == unix_sock)
5184
      thd->security_ctx->host=(char*) my_localhost;
5185

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5186 5187 5188
    create_new_thread(thd);
  }

5189
  decrement_handler_count();
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5190 5191 5192 5193 5194
  DBUG_RETURN(0);
}


#ifdef __NT__
5195
pthread_handler_t handle_connections_namedpipes(void *arg)
unknown's avatar
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5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207
{
  HANDLE hConnectedPipe;
  BOOL fConnected;
  THD *thd;
  my_thread_init();
  DBUG_ENTER("handle_connections_namedpipes");
  (void) my_pthread_getprio(pthread_self());		// For debugging

  DBUG_PRINT("general",("Waiting for named pipe connections."));
  while (!abort_loop)
  {
    /* wait for named pipe connection */
unknown's avatar
Merge  
unknown committed
5208
    fConnected = ConnectNamedPipe(hPipe, NULL);
unknown's avatar
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5209 5210
    if (abort_loop)
      break;
unknown's avatar
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5211
    if (!fConnected)
unknown's avatar
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5212
      fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
unknown's avatar
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5213
    if (!fConnected)
unknown's avatar
unknown committed
5214
    {
unknown's avatar
Merge  
unknown committed
5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228
      CloseHandle(hPipe);
      if ((hPipe= CreateNamedPipe(pipe_name,
                                  PIPE_ACCESS_DUPLEX,
                                  PIPE_TYPE_BYTE |
                                  PIPE_READMODE_BYTE |
                                  PIPE_WAIT,
                                  PIPE_UNLIMITED_INSTANCES,
                                  (int) global_system_variables.
                                  net_buffer_length,
                                  (int) global_system_variables.
                                  net_buffer_length,
                                  NMPWAIT_USE_DEFAULT_WAIT,
                                  &saPipeSecurity)) ==
	  INVALID_HANDLE_VALUE)
unknown's avatar
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5229 5230 5231 5232 5233 5234 5235
      {
	sql_perror("Can't create new named pipe!");
	break;					// Abort
      }
    }
    hConnectedPipe = hPipe;
    /* create new pipe for new connection */
5236
    if ((hPipe = CreateNamedPipe(pipe_name,
unknown's avatar
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5237 5238 5239 5240 5241
				 PIPE_ACCESS_DUPLEX,
				 PIPE_TYPE_BYTE |
				 PIPE_READMODE_BYTE |
				 PIPE_WAIT,
				 PIPE_UNLIMITED_INSTANCES,
5242 5243
				 (int) global_system_variables.net_buffer_length,
				 (int) global_system_variables.net_buffer_length,
unknown's avatar
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5244 5245 5246 5247 5248 5249 5250 5251 5252
				 NMPWAIT_USE_DEFAULT_WAIT,
				 &saPipeSecurity)) ==
	INVALID_HANDLE_VALUE)
    {
      sql_perror("Can't create new named pipe!");
      hPipe=hConnectedPipe;
      continue;					// We have to try again
    }

unknown's avatar
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5253
    if (!(thd = new THD))
unknown's avatar
unknown committed
5254
    {
unknown's avatar
Merge  
unknown committed
5255 5256
      DisconnectNamedPipe(hConnectedPipe);
      CloseHandle(hConnectedPipe);
unknown's avatar
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5257 5258 5259 5260 5261
      continue;
    }
    if (!(thd->net.vio = vio_new_win32pipe(hConnectedPipe)) ||
	my_net_init(&thd->net, thd->net.vio))
    {
5262
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
unknown's avatar
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5263 5264 5265
      delete thd;
      continue;
    }
5266 5267
    /* Host is unknown */
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0));
unknown's avatar
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5268 5269 5270
    create_new_thread(thd);
  }

5271
  decrement_handler_count();
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5272 5273 5274 5275
  DBUG_RETURN(0);
}
#endif /* __NT__ */

5276

unknown's avatar
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5277
#ifdef HAVE_SMEM
5278

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5279 5280
/**
  Thread of shared memory's service.
5281

unknown's avatar
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5282 5283
  @param arg                              Arguments of thread
*/
5284
pthread_handler_t handle_connections_shared_memory(void *arg)
5285
{
5286 5287
  /* file-mapping object, use for create shared memory */
  HANDLE handle_connect_file_map= 0;
5288
  char  *handle_connect_map= 0;                 // pointer on shared memory
5289 5290 5291
  HANDLE event_connect_answer= 0;
  ulong smem_buffer_length= shared_memory_buffer_length + 4;
  ulong connect_number= 1;
5292
  char *tmp= NULL;
5293 5294
  char *suffix_pos;
  char connect_number_char[22], *p;
5295
  const char *errmsg= 0;
5296
  SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0;
5297 5298 5299 5300
  my_thread_init();
  DBUG_ENTER("handle_connections_shared_memorys");
  DBUG_PRINT("general",("Waiting for allocated shared memory."));

5301 5302 5303 5304 5305 5306
  /*
     get enough space base-name + '_' + longest suffix we might ever send
   */
  if (!(tmp= (char *)my_malloc(strlen(shared_memory_base_name) + 32L, MYF(MY_FAE))))
    goto error;

5307 5308 5309 5310 5311 5312 5313 5314
  if (my_security_attr_create(&sa_event, &errmsg,
                              GENERIC_ALL, SYNCHRONIZE | EVENT_MODIFY_STATE))
    goto error;

  if (my_security_attr_create(&sa_mapping, &errmsg,
                             GENERIC_ALL, FILE_MAP_READ | FILE_MAP_WRITE))
    goto error;

5315 5316 5317 5318 5319 5320 5321
  /*
    The name of event and file-mapping events create agree next rule:
      shared_memory_base_name+unique_part
    Where:
      shared_memory_base_name is unique value for each server
      unique_part is unique value for each object (events and file-mapping)
  */
5322
  suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS);
5323
  strmov(suffix_pos, "CONNECT_REQUEST");
5324 5325
  if ((smem_event_connect_request= CreateEvent(sa_event,
                                               FALSE, FALSE, tmp)) == 0)
5326
  {
5327
    errmsg= "Could not create request event";
5328 5329
    goto error;
  }
5330
  strmov(suffix_pos, "CONNECT_ANSWER");
5331
  if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5332
  {
5333
    errmsg="Could not create answer event";
5334 5335
    goto error;
  }
5336
  strmov(suffix_pos, "CONNECT_DATA");
5337 5338 5339
  if ((handle_connect_file_map=
       CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                         PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0)
5340
  {
5341
    errmsg= "Could not create file mapping";
5342 5343
    goto error;
  }
5344 5345 5346
  if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map,
						  FILE_MAP_WRITE,0,0,
						  sizeof(DWORD))) == 0)
5347
  {
5348
    errmsg= "Could not create shared memory service";
5349 5350 5351 5352 5353
    goto error;
  }

  while (!abort_loop)
  {
5354
    /* Wait a request from client */
5355
    WaitForSingleObject(smem_event_connect_request,INFINITE);
5356

unknown's avatar
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5357 5358 5359
    /*
       it can be after shutdown command
    */
unknown's avatar
Merge  
unknown committed
5360
    if (abort_loop)
unknown's avatar
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5361
      goto error;
5362

5363 5364 5365 5366 5367 5368
    HANDLE handle_client_file_map= 0;
    char  *handle_client_map= 0;
    HANDLE event_client_wrote= 0;
    HANDLE event_client_read= 0;    // for transfer data server <-> client
    HANDLE event_server_wrote= 0;
    HANDLE event_server_read= 0;
unknown's avatar
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5369
    HANDLE event_conn_closed= 0;
5370
    THD *thd= 0;
5371

5372
    p= int10_to_str(connect_number, connect_number_char, 10);
5373 5374 5375 5376 5377 5378 5379 5380 5381 5382
    /*
      The name of event and file-mapping events create agree next rule:
        shared_memory_base_name+unique_part+number_of_connection
        Where:
	  shared_memory_base_name is uniquel value for each server
	  unique_part is unique value for each object (events and file-mapping)
	  number_of_connection is connection-number between server and client
    */
    suffix_pos= strxmov(tmp,shared_memory_base_name,"_",connect_number_char,
			 "_",NullS);
5383
    strmov(suffix_pos, "DATA");
5384 5385 5386
    if ((handle_client_file_map=
         CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                           PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0)
5387
    {
5388
      errmsg= "Could not create file mapping";
5389 5390
      goto errorconn;
    }
5391 5392 5393
    if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map,
						  FILE_MAP_WRITE,0,0,
						  smem_buffer_length)) == 0)
5394
    {
5395
      errmsg= "Could not create memory map";
5396 5397 5398
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_WROTE");
5399
    if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5400
    {
5401
      errmsg= "Could not create client write event";
5402 5403 5404
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_READ");
5405
    if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5406
    {
5407
      errmsg= "Could not create client read event";
5408 5409 5410
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_READ");
5411
    if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5412
    {
5413
      errmsg= "Could not create server read event";
5414 5415 5416
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_WROTE");
5417 5418
    if ((event_server_wrote= CreateEvent(sa_event,
                                         FALSE, FALSE, tmp)) == 0)
5419
    {
5420
      errmsg= "Could not create server write event";
5421 5422
      goto errorconn;
    }
unknown's avatar
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5423
    strmov(suffix_pos, "CONNECTION_CLOSED");
5424 5425
    if ((event_conn_closed= CreateEvent(sa_event,
                                        TRUE, FALSE, tmp)) == 0)
unknown's avatar
unknown committed
5426 5427 5428 5429
    {
      errmsg= "Could not create closed connection event";
      goto errorconn;
    }
5430
    if (abort_loop)
5431
      goto errorconn;
5432 5433 5434
    if (!(thd= new THD))
      goto errorconn;
    /* Send number of connection to client */
5435
    int4store(handle_connect_map, connect_number);
5436
    if (!SetEvent(event_connect_answer))
5437
    {
5438
      errmsg= "Could not send answer event";
5439 5440
      goto errorconn;
    }
5441
    /* Set event that client should receive data */
5442 5443
    if (!SetEvent(event_client_read))
    {
5444
      errmsg= "Could not set client to read mode";
5445 5446
      goto errorconn;
    }
5447
    if (!(thd->net.vio= vio_new_win32shared_memory(&thd->net,
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unknown committed
5448 5449 5450 5451 5452 5453
                                                   handle_client_file_map,
                                                   handle_client_map,
                                                   event_client_wrote,
                                                   event_client_read,
                                                   event_server_wrote,
                                                   event_server_read,
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5454
                                                   event_conn_closed)) ||
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5455
                        my_net_init(&thd->net, thd->net.vio))
5456
    {
5457
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
5458 5459
      errmsg= 0;
      goto errorconn;
5460
    }
5461
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */
5462
    create_new_thread(thd);
5463 5464 5465 5466 5467 5468 5469 5470 5471 5472 5473 5474
    connect_number++;
    continue;

errorconn:
    /* Could not form connection;  Free used handlers/memort and retry */
    if (errmsg)
    {
      char buff[180];
      strxmov(buff, "Can't create shared memory connection: ", errmsg, ".",
	      NullS);
      sql_perror(buff);
    }
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5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488
    if (handle_client_file_map) 
      CloseHandle(handle_client_file_map);
    if (handle_client_map)
      UnmapViewOfFile(handle_client_map);
    if (event_server_wrote)
      CloseHandle(event_server_wrote);
    if (event_server_read)
      CloseHandle(event_server_read);
    if (event_client_wrote)
      CloseHandle(event_client_wrote);
    if (event_client_read)
      CloseHandle(event_client_read);
    if (event_conn_closed)
      CloseHandle(event_conn_closed);
5489
    delete thd;
5490
  }
5491 5492

  /* End shared memory handling */
5493
error:
5494 5495 5496
  if (tmp)
    my_free(tmp, MYF(0));

5497 5498 5499 5500 5501 5502
  if (errmsg)
  {
    char buff[180];
    strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS);
    sql_perror(buff);
  }
5503 5504
  my_security_attr_free(sa_event);
  my_security_attr_free(sa_mapping);
5505 5506 5507
  if (handle_connect_map)	UnmapViewOfFile(handle_connect_map);
  if (handle_connect_file_map)	CloseHandle(handle_connect_file_map);
  if (event_connect_answer)	CloseHandle(event_connect_answer);
5508
  if (smem_event_connect_request) CloseHandle(smem_event_connect_request);
5509 5510

  decrement_handler_count();
5511 5512 5513
  DBUG_RETURN(0);
}
#endif /* HAVE_SMEM */
5514
#endif /* EMBEDDED_LIBRARY */
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5515

5516 5517 5518

/****************************************************************************
  Handle start options
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5519 5520
******************************************************************************/

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5521
enum options_mysqld
5522
{
5523 5524 5525
  OPT_ISAM_LOG=256,            OPT_SKIP_NEW, 
  OPT_SKIP_GRANT,              OPT_SKIP_LOCK, 
  OPT_ENABLE_LOCK,             OPT_USE_LOCKING,
5526 5527
  OPT_SOCKET,                  OPT_UPDATE_LOG,
  OPT_BIN_LOG,                 OPT_SKIP_RESOLVE,
5528 5529
  OPT_SKIP_NETWORKING,         OPT_BIN_LOG_INDEX,
  OPT_BIND_ADDRESS,            OPT_PID_FILE,
5530
  OPT_SKIP_PRIOR,              OPT_BIG_TABLES,
5531 5532
  OPT_STANDALONE,              OPT_ONE_THREAD,
  OPT_CONSOLE,                 OPT_LOW_PRIORITY_UPDATES,
5533
  OPT_SKIP_HOST_CACHE,         OPT_SHORT_LOG_FORMAT,
5534
  OPT_FLUSH,                   OPT_SAFE,
5535
  OPT_BOOTSTRAP,               OPT_SKIP_SHOW_DB,
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5536
  OPT_STORAGE_ENGINE,          OPT_INIT_FILE,
5537
  OPT_DELAY_KEY_WRITE_ALL,     OPT_SLOW_QUERY_LOG,
5538
  OPT_DELAY_KEY_WRITE,	       OPT_CHARSETS_DIR,
5539 5540 5541
  OPT_MASTER_HOST,             OPT_MASTER_USER,
  OPT_MASTER_PASSWORD,         OPT_MASTER_PORT,
  OPT_MASTER_INFO_FILE,        OPT_MASTER_CONNECT_RETRY,
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Merge  
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5542
  OPT_MASTER_RETRY_COUNT,      OPT_LOG_TC, OPT_LOG_TC_SIZE,
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5543 5544
  OPT_MASTER_SSL,              OPT_MASTER_SSL_KEY,
  OPT_MASTER_SSL_CERT,         OPT_MASTER_SSL_CAPATH,
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unknown committed
5545
  OPT_MASTER_SSL_CIPHER,       OPT_MASTER_SSL_CA,
5546
  OPT_SQL_BIN_UPDATE_SAME,     OPT_REPLICATE_DO_DB,
5547 5548
  OPT_REPLICATE_IGNORE_DB,     OPT_LOG_SLAVE_UPDATES,
  OPT_BINLOG_DO_DB,            OPT_BINLOG_IGNORE_DB,
5549 5550 5551 5552 5553
  OPT_BINLOG_FORMAT,
#ifndef DBUG_OFF
  OPT_BINLOG_SHOW_XID,
#endif
  OPT_BINLOG_ROWS_EVENT_MAX_SIZE, 
5554 5555
  OPT_WANT_CORE,               OPT_CONCURRENT_INSERT,
  OPT_MEMLOCK,                 OPT_MYISAM_RECOVER,
5556
  OPT_REPLICATE_REWRITE_DB,    OPT_SERVER_ID,
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5557
  OPT_SKIP_SLAVE_START,        OPT_SAFE_SHOW_DB, 
5558 5559
  OPT_SAFEMALLOC_MEM_LIMIT,    OPT_REPLICATE_DO_TABLE,
  OPT_REPLICATE_IGNORE_TABLE,  OPT_REPLICATE_WILD_DO_TABLE,
5560
  OPT_REPLICATE_WILD_IGNORE_TABLE, OPT_REPLICATE_SAME_SERVER_ID,
unknown's avatar
Merge  
unknown committed
5561
  OPT_DISCONNECT_SLAVE_EVENT_COUNT, OPT_TC_HEURISTIC_RECOVER,
5562
  OPT_ABORT_SLAVE_EVENT_COUNT,
5563
  OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
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unknown committed
5564
  OPT_ENGINE_CONDITION_PUSHDOWN, OPT_NDB_CONNECTSTRING, 
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unknown committed
5565
  OPT_NDB_USE_EXACT_COUNT, OPT_NDB_USE_TRANSACTIONS,
5566
  OPT_NDB_FORCE_SEND, OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
unknown's avatar
Merge  
unknown committed
5567 5568
  OPT_NDB_SHM, OPT_NDB_OPTIMIZED_NODE_SELECTION, OPT_NDB_CACHE_CHECK_TIME,
  OPT_NDB_MGMD, OPT_NDB_NODEID,
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5569
  OPT_NDB_DISTRIBUTION,
5570
  OPT_NDB_INDEX_STAT_ENABLE,
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5571 5572 5573
  OPT_NDB_EXTRA_LOGGING,
  OPT_NDB_REPORT_THRESH_BINLOG_EPOCH_SLIP,
  OPT_NDB_REPORT_THRESH_BINLOG_MEM_USAGE,
5574
  OPT_NDB_USE_COPYING_ALTER_TABLE,
5575
  OPT_SKIP_SAFEMALLOC,
unknown's avatar
Merge  
unknown committed
5576
  OPT_TEMP_POOL, OPT_TX_ISOLATION, OPT_COMPLETION_TYPE,
5577 5578 5579 5580
  OPT_SKIP_STACK_TRACE, OPT_SKIP_SYMLINKS,
  OPT_MAX_BINLOG_DUMP_EVENTS, OPT_SPORADIC_BINLOG_DUMP_FAIL,
  OPT_SAFE_USER_CREATE, OPT_SQL_MODE,
  OPT_HAVE_NAMED_PIPE,
5581
  OPT_DO_PSTACK, OPT_EVENT_SCHEDULER, OPT_REPORT_HOST,
5582
  OPT_REPORT_USER, OPT_REPORT_PASSWORD, OPT_REPORT_PORT,
5583
  OPT_SHOW_SLAVE_AUTH_INFO,
5584 5585 5586 5587 5588 5589 5590 5591 5592
  OPT_SLAVE_LOAD_TMPDIR, OPT_NO_MIX_TYPE,
  OPT_RPL_RECOVERY_RANK,OPT_INIT_RPL_ROLE,
  OPT_RELAY_LOG, OPT_RELAY_LOG_INDEX, OPT_RELAY_LOG_INFO_FILE,
  OPT_SLAVE_SKIP_ERRORS, OPT_DES_KEY_FILE, OPT_LOCAL_INFILE,
  OPT_SSL_SSL, OPT_SSL_KEY, OPT_SSL_CERT, OPT_SSL_CA,
  OPT_SSL_CAPATH, OPT_SSL_CIPHER,
  OPT_BACK_LOG, OPT_BINLOG_CACHE_SIZE,
  OPT_CONNECT_TIMEOUT, OPT_DELAYED_INSERT_TIMEOUT,
  OPT_DELAYED_INSERT_LIMIT, OPT_DELAYED_QUEUE_SIZE,
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5593
  OPT_FLUSH_TIME, OPT_FT_MIN_WORD_LEN, OPT_FT_BOOLEAN_SYNTAX,
5594
  OPT_FT_MAX_WORD_LEN, OPT_FT_QUERY_EXPANSION_LIMIT, OPT_FT_STOPWORD_FILE,
5595
  OPT_INTERACTIVE_TIMEOUT, OPT_JOIN_BUFF_SIZE,
5596 5597 5598
  OPT_KEY_BUFFER_SIZE, OPT_KEY_CACHE_BLOCK_SIZE,
  OPT_KEY_CACHE_DIVISION_LIMIT, OPT_KEY_CACHE_AGE_THRESHOLD,
  OPT_LONG_QUERY_TIME,
5599 5600 5601 5602
  OPT_LOWER_CASE_TABLE_NAMES, OPT_MAX_ALLOWED_PACKET,
  OPT_MAX_BINLOG_CACHE_SIZE, OPT_MAX_BINLOG_SIZE,
  OPT_MAX_CONNECTIONS, OPT_MAX_CONNECT_ERRORS,
  OPT_MAX_DELAYED_THREADS, OPT_MAX_HEP_TABLE_SIZE,
5603 5604
  OPT_MAX_JOIN_SIZE, OPT_MAX_PREPARED_STMT_COUNT,
  OPT_MAX_RELAY_LOG_SIZE, OPT_MAX_SORT_LENGTH,
5605
  OPT_MAX_SEEKS_FOR_KEY, OPT_MAX_TMP_TABLES, OPT_MAX_USER_CONNECTIONS,
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unknown committed
5606
  OPT_MAX_LENGTH_FOR_SORT_DATA,
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unknown committed
5607
  OPT_MAX_WRITE_LOCK_COUNT, OPT_BULK_INSERT_BUFFER_SIZE,
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Merge  
unknown committed
5608
  OPT_MAX_ERROR_COUNT, OPT_MULTI_RANGE_COUNT, OPT_MYISAM_DATA_POINTER_SIZE,
5609 5610
  OPT_MYISAM_BLOCK_SIZE, OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
  OPT_MYISAM_MAX_SORT_FILE_SIZE, OPT_MYISAM_SORT_BUFFER_SIZE,
5611
  OPT_MYISAM_USE_MMAP, OPT_MYISAM_REPAIR_THREADS,
5612
  OPT_MYISAM_STATS_METHOD,
5613 5614
  OPT_NET_BUFFER_LENGTH, OPT_NET_RETRY_COUNT,
  OPT_NET_READ_TIMEOUT, OPT_NET_WRITE_TIMEOUT,
5615
  OPT_OPEN_FILES_LIMIT,
unknown's avatar
unknown committed
5616
  OPT_PRELOAD_BUFFER_SIZE,
5617
  OPT_QUERY_CACHE_LIMIT, OPT_QUERY_CACHE_MIN_RES_UNIT, OPT_QUERY_CACHE_SIZE,
5618
  OPT_QUERY_CACHE_TYPE, OPT_QUERY_CACHE_WLOCK_INVALIDATE, OPT_RECORD_BUFFER,
unknown's avatar
unknown committed
5619 5620
  OPT_RECORD_RND_BUFFER, OPT_DIV_PRECINCREMENT, OPT_RELAY_LOG_SPACE_LIMIT,
  OPT_RELAY_LOG_PURGE,
5621
  OPT_RELAY_LOG_RECOVERY,
5622
  OPT_SLAVE_NET_TIMEOUT, OPT_SLAVE_COMPRESSED_PROTOCOL, OPT_SLOW_LAUNCH_TIME,
5623
  OPT_SLAVE_TRANS_RETRIES, OPT_READONLY, OPT_DEBUGGING,
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unknown committed
5624
  OPT_SORT_BUFFER, OPT_TABLE_OPEN_CACHE, OPT_TABLE_DEF_CACHE,
5625 5626
  OPT_THREAD_CONCURRENCY, OPT_THREAD_CACHE_SIZE,
  OPT_TMP_TABLE_SIZE, OPT_THREAD_STACK,
5627
  OPT_WAIT_TIMEOUT,
unknown's avatar
merge  
unknown committed
5628
  OPT_ERROR_LOG_FILE,
5629
  OPT_DEFAULT_WEEK_FORMAT,
5630
  OPT_RANGE_ALLOC_BLOCK_SIZE, OPT_ALLOW_SUSPICIOUS_UDFS,
5631
  OPT_QUERY_ALLOC_BLOCK_SIZE, OPT_QUERY_PREALLOC_SIZE,
5632
  OPT_TRANS_ALLOC_BLOCK_SIZE, OPT_TRANS_PREALLOC_SIZE,
5633 5634 5635 5636
  OPT_SYNC_FRM, OPT_SYNC_BINLOG,
  OPT_SYNC_REPLICATION,
  OPT_SYNC_REPLICATION_SLAVE_ID,
  OPT_SYNC_REPLICATION_TIMEOUT,
5637
  OPT_ENABLE_SHARED_MEMORY,
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unknown committed
5638
  OPT_SHARED_MEMORY_BASE_NAME,
5639
  OPT_OLD_PASSWORDS,
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unknown committed
5640
  OPT_OLD_ALTER_TABLE,
unknown's avatar
unknown committed
5641
  OPT_EXPIRE_LOGS_DAYS,
5642
  OPT_GROUP_CONCAT_MAX_LEN,
5643
  OPT_DEFAULT_COLLATION,
5644
  OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
unknown's avatar
unknown committed
5645
  OPT_CHARACTER_SET_FILESYSTEM,
5646
  OPT_LC_TIME_NAMES,
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unknown committed
5647
  OPT_INIT_CONNECT,
unknown's avatar
unknown committed
5648
  OPT_INIT_SLAVE,
5649
  OPT_SECURE_AUTH,
5650 5651
  OPT_DATE_FORMAT,
  OPT_TIME_FORMAT,
unknown's avatar
unknown committed
5652
  OPT_DATETIME_FORMAT,
5653
  OPT_LOG_QUERIES_NOT_USING_INDEXES,
unknown's avatar
Merge  
unknown committed
5654
  OPT_DEFAULT_TIME_ZONE,
5655
  OPT_SYSDATE_IS_NOW,
unknown's avatar
Merge  
unknown committed
5656 5657
  OPT_OPTIMIZER_SEARCH_DEPTH,
  OPT_OPTIMIZER_PRUNE_LEVEL,
5658
  OPT_OPTIMIZER_SWITCH,
unknown's avatar
Merge  
unknown committed
5659 5660
  OPT_UPDATABLE_VIEWS_WITH_LIMIT,
  OPT_SP_AUTOMATIC_PRIVILEGES,
5661
  OPT_MAX_SP_RECURSION_DEPTH,
unknown's avatar
Merge  
unknown committed
5662 5663 5664
  OPT_AUTO_INCREMENT, OPT_AUTO_INCREMENT_OFFSET,
  OPT_ENABLE_LARGE_PAGES,
  OPT_TIMED_MUTEXES,
unknown's avatar
unknown committed
5665
  OPT_OLD_STYLE_USER_LIMITS,
5666
  OPT_LOG_SLOW_ADMIN_STATEMENTS,
5667
  OPT_TABLE_LOCK_WAIT_TIMEOUT,
unknown's avatar
unknown committed
5668
  OPT_PLUGIN_LOAD,
5669
  OPT_PLUGIN_DIR,
5670
  OPT_LOG_OUTPUT,
5671
  OPT_PORT_OPEN_TIMEOUT,
5672
  OPT_PROFILING,
unknown's avatar
unknown committed
5673
  OPT_KEEP_FILES_ON_CREATE,
5674
  OPT_GENERAL_LOG,
5675
  OPT_SLOW_LOG,
unknown's avatar
unknown committed
5676
  OPT_THREAD_HANDLING,
5677
  OPT_INNODB_ROLLBACK_ON_TIMEOUT,
5678
  OPT_SECURE_FILE_PRIV,
5679 5680
  OPT_MIN_EXAMINED_ROW_LIMIT,
  OPT_LOG_SLOW_SLAVE_STATEMENTS,
5681
  OPT_OLD_MODE,
5682 5683
  OPT_SLAVE_EXEC_MODE,
  OPT_GENERAL_LOG_FILE,
5684
  OPT_SLOW_QUERY_LOG_FILE,
5685
  OPT_IGNORE_BUILTIN_INNODB,
5686 5687 5688
  OPT_SYNC_RELAY_LOG,
  OPT_SYNC_RELAY_LOG_INFO,
  OPT_SYNC_MASTER_INFO
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unknown committed
5689
};
5690

5691 5692 5693

#define LONG_TIMEOUT ((ulong) 3600L*24L*365L)

unknown's avatar
unknown committed
5694
struct my_option my_long_options[] =
5695
{
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unknown committed
5696
  {"help", '?', "Display this help and exit.", 
5697
   (uchar**) &opt_help, (uchar**) &opt_help, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
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unknown committed
5698 5699 5700 5701
   0, 0},
#ifdef HAVE_REPLICATION
  {"abort-slave-event-count", OPT_ABORT_SLAVE_EVENT_COUNT,
   "Option used by mysql-test for debugging and testing of replication.",
5702
   (uchar**) &abort_slave_event_count,  (uchar**) &abort_slave_event_count,
unknown's avatar
unknown committed
5703 5704
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif /* HAVE_REPLICATION */
5705
  {"allow-suspicious-udfs", OPT_ALLOW_SUSPICIOUS_UDFS,
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unknown committed
5706 5707
   "Allows use of UDFs consisting of only one symbol xxx() "
   "without corresponding xxx_init() or xxx_deinit(). That also means "
5708 5709
   "that one can load any function from any library, for example exit() "
   "from libc.so",
5710
   (uchar**) &opt_allow_suspicious_udfs, (uchar**) &opt_allow_suspicious_udfs,
5711
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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5712 5713
  {"ansi", 'a', "Use ANSI SQL syntax instead of MySQL syntax. This mode will also set transaction isolation level 'serializable'.", 0, 0, 0,
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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Merge  
unknown committed
5714 5715
  {"auto-increment-increment", OPT_AUTO_INCREMENT,
   "Auto-increment columns are incremented by this",
5716 5717
   (uchar**) &global_system_variables.auto_increment_increment,
   (uchar**) &max_system_variables.auto_increment_increment, 0, GET_ULONG,
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Merge  
unknown committed
5718 5719 5720
   OPT_ARG, 1, 1, 65535, 0, 1, 0 },
  {"auto-increment-offset", OPT_AUTO_INCREMENT_OFFSET,
   "Offset added to Auto-increment columns. Used when auto-increment-increment != 1",
5721 5722
   (uchar**) &global_system_variables.auto_increment_offset,
   (uchar**) &max_system_variables.auto_increment_offset, 0, GET_ULONG, OPT_ARG,
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Merge  
unknown committed
5723 5724 5725
   1, 1, 65535, 0, 1, 0 },
  {"automatic-sp-privileges", OPT_SP_AUTOMATIC_PRIVILEGES,
   "Creating and dropping stored procedures alters ACLs. Disable with --skip-automatic-sp-privileges.",
5726
   (uchar**) &sp_automatic_privileges, (uchar**) &sp_automatic_privileges,
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Merge  
unknown committed
5727
   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
5728 5729
  {"basedir", 'b',
   "Path to installation directory. All paths are usually resolved relative to this.",
5730
   (uchar**) &mysql_home_ptr, (uchar**) &mysql_home_ptr, 0, GET_STR, REQUIRED_ARG,
5731
   0, 0, 0, 0, 0, 0},
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unknown committed
5732
  {"big-tables", OPT_BIG_TABLES,
5733
   "Allow big result sets by saving all temporary sets on file (Solves most 'table full' errors).",
5734
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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unknown committed
5735
  {"bind-address", OPT_BIND_ADDRESS, "IP address to bind to.",
5736
   (uchar**) &my_bind_addr_str, (uchar**) &my_bind_addr_str, 0, GET_STR,
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unknown committed
5737
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5738
  {"binlog_format", OPT_BINLOG_FORMAT,
5739
   "Does not have any effect without '--log-bin'. "
5740
   "Tell the master the form of binary logging to use: either 'row' for "
5741 5742 5743 5744 5745
   "row-based binary logging, or 'statement' for statement-based binary "
   "logging, or 'mixed'. 'mixed' is statement-based binary logging except "
   "for those statements where only row-based is correct: those which "
   "involve user-defined functions (i.e. UDFs) or the UUID() function; for "
   "those, row-based binary logging is automatically used. "
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unknown committed
5746
#ifdef HAVE_NDB_BINLOG
5747 5748
   "If ndbcluster is enabled and binlog_format is `mixed', the format switches"
   " to 'row' and back implicitly per each query accessing a NDB table."
5749
#endif
5750
   ,(uchar**) &opt_binlog_format, (uchar**) &opt_binlog_format,
5751
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5752 5753 5754
  {"binlog-do-db", OPT_BINLOG_DO_DB,
   "Tells the master it should log updates for the specified database, and exclude all others not explicitly mentioned.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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unknown committed
5755
  {"binlog-ignore-db", OPT_BINLOG_IGNORE_DB,
5756
   "Tells the master that updates to the given database should not be logged tothe binary log.",
5757
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5758 5759 5760 5761
  {"binlog-row-event-max-size", OPT_BINLOG_ROWS_EVENT_MAX_SIZE,
   "The maximum size of a row-based binary log event in bytes. Rows will be "
   "grouped into events smaller than this size if possible. "
   "The value has to be a multiple of 256.",
5762 5763
   (uchar**) &opt_binlog_rows_event_max_size, 
   (uchar**) &opt_binlog_rows_event_max_size, 0, 
5764 5765 5766 5767 5768
   GET_ULONG, REQUIRED_ARG, 
   /* def_value */ 1024, /* min_value */  256, /* max_value */ ULONG_MAX, 
   /* sub_size */     0, /* block_size */ 256, 
   /* app_type */ 0
  },
5769
#ifndef DISABLE_GRANT_OPTIONS
5770
  {"bootstrap", OPT_BOOTSTRAP, "Used by mysql installation scripts.", 0, 0, 0,
5771
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5772
#endif
5773
  {"character-set-client-handshake", OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
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unknown committed
5774
   "Don't ignore client side character set value sent during handshake.",
5775 5776
   (uchar**) &opt_character_set_client_handshake,
   (uchar**) &opt_character_set_client_handshake,
5777
    0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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unknown committed
5778 5779
  {"character-set-filesystem", OPT_CHARACTER_SET_FILESYSTEM,
   "Set the filesystem character set.",
5780 5781
   (uchar**) &character_set_filesystem_name,
   (uchar**) &character_set_filesystem_name,
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5782
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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5783
  {"character-set-server", 'C', "Set the default character set.",
5784
   (uchar**) &default_character_set_name, (uchar**) &default_character_set_name,
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5785
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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5786
  {"character-sets-dir", OPT_CHARSETS_DIR,
5787 5788
   "Directory where character sets are.", (uchar**) &charsets_dir,
   (uchar**) &charsets_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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5789
  {"chroot", 'r', "Chroot mysqld daemon during startup.",
5790
   (uchar**) &mysqld_chroot, (uchar**) &mysqld_chroot, 0, GET_STR, REQUIRED_ARG,
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   0, 0, 0, 0, 0, 0},
  {"collation-server", OPT_DEFAULT_COLLATION, "Set the default collation.",
5793
   (uchar**) &default_collation_name, (uchar**) &default_collation_name,
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5794
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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5795
  {"completion-type", OPT_COMPLETION_TYPE, "Default completion type.",
5796 5797
   (uchar**) &global_system_variables.completion_type,
   (uchar**) &max_system_variables.completion_type, 0, GET_ULONG,
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5798
   REQUIRED_ARG, 0, 0, 2, 0, 1, 0},
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5799
  {"concurrent-insert", OPT_CONCURRENT_INSERT,
5800
   "Use concurrent insert with MyISAM. Disable with --concurrent-insert=0",
5801
   (uchar**) &myisam_concurrent_insert, (uchar**) &myisam_concurrent_insert,
5802
   0, GET_ULONG, OPT_ARG, 1, 0, 2, 0, 0, 0},
5803
  {"console", OPT_CONSOLE, "Write error output on screen; Don't remove the console window on windows.",
5804
   (uchar**) &opt_console, (uchar**) &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0,
5805
   0, 0, 0},
5806
  {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG,
5807
   NO_ARG, 0, 0, 0, 0, 0, 0},
5808 5809
  {"datadir", 'h', "Path to the database root.", (uchar**) &mysql_data_home,
   (uchar**) &mysql_data_home, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5810
#ifndef DBUG_OFF
5811 5812
  {"debug", '#', "Debug log.", (uchar**) &default_dbug_option,
   (uchar**) &default_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
5813
#endif
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5814
  {"default-character-set", 'C', "Set the default character set (deprecated option, use --character-set-server instead).",
5815
   (uchar**) &default_character_set_name, (uchar**) &default_character_set_name,
5816
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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5817
  {"default-collation", OPT_DEFAULT_COLLATION, "Set the default collation (deprecated option, use --collation-server instead).",
5818
   (uchar**) &default_collation_name, (uchar**) &default_collation_name,
5819
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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5820
  {"default-storage-engine", OPT_STORAGE_ENGINE,
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5821
   "Set the default storage engine (table type) for tables.",
5822
   (uchar**)&default_storage_engine_str, (uchar**)&default_storage_engine_str,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"default-table-type", OPT_STORAGE_ENGINE,
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5825
   "(deprecated) Use --default-storage-engine.",
5826
   (uchar**)&default_storage_engine_str, (uchar**)&default_storage_engine_str,
5827
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5828
  {"default-time-zone", OPT_DEFAULT_TIME_ZONE, "Set the default time zone.",
5829
   (uchar**) &default_tz_name, (uchar**) &default_tz_name,
5830
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
5831
  {"delay-key-write", OPT_DELAY_KEY_WRITE, "Type of DELAY_KEY_WRITE.",
5832 5833
   0,0,0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
  {"delay-key-write-for-all-tables", OPT_DELAY_KEY_WRITE_ALL,
5834
   "Don't flush key buffers between writes for any MyISAM table (Deprecated option, use --delay-key-write=all instead).",
5835
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_OPENSSL
  {"des-key-file", OPT_DES_KEY_FILE,
   "Load keys for des_encrypt() and des_encrypt from given file.",
5839
   (uchar**) &des_key_file, (uchar**) &des_key_file, 0, GET_STR, REQUIRED_ARG,
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   0, 0, 0, 0, 0, 0},
#endif /* HAVE_OPENSSL */
#ifdef HAVE_REPLICATION
  {"disconnect-slave-event-count", OPT_DISCONNECT_SLAVE_EVENT_COUNT,
   "Option used by mysql-test for debugging and testing of replication.",
5845 5846
   (uchar**) &disconnect_slave_event_count,
   (uchar**) &disconnect_slave_event_count, 0, GET_INT, REQUIRED_ARG, 0, 0, 0,
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   0, 0, 0},
#endif /* HAVE_REPLICATION */
5849
  {"enable-locking", OPT_ENABLE_LOCK,
5850
   "Deprecated option, use --external-locking instead.",
5851
   (uchar**) &opt_external_locking, (uchar**) &opt_external_locking,
5852
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5853
#ifdef __NT__
5854
  {"enable-named-pipe", OPT_HAVE_NAMED_PIPE, "Enable the named pipe (NT).",
5855
   (uchar**) &opt_enable_named_pipe, (uchar**) &opt_enable_named_pipe, 0, GET_BOOL,
5856 5857
   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
5858
#ifdef HAVE_STACK_TRACE_ON_SEGV
5859
  {"enable-pstack", OPT_DO_PSTACK, "Print a symbolic stack trace on failure.",
5860
   (uchar**) &opt_do_pstack, (uchar**) &opt_do_pstack, 0, GET_BOOL, NO_ARG, 0, 0,
5861
   0, 0, 0, 0},
5862
#endif /* HAVE_STACK_TRACE_ON_SEGV */
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5863 5864 5865
  {"engine-condition-pushdown",
   OPT_ENGINE_CONDITION_PUSHDOWN,
   "Push supported query conditions to the storage engine.",
5866 5867
   (uchar**) &global_system_variables.engine_condition_pushdown,
   (uchar**) &global_system_variables.engine_condition_pushdown,
5868
   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
5869
  /* See how it's handled in get_one_option() */
5870
  {"event-scheduler", OPT_EVENT_SCHEDULER, "Enable/disable the event scheduler.",
5871
   NULL,  NULL, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
5872 5873
  {"exit-info", 'T', "Used for debugging;  Use at your own risk!", 0, 0, 0,
   GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0},
5874
  {"external-locking", OPT_USE_LOCKING, "Use system (external) locking (disabled by default).  With this option enabled you can run myisamchk to test (not repair) tables while the MySQL server is running. Disable with --skip-external-locking.",
5875
   (uchar**) &opt_external_locking, (uchar**) &opt_external_locking,
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5876
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5877
  {"flush", OPT_FLUSH, "Flush tables to disk between SQL commands.", 0, 0, 0,
5878 5879 5880
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  /* We must always support the next option to make scripts like mysqltest
     easier to do */
5881 5882
  {"gdb", OPT_DEBUGGING,
   "Set up signals usable for debugging",
5883
   (uchar**) &opt_debugging, (uchar**) &opt_debugging,
5884
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5885
  {"general_log", OPT_GENERAL_LOG,
5886 5887
   "Enable|disable general log", (uchar**) &opt_log,
   (uchar**) &opt_log, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
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5888 5889 5890
#ifdef HAVE_LARGE_PAGES
  {"large-pages", OPT_ENABLE_LARGE_PAGES, "Enable support for large pages. \
Disable with --skip-large-pages.",
5891
   (uchar**) &opt_large_pages, (uchar**) &opt_large_pages, 0, GET_BOOL, NO_ARG, 0, 0, 0,
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   0, 0, 0},
#endif
5894 5895 5896
  {"ignore-builtin-innodb", OPT_IGNORE_BUILTIN_INNODB ,
   "Disable initialization of builtin InnoDB plugin",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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5897
  {"init-connect", OPT_INIT_CONNECT, "Command(s) that are executed for each new connection",
5898
   (uchar**) &opt_init_connect, (uchar**) &opt_init_connect, 0, GET_STR_ALLOC,
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5899
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5900
#ifndef DISABLE_GRANT_OPTIONS
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5901
  {"init-file", OPT_INIT_FILE, "Read SQL commands from this file at startup.",
5902
   (uchar**) &opt_init_file, (uchar**) &opt_init_file, 0, GET_STR, REQUIRED_ARG,
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5903
   0, 0, 0, 0, 0, 0},
5904
#endif
5905
  {"init-rpl-role", OPT_INIT_RPL_ROLE, "Set the replication role.", 0, 0, 0,
5906
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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5907
  {"init-slave", OPT_INIT_SLAVE, "Command(s) that are executed when a slave connects to this master",
5908
   (uchar**) &opt_init_slave, (uchar**) &opt_init_slave, 0, GET_STR_ALLOC,
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5909
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5910
  {"language", 'L',
5911
   "Client error messages in given language. May be given as a full path.",
5912
   (uchar**) &language_ptr, (uchar**) &language_ptr, 0, GET_STR, REQUIRED_ARG,
5913
   0, 0, 0, 0, 0, 0},
5914 5915
  {"lc-time-names", OPT_LC_TIME_NAMES,
   "Set the language used for the month names and the days of the week.",
5916 5917
   (uchar**) &lc_time_names_name,
   (uchar**) &lc_time_names_name,
5918
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
5919
  {"local-infile", OPT_LOCAL_INFILE,
5920
   "Enable/disable LOAD DATA LOCAL INFILE (takes values 1|0).",
5921 5922
   (uchar**) &opt_local_infile,
   (uchar**) &opt_local_infile, 0, GET_BOOL, OPT_ARG,
5923
   1, 0, 0, 0, 0, 0},
5924 5925
  {"log", 'l', "Log connections and queries to file (deprecated option, use "
   "--general_log/--general_log_file instead).", (uchar**) &opt_logname,
5926
   (uchar**) &opt_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
5927 5928 5929
  {"general_log_file", OPT_GENERAL_LOG_FILE,
   "Log connections and queries to given file.", (uchar**) &opt_logname,
   (uchar**) &opt_logname, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5930
  {"log-bin", OPT_BIN_LOG,
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5931 5932 5933
   "Log update queries in binary format. Optional (but strongly recommended "
   "to avoid replication problems if server's hostname changes) argument "
   "should be the chosen location for the binary log files.",
5934
   (uchar**) &opt_bin_logname, (uchar**) &opt_bin_logname, 0, GET_STR_ALLOC,
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5935
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5936
  {"log-bin-index", OPT_BIN_LOG_INDEX,
5937
   "File that holds the names for last binary log files.",
5938
   (uchar**) &opt_binlog_index_name, (uchar**) &opt_binlog_index_name, 0, GET_STR,
5939
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5940 5941 5942 5943 5944 5945 5946 5947 5948
#ifndef TO_BE_REMOVED_IN_5_1_OR_6_0
  /*
    In 5.0.6 we introduced the below option, then in 5.0.16 we renamed it to
    log-bin-trust-function-creators but kept also the old name for
    compatibility; the behaviour was also changed to apply only to functions
    (and triggers). In a future release this old name could be removed.
  */
  {"log-bin-trust-routine-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
   "(deprecated) Use log-bin-trust-function-creators.",
5949
   (uchar**) &trust_function_creators, (uchar**) &trust_function_creators, 0,
5950 5951
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
5952 5953
  /*
    This option starts with "log-bin" to emphasize that it is specific of
5954
    binary logging.
5955
  */
5956
  {"log-bin-trust-function-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
5957
   "If equal to 0 (the default), then when --log-bin is used, creation of "
5958 5959
   "a stored function (or trigger) is allowed only to users having the SUPER privilege "
   "and only if this stored function (trigger) may not break binary logging."
5960 5961 5962
   "Note that if ALL connections to this server ALWAYS use row-based binary "
   "logging, the security issues do not exist and the binary logging cannot "
   "break, so you can safely set this to 1."
5963
   ,(uchar**) &trust_function_creators, (uchar**) &trust_function_creators, 0,
5964
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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5965
  {"log-error", OPT_ERROR_LOG_FILE, "Error log file.",
5966
   (uchar**) &log_error_file_ptr, (uchar**) &log_error_file_ptr, 0, GET_STR,
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5967
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5968
  {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.",
5969
   (uchar**) &myisam_log_filename, (uchar**) &myisam_log_filename, 0, GET_STR,
5970
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5971 5972 5973
  {"log-long-format", '0',
   "Log some extra information to update log. Please note that this option is deprecated; see --log-short-format option.", 
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5974 5975
#ifdef WITH_CSV_STORAGE_ENGINE
  {"log-output", OPT_LOG_OUTPUT,
5976
   "Syntax: log-output[=value[,value...]], where \"value\" could be TABLE, "
5977
   "FILE or NONE.",
5978
   (uchar**) &log_output_str, (uchar**) &log_output_str, 0,
5979 5980
   GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
#endif
5981
  {"log-queries-not-using-indexes", OPT_LOG_QUERIES_NOT_USING_INDEXES,
5982
   "Log queries that are executed without benefit of any index to the slow log if it is open.",
5983
   (uchar**) &opt_log_queries_not_using_indexes, (uchar**) &opt_log_queries_not_using_indexes,
5984
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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5985 5986
  {"log-short-format", OPT_SHORT_LOG_FORMAT,
   "Don't log extra information to update and slow-query logs.",
5987
   (uchar**) &opt_short_log_format, (uchar**) &opt_short_log_format,
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5988
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5989
  {"log-slave-updates", OPT_LOG_SLAVE_UPDATES,
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5990
   "Tells the slave to log the updates from the slave thread to the binary log. You will need to turn it on if you plan to daisy-chain the slaves.",
5991
   (uchar**) &opt_log_slave_updates, (uchar**) &opt_log_slave_updates, 0, GET_BOOL,
5992
   NO_ARG, 0, 0, 0, 0, 0, 0},
5993 5994
  {"log-slow-admin-statements", OPT_LOG_SLOW_ADMIN_STATEMENTS,
   "Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to the slow log if it is open.",
5995 5996
   (uchar**) &opt_log_slow_admin_statements,
   (uchar**) &opt_log_slow_admin_statements,
5997
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5998 5999 6000 6001 6002
 {"log-slow-slave-statements", OPT_LOG_SLOW_SLAVE_STATEMENTS,
  "Log slow statements executed by slave thread to the slow log if it is open.",
  (uchar**) &opt_log_slow_slave_statements,
  (uchar**) &opt_log_slow_slave_statements,
  0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
6003
  {"log_slow_queries", OPT_SLOW_QUERY_LOG,
6004 6005 6006 6007
    "Log slow queries to a table or log file. Defaults logging to table "
    "mysql.slow_log or hostname-slow.log if --log-output=file is used. "
    "Must be enabled to activate other slow log options. "
    "(deprecated option, use --slow_query_log/--slow_query_log_file instead)",
6008
   (uchar**) &opt_slow_logname, (uchar**) &opt_slow_logname, 0, GET_STR, OPT_ARG,
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6009
   0, 0, 0, 0, 0, 0},
6010 6011 6012 6013
  {"slow_query_log_file", OPT_SLOW_QUERY_LOG_FILE,
    "Log slow queries to given log file. Defaults logging to hostname-slow.log. Must be enabled to activate other slow log options.",
   (uchar**) &opt_slow_logname, (uchar**) &opt_slow_logname, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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6014 6015 6016
  {"log-tc", OPT_LOG_TC,
   "Path to transaction coordinator log (used for transactions that affect "
   "more than one storage engine, when binary log is disabled)",
6017
   (uchar**) &opt_tc_log_file, (uchar**) &opt_tc_log_file, 0, GET_STR,
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6018
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6019
#ifdef HAVE_MMAP
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6020
  {"log-tc-size", OPT_LOG_TC_SIZE, "Size of transaction coordinator log.",
6021
   (uchar**) &opt_tc_log_size, (uchar**) &opt_tc_log_size, 0, GET_ULONG,
6022 6023
   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, ULONG_MAX, 0,
   TC_LOG_PAGE_SIZE, 0},
6024
#endif
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6025
  {"log-update", OPT_UPDATE_LOG,
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   "The update log is deprecated since version 5.0, is replaced by the binary \
log and this option justs turns on --log-bin instead.",
6028
   (uchar**) &opt_update_logname, (uchar**) &opt_update_logname, 0, GET_STR,
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6029
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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6030
  {"log-warnings", 'W', "Log some not critical warnings to the log file.",
6031 6032
   (uchar**) &global_system_variables.log_warnings,
   (uchar**) &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, 0,
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6033
   0, 0, 0},
6034
  {"low-priority-updates", OPT_LOW_PRIORITY_UPDATES,
6035
   "INSERT/DELETE/UPDATE has lower priority than selects.",
6036 6037
   (uchar**) &global_system_variables.low_priority_updates,
   (uchar**) &max_system_variables.low_priority_updates,
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6038
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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6039 6040
  {"master-connect-retry", OPT_MASTER_CONNECT_RETRY,
   "The number of seconds the slave thread will sleep before retrying to connect to the master in case the master goes down or the connection is lost.",
6041
   (uchar**) &master_connect_retry, (uchar**) &master_connect_retry, 0, GET_UINT,
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6042
   REQUIRED_ARG, 60, 0, 0, 0, 0, 0},
6043
  {"master-host", OPT_MASTER_HOST,
6044
   "Master hostname or IP address for replication. If not set, the slave thread will not be started. Note that the setting of master-host will be ignored if there exists a valid master.info file.",
6045
   (uchar**) &master_host, (uchar**) &master_host, 0, GET_STR, REQUIRED_ARG, 0, 0,
6046
   0, 0, 0, 0},
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6047 6048 6049
  {"master-info-file", OPT_MASTER_INFO_FILE,
   "The location and name of the file that remembers the master and where the I/O replication \
thread is in the master's binlogs.",
6050
   (uchar**) &master_info_file, (uchar**) &master_info_file, 0, GET_STR,
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6051
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6052 6053
  {"master-password", OPT_MASTER_PASSWORD,
   "The password the slave thread will authenticate with when connecting to the master. If not set, an empty password is assumed.The value in master.info will take precedence if it can be read.",
6054
   (uchar**)&master_password, (uchar**)&master_password, 0,
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6055
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6056
  {"master-port", OPT_MASTER_PORT,
6057
   "The port the master is listening on. If not set, the compiled setting of MYSQL_PORT is assumed. If you have not tinkered with configure options, this should be 3306. The value in master.info will take precedence if it can be read.",
6058
   (uchar**) &master_port, (uchar**) &master_port, 0, GET_UINT, REQUIRED_ARG,
6059 6060 6061
   MYSQL_PORT, 0, 0, 0, 0, 0},
  {"master-retry-count", OPT_MASTER_RETRY_COUNT,
   "The number of tries the slave will make to connect to the master before giving up.",
6062
   (uchar**) &master_retry_count, (uchar**) &master_retry_count, 0, GET_ULONG,
6063
   REQUIRED_ARG, 3600*24, 0, 0, 0, 0, 0},
6064
  {"master-ssl", OPT_MASTER_SSL,
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6065
   "Enable the slave to connect to the master using SSL.",
6066
   (uchar**) &master_ssl, (uchar**) &master_ssl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
6067
   0, 0},
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6068 6069
  {"master-ssl-ca", OPT_MASTER_SSL_CA,
   "Master SSL CA file. Only applies if you have enabled master-ssl.",
6070
   (uchar**) &master_ssl_ca, (uchar**) &master_ssl_ca, 0, GET_STR, OPT_ARG,
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6071
   0, 0, 0, 0, 0, 0},
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6072
  {"master-ssl-capath", OPT_MASTER_SSL_CAPATH,
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6073
   "Master SSL CA path. Only applies if you have enabled master-ssl.",
6074
   (uchar**) &master_ssl_capath, (uchar**) &master_ssl_capath, 0, GET_STR, OPT_ARG,
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6075
   0, 0, 0, 0, 0, 0},
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  {"master-ssl-cert", OPT_MASTER_SSL_CERT,
   "Master SSL certificate file name. Only applies if you have enabled \
master-ssl",
6079
   (uchar**) &master_ssl_cert, (uchar**) &master_ssl_cert, 0, GET_STR, OPT_ARG,
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   0, 0, 0, 0, 0, 0},
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  {"master-ssl-cipher", OPT_MASTER_SSL_CIPHER,
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   "Master SSL cipher. Only applies if you have enabled master-ssl.",
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   (uchar**) &master_ssl_cipher, (uchar**) &master_ssl_capath, 0, GET_STR, OPT_ARG,
6084
   0, 0, 0, 0, 0, 0},
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  {"master-ssl-key", OPT_MASTER_SSL_KEY,
   "Master SSL keyfile name. Only applies if you have enabled master-ssl.",
6087
   (uchar**) &master_ssl_key, (uchar**) &master_ssl_key, 0, GET_STR, OPT_ARG,
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   0, 0, 0, 0, 0, 0},
  {"master-user", OPT_MASTER_USER,
   "The username the slave thread will use for authentication when connecting to the master. The user must have FILE privilege. If the master user is not set, user test is assumed. The value in master.info will take precedence if it can be read.",
6091
   (uchar**) &master_user, (uchar**) &master_user, 0, GET_STR, REQUIRED_ARG, 0, 0,
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   0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
6094
  {"max-binlog-dump-events", OPT_MAX_BINLOG_DUMP_EVENTS,
6095
   "Option used by mysql-test for debugging and testing of replication.",
6096
   (uchar**) &max_binlog_dump_events, (uchar**) &max_binlog_dump_events, 0,
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   GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#endif /* HAVE_REPLICATION */
6099 6100
  {"memlock", OPT_MEMLOCK, "Lock mysqld in memory.", (uchar**) &locked_in_memory,
   (uchar**) &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"myisam-recover", OPT_MYISAM_RECOVER,
   "Syntax: myisam-recover[=option[,option...]], where option can be DEFAULT, BACKUP, FORCE or QUICK.",
6103
   (uchar**) &myisam_recover_options_str, (uchar**) &myisam_recover_options_str, 0,
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   GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
6105
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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  {"ndb-connectstring", OPT_NDB_CONNECTSTRING,
   "Connect string for ndbcluster.",
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   (uchar**) &opt_ndb_connectstring,
   (uchar**) &opt_ndb_connectstring,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"ndb-mgmd-host", OPT_NDB_MGMD,
   "Set host and port for ndb_mgmd. Syntax: hostname[:port]",
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   (uchar**) &opt_ndb_mgmd,
   (uchar**) &opt_ndb_mgmd,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-nodeid", OPT_NDB_NODEID,
   "Nodeid for this mysqlserver in the cluster.",
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   (uchar**) &opt_ndb_nodeid,
   (uchar**) &opt_ndb_nodeid,
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   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6121 6122
  {"ndb-autoincrement-prefetch-sz", OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
   "Specify number of autoincrement values that are prefetched.",
6123
   (uchar**) &global_system_variables.ndb_autoincrement_prefetch_sz,
6124
   (uchar**) &max_system_variables.ndb_autoincrement_prefetch_sz,
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   0, GET_ULONG, REQUIRED_ARG, 1, 1, 256, 0, 0, 0},
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  {"ndb-force-send", OPT_NDB_FORCE_SEND,
   "Force send of buffers to ndb immediately without waiting for "
   "other threads.",
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   (uchar**) &global_system_variables.ndb_force_send,
   (uchar**) &global_system_variables.ndb_force_send,
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   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
6132
  {"ndb_force_send", OPT_NDB_FORCE_SEND,
6133
   "same as --ndb-force-send.",
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   (uchar**) &global_system_variables.ndb_force_send,
   (uchar**) &global_system_variables.ndb_force_send,
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   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb-extra-logging", OPT_NDB_EXTRA_LOGGING,
   "Turn on more logging in the error log.",
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   (uchar**) &ndb_extra_logging,
   (uchar**) &ndb_extra_logging,
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   0, GET_INT, OPT_ARG, 0, 0, 0, 0, 0, 0},
#ifdef HAVE_NDB_BINLOG
  {"ndb-report-thresh-binlog-epoch-slip", OPT_NDB_REPORT_THRESH_BINLOG_EPOCH_SLIP,
   "Threshold on number of epochs to be behind before reporting binlog status. "
   "E.g. 3 means that if the difference between what epoch has been received "
   "from the storage nodes and what has been applied to the binlog is 3 or more, "
   "a status message will be sent to the cluster log.",
6148 6149
   (uchar**) &ndb_report_thresh_binlog_epoch_slip,
   (uchar**) &ndb_report_thresh_binlog_epoch_slip,
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   0, GET_ULONG, REQUIRED_ARG, 3, 0, 256, 0, 0, 0},
  {"ndb-report-thresh-binlog-mem-usage", OPT_NDB_REPORT_THRESH_BINLOG_MEM_USAGE,
   "Threshold on percentage of free memory before reporting binlog status. E.g. "
   "10 means that if amount of available memory for receiving binlog data from "
   "the storage nodes goes below 10%, "
   "a status message will be sent to the cluster log.",
6156 6157
   (uchar**) &ndb_report_thresh_binlog_mem_usage,
   (uchar**) &ndb_report_thresh_binlog_mem_usage,
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   0, GET_ULONG, REQUIRED_ARG, 10, 0, 100, 0, 0, 0},
#endif
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  {"ndb-use-exact-count", OPT_NDB_USE_EXACT_COUNT,
   "Use exact records count during query planning and for fast "
   "select count(*), disable for faster queries.",
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   (uchar**) &global_system_variables.ndb_use_exact_count,
   (uchar**) &global_system_variables.ndb_use_exact_count,
6165
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
6166
  {"ndb_use_exact_count", OPT_NDB_USE_EXACT_COUNT,
6167
   "same as --ndb-use-exact-count.",
6168 6169
   (uchar**) &global_system_variables.ndb_use_exact_count,
   (uchar**) &global_system_variables.ndb_use_exact_count,
6170
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb-use-transactions", OPT_NDB_USE_TRANSACTIONS,
   "Use transactions for large inserts, if enabled then large "
   "inserts will be split into several smaller transactions",
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   (uchar**) &global_system_variables.ndb_use_transactions,
   (uchar**) &global_system_variables.ndb_use_transactions,
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   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
  {"ndb_use_transactions", OPT_NDB_USE_TRANSACTIONS,
   "same as --ndb-use-transactions.",
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   (uchar**) &global_system_variables.ndb_use_transactions,
   (uchar**) &global_system_variables.ndb_use_transactions,
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   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
6182 6183
  {"ndb-shm", OPT_NDB_SHM,
   "Use shared memory connections when available.",
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   (uchar**) &opt_ndb_shm,
   (uchar**) &opt_ndb_shm,
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   0, GET_BOOL, OPT_ARG, OPT_NDB_SHM_DEFAULT, 0, 0, 0, 0, 0},
  {"ndb-optimized-node-selection", OPT_NDB_OPTIMIZED_NODE_SELECTION,
   "Select nodes for transactions in a more optimal way.",
6189 6190
   (uchar**) &opt_ndb_optimized_node_selection,
   (uchar**) &opt_ndb_optimized_node_selection,
6191
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  { "ndb-cache-check-time", OPT_NDB_CACHE_CHECK_TIME,
    "A dedicated thread is created to, at the given millisecons interval, invalidate the query cache if another MySQL server in the cluster has changed the data in the database.",
6194
    (uchar**) &opt_ndb_cache_check_time, (uchar**) &opt_ndb_cache_check_time, 0, GET_ULONG, REQUIRED_ARG,
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    0, 0, LONG_TIMEOUT, 0, 1, 0},
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  {"ndb-index-stat-enable", OPT_NDB_INDEX_STAT_ENABLE,
   "Use ndb index statistics in query optimization.",
6198 6199
   (uchar**) &global_system_variables.ndb_index_stat_enable,
   (uchar**) &max_system_variables.ndb_index_stat_enable,
6200
   0, GET_BOOL, OPT_ARG, 0, 0, 1, 0, 0, 0},
6201
#endif
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  {"ndb-use-copying-alter-table",
6203
   OPT_NDB_USE_COPYING_ALTER_TABLE,
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   "Force ndbcluster to always copy tables at alter table (should only be used if on-line alter table fails).",
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   (uchar**) &global_system_variables.ndb_use_copying_alter_table,
   (uchar**) &global_system_variables.ndb_use_copying_alter_table,
6207
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},  
6208
  {"new", 'n', "Use very new possible 'unsafe' functions.",
6209 6210
   (uchar**) &global_system_variables.new_mode,
   (uchar**) &max_system_variables.new_mode,
6211
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef NOT_YET
6213
  {"no-mix-table-types", OPT_NO_MIX_TYPE, "Don't allow commands with uses two different table types.",
6214
   (uchar**) &opt_no_mix_types, (uchar**) &opt_no_mix_types, 0, GET_BOOL, NO_ARG,
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   0, 0, 0, 0, 0, 0},
#endif
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  {"old-alter-table", OPT_OLD_ALTER_TABLE,
   "Use old, non-optimized alter table.",
6219 6220
   (uchar**) &global_system_variables.old_alter_table,
   (uchar**) &max_system_variables.old_alter_table, 0, GET_BOOL, NO_ARG,
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   0, 0, 0, 0, 0, 0},
6222
  {"old-passwords", OPT_OLD_PASSWORDS, "Use old password encryption method (needed for 4.0 and older clients).",
6223 6224
   (uchar**) &global_system_variables.old_passwords,
   (uchar**) &max_system_variables.old_passwords, 0, GET_BOOL, NO_ARG,
6225
   0, 0, 0, 0, 0, 0},
6226
  {"one-thread", OPT_ONE_THREAD,
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   "(deprecated): Only use one thread (for debugging under Linux). Use thread-handling=no-threads instead",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"old-style-user-limits", OPT_OLD_STYLE_USER_LIMITS,
   "Enable old-style user limits (before 5.0.3 user resources were counted per each user+host vs. per account)",
6231
   (uchar**) &opt_old_style_user_limits, (uchar**) &opt_old_style_user_limits,
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   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
6233
  {"pid-file", OPT_PID_FILE, "Pid file used by safe_mysqld.",
6234
   (uchar**) &pidfile_name_ptr, (uchar**) &pidfile_name_ptr, 0, GET_STR,
6235
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"port", 'P', "Port number to use for connection or 0 for default to, in "
   "order of preference, my.cnf, $MYSQL_TCP_PORT, "
#if MYSQL_PORT_DEFAULT == 0
   "/etc/services, "
#endif
   "built-in default (" STRINGIFY_ARG(MYSQL_PORT) ").",
6242
   (uchar**) &mysqld_port,
6243
   (uchar**) &mysqld_port, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6244 6245
  {"port-open-timeout", OPT_PORT_OPEN_TIMEOUT,
   "Maximum time in seconds to wait for the port to become free. "
6246 6247
   "(Default: no wait)", (uchar**) &mysqld_port_timeout,
   (uchar**) &mysqld_port_timeout, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6248
#if defined(ENABLED_PROFILING) && defined(COMMUNITY_SERVER)
6249
  {"profiling_history_size", OPT_PROFILING, "Limit of query profiling memory",
6250 6251
   (uchar**) &global_system_variables.profiling_history_size,
   (uchar**) &max_system_variables.profiling_history_size,
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   0, GET_ULONG, REQUIRED_ARG, 15, 0, 100, 0, 0, 0},
6253
#endif
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  {"relay-log", OPT_RELAY_LOG,
   "The location and name to use for relay logs.",
6256
   (uchar**) &opt_relay_logname, (uchar**) &opt_relay_logname, 0,
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   GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"relay-log-index", OPT_RELAY_LOG_INDEX,
   "The location and name to use for the file that keeps a list of the last \
relay logs.",
6261
   (uchar**) &opt_relaylog_index_name, (uchar**) &opt_relaylog_index_name, 0,
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   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"relay-log-info-file", OPT_RELAY_LOG_INFO_FILE,
   "The location and name of the file that remembers where the SQL replication \
thread is in the relay logs.",
6266
   (uchar**) &relay_log_info_file, (uchar**) &relay_log_info_file, 0, GET_STR,
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   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"replicate-do-db", OPT_REPLICATE_DO_DB,
   "Tells the slave thread to restrict replication to the specified database. To specify more than one database, use the directive multiple times, once for each database. Note that this will only work if you do not use cross-database queries such as UPDATE some_db.some_table SET foo='bar' while having selected a different or no database. If you need cross database updates to work, make sure you have 3.23.28 or later, and use replicate-wild-do-table=db_name.%.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-do-table", OPT_REPLICATE_DO_TABLE,
   "Tells the slave thread to restrict replication to the specified table. To specify more than one table, use the directive multiple times, once for each table. This will work for cross-database updates, in contrast to replicate-do-db.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-ignore-db", OPT_REPLICATE_IGNORE_DB,
   "Tells the slave thread to not replicate to the specified database. To specify more than one database to ignore, use the directive multiple times, once for each database. This option will not work if you use cross database updates. If you need cross database updates to work, make sure you have 3.23.28 or later, and use replicate-wild-ignore-table=db_name.%. ",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-ignore-table", OPT_REPLICATE_IGNORE_TABLE,
   "Tells the slave thread to not replicate to the specified table. To specify more than one table to ignore, use the directive multiple times, once for each table. This will work for cross-datbase updates, in contrast to replicate-ignore-db.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-rewrite-db", OPT_REPLICATE_REWRITE_DB,
6281
   "Updates to a database with a different name than the original. Example: replicate-rewrite-db=master_db_name->slave_db_name.",
6282
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
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  {"replicate-same-server-id", OPT_REPLICATE_SAME_SERVER_ID,
   "In replication, if set to 1, do not skip events having our server id. \
Default value is 0 (to break infinite loops in circular replication). \
Can't be set to 1 if --log-slave-updates is used.",
6288 6289
   (uchar**) &replicate_same_server_id,
   (uchar**) &replicate_same_server_id,
6290
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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  {"replicate-wild-do-table", OPT_REPLICATE_WILD_DO_TABLE,
   "Tells the slave thread to restrict replication to the tables that match the specified wildcard pattern. To specify more than one table, use the directive multiple times, once for each table. This will work for cross-database updates. Example: replicate-wild-do-table=foo%.bar% will replicate only updates to tables in all databases that start with foo and whose table names start with bar.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-wild-ignore-table", OPT_REPLICATE_WILD_IGNORE_TABLE,
   "Tells the slave thread to not replicate to the tables that match the given wildcard pattern. To specify more than one table to ignore, use the directive multiple times, once for each table. This will work for cross-database updates. Example: replicate-wild-ignore-table=foo%.bar% will not do updates to tables in databases that start with foo and whose table names start with bar.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6298
  // In replication, we may need to tell the other servers how to connect
6299 6300
  {"report-host", OPT_REPORT_HOST,
   "Hostname or IP of the slave to be reported to to the master during slave registration. Will appear in the output of SHOW SLAVE HOSTS. Leave unset if you do not want the slave to register itself with the master. Note that it is not sufficient for the master to simply read the IP of the slave off the socket once the slave connects. Due to NAT and other routing issues, that IP may not be valid for connecting to the slave from the master or other hosts.",
6301
   (uchar**) &report_host, (uchar**) &report_host, 0, GET_STR, REQUIRED_ARG, 0, 0,
6302
   0, 0, 0, 0},
6303
  {"report-password", OPT_REPORT_PASSWORD, "Undocumented.",
6304
   (uchar**) &report_password, (uchar**) &report_password, 0, GET_STR,
6305 6306 6307
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"report-port", OPT_REPORT_PORT,
   "Port for connecting to slave reported to the master during slave registration. Set it only if the slave is listening on a non-default port or if you have a special tunnel from the master or other clients to the slave. If not sure, leave this option unset.",
6308
   (uchar**) &report_port, (uchar**) &report_port, 0, GET_UINT, REQUIRED_ARG,
6309
   MYSQL_PORT, 0, 0, 0, 0, 0},
6310 6311
  {"report-user", OPT_REPORT_USER, "Undocumented.", (uchar**) &report_user,
   (uchar**) &report_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6312
  {"rpl-recovery-rank", OPT_RPL_RECOVERY_RANK, "Undocumented.",
6313
   (uchar**) &rpl_recovery_rank, (uchar**) &rpl_recovery_rank, 0, GET_ULONG,
6314 6315 6316
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"safe-mode", OPT_SAFE, "Skip some optimize stages (for testing).",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef TO_BE_DELETED
6318
  {"safe-show-database", OPT_SAFE_SHOW_DB,
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   "Deprecated option; use GRANT SHOW DATABASES instead...",
6320
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#endif
6322
  {"safe-user-create", OPT_SAFE_USER_CREATE,
6323
   "Don't allow new user creation by the user who has no write privileges to the mysql.user table.",
6324
   (uchar**) &opt_safe_user_create, (uchar**) &opt_safe_user_create, 0, GET_BOOL,
6325
   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"safemalloc-mem-limit", OPT_SAFEMALLOC_MEM_LIMIT,
   "Simulate memory shortage when compiled with the --with-debug=full option.",
   0, 0, 0, GET_ULL, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6329
  {"secure-auth", OPT_SECURE_AUTH, "Disallow authentication for accounts that have old (pre-4.1) passwords.",
6330
   (uchar**) &opt_secure_auth, (uchar**) &opt_secure_auth, 0, GET_BOOL, NO_ARG,
6331
   my_bool(0), 0, 0, 0, 0, 0},
6332 6333
  {"secure-file-priv", OPT_SECURE_FILE_PRIV,
   "Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within specified directory",
6334
   (uchar**) &opt_secure_file_priv, (uchar**) &opt_secure_file_priv, 0,
6335
   GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6336
  {"server-id",	OPT_SERVER_ID,
6337
   "Uniquely identifies the server instance in the community of replication partners.",
6338
   (uchar**) &server_id, (uchar**) &server_id, 0, GET_ULONG, REQUIRED_ARG, 0, 0, UINT_MAX32,
6339 6340 6341 6342
   0, 0, 0},
  {"set-variable", 'O',
   "Change the value of a variable. Please note that this option is deprecated;you can set variables directly with --variable-name=value.",
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6343
#ifdef HAVE_SMEM
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  {"shared-memory", OPT_ENABLE_SHARED_MEMORY,
6345
   "Enable the shared memory.",(uchar**) &opt_enable_shared_memory, (uchar**) &opt_enable_shared_memory,
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   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
#ifdef HAVE_SMEM
  {"shared-memory-base-name",OPT_SHARED_MEMORY_BASE_NAME,
6350
   "Base name of shared memory.", (uchar**) &shared_memory_base_name, (uchar**) &shared_memory_base_name,
6351 6352
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"show-slave-auth-info", OPT_SHOW_SLAVE_AUTH_INFO,
6354
   "Show user and password in SHOW SLAVE HOSTS on this master",
6355
   (uchar**) &opt_show_slave_auth_info, (uchar**) &opt_show_slave_auth_info, 0,
6356
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
6357
#ifndef DISABLE_GRANT_OPTIONS
6358 6359
  {"skip-grant-tables", OPT_SKIP_GRANT,
   "Start without grant tables. This gives all users FULL ACCESS to all tables!",
6360
   (uchar**) &opt_noacl, (uchar**) &opt_noacl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
6361
   0},
6362
#endif
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  {"skip-host-cache", OPT_SKIP_HOST_CACHE, "Don't cache host names.", 0, 0, 0,
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
6365
  {"skip-locking", OPT_SKIP_LOCK,
6366
   "Deprecated option, use --skip-external-locking instead.",
6367 6368
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-name-resolve", OPT_SKIP_RESOLVE,
6369
   "Don't resolve hostnames. All hostnames are IP's or 'localhost'.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-networking", OPT_SKIP_NETWORKING,
   "Don't allow connection with TCP/IP.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0,
   0, 0, 0},
  {"skip-new", OPT_SKIP_NEW, "Don't use new, possible wrong routines.",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef DBUG_OFF
#ifdef SAFEMALLOC
  {"skip-safemalloc", OPT_SKIP_SAFEMALLOC,
   "Don't use the memory allocation checking.", 0, 0, 0, GET_NO_ARG, NO_ARG,
   0, 0, 0, 0, 0, 0},
#endif
#endif
6383
  {"skip-show-database", OPT_SKIP_SHOW_DB,
6384
   "Don't allow 'SHOW DATABASE' commands.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
6385 6386
   0, 0, 0, 0},
  {"skip-slave-start", OPT_SKIP_SLAVE_START,
6387 6388
   "If set, slave is not autostarted.", (uchar**) &opt_skip_slave_start,
   (uchar**) &opt_skip_slave_start, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
6389
  {"skip-stack-trace", OPT_SKIP_STACK_TRACE,
6390
   "Don't print a stack trace on failure.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
6391
   0, 0, 0, 0},
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6392
  {"skip-symlink", OPT_SKIP_SYMLINKS, "Don't allow symlinking of tables. Deprecated option.  Use --skip-symbolic-links instead.",
6393 6394
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-thread-priority", OPT_SKIP_PRIOR,
6395
   "Don't give threads different priorities. Deprecated option.", 0, 0, 0, GET_NO_ARG, NO_ARG,
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   DEFAULT_SKIP_THREAD_PRIORITY, 0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
6398
  {"slave-load-tmpdir", OPT_SLAVE_LOAD_TMPDIR,
6399
   "The location where the slave should put its temporary files when \
6400
replicating a LOAD DATA INFILE command.",
6401
   (uchar**) &slave_load_tmpdir, (uchar**) &slave_load_tmpdir, 0, GET_STR_ALLOC,
6402 6403
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"slave-skip-errors", OPT_SLAVE_SKIP_ERRORS,
6404
   "Tells the slave thread to continue replication when a query event returns an error from the provided list.",
6405
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6406 6407 6408
  {"slave-exec-mode", OPT_SLAVE_EXEC_MODE,
   "Modes for how replication events should be executed.  Legal values are STRICT (default) and IDEMPOTENT. In IDEMPOTENT mode, replication will not stop for operations that are idempotent. In STRICT mode, replication will stop on any unexpected difference between the master and the slave.",
   (uchar**) &slave_exec_mode_str, (uchar**) &slave_exec_mode_str, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6409
#endif
6410
  {"slow-query-log", OPT_SLOW_LOG,
6411 6412
   "Enable|disable slow query log", (uchar**) &opt_slow_log,
   (uchar**) &opt_slow_log, 0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
6413
  {"socket", OPT_SOCKET, "Socket file to use for connection.",
6414
   (uchar**) &mysqld_unix_port, (uchar**) &mysqld_unix_port, 0, GET_STR,
6415
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
  {"sporadic-binlog-dump-fail", OPT_SPORADIC_BINLOG_DUMP_FAIL,
   "Option used by mysql-test for debugging and testing of replication.",
6419 6420
   (uchar**) &opt_sporadic_binlog_dump_fail,
   (uchar**) &opt_sporadic_binlog_dump_fail, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
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   0},
#endif /* HAVE_REPLICATION */
6423
  {"sql-bin-update-same", OPT_SQL_BIN_UPDATE_SAME,
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   "The update log is deprecated since version 5.0, is replaced by the binary \
log and this option does nothing anymore.",
6426
   0, 0, 0, GET_DISABLED, NO_ARG, 0, 0, 0, 0, 0, 0},
6427
  {"sql-mode", OPT_SQL_MODE,
6428
   "Syntax: sql-mode=option[,option[,option...]] where option can be one of: REAL_AS_FLOAT, PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, ONLY_FULL_GROUP_BY, NO_UNSIGNED_SUBTRACTION.",
6429
   (uchar**) &sql_mode_str, (uchar**) &sql_mode_str, 0, GET_STR, REQUIRED_ARG, 0,
6430
   0, 0, 0, 0, 0},
6431
#ifdef HAVE_OPENSSL
6432 6433
#include "sslopt-longopts.h"
#endif
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#ifdef __WIN__
  {"standalone", OPT_STANDALONE,
  "Dummy option to start as a standalone program (NT).", 0, 0, 0, GET_NO_ARG,
   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
  {"symbolic-links", 's', "Enable symbolic link support.",
6440
   (uchar**) &my_use_symdir, (uchar**) &my_use_symdir, 0, GET_BOOL, NO_ARG,
6441 6442 6443 6444 6445
   /*
     The system call realpath() produces warnings under valgrind and
     purify. These are not suppressed: instead we disable symlinks
     option if compiled with valgrind support.
   */
6446
   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
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  {"sysdate-is-now", OPT_SYSDATE_IS_NOW,
   "Non-default option to alias SYSDATE() to NOW() to make it safe-replicable. Since 5.0, SYSDATE() returns a `dynamic' value different for different invocations, even within the same statement.",
6449
   (uchar**) &global_system_variables.sysdate_is_now,
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6450
   0, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
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6451
  {"tc-heuristic-recover", OPT_TC_HEURISTIC_RECOVER,
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   "Decision to use in heuristic recover process. Possible values are COMMIT or ROLLBACK.",
6453
   (uchar**) &opt_tc_heuristic_recover, (uchar**) &opt_tc_heuristic_recover,
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6454
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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6455
  {"temp-pool", OPT_TEMP_POOL,
6456
#if (ENABLE_TEMP_POOL)
6457
   "Using this option will cause most temporary files created to use a small set of names, rather than a unique name for each new file.",
6458 6459 6460
#else
   "This option is ignored on this OS.",
#endif
6461
   (uchar**) &use_temp_pool, (uchar**) &use_temp_pool, 0, GET_BOOL, NO_ARG, 1,
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   0, 0, 0, 0, 0},
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6464 6465
  {"timed_mutexes", OPT_TIMED_MUTEXES,
   "Specify whether to time mutexes (only InnoDB mutexes are currently supported)",
6466
   (uchar**) &timed_mutexes, (uchar**) &timed_mutexes, 0, GET_BOOL, NO_ARG, 0, 
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    0, 0, 0, 0, 0},
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  {"tmpdir", 't',
   "Path for temporary files. Several paths may be specified, separated by a "
6470
#if defined(__WIN__) || defined(__NETWARE__)
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   "semicolon (;)"
#else
   "colon (:)"
#endif
   ", in this case they are used in a round-robin fashion.",
6476 6477
   (uchar**) &opt_mysql_tmpdir,
   (uchar**) &opt_mysql_tmpdir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6478
  {"transaction-isolation", OPT_TX_ISOLATION,
6479
   "Default transaction isolation level.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0,
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   0, 0, 0, 0, 0},
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6481
  {"use-symbolic-links", 's', "Enable symbolic link support. Deprecated option; use --symbolic-links instead.",
6482
   (uchar**) &my_use_symdir, (uchar**) &my_use_symdir, 0, GET_BOOL, NO_ARG,
6483
   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
6484
  {"user", 'u', "Run mysqld daemon as user.", 0, 0, 0, GET_STR, REQUIRED_ARG,
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   0, 0, 0, 0, 0, 0},
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6486
  {"verbose", 'v', "Used with --help option for detailed help",
6487
   (uchar**) &opt_verbose, (uchar**) &opt_verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
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   0, 0},
6489
  {"version", 'V', "Output version information and exit.", 0, 0, 0, GET_NO_ARG,
6490
   NO_ARG, 0, 0, 0, 0, 0, 0},
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6491
  {"warnings", 'W', "Deprecated; use --log-warnings instead.",
6492
   (uchar**) &global_system_variables.log_warnings,
6493
   (uchar**) &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG,
6494
   1, 0, ULONG_MAX, 0, 0, 0},
6495
  { "back_log", OPT_BACK_LOG,
6496
    "The number of outstanding connection requests MySQL can have. This comes into play when the main MySQL thread gets very many connection requests in a very short time.",
6497
    (uchar**) &back_log, (uchar**) &back_log, 0, GET_ULONG,
6498 6499 6500
    REQUIRED_ARG, 50, 1, 65535, 0, 1, 0 },
  {"binlog_cache_size", OPT_BINLOG_CACHE_SIZE,
   "The size of the cache to hold the SQL statements for the binary log during a transaction. If you often use big, multi-statement transactions you can increase this to get more performance.",
6501
   (uchar**) &binlog_cache_size, (uchar**) &binlog_cache_size, 0, GET_ULONG,
6502
   REQUIRED_ARG, 32*1024L, IO_SIZE, ULONG_MAX, 0, IO_SIZE, 0},
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6503 6504
  {"bulk_insert_buffer_size", OPT_BULK_INSERT_BUFFER_SIZE,
   "Size of tree cache used in bulk insert optimisation. Note that this is a limit per thread!",
6505 6506
   (uchar**) &global_system_variables.bulk_insert_buff_size,
   (uchar**) &max_system_variables.bulk_insert_buff_size,
6507
   0, GET_ULONG, REQUIRED_ARG, 8192*1024, 0, ULONG_MAX, 0, 1, 0},
6508
  {"connect_timeout", OPT_CONNECT_TIMEOUT,
6509
   "The number of seconds the mysqld server is waiting for a connect packet before responding with 'Bad handshake'.",
6510
    (uchar**) &connect_timeout, (uchar**) &connect_timeout,
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   0, GET_ULONG, REQUIRED_ARG, CONNECT_TIMEOUT, 2, LONG_TIMEOUT, 0, 1, 0 },
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  { "date_format", OPT_DATE_FORMAT,
    "The DATE format (For future).",
6514 6515
    (uchar**) &opt_date_time_formats[MYSQL_TIMESTAMP_DATE],
    (uchar**) &opt_date_time_formats[MYSQL_TIMESTAMP_DATE],
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    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  { "datetime_format", OPT_DATETIME_FORMAT,
    "The DATETIME/TIMESTAMP format (for future).",
6519 6520
    (uchar**) &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME],
    (uchar**) &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME],
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    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  { "default_week_format", OPT_DEFAULT_WEEK_FORMAT,
    "The default week format used by WEEK() functions.",
6524 6525
    (uchar**) &global_system_variables.default_week_format,
    (uchar**) &max_system_variables.default_week_format,
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6526
    0, GET_ULONG, REQUIRED_ARG, 0, 0, 7L, 0, 1, 0},
6527 6528
  {"delayed_insert_limit", OPT_DELAYED_INSERT_LIMIT,
   "After inserting delayed_insert_limit rows, the INSERT DELAYED handler will check if there are any SELECT statements pending. If so, it allows these to execute before continuing.",
6529
    (uchar**) &delayed_insert_limit, (uchar**) &delayed_insert_limit, 0, GET_ULONG,
6530
    REQUIRED_ARG, DELAYED_LIMIT, 1, ULONG_MAX, 0, 1, 0},
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6531 6532
  {"delayed_insert_timeout", OPT_DELAYED_INSERT_TIMEOUT,
   "How long a INSERT DELAYED thread should wait for INSERT statements before terminating.",
6533
   (uchar**) &delayed_insert_timeout, (uchar**) &delayed_insert_timeout, 0,
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6534
   GET_ULONG, REQUIRED_ARG, DELAYED_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
6535 6536
  { "delayed_queue_size", OPT_DELAYED_QUEUE_SIZE,
    "What size queue (in rows) should be allocated for handling INSERT DELAYED. If the queue becomes full, any client that does INSERT DELAYED will wait until there is room in the queue again.",
6537
    (uchar**) &delayed_queue_size, (uchar**) &delayed_queue_size, 0, GET_ULONG,
6538
    REQUIRED_ARG, DELAYED_QUEUE_SIZE, 1, ULONG_MAX, 0, 1, 0},
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6539 6540
  {"div_precision_increment", OPT_DIV_PRECINCREMENT,
   "Precision of the result of '/' operator will be increased on that value.",
6541 6542
   (uchar**) &global_system_variables.div_precincrement,
   (uchar**) &max_system_variables.div_precincrement, 0, GET_ULONG,
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6543
   REQUIRED_ARG, 4, 0, DECIMAL_MAX_SCALE, 0, 0, 0},
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6544
  {"expire_logs_days", OPT_EXPIRE_LOGS_DAYS,
6545 6546
   "If non-zero, binary logs will be purged after expire_logs_days "
   "days; possible purges happen at startup and at binary log rotation.",
6547 6548
   (uchar**) &expire_logs_days,
   (uchar**) &expire_logs_days, 0, GET_ULONG,
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6549
   REQUIRED_ARG, 0, 0, 99, 0, 1, 0},
6550 6551
  { "flush_time", OPT_FLUSH_TIME,
    "A dedicated thread is created to flush all tables at the given interval.",
6552
    (uchar**) &flush_time, (uchar**) &flush_time, 0, GET_ULONG, REQUIRED_ARG,
6553
    FLUSH_TIME, 0, LONG_TIMEOUT, 0, 1, 0},
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  { "ft_boolean_syntax", OPT_FT_BOOLEAN_SYNTAX,
    "List of operators for MATCH ... AGAINST ( ... IN BOOLEAN MODE)",
    0, 0, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6558 6559
  { "ft_max_word_len", OPT_FT_MAX_WORD_LEN,
    "The maximum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable.",
6560
    (uchar**) &ft_max_word_len, (uchar**) &ft_max_word_len, 0, GET_ULONG,
6561
    REQUIRED_ARG, HA_FT_MAXCHARLEN, 10, HA_FT_MAXCHARLEN, 0, 1, 0},
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  { "ft_min_word_len", OPT_FT_MIN_WORD_LEN,
    "The minimum length of the word to be included in a FULLTEXT index. Note: FULLTEXT indexes must be rebuilt after changing this variable.",
6564
    (uchar**) &ft_min_word_len, (uchar**) &ft_min_word_len, 0, GET_ULONG,
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6565
    REQUIRED_ARG, 4, 1, HA_FT_MAXCHARLEN, 0, 1, 0},
6566 6567
  { "ft_query_expansion_limit", OPT_FT_QUERY_EXPANSION_LIMIT,
    "Number of best matches to use for query expansion",
6568
    (uchar**) &ft_query_expansion_limit, (uchar**) &ft_query_expansion_limit, 0, GET_ULONG,
6569
    REQUIRED_ARG, 20, 0, 1000, 0, 1, 0},
6570 6571
  { "ft_stopword_file", OPT_FT_STOPWORD_FILE,
    "Use stopwords from this file instead of built-in list.",
6572
    (uchar**) &ft_stopword_file, (uchar**) &ft_stopword_file, 0, GET_STR,
6573
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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6574 6575
  { "group_concat_max_len", OPT_GROUP_CONCAT_MAX_LEN,
    "The maximum length of the result of function  group_concat.",
6576 6577
    (uchar**) &global_system_variables.group_concat_max_len,
    (uchar**) &max_system_variables.group_concat_max_len, 0, GET_ULONG,
6578
    REQUIRED_ARG, 1024, 4, ULONG_MAX, 0, 1, 0},
6579 6580
  {"interactive_timeout", OPT_INTERACTIVE_TIMEOUT,
   "The number of seconds the server waits for activity on an interactive connection before closing it.",
6581 6582
   (uchar**) &global_system_variables.net_interactive_timeout,
   (uchar**) &max_system_variables.net_interactive_timeout, 0,
6583 6584 6585
   GET_ULONG, REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
  {"join_buffer_size", OPT_JOIN_BUFF_SIZE,
   "The size of the buffer that is used for full joins.",
6586 6587
   (uchar**) &global_system_variables.join_buff_size,
   (uchar**) &max_system_variables.join_buff_size, 0, GET_ULONG,
6588 6589
   REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ULONG_MAX,
   MALLOC_OVERHEAD, IO_SIZE, 0},
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6590 6591
  {"keep_files_on_create", OPT_KEEP_FILES_ON_CREATE,
   "Don't overwrite stale .MYD and .MYI even if no directory is specified.",
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   (uchar**) &global_system_variables.keep_files_on_create,
   (uchar**) &max_system_variables.keep_files_on_create,
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6594
   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
6595
  {"key_buffer_size", OPT_KEY_BUFFER_SIZE,
6596
   "The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford; 64M on a 256M machine that mainly runs MySQL is quite common.",
6597 6598
   (uchar**) &dflt_key_cache_var.param_buff_size,
   (uchar**) 0,
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6599
   0, (GET_ULL | GET_ASK_ADDR),
6600
   REQUIRED_ARG, KEY_CACHE_SIZE, MALLOC_OVERHEAD, SIZE_T_MAX, MALLOC_OVERHEAD,
6601
   IO_SIZE, 0},
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  {"key_cache_age_threshold", OPT_KEY_CACHE_AGE_THRESHOLD,
   "This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache",
6604 6605
   (uchar**) &dflt_key_cache_var.param_age_threshold,
   (uchar**) 0,
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6606
   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG, 
6607
   300, 100, ULONG_MAX, 0, 100, 0},
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6608 6609
  {"key_cache_block_size", OPT_KEY_CACHE_BLOCK_SIZE,
   "The default size of key cache blocks",
6610 6611
   (uchar**) &dflt_key_cache_var.param_block_size,
   (uchar**) 0,
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   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG,
6613
   KEY_CACHE_BLOCK_SIZE, 512, 1024 * 16, 0, 512, 0},
6614 6615
  {"key_cache_division_limit", OPT_KEY_CACHE_DIVISION_LIMIT,
   "The minimum percentage of warm blocks in key cache",
6616 6617
   (uchar**) &dflt_key_cache_var.param_division_limit,
   (uchar**) 0,
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6618
   0, (GET_ULONG | GET_ASK_ADDR) , REQUIRED_ARG, 100,
6619
   1, 100, 0, 1, 0},
6620
  {"long_query_time", OPT_LONG_QUERY_TIME,
6621 6622 6623 6624
   "Log all queries that have taken more than long_query_time seconds to execute to file. "
   "The argument will be treated as a decimal value with microsecond precission.",
   (uchar**) &long_query_time, (uchar**) &long_query_time, 0, GET_DOUBLE,
   REQUIRED_ARG, 10, 0, LONG_TIMEOUT, 0, 0, 0},
6625
  {"lower_case_table_names", OPT_LOWER_CASE_TABLE_NAMES,
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6626
   "If set to 1 table names are stored in lowercase on disk and table names will be case-insensitive.  Should be set to 2 if you are using a case insensitive file system",
6627 6628
   (uchar**) &lower_case_table_names,
   (uchar**) &lower_case_table_names, 0, GET_UINT, OPT_ARG,
6629 6630 6631 6632 6633
#ifdef FN_NO_CASE_SENCE
    1
#else
    0
#endif
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6634
   , 0, 2, 0, 1, 0},
6635 6636
  {"max_allowed_packet", OPT_MAX_ALLOWED_PACKET,
   "Max packetlength to send/receive from to server.",
6637 6638
   (uchar**) &global_system_variables.max_allowed_packet,
   (uchar**) &max_system_variables.max_allowed_packet, 0, GET_ULONG,
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6639
   REQUIRED_ARG, 1024*1024L, 1024, 1024L*1024L*1024L, MALLOC_OVERHEAD, 1024, 0},
6640 6641
  {"max_binlog_cache_size", OPT_MAX_BINLOG_CACHE_SIZE,
   "Can be used to restrict the total size used to cache a multi-transaction query.",
6642
   (uchar**) &max_binlog_cache_size, (uchar**) &max_binlog_cache_size, 0,
6643
   GET_ULL, REQUIRED_ARG, ULONG_MAX, IO_SIZE, ULONGLONG_MAX, 0, IO_SIZE, 0},
6644
  {"max_binlog_size", OPT_MAX_BINLOG_SIZE,
6645 6646 6647
   "Binary log will be rotated automatically when the size exceeds this \
value. Will also apply to relay logs if max_relay_log_size is 0. \
The minimum value for this variable is 4096.",
6648
   (uchar**) &max_binlog_size, (uchar**) &max_binlog_size, 0, GET_ULONG,
6649
   REQUIRED_ARG, 1024*1024L*1024L, IO_SIZE, 1024*1024L*1024L, 0, IO_SIZE, 0},
6650 6651
  {"max_connect_errors", OPT_MAX_CONNECT_ERRORS,
   "If there is more than this number of interrupted connections from a host this host will be blocked from further connections.",
6652
   (uchar**) &max_connect_errors, (uchar**) &max_connect_errors, 0, GET_ULONG,
6653
    REQUIRED_ARG, MAX_CONNECT_ERRORS, 1, ULONG_MAX, 0, 1, 0},
6654 6655
  // Default max_connections of 151 is larger than Apache's default max
  // children, to avoid "too many connections" error in a common setup
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6656
  {"max_connections", OPT_MAX_CONNECTIONS,
6657 6658
   "The number of simultaneous clients allowed.", (uchar**) &max_connections,
   (uchar**) &max_connections, 0, GET_ULONG, REQUIRED_ARG, 151, 1, 100000, 0, 1,
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6659
   0},
6660
  {"max_delayed_threads", OPT_MAX_DELAYED_THREADS,
6661
   "Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero, which means INSERT DELAYED is not used.",
6662 6663
   (uchar**) &global_system_variables.max_insert_delayed_threads,
   (uchar**) &max_system_variables.max_insert_delayed_threads,
6664
   0, GET_ULONG, REQUIRED_ARG, 20, 0, 16384, 0, 1, 0},
6665
  {"max_error_count", OPT_MAX_ERROR_COUNT,
6666
   "Max number of errors/warnings to store for a statement.",
6667 6668
   (uchar**) &global_system_variables.max_error_count,
   (uchar**) &max_system_variables.max_error_count,
6669
   0, GET_ULONG, REQUIRED_ARG, DEFAULT_ERROR_COUNT, 0, 65535, 0, 1, 0},
6670 6671
  {"max_heap_table_size", OPT_MAX_HEP_TABLE_SIZE,
   "Don't allow creation of heap tables bigger than this.",
6672 6673
   (uchar**) &global_system_variables.max_heap_table_size,
   (uchar**) &max_system_variables.max_heap_table_size, 0, GET_ULL,
6674 6675
   REQUIRED_ARG, 16*1024*1024L, 16384, MAX_MEM_TABLE_SIZE,
   MALLOC_OVERHEAD, 1024, 0},
6676 6677
  {"max_join_size", OPT_MAX_JOIN_SIZE,
   "Joins that are probably going to read more than max_join_size records return an error.",
6678 6679
   (uchar**) &global_system_variables.max_join_size,
   (uchar**) &max_system_variables.max_join_size, 0, GET_HA_ROWS, REQUIRED_ARG,
6680
   HA_POS_ERROR, 1, HA_POS_ERROR, 0, 1, 0},
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6681
   {"max_length_for_sort_data", OPT_MAX_LENGTH_FOR_SORT_DATA,
6682
    "Max number of bytes in sorted records.",
6683 6684
    (uchar**) &global_system_variables.max_length_for_sort_data,
    (uchar**) &max_system_variables.max_length_for_sort_data, 0, GET_ULONG,
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6685
    REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0},
6686
  {"max_prepared_stmt_count", OPT_MAX_PREPARED_STMT_COUNT,
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6687
   "Maximum number of prepared statements in the server.",
6688
   (uchar**) &max_prepared_stmt_count, (uchar**) &max_prepared_stmt_count,
6689
   0, GET_ULONG, REQUIRED_ARG, 16382, 0, 1*1024*1024, 0, 1, 0},
6690
  {"max_relay_log_size", OPT_MAX_RELAY_LOG_SIZE,
6691
   "If non-zero: relay log will be rotated automatically when the size exceeds this value; if zero (the default): when the size exceeds max_binlog_size. 0 excepted, the minimum value for this variable is 4096.",
6692
   (uchar**) &max_relay_log_size, (uchar**) &max_relay_log_size, 0, GET_ULONG,
6693
   REQUIRED_ARG, 0L, 0L, 1024*1024L*1024L, 0, IO_SIZE, 0},
6694 6695
  { "max_seeks_for_key", OPT_MAX_SEEKS_FOR_KEY,
    "Limit assumed max number of seeks when looking up rows based on a key",
6696 6697
    (uchar**) &global_system_variables.max_seeks_for_key,
    (uchar**) &max_system_variables.max_seeks_for_key, 0, GET_ULONG,
6698
    REQUIRED_ARG, ULONG_MAX, 1, ULONG_MAX, 0, 1, 0 },
6699 6700
  {"max_sort_length", OPT_MAX_SORT_LENGTH,
   "The number of bytes to use when sorting BLOB or TEXT values (only the first max_sort_length bytes of each value are used; the rest are ignored).",
6701 6702
   (uchar**) &global_system_variables.max_sort_length,
   (uchar**) &max_system_variables.max_sort_length, 0, GET_ULONG,
6703
   REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0},
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6704 6705
  {"max_sp_recursion_depth", OPT_MAX_SP_RECURSION_DEPTH,
   "Maximum stored procedure recursion depth. (discussed with docs).",
6706 6707
   (uchar**) &global_system_variables.max_sp_recursion_depth,
   (uchar**) &max_system_variables.max_sp_recursion_depth, 0, GET_ULONG,
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6708
   OPT_ARG, 0, 0, 255, 0, 1, 0 },
6709 6710
  {"max_tmp_tables", OPT_MAX_TMP_TABLES,
   "Maximum number of temporary tables a client can keep open at a time.",
6711 6712
   (uchar**) &global_system_variables.max_tmp_tables,
   (uchar**) &max_system_variables.max_tmp_tables, 0, GET_ULONG,
6713
   REQUIRED_ARG, 32, 1, ULONG_MAX, 0, 1, 0},
6714 6715
  {"max_user_connections", OPT_MAX_USER_CONNECTIONS,
   "The maximum number of active connections for a single user (0 = no limit).",
6716
   (uchar**) &max_user_connections, (uchar**) &max_user_connections, 0, GET_UINT,
6717
   REQUIRED_ARG, 0, 0, UINT_MAX, 0, 1, 0},
6718 6719
  {"max_write_lock_count", OPT_MAX_WRITE_LOCK_COUNT,
   "After this many write locks, allow some read locks to run in between.",
6720
   (uchar**) &max_write_lock_count, (uchar**) &max_write_lock_count, 0, GET_ULONG,
6721
   REQUIRED_ARG, ULONG_MAX, 1, ULONG_MAX, 0, 1, 0},
6722 6723 6724 6725
  {"min_examined_row_limit", OPT_MIN_EXAMINED_ROW_LIMIT,
   "Don't log queries which examine less than min_examined_row_limit rows to file.",
   (uchar**) &global_system_variables.min_examined_row_limit,
   (uchar**) &max_system_variables.min_examined_row_limit, 0, GET_ULONG,
6726
  REQUIRED_ARG, 0, 0, ULONG_MAX, 0, 1L, 0},
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6727 6728
  {"multi_range_count", OPT_MULTI_RANGE_COUNT,
   "Number of key ranges to request at once.",
6729 6730
   (uchar**) &global_system_variables.multi_range_count,
   (uchar**) &max_system_variables.multi_range_count, 0,
6731
   GET_ULONG, REQUIRED_ARG, 256, 1, ULONG_MAX, 0, 1, 0},
6732
  {"myisam_block_size", OPT_MYISAM_BLOCK_SIZE,
6733
   "Block size to be used for MyISAM index pages.",
6734 6735
   (uchar**) &opt_myisam_block_size,
   (uchar**) &opt_myisam_block_size, 0, GET_ULONG, REQUIRED_ARG,
6736 6737
   MI_KEY_BLOCK_LENGTH, MI_MIN_KEY_BLOCK_LENGTH, MI_MAX_KEY_BLOCK_LENGTH,
   0, MI_MIN_KEY_BLOCK_LENGTH, 0},
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6738 6739
  {"myisam_data_pointer_size", OPT_MYISAM_DATA_POINTER_SIZE,
   "Default pointer size to be used for MyISAM tables.",
6740 6741
   (uchar**) &myisam_data_pointer_size,
   (uchar**) &myisam_data_pointer_size, 0, GET_ULONG, REQUIRED_ARG,
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6742
   6, 2, 7, 0, 1, 0},
6743
  {"myisam_max_extra_sort_file_size", OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
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6744
   "Deprecated option",
6745 6746
   (uchar**) &global_system_variables.myisam_max_extra_sort_file_size,
   (uchar**) &max_system_variables.myisam_max_extra_sort_file_size,
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6747
   0, GET_ULL, REQUIRED_ARG, (ulonglong) MI_MAX_TEMP_LENGTH,
6748
   0, (ulonglong) MAX_FILE_SIZE, 0, 1, 0},
6749
  {"myisam_max_sort_file_size", OPT_MYISAM_MAX_SORT_FILE_SIZE,
6750
   "Don't use the fast sort index method to created index if the temporary file would get bigger than this.",
6751 6752
   (uchar**) &global_system_variables.myisam_max_sort_file_size,
   (uchar**) &max_system_variables.myisam_max_sort_file_size, 0,
6753 6754
   GET_ULL, REQUIRED_ARG, (longlong) LONG_MAX, 0, (ulonglong) MAX_FILE_SIZE,
   0, 1024*1024, 0},
6755 6756
  {"myisam_repair_threads", OPT_MYISAM_REPAIR_THREADS,
   "Number of threads to use when repairing MyISAM tables. The value of 1 disables parallel repair.",
6757 6758
   (uchar**) &global_system_variables.myisam_repair_threads,
   (uchar**) &max_system_variables.myisam_repair_threads, 0,
6759
   GET_ULONG, REQUIRED_ARG, 1, 1, ULONG_MAX, 0, 1, 0},
6760 6761
  {"myisam_sort_buffer_size", OPT_MYISAM_SORT_BUFFER_SIZE,
   "The buffer that is allocated when sorting the index when doing a REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE.",
6762 6763
   (uchar**) &global_system_variables.myisam_sort_buff_size,
   (uchar**) &max_system_variables.myisam_sort_buff_size, 0,
6764
   GET_ULONG, REQUIRED_ARG, 8192*1024, 4, ~0L, 0, 1, 0},
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6765
  {"myisam_use_mmap", OPT_MYISAM_USE_MMAP,
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6766
   "Use memory mapping for reading and writing MyISAM tables",
6767 6768
   (uchar**) &opt_myisam_use_mmap,
   (uchar**) &opt_myisam_use_mmap, 0, GET_BOOL, NO_ARG, 0, 
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6769
    0, 0, 0, 0, 0},
6770 6771
  {"myisam_stats_method", OPT_MYISAM_STATS_METHOD,
   "Specifies how MyISAM index statistics collection code should threat NULLs. "
6772 6773
   "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), "
   "\"nulls_equal\" (emulate 4.0 behavior), and \"nulls_ignored\".",
6774
   (uchar**) &myisam_stats_method_str, (uchar**) &myisam_stats_method_str, 0,
6775
    GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6776
  {"net_buffer_length", OPT_NET_BUFFER_LENGTH,
6777
   "Buffer length for TCP/IP and socket communication.",
6778 6779
   (uchar**) &global_system_variables.net_buffer_length,
   (uchar**) &max_system_variables.net_buffer_length, 0, GET_ULONG,
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6780
   REQUIRED_ARG, 16384, 1024, 1024*1024L, 0, 1024, 0},
6781 6782
  {"net_read_timeout", OPT_NET_READ_TIMEOUT,
   "Number of seconds to wait for more data from a connection before aborting the read.",
6783 6784
   (uchar**) &global_system_variables.net_read_timeout,
   (uchar**) &max_system_variables.net_read_timeout, 0, GET_ULONG,
6785
   REQUIRED_ARG, NET_READ_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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6786 6787
  {"net_retry_count", OPT_NET_RETRY_COUNT,
   "If a read on a communication port is interrupted, retry this many times before giving up.",
6788 6789
   (uchar**) &global_system_variables.net_retry_count,
   (uchar**) &max_system_variables.net_retry_count,0,
6790
   GET_ULONG, REQUIRED_ARG, MYSQLD_NET_RETRY_COUNT, 1, ULONG_MAX, 0, 1, 0},
6791 6792
  {"net_write_timeout", OPT_NET_WRITE_TIMEOUT,
   "Number of seconds to wait for a block to be written to a connection  before aborting the write.",
6793 6794
   (uchar**) &global_system_variables.net_write_timeout,
   (uchar**) &max_system_variables.net_write_timeout, 0, GET_ULONG,
6795
   REQUIRED_ARG, NET_WRITE_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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6796
  { "old", OPT_OLD_MODE, "Use compatible behavior.", 
6797 6798
    (uchar**) &global_system_variables.old_mode,
    (uchar**) &max_system_variables.old_mode, 0, GET_BOOL, NO_ARG, 
6799
    0, 0, 0, 0, 0, 0},
6800 6801
  {"open_files_limit", OPT_OPEN_FILES_LIMIT,
   "If this is not 0, then mysqld will use this value to reserve file descriptors to use with setrlimit(). If this value is 0 then mysqld will reserve max_connections*5 or max_connections + table_cache*2 (whichever is larger) number of files.",
6802
   (uchar**) &open_files_limit, (uchar**) &open_files_limit, 0, GET_ULONG,
6803
   REQUIRED_ARG, 0, 0, OS_FILE_LIMIT, 0, 1, 0},
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6804 6805
  {"optimizer_prune_level", OPT_OPTIMIZER_PRUNE_LEVEL,
   "Controls the heuristic(s) applied during query optimization to prune less-promising partial plans from the optimizer search space. Meaning: 0 - do not apply any heuristic, thus perform exhaustive search; 1 - prune plans based on number of retrieved rows.",
6806 6807
   (uchar**) &global_system_variables.optimizer_prune_level,
   (uchar**) &max_system_variables.optimizer_prune_level,
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6808 6809 6810
   0, GET_ULONG, OPT_ARG, 1, 0, 1, 0, 1, 0},
  {"optimizer_search_depth", OPT_OPTIMIZER_SEARCH_DEPTH,
   "Maximum depth of search performed by the query optimizer. Values larger than the number of relations in a query result in better query plans, but take longer to compile a query. Smaller values than the number of tables in a relation result in faster optimization, but may produce very bad query plans. If set to 0, the system will automatically pick a reasonable value; if set to MAX_TABLES+2, the optimizer will switch to the original find_best (used for testing/comparison).",
6811 6812
   (uchar**) &global_system_variables.optimizer_search_depth,
   (uchar**) &max_system_variables.optimizer_search_depth,
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6813
   0, GET_ULONG, OPT_ARG, MAX_TABLES+1, 0, MAX_TABLES+2, 0, 1, 0},
6814
  {"optimizer_switch", OPT_OPTIMIZER_SWITCH,
6815 6816 6817 6818 6819
   "optimizer_switch=option=val[,option=val...], where option={index_merge, "
   "index_merge_union, index_merge_sort_union, index_merge_intersection} and "
   "val={on, off, default}.",
   (uchar**) &optimizer_switch_str, (uchar**) &optimizer_switch_str, 0, GET_STR, REQUIRED_ARG, 
   /*OPTIMIZER_SWITCH_DEFAULT*/0,
6820
   0, 0, 0, 0, 0},
6821 6822
  {"plugin_dir", OPT_PLUGIN_DIR,
   "Directory for plugins.",
6823
   (uchar**) &opt_plugin_dir_ptr, (uchar**) &opt_plugin_dir_ptr, 0,
6824
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6825
  {"plugin-load", OPT_PLUGIN_LOAD,
6826
   "Optional semicolon-separated list of plugins to load, where each plugin is "
6827 6828
   "identified as name=library, where name is the plugin name and library "
   "is the plugin library in plugin_dir.",
6829
   (uchar**) &opt_plugin_load, (uchar**) &opt_plugin_load, 0,
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6830
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6831
  {"preload_buffer_size", OPT_PRELOAD_BUFFER_SIZE,
6832 6833 6834 6835
   "The size of the buffer that is allocated when preloading indexes",
   (uchar**) &global_system_variables.preload_buff_size,
   (uchar**) &max_system_variables.preload_buff_size, 0, GET_ULONG,
   REQUIRED_ARG, 32*1024L, 1024, 1024*1024*1024L, 0, 1, 0},
6836 6837
  {"query_alloc_block_size", OPT_QUERY_ALLOC_BLOCK_SIZE,
   "Allocation block size for query parsing and execution",
6838 6839
   (uchar**) &global_system_variables.query_alloc_block_size,
   (uchar**) &max_system_variables.query_alloc_block_size, 0, GET_ULONG,
6840
   REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ULONG_MAX, 0, 1024, 0},
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6841
#ifdef HAVE_QUERY_CACHE
6842 6843
  {"query_cache_limit", OPT_QUERY_CACHE_LIMIT,
   "Don't cache results that are bigger than this.",
6844
   (uchar**) &query_cache_limit, (uchar**) &query_cache_limit, 0, GET_ULONG,
6845
   REQUIRED_ARG, 1024*1024L, 0, ULONG_MAX, 0, 1, 0},
6846 6847
  {"query_cache_min_res_unit", OPT_QUERY_CACHE_MIN_RES_UNIT,
   "minimal size of unit in wich space for results is allocated (last unit will be trimed after writing all result data.",
6848
   (uchar**) &query_cache_min_res_unit, (uchar**) &query_cache_min_res_unit,
6849
   0, GET_ULONG, REQUIRED_ARG, QUERY_CACHE_MIN_RESULT_DATA_SIZE,
6850
   0, ULONG_MAX, 0, 1, 0},
6851
#endif /*HAVE_QUERY_CACHE*/
6852 6853
  {"query_cache_size", OPT_QUERY_CACHE_SIZE,
   "The memory allocated to store results from old queries.",
6854
   (uchar**) &query_cache_size, (uchar**) &query_cache_size, 0, GET_ULONG,
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6855
   REQUIRED_ARG, 0, 0, (longlong) ULONG_MAX, 0, 1024, 0},
6856
#ifdef HAVE_QUERY_CACHE
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6857
  {"query_cache_type", OPT_QUERY_CACHE_TYPE,
6858
   "0 = OFF = Don't cache or retrieve results. 1 = ON = Cache all results except SELECT SQL_NO_CACHE ... queries. 2 = DEMAND = Cache only SELECT SQL_CACHE ... queries.",
6859 6860
   (uchar**) &global_system_variables.query_cache_type,
   (uchar**) &max_system_variables.query_cache_type,
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6861
   0, GET_ULONG, REQUIRED_ARG, 1, 0, 2, 0, 1, 0},
6862 6863
  {"query_cache_wlock_invalidate", OPT_QUERY_CACHE_WLOCK_INVALIDATE,
   "Invalidate queries in query cache on LOCK for write",
6864 6865
   (uchar**) &global_system_variables.query_cache_wlock_invalidate,
   (uchar**) &max_system_variables.query_cache_wlock_invalidate,
6866 6867
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
#endif /*HAVE_QUERY_CACHE*/
6868 6869
  {"query_prealloc_size", OPT_QUERY_PREALLOC_SIZE,
   "Persistent buffer for query parsing and execution",
6870 6871
   (uchar**) &global_system_variables.query_prealloc_size,
   (uchar**) &max_system_variables.query_prealloc_size, 0, GET_ULONG,
6872
   REQUIRED_ARG, QUERY_ALLOC_PREALLOC_SIZE, QUERY_ALLOC_PREALLOC_SIZE,
6873
   ULONG_MAX, 0, 1024, 0},
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6874 6875
  {"range_alloc_block_size", OPT_RANGE_ALLOC_BLOCK_SIZE,
   "Allocation block size for storing ranges during optimization",
6876 6877
   (uchar**) &global_system_variables.range_alloc_block_size,
   (uchar**) &max_system_variables.range_alloc_block_size, 0, GET_ULONG,
6878 6879
   REQUIRED_ARG, RANGE_ALLOC_BLOCK_SIZE, RANGE_ALLOC_BLOCK_SIZE, ULONG_MAX,
   0, 1024, 0},
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6880
  {"read_buffer_size", OPT_RECORD_BUFFER,
6881
   "Each thread that does a sequential scan allocates a buffer of this size for each table it scans. If you do many sequential scans, you may want to increase this value.",
6882 6883
   (uchar**) &global_system_variables.read_buff_size,
   (uchar**) &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG,
6884
   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE,
6885
   0},
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6886
  {"read_only", OPT_READONLY,
6887
   "Make all non-temporary tables read-only, with the exception for replication (slave) threads and users with the SUPER privilege",
6888 6889
   (uchar**) &opt_readonly,
   (uchar**) &opt_readonly,
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6890
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
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6891
  {"read_rnd_buffer_size", OPT_RECORD_RND_BUFFER,
6892
   "When reading rows in sorted order after a sort, the rows are read through this buffer to avoid a disk seeks. If not set, then it's set to the value of record_buffer.",
6893 6894
   (uchar**) &global_system_variables.read_rnd_buff_size,
   (uchar**) &max_system_variables.read_rnd_buff_size, 0,
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6895
   GET_ULONG, REQUIRED_ARG, 256*1024L, IO_SIZE*2+MALLOC_OVERHEAD,
6896
   INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0},
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6897 6898
  {"record_buffer", OPT_RECORD_BUFFER,
   "Alias for read_buffer_size",
6899 6900
   (uchar**) &global_system_variables.read_buff_size,
   (uchar**) &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG,
6901
   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0},
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6902
#ifdef HAVE_REPLICATION
6903 6904
  {"relay_log_purge", OPT_RELAY_LOG_PURGE,
   "0 = do not purge relay logs. 1 = purge them as soon as they are no more needed.",
6905 6906
   (uchar**) &relay_log_purge,
   (uchar**) &relay_log_purge, 0, GET_BOOL, NO_ARG,
6907
   1, 0, 1, 0, 1, 0},
6908 6909 6910 6911 6912 6913 6914
  {"relay_log_recovery", OPT_RELAY_LOG_RECOVERY,
   "Enables automatic relay log recovery right after the database startup, "
   "which means that the IO Thread starts re-fetching from the master " 
   "right after the last transaction processed.",
   (uchar**) &relay_log_recovery,
   (uchar**) &relay_log_recovery, 0, GET_BOOL, NO_ARG,
   0, 0, 1, 0, 1, 0},
6915
  {"relay_log_space_limit", OPT_RELAY_LOG_SPACE_LIMIT,
6916
   "Maximum space to use for all relay logs.",
6917 6918
   (uchar**) &relay_log_space_limit,
   (uchar**) &relay_log_space_limit, 0, GET_ULL, REQUIRED_ARG, 0L, 0L,
6919
   (longlong) ULONG_MAX, 0, 1, 0},
6920
  {"slave_compressed_protocol", OPT_SLAVE_COMPRESSED_PROTOCOL,
6921
   "Use compression on master/slave protocol.",
6922 6923
   (uchar**) &opt_slave_compressed_protocol,
   (uchar**) &opt_slave_compressed_protocol,
6924
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
6925
  {"slave_net_timeout", OPT_SLAVE_NET_TIMEOUT,
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6926
   "Number of seconds to wait for more data from a master/slave connection before aborting the read.",
6927
   (uchar**) &slave_net_timeout, (uchar**) &slave_net_timeout, 0,
6928
   GET_ULONG, REQUIRED_ARG, SLAVE_NET_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
6929 6930 6931 6932
  {"slave_transaction_retries", OPT_SLAVE_TRANS_RETRIES,
   "Number of times the slave SQL thread will retry a transaction in case "
   "it failed with a deadlock or elapsed lock wait timeout, "
   "before giving up and stopping.",
6933
   (uchar**) &slave_trans_retries, (uchar**) &slave_trans_retries, 0,
6934
   GET_ULONG, REQUIRED_ARG, 10L, 0L, (longlong) ULONG_MAX, 0, 1, 0},
6935
#endif /* HAVE_REPLICATION */
6936 6937
  {"slow_launch_time", OPT_SLOW_LAUNCH_TIME,
   "If creating the thread takes longer than this value (in seconds), the Slow_launch_threads counter will be incremented.",
6938
   (uchar**) &slow_launch_time, (uchar**) &slow_launch_time, 0, GET_ULONG,
6939
   REQUIRED_ARG, 2L, 0L, LONG_TIMEOUT, 0, 1, 0},
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6940
  {"sort_buffer_size", OPT_SORT_BUFFER,
6941
   "Each thread that needs to do a sort allocates a buffer of this size.",
6942 6943
   (uchar**) &global_system_variables.sortbuff_size,
   (uchar**) &max_system_variables.sortbuff_size, 0, GET_ULONG, REQUIRED_ARG,
6944 6945
   MAX_SORT_MEMORY, MIN_SORT_MEMORY+MALLOC_OVERHEAD*2, ~0L, MALLOC_OVERHEAD,
   1, 0},
6946
  {"sync-binlog", OPT_SYNC_BINLOG,
6947 6948
   "Synchronously flush binary log to disk after every #th event. "
   "Use 0 (default) to disable synchronous flushing.",
6949 6950 6951 6952 6953 6954 6955
   (uchar**) &sync_binlog_period, (uchar**) &sync_binlog_period, 0, GET_UINT,
   REQUIRED_ARG, 0, 0, (longlong) UINT_MAX, 0, 1, 0},
  {"sync-relay-log", OPT_SYNC_RELAY_LOG,
   "Synchronously flush relay log to disk after every #th event. "
   "Use 0 (default) to disable synchronous flushing.",
   (uchar**) &sync_relaylog_period, (uchar**) &sync_relaylog_period, 0, GET_UINT,
   REQUIRED_ARG, 0, 0, (longlong) UINT_MAX, 0, 1, 0},
6956 6957 6958 6959 6960 6961 6962 6963 6964 6965
  {"sync-relay-log-info", OPT_SYNC_RELAY_LOG_INFO,
   "Synchronously flush relay log info to disk after #th transaction. "
   "Use 0 (default) to disable synchronous flushing.",
   (uchar**) &sync_relayloginfo_period, (uchar**) &sync_relayloginfo_period, 0, GET_UINT,
   REQUIRED_ARG, 0, 0, (longlong) UINT_MAX, 0, 1, 0},
  {"sync-master-info", OPT_SYNC_MASTER_INFO,
   "Synchronously flush master info to disk after every #th event. "
   "Use 0 (default) to disable synchronous flushing.",
   (uchar**) &sync_masterinfo_period, (uchar**) &sync_masterinfo_period, 0, GET_UINT,
   REQUIRED_ARG, 0, 0, (longlong) UINT_MAX, 0, 1, 0},
6966
  {"sync-frm", OPT_SYNC_FRM, "Sync .frm to disk on create. Enabled by default.",
6967
   (uchar**) &opt_sync_frm, (uchar**) &opt_sync_frm, 0, GET_BOOL, NO_ARG, 1, 0,
6968
   0, 0, 0, 0},
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  {"table_cache", OPT_TABLE_OPEN_CACHE,
   "Deprecated; use --table_open_cache instead.",
6971
   (uchar**) &table_cache_size, (uchar**) &table_cache_size, 0, GET_ULONG,
6972
   REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0},
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  {"table_definition_cache", OPT_TABLE_DEF_CACHE,
   "The number of cached table definitions.",
6975
   (uchar**) &table_def_size, (uchar**) &table_def_size,
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   0, GET_ULONG, REQUIRED_ARG, TABLE_DEF_CACHE_DEFAULT, TABLE_DEF_CACHE_MIN,
   512*1024L, 0, 1, 0},
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  {"table_open_cache", OPT_TABLE_OPEN_CACHE,
   "The number of cached open tables.",
6980
   (uchar**) &table_cache_size, (uchar**) &table_cache_size, 0, GET_ULONG,
6981
   REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0},
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  {"table_lock_wait_timeout", OPT_TABLE_LOCK_WAIT_TIMEOUT,
   "Timeout in seconds to wait for a table level lock before returning an "
   "error. Used only if the connection has active cursors.",
6985
   (uchar**) &table_lock_wait_timeout, (uchar**) &table_lock_wait_timeout,
6986
   0, GET_ULONG, REQUIRED_ARG, 50, 1, 1024 * 1024 * 1024, 0, 1, 0},
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  {"thread_cache_size", OPT_THREAD_CACHE_SIZE,
   "How many threads we should keep in a cache for reuse.",
6989
   (uchar**) &thread_cache_size, (uchar**) &thread_cache_size, 0, GET_ULONG,
6990
   REQUIRED_ARG, 0, 0, 16384, 0, 1, 0},
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  {"thread_concurrency", OPT_THREAD_CONCURRENCY,
   "Permits the application to give the threads system a hint for the desired number of threads that should be run at the same time.",
6993
   (uchar**) &concurrency, (uchar**) &concurrency, 0, GET_ULONG, REQUIRED_ARG,
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6994
   DEFAULT_CONCURRENCY, 1, 512, 0, 1, 0},
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#if HAVE_POOL_OF_THREADS == 1
  {"thread_pool_size", OPT_THREAD_CACHE_SIZE,
   "How many threads we should create to handle query requests in case of 'thread_handling=pool-of-threads'",
6998
   (uchar**) &thread_pool_size, (uchar**) &thread_pool_size, 0, GET_ULONG,
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   REQUIRED_ARG, 20, 1, 16384, 0, 1, 0},
#endif
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7001
  {"thread_stack", OPT_THREAD_STACK,
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   "The stack size for each thread.", (uchar**) &my_thread_stack_size,
   (uchar**) &my_thread_stack_size, 0, GET_ULONG, REQUIRED_ARG,DEFAULT_THREAD_STACK,
7004
   1024L*128L, ULONG_MAX, 0, 1024, 0},
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  { "time_format", OPT_TIME_FORMAT,
    "The TIME format (for future).",
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    (uchar**) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
    (uchar**) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
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7009
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
7010
  {"tmp_table_size", OPT_TMP_TABLE_SIZE,
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   "If an internal in-memory temporary table exceeds this size, MySQL will"
   " automatically convert it to an on-disk MyISAM table.",
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   (uchar**) &global_system_variables.tmp_table_size,
   (uchar**) &max_system_variables.tmp_table_size, 0, GET_ULL,
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7015
   REQUIRED_ARG, 16*1024*1024L, 1024, MAX_MEM_TABLE_SIZE, 0, 1, 0},
7016
  {"transaction_alloc_block_size", OPT_TRANS_ALLOC_BLOCK_SIZE,
7017
   "Allocation block size for transactions to be stored in binary log",
7018 7019
   (uchar**) &global_system_variables.trans_alloc_block_size,
   (uchar**) &max_system_variables.trans_alloc_block_size, 0, GET_ULONG,
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   REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ULONG_MAX, 0, 1024, 0},
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  {"transaction_prealloc_size", OPT_TRANS_PREALLOC_SIZE,
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   "Persistent buffer for transactions to be stored in binary log",
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   (uchar**) &global_system_variables.trans_prealloc_size,
   (uchar**) &max_system_variables.trans_prealloc_size, 0, GET_ULONG,
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   REQUIRED_ARG, TRANS_ALLOC_PREALLOC_SIZE, 1024, ULONG_MAX, 0, 1024, 0},
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  {"thread_handling", OPT_THREAD_HANDLING,
   "Define threads usage for handling queries:  "
   "one-thread-per-connection or no-threads", 0, 0,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"updatable_views_with_limit", OPT_UPDATABLE_VIEWS_WITH_LIMIT,
   "1 = YES = Don't issue an error message (warning only) if a VIEW without presence of a key of the underlying table is used in queries with a LIMIT clause for updating. 0 = NO = Prohibit update of a VIEW, which does not contain a key of the underlying table and the query uses a LIMIT clause (usually get from GUI tools).",
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   (uchar**) &global_system_variables.updatable_views_with_limit,
   (uchar**) &max_system_variables.updatable_views_with_limit,
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7034
   0, GET_ULONG, REQUIRED_ARG, 1, 0, 1, 0, 1, 0},
7035
  {"wait_timeout", OPT_WAIT_TIMEOUT,
7036
   "The number of seconds the server waits for activity on a connection before closing it.",
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   (uchar**) &global_system_variables.net_wait_timeout,
   (uchar**) &max_system_variables.net_wait_timeout, 0, GET_ULONG,
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   REQUIRED_ARG, NET_WAIT_TIMEOUT, 1, IF_WIN(INT_MAX32/1000, LONG_TIMEOUT),
   0, 1, 0},
7041
  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
7042
};
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7043

7044

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static int show_queries(THD *thd, SHOW_VAR *var, char *buff)
{
  var->type= SHOW_LONGLONG;
  var->value= (char *)&thd->query_id;
  return 0;
}


7053
static int show_net_compression(THD *thd, SHOW_VAR *var, char *buff)
7054
{
7055
  var->type= SHOW_MY_BOOL;
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  var->value= (char *)&thd->net.compress;
  return 0;
}

7060
static int show_starttime(THD *thd, SHOW_VAR *var, char *buff)
7061
{
7062
  var->type= SHOW_LONG;
7063
  var->value= buff;
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7064
  *((long *)buff)= (long) (thd->query_start() - server_start_time);
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  return 0;
}

7068
#ifdef COMMUNITY_SERVER
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static int show_flushstatustime(THD *thd, SHOW_VAR *var, char *buff)
{
  var->type= SHOW_LONG;
  var->value= buff;
  *((long *)buff)= (long) (thd->query_start() - flush_status_time);
  return 0;
}
7076
#endif
7077

7078
#ifdef HAVE_REPLICATION
7079
static int show_rpl_status(THD *thd, SHOW_VAR *var, char *buff)
7080
{
7081
  var->type= SHOW_CHAR;
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  var->value= const_cast<char*>(rpl_status_type[(int)rpl_status]);
  return 0;
}

7086
static int show_slave_running(THD *thd, SHOW_VAR *var, char *buff)
7087
{
7088
  var->type= SHOW_MY_BOOL;
7089
  pthread_mutex_lock(&LOCK_active_mi);
7090
  var->value= buff;
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  *((my_bool *)buff)= (my_bool) (active_mi && 
                                 active_mi->slave_running == MYSQL_SLAVE_RUN_CONNECT &&
7093
                                 active_mi->rli.slave_running);
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  pthread_mutex_unlock(&LOCK_active_mi);
  return 0;
}

7098
static int show_slave_retried_trans(THD *thd, SHOW_VAR *var, char *buff)
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{
  /*
    TODO: with multimaster, have one such counter per line in
    SHOW SLAVE STATUS, and have the sum over all lines here.
  */
  pthread_mutex_lock(&LOCK_active_mi);
  if (active_mi)
  {
7107
    var->type= SHOW_LONG;
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    var->value= buff;
    pthread_mutex_lock(&active_mi->rli.data_lock);
    *((long *)buff)= (long)active_mi->rli.retried_trans;
    pthread_mutex_unlock(&active_mi->rli.data_lock);
  }
  else
7114
    var->type= SHOW_UNDEF;
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  pthread_mutex_unlock(&LOCK_active_mi);
  return 0;
}
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static int show_slave_received_heartbeats(THD *thd, SHOW_VAR *var, char *buff)
{
  pthread_mutex_lock(&LOCK_active_mi);
  if (active_mi)
  {
    var->type= SHOW_LONGLONG;
    var->value= buff;
    pthread_mutex_lock(&active_mi->rli.data_lock);
    *((longlong *)buff)= active_mi->received_heartbeats;
    pthread_mutex_unlock(&active_mi->rli.data_lock);
  }
  else
    var->type= SHOW_UNDEF;
  pthread_mutex_unlock(&LOCK_active_mi);
  return 0;
}

static int show_heartbeat_period(THD *thd, SHOW_VAR *var, char *buff)
{
  pthread_mutex_lock(&LOCK_active_mi);
  if (active_mi)
  {
    var->type= SHOW_CHAR;
    var->value= buff;
    my_sprintf(buff, (buff, "%.3f",active_mi->heartbeat_period));
  }
  else
    var->type= SHOW_UNDEF;
  pthread_mutex_unlock(&LOCK_active_mi);
  return 0;
}


7152 7153
#endif /* HAVE_REPLICATION */

7154
static int show_open_tables(THD *thd, SHOW_VAR *var, char *buff)
7155
{
7156
  var->type= SHOW_LONG;
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  var->value= buff;
  *((long *)buff)= (long)cached_open_tables();
  return 0;
}

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static int show_prepared_stmt_count(THD *thd, SHOW_VAR *var, char *buff)
{
  var->type= SHOW_LONG;
  var->value= buff;
  pthread_mutex_lock(&LOCK_prepared_stmt_count);
  *((long *)buff)= (long)prepared_stmt_count;
  pthread_mutex_unlock(&LOCK_prepared_stmt_count);
  return 0;
}

7172
static int show_table_definitions(THD *thd, SHOW_VAR *var, char *buff)
7173
{
7174
  var->type= SHOW_LONG;
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  var->value= buff;
  *((long *)buff)= (long)cached_table_definitions();
  return 0;
}

#ifdef HAVE_OPENSSL
/* Functions relying on CTX */
7182
static int show_ssl_ctx_sess_accept(THD *thd, SHOW_VAR *var, char *buff)
7183
{
7184
  var->type= SHOW_LONG;
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  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept(ssl_acceptor_fd->ssl_context));
  return 0;
}

7191
static int show_ssl_ctx_sess_accept_good(THD *thd, SHOW_VAR *var, char *buff)
7192
{
7193
  var->type= SHOW_LONG;
7194 7195 7196 7197 7198 7199
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

7200
static int show_ssl_ctx_sess_connect_good(THD *thd, SHOW_VAR *var, char *buff)
7201
{
7202
  var->type= SHOW_LONG;
7203 7204 7205 7206 7207 7208
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

7209
static int show_ssl_ctx_sess_accept_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
7210
{
7211
  var->type= SHOW_LONG;
7212 7213 7214 7215 7216 7217
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

7218
static int show_ssl_ctx_sess_connect_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
7219
{
7220
  var->type= SHOW_LONG;
7221 7222 7223 7224 7225 7226
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

7227
static int show_ssl_ctx_sess_cb_hits(THD *thd, SHOW_VAR *var, char *buff)
7228
{
7229
  var->type= SHOW_LONG;
7230 7231 7232 7233 7234 7235
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cb_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

7236
static int show_ssl_ctx_sess_hits(THD *thd, SHOW_VAR *var, char *buff)
7237
{
7238
  var->type= SHOW_LONG;
7239 7240 7241 7242 7243 7244
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

7245
static int show_ssl_ctx_sess_cache_full(THD *thd, SHOW_VAR *var, char *buff)
7246
{
7247
  var->type= SHOW_LONG;
7248 7249 7250 7251 7252 7253
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cache_full(ssl_acceptor_fd->ssl_context));
  return 0;
}

7254
static int show_ssl_ctx_sess_misses(THD *thd, SHOW_VAR *var, char *buff)
7255
{
7256
  var->type= SHOW_LONG;
7257 7258 7259 7260 7261 7262
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_misses(ssl_acceptor_fd->ssl_context));
  return 0;
}

7263
static int show_ssl_ctx_sess_timeouts(THD *thd, SHOW_VAR *var, char *buff)
7264
{
7265
  var->type= SHOW_LONG;
7266 7267 7268 7269 7270 7271
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context));
  return 0;
}

7272
static int show_ssl_ctx_sess_number(THD *thd, SHOW_VAR *var, char *buff)
7273
{
7274
  var->type= SHOW_LONG;
7275 7276 7277 7278 7279 7280
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context));
  return 0;
}

7281
static int show_ssl_ctx_sess_connect(THD *thd, SHOW_VAR *var, char *buff)
7282
{
7283
  var->type= SHOW_LONG;
7284 7285 7286 7287 7288 7289
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context));
  return 0;
}

7290
static int show_ssl_ctx_sess_get_cache_size(THD *thd, SHOW_VAR *var, char *buff)
7291
{
7292
  var->type= SHOW_LONG;
7293 7294 7295 7296 7297 7298
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context));
  return 0;
}

7299
static int show_ssl_ctx_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
7300
{
7301
  var->type= SHOW_LONG;
7302 7303 7304 7305 7306 7307
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context));
  return 0;
}

7308
static int show_ssl_ctx_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
7309
{
7310
  var->type= SHOW_LONG;
7311 7312 7313 7314 7315 7316
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context));
  return 0;
}

7317
static int show_ssl_ctx_get_session_cache_mode(THD *thd, SHOW_VAR *var, char *buff)
7318
{
7319
  var->type= SHOW_CHAR;
7320
  if (!ssl_acceptor_fd)
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7321
    var->value= const_cast<char*>("NONE");
7322 7323 7324 7325
  else
    switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
    {
    case SSL_SESS_CACHE_OFF:
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7326
      var->value= const_cast<char*>("OFF"); break;
7327
    case SSL_SESS_CACHE_CLIENT:
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7328
      var->value= const_cast<char*>("CLIENT"); break;
7329
    case SSL_SESS_CACHE_SERVER:
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7330
      var->value= const_cast<char*>("SERVER"); break;
7331
    case SSL_SESS_CACHE_BOTH:
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7332
      var->value= const_cast<char*>("BOTH"); break;
7333
    case SSL_SESS_CACHE_NO_AUTO_CLEAR:
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7334
      var->value= const_cast<char*>("NO_AUTO_CLEAR"); break;
7335
    case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
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7336
      var->value= const_cast<char*>("NO_INTERNAL_LOOKUP"); break;
7337
    default:
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7338
      var->value= const_cast<char*>("Unknown"); break;
7339 7340 7341 7342
    }
  return 0;
}

7343 7344 7345 7346 7347 7348 7349
/*
   Functions relying on SSL 
   Note: In the show_ssl_* functions, we need to check if we have a
         valid vio-object since this isn't always true, specifically
         when session_status or global_status is requested from
         inside an Event.
 */
7350
static int show_ssl_get_version(THD *thd, SHOW_VAR *var, char *buff)
7351
{
7352
  var->type= SHOW_CHAR;
7353 7354 7355
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    var->value= const_cast<char*>(SSL_get_version((SSL*) thd->net.vio->ssl_arg));
  else
7356
    var->value= (char *)"";
7357 7358 7359
  return 0;
}

7360
static int show_ssl_session_reused(THD *thd, SHOW_VAR *var, char *buff)
7361
{
7362
  var->type= SHOW_LONG;
7363
  var->value= buff;
7364 7365 7366 7367
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_session_reused((SSL*) thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
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7368
  return 0;
7369 7370
}

7371
static int show_ssl_get_default_timeout(THD *thd, SHOW_VAR *var, char *buff)
7372
{
7373
  var->type= SHOW_LONG;
7374
  var->value= buff;
7375 7376 7377 7378
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_get_default_timeout((SSL*)thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
7379 7380 7381
  return 0;
}

7382
static int show_ssl_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
7383
{
7384
  var->type= SHOW_LONG;
7385
  var->value= buff;
7386 7387 7388 7389
  if( thd->net.vio && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_get_verify_mode((SSL*)thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
7390 7391 7392
  return 0;
}

7393
static int show_ssl_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
7394
{
7395
  var->type= SHOW_LONG;
7396
  var->value= buff;
7397 7398 7399 7400
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_get_verify_depth((SSL*)thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
7401 7402 7403
  return 0;
}

7404
static int show_ssl_get_cipher(THD *thd, SHOW_VAR *var, char *buff)
7405
{
7406
  var->type= SHOW_CHAR;
7407 7408 7409
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    var->value= const_cast<char*>(SSL_get_cipher((SSL*) thd->net.vio->ssl_arg));
  else
7410
    var->value= (char *)"";
7411 7412 7413
  return 0;
}

7414
static int show_ssl_get_cipher_list(THD *thd, SHOW_VAR *var, char *buff)
7415
{
7416
  var->type= SHOW_CHAR;
7417
  var->value= buff;
7418
  if (thd->vio_ok() && thd->net.vio->ssl_arg)
7419 7420 7421
  {
    int i;
    const char *p;
7422 7423 7424
    char *end= buff + SHOW_VAR_FUNC_BUFF_SIZE;
    for (i=0; (p= SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i)) &&
               buff < end; i++)
7425
    {
7426
      buff= strnmov(buff, p, end-buff-1);
7427 7428 7429 7430 7431 7432 7433 7434 7435 7436 7437
      *buff++= ':';
    }
    if (i)
      buff--;
  }
  *buff=0;
  return 0;
}

#endif /* HAVE_OPENSSL */

7438

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/*
  Variables shown by SHOW STATUS in alphabetical order
*/

7443
SHOW_VAR status_vars[]= {
7444 7445
  {"Aborted_clients",          (char*) &aborted_threads,        SHOW_LONG},
  {"Aborted_connects",         (char*) &aborted_connects,       SHOW_LONG},
7446 7447
  {"Binlog_cache_disk_use",    (char*) &binlog_cache_disk_use,  SHOW_LONG},
  {"Binlog_cache_use",         (char*) &binlog_cache_use,       SHOW_LONG},
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  {"Bytes_received",           (char*) offsetof(STATUS_VAR, bytes_received), SHOW_LONGLONG_STATUS},
  {"Bytes_sent",               (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONGLONG_STATUS},
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  {"Com",                      (char*) com_status_vars, SHOW_ARRAY},
7451
  {"Compression",              (char*) &show_net_compression, SHOW_FUNC},
7452
  {"Connections",              (char*) &thread_id,              SHOW_LONG_NOFLUSH},
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  {"Created_tmp_disk_tables",  (char*) offsetof(STATUS_VAR, created_tmp_disk_tables), SHOW_LONG_STATUS},
7454
  {"Created_tmp_files",	       (char*) &my_tmp_file_created,	SHOW_LONG},
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  {"Created_tmp_tables",       (char*) offsetof(STATUS_VAR, created_tmp_tables), SHOW_LONG_STATUS},
7456
  {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
7457
  {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG_NOFLUSH},
7458
  {"Delayed_writes",           (char*) &delayed_insert_writes,  SHOW_LONG},
7459
  {"Flush_commands",           (char*) &refresh_version,        SHOW_LONG_NOFLUSH},
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  {"Handler_commit",           (char*) offsetof(STATUS_VAR, ha_commit_count), SHOW_LONG_STATUS},
  {"Handler_delete",           (char*) offsetof(STATUS_VAR, ha_delete_count), SHOW_LONG_STATUS},
  {"Handler_discover",         (char*) offsetof(STATUS_VAR, ha_discover_count), SHOW_LONG_STATUS},
  {"Handler_prepare",          (char*) offsetof(STATUS_VAR, ha_prepare_count),  SHOW_LONG_STATUS},
  {"Handler_read_first",       (char*) offsetof(STATUS_VAR, ha_read_first_count), SHOW_LONG_STATUS},
  {"Handler_read_key",         (char*) offsetof(STATUS_VAR, ha_read_key_count), SHOW_LONG_STATUS},
  {"Handler_read_next",        (char*) offsetof(STATUS_VAR, ha_read_next_count), SHOW_LONG_STATUS},
  {"Handler_read_prev",        (char*) offsetof(STATUS_VAR, ha_read_prev_count), SHOW_LONG_STATUS},
  {"Handler_read_rnd",         (char*) offsetof(STATUS_VAR, ha_read_rnd_count), SHOW_LONG_STATUS},
  {"Handler_read_rnd_next",    (char*) offsetof(STATUS_VAR, ha_read_rnd_next_count), SHOW_LONG_STATUS},
  {"Handler_rollback",         (char*) offsetof(STATUS_VAR, ha_rollback_count), SHOW_LONG_STATUS},
  {"Handler_savepoint",        (char*) offsetof(STATUS_VAR, ha_savepoint_count), SHOW_LONG_STATUS},
  {"Handler_savepoint_rollback",(char*) offsetof(STATUS_VAR, ha_savepoint_rollback_count), SHOW_LONG_STATUS},
  {"Handler_update",           (char*) offsetof(STATUS_VAR, ha_update_count), SHOW_LONG_STATUS},
  {"Handler_write",            (char*) offsetof(STATUS_VAR, ha_write_count), SHOW_LONG_STATUS},
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  {"Key_blocks_not_flushed",   (char*) offsetof(KEY_CACHE, global_blocks_changed), SHOW_KEY_CACHE_LONG},
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  {"Key_blocks_unused",        (char*) offsetof(KEY_CACHE, blocks_unused), SHOW_KEY_CACHE_LONG},
  {"Key_blocks_used",          (char*) offsetof(KEY_CACHE, blocks_used), SHOW_KEY_CACHE_LONG},
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  {"Key_read_requests",        (char*) offsetof(KEY_CACHE, global_cache_r_requests), SHOW_KEY_CACHE_LONGLONG},
  {"Key_reads",                (char*) offsetof(KEY_CACHE, global_cache_read), SHOW_KEY_CACHE_LONGLONG},
  {"Key_write_requests",       (char*) offsetof(KEY_CACHE, global_cache_w_requests), SHOW_KEY_CACHE_LONGLONG},
  {"Key_writes",               (char*) offsetof(KEY_CACHE, global_cache_write), SHOW_KEY_CACHE_LONGLONG},
7482
  {"Last_query_cost",          (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS},
7483
  {"Max_used_connections",     (char*) &max_used_connections,  SHOW_LONG},
7484 7485 7486
  {"Not_flushed_delayed_rows", (char*) &delayed_rows_in_use,    SHOW_LONG_NOFLUSH},
  {"Open_files",               (char*) &my_file_opened,         SHOW_LONG_NOFLUSH},
  {"Open_streams",             (char*) &my_stream_opened,       SHOW_LONG_NOFLUSH},
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  {"Open_table_definitions",   (char*) &show_table_definitions, SHOW_FUNC},
  {"Open_tables",              (char*) &show_open_tables,       SHOW_FUNC},
7489
  {"Opened_files",             (char*) &my_file_total_opened, SHOW_LONG_NOFLUSH},
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  {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
7491
  {"Opened_table_definitions", (char*) offsetof(STATUS_VAR, opened_shares), SHOW_LONG_STATUS},
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7492
  {"Prepared_stmt_count",      (char*) &show_prepared_stmt_count, SHOW_FUNC},
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7493
#ifdef HAVE_QUERY_CACHE
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  {"Qcache_free_blocks",       (char*) &query_cache.free_memory_blocks, SHOW_LONG_NOFLUSH},
  {"Qcache_free_memory",       (char*) &query_cache.free_memory, SHOW_LONG_NOFLUSH},
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  {"Qcache_hits",              (char*) &query_cache.hits,       SHOW_LONG},
7497
  {"Qcache_inserts",           (char*) &query_cache.inserts,    SHOW_LONG},
7498
  {"Qcache_lowmem_prunes",     (char*) &query_cache.lowmem_prunes, SHOW_LONG},
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  {"Qcache_not_cached",        (char*) &query_cache.refused,    SHOW_LONG},
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  {"Qcache_queries_in_cache",  (char*) &query_cache.queries_in_cache, SHOW_LONG_NOFLUSH},
  {"Qcache_total_blocks",      (char*) &query_cache.total_blocks, SHOW_LONG_NOFLUSH},
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#endif /*HAVE_QUERY_CACHE*/
7503
  {"Queries",                  (char*) &show_queries,            SHOW_FUNC},
7504
  {"Questions",                (char*) offsetof(STATUS_VAR, questions), SHOW_LONG_STATUS},
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#ifdef HAVE_REPLICATION
  {"Rpl_status",               (char*) &show_rpl_status,          SHOW_FUNC},
#endif
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  {"Select_full_join",         (char*) offsetof(STATUS_VAR, select_full_join_count), SHOW_LONG_STATUS},
  {"Select_full_range_join",   (char*) offsetof(STATUS_VAR, select_full_range_join_count), SHOW_LONG_STATUS},
  {"Select_range",             (char*) offsetof(STATUS_VAR, select_range_count), SHOW_LONG_STATUS},
  {"Select_range_check",       (char*) offsetof(STATUS_VAR, select_range_check_count), SHOW_LONG_STATUS},
  {"Select_scan",	       (char*) offsetof(STATUS_VAR, select_scan_count), SHOW_LONG_STATUS},
7513
  {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
7514 7515
#ifdef HAVE_REPLICATION
  {"Slave_retried_transactions",(char*) &show_slave_retried_trans, SHOW_FUNC},
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  {"Slave_heartbeat_period",   (char*) &show_heartbeat_period, SHOW_FUNC},
  {"Slave_received_heartbeats",(char*) &show_slave_received_heartbeats, SHOW_FUNC},
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  {"Slave_running",            (char*) &show_slave_running,     SHOW_FUNC},
#endif
7520
  {"Slow_launch_threads",      (char*) &slow_launch_threads,    SHOW_LONG},
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  {"Slow_queries",             (char*) offsetof(STATUS_VAR, long_query_count), SHOW_LONG_STATUS},
  {"Sort_merge_passes",	       (char*) offsetof(STATUS_VAR, filesort_merge_passes), SHOW_LONG_STATUS},
  {"Sort_range",	       (char*) offsetof(STATUS_VAR, filesort_range_count), SHOW_LONG_STATUS},
  {"Sort_rows",		       (char*) offsetof(STATUS_VAR, filesort_rows), SHOW_LONG_STATUS},
  {"Sort_scan",		       (char*) offsetof(STATUS_VAR, filesort_scan_count), SHOW_LONG_STATUS},
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#ifdef HAVE_OPENSSL
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  {"Ssl_accept_renegotiates",  (char*) &show_ssl_ctx_sess_accept_renegotiate, SHOW_FUNC},
  {"Ssl_accepts",              (char*) &show_ssl_ctx_sess_accept, SHOW_FUNC},
  {"Ssl_callback_cache_hits",  (char*) &show_ssl_ctx_sess_cb_hits, SHOW_FUNC},
  {"Ssl_cipher",               (char*) &show_ssl_get_cipher, SHOW_FUNC},
  {"Ssl_cipher_list",          (char*) &show_ssl_get_cipher_list, SHOW_FUNC},
  {"Ssl_client_connects",      (char*) &show_ssl_ctx_sess_connect, SHOW_FUNC},
  {"Ssl_connect_renegotiates", (char*) &show_ssl_ctx_sess_connect_renegotiate, SHOW_FUNC},
  {"Ssl_ctx_verify_depth",     (char*) &show_ssl_ctx_get_verify_depth, SHOW_FUNC},
  {"Ssl_ctx_verify_mode",      (char*) &show_ssl_ctx_get_verify_mode, SHOW_FUNC},
  {"Ssl_default_timeout",      (char*) &show_ssl_get_default_timeout, SHOW_FUNC},
  {"Ssl_finished_accepts",     (char*) &show_ssl_ctx_sess_accept_good, SHOW_FUNC},
  {"Ssl_finished_connects",    (char*) &show_ssl_ctx_sess_connect_good, SHOW_FUNC},
  {"Ssl_session_cache_hits",   (char*) &show_ssl_ctx_sess_hits, SHOW_FUNC},
  {"Ssl_session_cache_misses", (char*) &show_ssl_ctx_sess_misses, SHOW_FUNC},
  {"Ssl_session_cache_mode",   (char*) &show_ssl_ctx_get_session_cache_mode, SHOW_FUNC},
  {"Ssl_session_cache_overflows", (char*) &show_ssl_ctx_sess_cache_full, SHOW_FUNC},
  {"Ssl_session_cache_size",   (char*) &show_ssl_ctx_sess_get_cache_size, SHOW_FUNC},
  {"Ssl_session_cache_timeouts", (char*) &show_ssl_ctx_sess_timeouts, SHOW_FUNC},
  {"Ssl_sessions_reused",      (char*) &show_ssl_session_reused, SHOW_FUNC},
  {"Ssl_used_session_cache_entries",(char*) &show_ssl_ctx_sess_number, SHOW_FUNC},
  {"Ssl_verify_depth",         (char*) &show_ssl_get_verify_depth, SHOW_FUNC},
  {"Ssl_verify_mode",          (char*) &show_ssl_get_verify_mode, SHOW_FUNC},
  {"Ssl_version",              (char*) &show_ssl_get_version, SHOW_FUNC},
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#endif /* HAVE_OPENSSL */
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  {"Table_locks_immediate",    (char*) &locks_immediate,        SHOW_LONG},
  {"Table_locks_waited",       (char*) &locks_waited,           SHOW_LONG},
7553
#ifdef HAVE_MMAP
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  {"Tc_log_max_pages_used",    (char*) &tc_log_max_pages_used,  SHOW_LONG},
  {"Tc_log_page_size",         (char*) &tc_log_page_size,       SHOW_LONG},
  {"Tc_log_page_waits",        (char*) &tc_log_page_waits,      SHOW_LONG},
7557
#endif
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  {"Threads_cached",           (char*) &cached_thread_count,    SHOW_LONG_NOFLUSH},
  {"Threads_connected",        (char*) &thread_count,           SHOW_INT},
  {"Threads_created",	       (char*) &thread_created,		SHOW_LONG_NOFLUSH},
  {"Threads_running",          (char*) &thread_running,         SHOW_INT},
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  {"Uptime",                   (char*) &show_starttime,         SHOW_FUNC},
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#ifdef COMMUNITY_SERVER
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  {"Uptime_since_flush_status",(char*) &show_flushstatustime,   SHOW_FUNC},
7565
#endif
7566
  {NullS, NullS, SHOW_LONG}
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};

7569
#ifndef EMBEDDED_LIBRARY
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static void print_version(void)
{
7572
  set_server_version();
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  /*
    Note: the instance manager keys off the string 'Ver' so it can find the
    version from the output of 'mysqld --version', so don't change it!
  */
7577 7578
  printf("%s  Ver %s for %s on %s (%s)\n",my_progname,
	 server_version,SYSTEM_TYPE,MACHINE_TYPE, MYSQL_COMPILATION_COMMENT);
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}

static void usage(void)
{
7583
  if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
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					           MY_CS_PRIMARY,
						   MYF(MY_WME))))
    exit(1);
  if (!default_collation_name)
    default_collation_name= (char*) default_charset_info->name;
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  print_version();
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  puts("\
7591 7592
Copyright (C) 2000-2008 MySQL AB, by Monty and others\n\
Copyright (C) 2008 Sun Microsystems, Inc.\n\
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This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\
7594 7595
and you are welcome to modify and redistribute it under the GPL license\n\n\
Starts the MySQL database server\n");
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7596 7597

  printf("Usage: %s [OPTIONS]\n", my_progname);
7598
  if (!opt_verbose)
7599
    puts("\nFor more help options (several pages), use mysqld --verbose --help");
7600 7601
  else
  {
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#ifdef __WIN__
  puts("NT and Win32 specific options:\n\
7604 7605
  --install                     Install the default service (NT)\n\
  --install-manual              Install the default service started manually (NT)\n\
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  --install service_name        Install an optional service (NT)\n\
  --install-manual service_name Install an optional service started manually (NT)\n\
7608
  --remove                      Remove the default service from the service list (NT)\n\
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  --remove service_name         Remove the service_name from the service list (NT)\n\
  --enable-named-pipe           Only to be used for the	default server (NT)\n\
  --standalone                  Dummy option to start as a standalone server (NT)\
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");
7613
  puts("");
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#endif
7615
  print_defaults(MYSQL_CONFIG_NAME,load_default_groups);
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  puts("");
  set_ports();
7618

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  /* Print out all the options including plugin supplied options */
  my_print_help_inc_plugins(my_long_options, sizeof(my_long_options)/sizeof(my_option));
7621

7622 7623 7624 7625 7626 7627 7628
  if (! plugins_are_initialized)
  {
    puts("\n\
Plugins have parameters that are not reflected in this list\n\
because execution stopped before plugins were initialized.");
  }

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7629
  puts("\n\
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To see what values a running MySQL server is using, type\n\
7631
'mysqladmin variables' instead of 'mysqld --verbose --help'.");
7632
  }
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}
7634
#endif /*!EMBEDDED_LIBRARY*/
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/**
  Initialize all MySQL global variables to default values.
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7639

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  We don't need to set numeric variables refered to in my_long_options
  as these are initialized by my_getopt.
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7642

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7643
  @note
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    The reason to set a lot of global variables to zero is to allow one to
    restart the embedded server with a clean environment
    It's also needed on some exotic platforms where global variables are
    not set to 0 when a program starts.
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7648

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    We don't need to set numeric variables refered to in my_long_options
    as these are initialized by my_getopt.
*/
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7652

7653
static int mysql_init_variables(void)
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{
7655
  int error;
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  /* Things reset to zero */
  opt_skip_slave_start= opt_reckless_slave = 0;
  mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0;
7659
  myisam_test_invalid_symlink= test_if_data_home_dir;
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  opt_log= opt_slow_log= 0;
  opt_update_log= 0;
7662
  log_output_options= find_bit_type(log_output_str, &log_output_typelib);
7663
  opt_bin_log= 0;
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  opt_disable_networking= opt_skip_show_db=0;
7665
  opt_ignore_builtin_innodb= 0;
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  opt_logname= opt_update_logname= opt_binlog_index_name= opt_slow_logname= 0;
  opt_tc_log_file= (char *)"tc.log";      // no hostname in tc_log file name !
7668
  opt_secure_auth= 0;
7669
  opt_secure_file_priv= 0;
7670
  opt_bootstrap= opt_myisam_log= 0;
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  mqh_used= 0;
  segfaulted= kill_in_progress= 0;
  cleanup_done= 0;
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  defaults_argc= 0;
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  defaults_argv= 0;
  server_id_supplied= 0;
  test_flags= select_errors= dropping_tables= ha_open_options=0;
  thread_count= thread_running= kill_cached_threads= wake_thread=0;
  slave_open_temp_tables= 0;
  cached_thread_count= 0;
  opt_endinfo= using_udf_functions= 0;
7682
  opt_using_transactions= 0;
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  abort_loop= select_thread_in_use= signal_thread_in_use= 0;
  ready_to_exit= shutdown_in_progress= grant_option= 0;
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  aborted_threads= aborted_connects= 0;
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  delayed_insert_threads= delayed_insert_writes= delayed_rows_in_use= 0;
  delayed_insert_errors= thread_created= 0;
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  specialflag= 0;
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  binlog_cache_use=  binlog_cache_disk_use= 0;
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  max_used_connections= slow_launch_threads = 0;
  mysqld_user= mysqld_chroot= opt_init_file= opt_bin_logname = 0;
7692
  prepared_stmt_count= 0;
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  errmesg= 0;
7694
  mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS;
7695
  bzero((uchar*) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list));
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  bzero((char *) &global_status_var, sizeof(global_status_var));
  opt_large_pages= 0;
7698
  key_map_full.set_all();
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  /* Character sets */
  system_charset_info= &my_charset_utf8_general_ci;
  files_charset_info= &my_charset_utf8_general_ci;
  national_charset_info= &my_charset_utf8_general_ci;
  table_alias_charset= &my_charset_bin;
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  character_set_filesystem= &my_charset_bin;
7706

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  opt_date_time_formats[0]= opt_date_time_formats[1]= opt_date_time_formats[2]= 0;

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  /* Things with default values that are not zero */
  delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
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  slave_exec_mode_options= 0;
  slave_exec_mode_options= (uint)
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    find_bit_type_or_exit(slave_exec_mode_str, &slave_exec_mode_typelib, NULL,
                          &error);
  if (error)
    return 1;
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  opt_specialflag= SPECIAL_ENGLISH;
  unix_sock= ip_sock= INVALID_SOCKET;
  mysql_home_ptr= mysql_home;
  pidfile_name_ptr= pidfile_name;
  log_error_file_ptr= log_error_file;
  language_ptr= language;
  mysql_data_home= mysql_real_data_home;
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  thd_startup_options= (OPTION_AUTO_IS_NULL | OPTION_BIN_LOG |
                        OPTION_QUOTE_SHOW_CREATE | OPTION_SQL_NOTES);
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  protocol_version= PROTOCOL_VERSION;
  what_to_log= ~ (1L << (uint) COM_TIME);
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  refresh_version= 1L;	/* Increments on each reload */
7729
  global_query_id= thread_id= 1L;
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  strmov(server_version, MYSQL_SERVER_VERSION);
  myisam_recover_options_str= sql_mode_str= "OFF";
7732
  myisam_stats_method_str= "nulls_unequal";
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  my_bind_addr = htonl(INADDR_ANY);
  threads.empty();
  thread_cache.empty();
7736
  key_caches.empty();
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  if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str,
7738
                                                default_key_cache_base.length)))
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  {
    sql_print_error("Cannot allocate the keycache");
    return 1;
  }
7743 7744
  /* set key_cache_hash.default_value = dflt_key_cache */
  multi_keycache_init();
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  /* Set directory paths */
  strmake(language, LANGUAGE, sizeof(language)-1);
7748
  strmake(mysql_real_data_home, get_relative_path(MYSQL_DATADIR),
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	  sizeof(mysql_real_data_home)-1);
  mysql_data_home_buff[0]=FN_CURLIB;	// all paths are relative from here
  mysql_data_home_buff[1]=0;
7752
  mysql_data_home_len= 2;
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  /* Replication parameters */
  master_user= (char*) "test";
  master_password= master_host= 0;
  master_info_file= (char*) "master.info",
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    relay_log_info_file= (char*) "relay-log.info";
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  master_ssl_key= master_ssl_cert= master_ssl_ca=
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    master_ssl_capath= master_ssl_cipher= 0;
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  report_user= report_password = report_host= 0;	/* TO BE DELETED */
  opt_relay_logname= opt_relaylog_index_name= 0;

  /* Variables in libraries */
  charsets_dir= 0;
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  default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME;
7767
  default_collation_name= compiled_default_collation_name;
7768
  sys_charset_system.value= (char*) system_charset_info->csname;
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  character_set_filesystem_name= (char*) "binary";
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  lc_time_names_name= (char*) "en_US";
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  /* Set default values for some option variables */
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  default_storage_engine_str= (char*) "MyISAM";
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  global_system_variables.table_plugin= NULL;
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  global_system_variables.tx_isolation= ISO_REPEATABLE_READ;
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  global_system_variables.select_limit= (ulonglong) HA_POS_ERROR;
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  max_system_variables.select_limit=    (ulonglong) HA_POS_ERROR;
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  global_system_variables.max_join_size= (ulonglong) HA_POS_ERROR;
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  max_system_variables.max_join_size=   (ulonglong) HA_POS_ERROR;
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  global_system_variables.old_passwords= 0;
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  global_system_variables.old_alter_table= 0;
7781
  global_system_variables.binlog_format= BINLOG_FORMAT_UNSPEC;
7782
  /*
7783
    Default behavior for 4.1 and 5.0 is to treat NULL values as unequal
7784 7785 7786
    when collecting index statistics for MyISAM tables.
  */
  global_system_variables.myisam_stats_method= MI_STATS_METHOD_NULLS_NOT_EQUAL;
7787 7788
  
  global_system_variables.optimizer_switch= OPTIMIZER_SWITCH_DEFAULT;
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  /* Variables that depends on compile options */
#ifndef DBUG_OFF
  default_dbug_option=IF_WIN("d:t:i:O,\\mysqld.trace",
			     "d:t:i:o,/tmp/mysqld.trace");
#endif
  opt_error_log= IF_WIN(1,0);
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#ifdef COMMUNITY_SERVER
    have_community_features = SHOW_OPTION_YES;
#else
    have_community_features = SHOW_OPTION_NO;
7799
#endif
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  global_system_variables.ndb_index_stat_enable=FALSE;
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  max_system_variables.ndb_index_stat_enable=TRUE;
  global_system_variables.ndb_index_stat_cache_entries=32;
  max_system_variables.ndb_index_stat_cache_entries=~0L;
  global_system_variables.ndb_index_stat_update_freq=20;
  max_system_variables.ndb_index_stat_update_freq=~0L;
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7806
#ifdef HAVE_OPENSSL
7807
  have_ssl=SHOW_OPTION_YES;
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#else
7809
  have_ssl=SHOW_OPTION_NO;
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#endif
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#ifdef HAVE_BROKEN_REALPATH
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  have_symlink=SHOW_OPTION_NO;
#else
  have_symlink=SHOW_OPTION_YES;
#endif
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#ifdef HAVE_DLOPEN
  have_dlopen=SHOW_OPTION_YES;
#else
  have_dlopen=SHOW_OPTION_NO;
#endif
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#ifdef HAVE_QUERY_CACHE
  have_query_cache=SHOW_OPTION_YES;
#else
  have_query_cache=SHOW_OPTION_NO;
#endif
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#ifdef HAVE_SPATIAL
  have_geometry=SHOW_OPTION_YES;
#else
  have_geometry=SHOW_OPTION_NO;
#endif
#ifdef HAVE_RTREE_KEYS
  have_rtree_keys=SHOW_OPTION_YES;
#else
  have_rtree_keys=SHOW_OPTION_NO;
#endif
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#ifdef HAVE_CRYPT
  have_crypt=SHOW_OPTION_YES;
#else
  have_crypt=SHOW_OPTION_NO;
#endif
#ifdef HAVE_COMPRESS
7842
  have_compress= SHOW_OPTION_YES;
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#else
7844
  have_compress= SHOW_OPTION_NO;
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#endif
#ifdef HAVE_LIBWRAP
  libwrapName= NullS;
#endif
#ifdef HAVE_OPENSSL
  des_key_file = 0;
  ssl_acceptor_fd= 0;
#endif
#ifdef HAVE_SMEM
  shared_memory_base_name= default_shared_memory_base_name;
#endif
#if !defined(my_pthread_setprio) && !defined(HAVE_PTHREAD_SETSCHEDPARAM)
  opt_specialflag |= SPECIAL_NO_PRIOR;
#endif

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#if defined(__WIN__) || defined(__NETWARE__)
  /* Allow Win32 and NetWare users to move MySQL anywhere */
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  {
    char prg_dev[LIBLEN];
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#if defined __WIN__
	char executing_path_name[LIBLEN];
	if (!test_if_hard_path(my_progname))
	{
		// we don't want to use GetModuleFileName inside of my_path since
		// my_path is a generic path dereferencing function and here we care
		// only about the executing binary.
		GetModuleFileName(NULL, executing_path_name, sizeof(executing_path_name));
		my_path(prg_dev, executing_path_name, NULL);
	}
	else
#endif
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    my_path(prg_dev,my_progname,"mysql/bin");
    strcat(prg_dev,"/../");			// Remove 'bin' to get base dir
    cleanup_dirname(mysql_home,prg_dev);
  }
#else
  const char *tmpenv;
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7882
  if (!(tmpenv = getenv("MY_BASEDIR_VERSION")))
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    tmpenv = DEFAULT_MYSQL_HOME;
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7884
  (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1);
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#endif
7886
  return 0;
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}


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my_bool
mysqld_get_one_option(int optid,
                      const struct my_option *opt __attribute__((unused)),
                      char *argument)
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{
7895 7896
  int error;

7897 7898
  switch(optid) {
  case '#':
7899
#ifndef DBUG_OFF
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    DBUG_SET_INITIAL(argument ? argument : default_dbug_option);
7901 7902 7903 7904
#endif
    opt_endinfo=1;				/* unireg: memory allocation */
    break;
  case 'a':
7905
    global_system_variables.sql_mode= fix_sql_mode(MODE_ANSI);
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    global_system_variables.tx_isolation= ISO_SERIALIZABLE;
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    break;
  case 'b':
    strmake(mysql_home,argument,sizeof(mysql_home)-1);
    break;
7911
  case 'C':
7912 7913
    if (default_collation_name == compiled_default_collation_name)
      default_collation_name= 0;
7914
    break;
7915
  case 'l':
7916
    WARN_DEPRECATED(NULL, "7.0", "--log", "'--general_log'/'--general_log_file'");
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    opt_log=1;
    break;
  case 'h':
    strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
7921 7922
    /* Correct pointer set by my_getopt (for embedded library) */
    mysql_data_home= mysql_real_data_home;
7923
    mysql_data_home_len= strlen(mysql_data_home);
7924
    break;
7925
  case 'u':
7926
    if (!mysqld_user || !strcmp(mysqld_user, argument))
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      mysqld_user= argument;
7928
    else
7929
      sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user);
7930
    break;
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  case 'L':
    strmake(language, argument, sizeof(language)-1);
    break;
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#ifdef HAVE_REPLICATION
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  case OPT_SLAVE_SKIP_ERRORS:
    init_slave_skip_errors(argument);
    break;
7938 7939
  case OPT_SLAVE_EXEC_MODE:
    slave_exec_mode_options= (uint)
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      find_bit_type_or_exit(argument, &slave_exec_mode_typelib, "", &error);
    if (error)
      return 1;
7943
    break;
7944
#endif
7945
  case OPT_SAFEMALLOC_MEM_LIMIT:
7946
#if !defined(DBUG_OFF) && defined(SAFEMALLOC)
7947
    sf_malloc_mem_limit = atoi(argument);
7948
#endif
7949
    break;
7950
#include <sslopt-case.h>
7951
#ifndef EMBEDDED_LIBRARY
7952 7953 7954
  case 'V':
    print_version();
    exit(0);
7955
#endif /*EMBEDDED_LIBRARY*/
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  case 'W':
    if (!argument)
      global_system_variables.log_warnings++;
    else if (argument == disabled_my_option)
      global_system_variables.log_warnings= 0L;
    else
      global_system_variables.log_warnings= atoi(argument);
    break;
7964 7965 7966 7967 7968 7969 7970
  case 'T':
    test_flags= argument ? (uint) atoi(argument) : 0;
    opt_endinfo=1;
    break;
  case (int) OPT_BIG_TABLES:
    thd_startup_options|=OPTION_BIG_TABLES;
    break;
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  case (int) OPT_IGNORE_BUILTIN_INNODB:
    opt_ignore_builtin_innodb= 1;
    break;
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  case (int) OPT_ISAM_LOG:
    opt_myisam_log=1;
    break;
  case (int) OPT_UPDATE_LOG:
    opt_update_log=1;
    break;
  case (int) OPT_BIN_LOG:
7981
    opt_bin_log= test(argument != disabled_my_option);
7982
    break;
7983 7984 7985
  case (int) OPT_ERROR_LOG_FILE:
    opt_error_log= 1;
    break;
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7986
#ifdef HAVE_REPLICATION
7987
  case (int) OPT_INIT_RPL_ROLE:
7988 7989
  {
    int role;
7990
    role= find_type_or_exit(argument, &rpl_role_typelib, opt->name);
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    rpl_status = (role == 1) ?  RPL_AUTH_MASTER : RPL_IDLE_SLAVE;
    break;
  }
7994
  case (int)OPT_REPLICATE_IGNORE_DB:
7995
  {
7996
    rpl_filter->add_ignore_db(argument);
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    break;
  }
  case (int)OPT_REPLICATE_DO_DB:
  {
8001
    rpl_filter->add_do_db(argument);
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    break;
  }
  case (int)OPT_REPLICATE_REWRITE_DB:
  {
    char* key = argument,*p, *val;
8007

8008
    if (!(p= strstr(argument, "->")))
8009
    {
8010 8011
      sql_print_error("Bad syntax in replicate-rewrite-db - missing '->'!\n");
      return 1;
8012
    }
8013
    val= p--;
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8014
    while (my_isspace(mysqld_charset, *p) && p > argument)
8015 8016
      *p-- = 0;
    if (p == argument)
8017
    {
8018 8019
      sql_print_error("Bad syntax in replicate-rewrite-db - empty FROM db!\n");
      return 1;
8020
    }
8021 8022
    *val= 0;
    val+= 2;
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8023
    while (*val && my_isspace(mysqld_charset, *val))
8024 8025
      *val++;
    if (!*val)
8026
    {
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      sql_print_error("Bad syntax in replicate-rewrite-db - empty TO db!\n");
      return 1;
8029 8030
    }

8031
    rpl_filter->add_db_rewrite(key, val);
8032 8033 8034
    break;
  }

8035
  case (int)OPT_BINLOG_IGNORE_DB:
8036
  {
8037
    binlog_filter->add_ignore_db(argument);
8038 8039
    break;
  }
8040 8041 8042
  case OPT_BINLOG_FORMAT:
  {
    int id;
8043
    id= find_type_or_exit(argument, &binlog_format_typelib, opt->name);
8044
    global_system_variables.binlog_format= opt_binlog_format_id= id - 1;
8045 8046
    break;
  }
8047
  case (int)OPT_BINLOG_DO_DB:
8048
  {
8049
    binlog_filter->add_do_db(argument);
8050 8051
    break;
  }
8052
  case (int)OPT_REPLICATE_DO_TABLE:
8053
  {
8054
    if (rpl_filter->add_do_table(argument))
8055
    {
8056 8057
      sql_print_error("Could not add do table rule '%s'!\n", argument);
      return 1;
8058
    }
8059 8060
    break;
  }
8061
  case (int)OPT_REPLICATE_WILD_DO_TABLE:
8062
  {
8063
    if (rpl_filter->add_wild_do_table(argument))
8064
    {
8065 8066
      sql_print_error("Could not add do table rule '%s'!\n", argument);
      return 1;
8067
    }
8068 8069
    break;
  }
8070
  case (int)OPT_REPLICATE_WILD_IGNORE_TABLE:
8071
  {
8072
    if (rpl_filter->add_wild_ignore_table(argument))
8073
    {
8074 8075
      sql_print_error("Could not add ignore table rule '%s'!\n", argument);
      return 1;
8076
    }
8077 8078
    break;
  }
8079
  case (int)OPT_REPLICATE_IGNORE_TABLE:
8080
  {
8081
    if (rpl_filter->add_ignore_table(argument))
8082
    {
8083 8084
      sql_print_error("Could not add ignore table rule '%s'!\n", argument);
      return 1;
8085
    }
8086 8087
    break;
  }
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8088
#endif /* HAVE_REPLICATION */
8089
  case (int) OPT_SLOW_QUERY_LOG:
8090
    WARN_DEPRECATED(NULL, "7.0", "--log_slow_queries", "'--slow_query_log'/'--slow_query_log_file'");
8091
    opt_slow_log= 1;
8092
    break;
8093
#ifdef WITH_CSV_STORAGE_ENGINE
8094 8095 8096 8097
  case  OPT_LOG_OUTPUT:
  {
    if (!argument || !argument[0])
    {
8098
      log_output_options= LOG_FILE;
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      log_output_str= log_output_typelib.type_names[1];
    }
    else
    {
      log_output_str= argument;
8104
      log_output_options=
8105 8106 8107
        find_bit_type_or_exit(argument, &log_output_typelib, opt->name, &error);
      if (error)
        return 1;
8108
  }
8109
    break;
8110
  }
8111
#endif
8112
  case OPT_EVENT_SCHEDULER:
8113 8114 8115
#ifndef HAVE_EVENT_SCHEDULER
    sql_perror("Event scheduler is not supported in embedded build.");
#else
8116
    if (Events::set_opt_event_scheduler(argument))
8117
      return 1;
8118
#endif
8119
    break;
8120 8121
  case (int) OPT_SKIP_NEW:
    opt_specialflag|= SPECIAL_NO_NEW_FUNC;
8122
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
8123 8124
    myisam_concurrent_insert=0;
    myisam_recover_options= HA_RECOVER_NONE;
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8125
    sp_automatic_privileges=0;
8126
    my_use_symdir=0;
8127
    ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE);
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8128
#ifdef HAVE_QUERY_CACHE
8129 8130 8131 8132 8133
    query_cache_size=0;
#endif
    break;
  case (int) OPT_SAFE:
    opt_specialflag|= SPECIAL_SAFE_MODE;
8134
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
8135 8136
    myisam_recover_options= HA_RECOVER_DEFAULT;
    ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE);
8137 8138 8139
    break;
  case (int) OPT_SKIP_PRIOR:
    opt_specialflag|= SPECIAL_NO_PRIOR;
8140 8141 8142
    sql_print_warning("The --skip-thread-priority startup option is deprecated "
                      "and will be removed in MySQL 7.0. MySQL 6.0 and up do not "
                      "give threads different priorities.");
8143 8144
    break;
  case (int) OPT_SKIP_LOCK:
8145
    opt_external_locking=0;
8146 8147 8148 8149 8150 8151 8152 8153
    break;
  case (int) OPT_SKIP_HOST_CACHE:
    opt_specialflag|= SPECIAL_NO_HOST_CACHE;
    break;
  case (int) OPT_SKIP_RESOLVE:
    opt_specialflag|=SPECIAL_NO_RESOLVE;
    break;
  case (int) OPT_SKIP_NETWORKING:
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#if defined(__NETWARE__)
    sql_perror("Can't start server: skip-networking option is currently not supported on NetWare");
8156
    return 1;
8157
#endif
8158
    opt_disable_networking=1;
8159
    mysqld_port=0;
8160 8161 8162 8163 8164 8165 8166 8167 8168 8169 8170 8171 8172 8173 8174
    break;
  case (int) OPT_SKIP_SHOW_DB:
    opt_skip_show_db=1;
    opt_specialflag|=SPECIAL_SKIP_SHOW_DB;
    break;
  case (int) OPT_WANT_CORE:
    test_flags |= TEST_CORE_ON_SIGNAL;
    break;
  case (int) OPT_SKIP_STACK_TRACE:
    test_flags|=TEST_NO_STACKTRACE;
    break;
  case (int) OPT_SKIP_SYMLINKS:
    my_use_symdir=0;
    break;
  case (int) OPT_BIND_ADDRESS:
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    if ((my_bind_addr= (ulong) inet_addr(argument)) == INADDR_NONE)
8176 8177
    {
      struct hostent *ent;
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      if (argument[0])
8179
	ent=gethostbyname(argument);
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      else
      {
8182 8183
	char myhostname[255];
	if (gethostname(myhostname,sizeof(myhostname)) < 0)
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	{
8185
	  sql_perror("Can't start server: cannot get my own hostname!");
8186
          return 1;
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8187
	}
8188
	ent=gethostbyname(myhostname);
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8189
      }
8190 8191 8192
      if (!ent)
      {
	sql_perror("Can't start server: cannot resolve hostname!");
8193
        return 1;
8194 8195 8196 8197 8198 8199 8200
      }
      my_bind_addr = (ulong) ((in_addr*)ent->h_addr_list[0])->s_addr;
    }
    break;
  case (int) OPT_PID_FILE:
    strmake(pidfile_name, argument, sizeof(pidfile_name)-1);
    break;
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8201
#ifdef __WIN__
8202 8203
  case (int) OPT_STANDALONE:		/* Dummy option for NT */
    break;
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#endif
8205
  /*
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    The following change issues a deprecation warning if the slave
    configuration is specified either in the my.cnf file or on
    the command-line. See BUG#21490.
  */
  case OPT_MASTER_HOST:
  case OPT_MASTER_USER:
  case OPT_MASTER_PASSWORD:
  case OPT_MASTER_PORT:
  case OPT_MASTER_CONNECT_RETRY:
  case OPT_MASTER_SSL:          
  case OPT_MASTER_SSL_KEY:
  case OPT_MASTER_SSL_CERT:       
  case OPT_MASTER_SSL_CAPATH:
  case OPT_MASTER_SSL_CIPHER:
  case OPT_MASTER_SSL_CA:
    if (!slave_warning_issued)                 //only show the warning once
    {
      slave_warning_issued = true;   
8224
      WARN_DEPRECATED(NULL, "6.0", "for replication startup options", 
8225 8226 8227
        "'CHANGE MASTER'");
    }
    break;
8228 8229 8230 8231
  case OPT_CONSOLE:
    if (opt_console)
      opt_error_log= 0;			// Force logs to stdout
    break;
8232 8233 8234 8235 8236 8237
  case (int) OPT_FLUSH:
    myisam_flush=1;
    flush_time=0;			// No auto flush
    break;
  case OPT_LOW_PRIORITY_UPDATES:
    thr_upgraded_concurrent_insert_lock= TL_WRITE_LOW_PRIORITY;
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    global_system_variables.low_priority_updates=1;
8239 8240 8241 8242 8243 8244 8245
    break;
  case OPT_BOOTSTRAP:
    opt_noacl=opt_bootstrap=1;
    break;
  case OPT_SERVER_ID:
    server_id_supplied = 1;
    break;
8246 8247 8248 8249
  case OPT_DELAY_KEY_WRITE_ALL:
    if (argument != disabled_my_option)
      argument= (char*) "ALL";
    /* Fall through */
8250
  case OPT_DELAY_KEY_WRITE:
8251 8252 8253 8254 8255 8256 8257
    if (argument == disabled_my_option)
      delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
    else if (! argument)
      delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
    else
    {
      int type;
8258
      type= find_type_or_exit(argument, &delay_key_write_typelib, opt->name);
8259 8260
      delay_key_write_options= (uint) type-1;
    }
8261 8262 8263 8264 8265 8266
    break;
  case OPT_CHARSETS_DIR:
    strmake(mysql_charsets_dir, argument, sizeof(mysql_charsets_dir)-1);
    charsets_dir = mysql_charsets_dir;
    break;
  case OPT_TX_ISOLATION:
8267 8268
  {
    int type;
8269
    type= find_type_or_exit(argument, &tx_isolation_typelib, opt->name);
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8270
    global_system_variables.tx_isolation= (type-1);
8271 8272
    break;
  }
8273
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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  case OPT_NDB_MGMD:
  case OPT_NDB_NODEID:
  {
    int len= my_snprintf(opt_ndb_constrbuf+opt_ndb_constrbuf_len,
			 sizeof(opt_ndb_constrbuf)-opt_ndb_constrbuf_len,
			 "%s%s%s",opt_ndb_constrbuf_len > 0 ? ",":"",
			 optid == OPT_NDB_NODEID ? "nodeid=" : "",
			 argument);
    opt_ndb_constrbuf_len+= len;
  }
  /* fall through to add the connectstring to the end
   * and set opt_ndbcluster_connectstring
   */
  case OPT_NDB_CONNECTSTRING:
    if (opt_ndb_connectstring && opt_ndb_connectstring[0])
      my_snprintf(opt_ndb_constrbuf+opt_ndb_constrbuf_len,
		  sizeof(opt_ndb_constrbuf)-opt_ndb_constrbuf_len,
		  "%s%s", opt_ndb_constrbuf_len > 0 ? ",":"",
		  opt_ndb_connectstring);
    else
      opt_ndb_constrbuf[opt_ndb_constrbuf_len]= 0;
    opt_ndbcluster_connectstring= opt_ndb_constrbuf;
    break;
8297 8298
  case OPT_NDB_DISTRIBUTION:
    int id;
8299
    id= find_type_or_exit(argument, &ndb_distribution_typelib, opt->name);
8300 8301
    opt_ndb_distribution_id= (enum ndb_distribution)(id-1);
    break;
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8302 8303 8304 8305 8306 8307 8308 8309
  case OPT_NDB_EXTRA_LOGGING:
    if (!argument)
      ndb_extra_logging++;
    else if (argument == disabled_my_option)
      ndb_extra_logging= 0L;
    else
      ndb_extra_logging= atoi(argument);
    break;
unknown's avatar
Merge  
unknown committed
8310
#endif
8311
  case OPT_MYISAM_RECOVER:
8312
  {
8313
    if (!argument)
8314
    {
8315 8316
      myisam_recover_options=    HA_RECOVER_DEFAULT;
      myisam_recover_options_str= myisam_recover_typelib.type_names[0];
8317
    }
8318 8319 8320 8321 8322
    else if (!argument[0])
    {
      myisam_recover_options= HA_RECOVER_NONE;
      myisam_recover_options_str= "OFF";
    }
8323
    else
8324
    {
8325
      myisam_recover_options_str=argument;
8326
      myisam_recover_options=
8327 8328 8329 8330
        find_bit_type_or_exit(argument, &myisam_recover_typelib, opt->name,
                              &error);
      if (error)
        return 1;
8331
    }
8332 8333 8334
    ha_open_options|=HA_OPEN_ABORT_IF_CRASHED;
    break;
  }
8335 8336 8337 8338 8339 8340 8341
  case OPT_CONCURRENT_INSERT:
    /* The following code is mainly here to emulate old behavior */
    if (!argument)                      /* --concurrent-insert */
      myisam_concurrent_insert= 1;
    else if (argument == disabled_my_option)
      myisam_concurrent_insert= 0;      /* --skip-concurrent-insert */
    break;
unknown's avatar
Merge  
unknown committed
8342
  case OPT_TC_HEURISTIC_RECOVER:
8343 8344 8345 8346
    tc_heuristic_recover= find_type_or_exit(argument,
                                            &tc_heuristic_recover_typelib,
                                            opt->name);
    break;
8347 8348
  case OPT_MYISAM_STATS_METHOD:
  {
8349
    ulong method_conv;
8350
    int method;
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8351 8352
    LINT_INIT(method_conv);

8353
    myisam_stats_method_str= argument;
8354 8355
    method= find_type_or_exit(argument, &myisam_stats_method_typelib,
                              opt->name);
8356
    switch (method-1) {
8357 8358
    case 2:
      method_conv= MI_STATS_METHOD_IGNORE_NULLS;
8359 8360
      break;
    case 1:
8361
      method_conv= MI_STATS_METHOD_NULLS_EQUAL;
8362
      break;
8363 8364
    case 0:
    default:
8365
      method_conv= MI_STATS_METHOD_NULLS_NOT_EQUAL;
8366 8367 8368
      break;
    }
    global_system_variables.myisam_stats_method= method_conv;
unknown's avatar
Merge  
unknown committed
8369 8370
    break;
  }
8371 8372
  case OPT_SQL_MODE:
  {
8373
    sql_mode_str= argument;
8374
    global_system_variables.sql_mode=
8375 8376 8377
      find_bit_type_or_exit(argument, &sql_mode_typelib, opt->name, &error);
    if (error)
      return 1;
8378 8379
    global_system_variables.sql_mode= fix_sql_mode(global_system_variables.
						   sql_mode);
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8380
    break;
8381
  }
8382 8383
  case OPT_OPTIMIZER_SWITCH:
  {
8384 8385 8386
    bool not_used;
    char *error= 0;
    uint error_len= 0;
8387 8388
    optimizer_switch_str= argument;
    global_system_variables.optimizer_switch=
8389 8390 8391 8392 8393 8394 8395 8396
      (ulong)find_set_from_flags(&optimizer_switch_typelib, 
                                 optimizer_switch_typelib.count, 
                                 global_system_variables.optimizer_switch,
                                 global_system_variables.optimizer_switch,
                                 argument, strlen(argument), NULL,
                                 &error, &error_len, &not_used);
     if (error)
     {
8397 8398 8399 8400
       char buf[512];
       char *cbuf= buf;
       cbuf += my_snprintf(buf, 512, "Error in parsing optimizer_switch setting near %*s\n", error_len, error);
       sql_perror(buf);
8401 8402
       return 1;
     }
8403 8404
    break;
  }
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8405
  case OPT_ONE_THREAD:
8406 8407
    global_system_variables.thread_handling=
      SCHEDULER_ONE_THREAD_PER_CONNECTION;
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8408 8409 8410
    break;
  case OPT_THREAD_HANDLING:
  {
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8411
    global_system_variables.thread_handling=
8412
      find_type_or_exit(argument, &thread_handling_typelib, opt->name)-1;
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8413 8414
    break;
  }
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8415
  case OPT_FT_BOOLEAN_SYNTAX:
8416
    if (ft_boolean_check_syntax_string((uchar*) argument))
unknown's avatar
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8417
    {
8418 8419
      sql_print_error("Invalid ft-boolean-syntax string: %s\n", argument);
      return 1;
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8420
    }
8421
    strmake(ft_boolean_syntax, argument, sizeof(ft_boolean_syntax)-1);
8422 8423
    break;
  case OPT_SKIP_SAFEMALLOC:
8424
#ifdef SAFEMALLOC
8425
    sf_malloc_quick=1;
8426
#endif
8427
    break;
unknown's avatar
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8428 8429
  case OPT_LOWER_CASE_TABLE_NAMES:
    lower_case_table_names= argument ? atoi(argument) : 1;
8430
    lower_case_table_names_used= 1;
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8431
    break;
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8432
  }
8433 8434
  return 0;
}
8435

8436

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8437
/** Handle arguments for multiple key caches. */
8438

8439 8440 8441 8442
extern "C" int mysql_getopt_value(uchar **value,
                                  const char *keyname, uint key_length,
                                  const struct my_option *option,
                                  int *error);
8443

8444
static uchar* *
8445
mysql_getopt_value(const char *keyname, uint key_length,
8446
		   const struct my_option *option, int *error)
8447
{
8448 8449
  if (error)
    *error= 0;
8450 8451
  switch (option->id) {
  case OPT_KEY_BUFFER_SIZE:
unknown's avatar
unknown committed
8452
  case OPT_KEY_CACHE_BLOCK_SIZE:
8453 8454
  case OPT_KEY_CACHE_DIVISION_LIMIT:
  case OPT_KEY_CACHE_AGE_THRESHOLD:
8455
  {
unknown's avatar
unknown committed
8456
    KEY_CACHE *key_cache;
8457
    if (!(key_cache= get_or_create_key_cache(keyname, key_length)))
8458 8459 8460 8461 8462
    {
      if (error)
        *error= EXIT_OUT_OF_MEMORY;
      return 0;
    }
8463 8464
    switch (option->id) {
    case OPT_KEY_BUFFER_SIZE:
8465
      return (uchar**) &key_cache->param_buff_size;
8466
    case OPT_KEY_CACHE_BLOCK_SIZE:
8467
      return (uchar**) &key_cache->param_block_size;
8468
    case OPT_KEY_CACHE_DIVISION_LIMIT:
8469
      return (uchar**) &key_cache->param_division_limit;
8470
    case OPT_KEY_CACHE_AGE_THRESHOLD:
8471
      return (uchar**) &key_cache->param_age_threshold;
8472
    }
8473 8474
  }
  }
8475
  return option->value;
8476 8477
}

unknown's avatar
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8478

8479 8480 8481
extern "C" void option_error_reporter(enum loglevel level, const char *format, ...);

void option_error_reporter(enum loglevel level, const char *format, ...)
unknown's avatar
unknown committed
8482
{
8483
  va_list args;
unknown's avatar
unknown committed
8484
  va_start(args, format);
8485 8486 8487 8488 8489 8490 8491

  /* Don't print warnings for --loose options during bootstrap */
  if (level == ERROR_LEVEL || !opt_bootstrap ||
      global_system_variables.log_warnings)
  {
    vprint_msg_to_log(level, format, args);
  }
unknown's avatar
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8492
  va_end(args);
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8493
}
8494

unknown's avatar
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8495

unknown's avatar
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8496 8497 8498 8499
/**
  @todo
  - FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code?
*/
8500
static int get_options(int *argc,char **argv)
8501 8502 8503
{
  int ho_error;

8504
  my_getopt_register_get_addr(mysql_getopt_value);
8505
  strmake(def_ft_boolean_syntax, ft_boolean_syntax,
unknown's avatar
unknown committed
8506
	  sizeof(ft_boolean_syntax)-1);
8507
  my_getopt_error_reporter= option_error_reporter;
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8508 8509 8510 8511 8512

  /* Skip unknown options so that they may be processed later by plugins */
  my_getopt_skip_unknown= TRUE;

  if ((ho_error= handle_options(argc, &argv, my_long_options,
8513
                                mysqld_get_one_option)))
8514
    return ho_error;
unknown's avatar
unknown committed
8515 8516
  (*argc)++; /* add back one for the progname handle_options removes */
             /* no need to do this for argv as we are discarding it. */
8517

8518 8519
  if ((opt_log_slow_admin_statements || opt_log_queries_not_using_indexes ||
       opt_log_slow_slave_statements) &&
8520
      !opt_slow_log)
8521
    sql_print_warning("options --log-slow-admin-statements, --log-queries-not-using-indexes and --log-slow-slave-statements have no effect if --log_slow_queries is not set");
8522

unknown's avatar
unknown committed
8523
#if defined(HAVE_BROKEN_REALPATH)
8524 8525 8526 8527 8528 8529 8530 8531 8532 8533
  my_use_symdir=0;
  my_disable_symlinks=1;
  have_symlink=SHOW_OPTION_NO;
#else
  if (!my_use_symdir)
  {
    my_disable_symlinks=1;
    have_symlink=SHOW_OPTION_DISABLED;
  }
#endif
8534 8535 8536 8537 8538 8539
  if (opt_debugging)
  {
    /* Allow break with SIGINT, no core or stack trace */
    test_flags|= TEST_SIGINT | TEST_NO_STACKTRACE;
    test_flags&= ~TEST_CORE_ON_SIGNAL;
  }
8540 8541
  /* Set global MyISAM variables from delay_key_write_options */
  fix_delay_key_write((THD*) 0, OPT_GLOBAL);
8542 8543
  /* Set global slave_exec_mode from its option */
  fix_slave_exec_mode(OPT_GLOBAL);
8544

8545
#ifndef EMBEDDED_LIBRARY
8546 8547
  if (mysqld_chroot)
    set_root(mysqld_chroot);
8548
#else
unknown's avatar
unknown committed
8549
  global_system_variables.thread_handling = SCHEDULER_NO_THREADS;
8550 8551
  max_allowed_packet= global_system_variables.max_allowed_packet;
  net_buffer_length= global_system_variables.net_buffer_length;
8552
#endif
8553 8554
  if (fix_paths())
    return 1;
unknown's avatar
unknown committed
8555

unknown's avatar
unknown committed
8556 8557 8558 8559
  /*
    Set some global variables from the global_system_variables
    In most cases the global variables will not be used
  */
8560
  my_disable_locking= myisam_single_user= test(opt_external_locking == 0);
unknown's avatar
unknown committed
8561
  my_default_record_cache_size=global_system_variables.read_buff_size;
8562
  myisam_max_temp_length=
8563
    (my_off_t) global_system_variables.myisam_max_sort_file_size;
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8564

unknown's avatar
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8565
  /* Set global variables based on startup options */
unknown's avatar
unknown committed
8566
  myisam_block_size=(uint) 1 << my_bit_log2(opt_myisam_block_size);
unknown's avatar
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8567

8568 8569 8570 8571
  /* long_query_time is in microseconds */
  global_system_variables.long_query_time= max_system_variables.long_query_time=
    (longlong) (long_query_time * 1000000.0);

8572 8573
  if (opt_short_log_format)
    opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;
8574

8575
  if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE,
8576
				  &global_system_variables.date_format) ||
8577
      init_global_datetime_format(MYSQL_TIMESTAMP_TIME,
8578
				  &global_system_variables.time_format) ||
8579
      init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME,
8580
				  &global_system_variables.datetime_format))
8581
    return 1;
8582

unknown's avatar
unknown committed
8583 8584 8585 8586 8587 8588 8589 8590 8591 8592 8593
#ifdef EMBEDDED_LIBRARY
  one_thread_scheduler(&thread_scheduler);
#else
  if (global_system_variables.thread_handling <=
      SCHEDULER_ONE_THREAD_PER_CONNECTION)
    one_thread_per_connection_scheduler(&thread_scheduler);
  else if (global_system_variables.thread_handling == SCHEDULER_NO_THREADS)
    one_thread_scheduler(&thread_scheduler);
  else
    pool_of_threads_scheduler(&thread_scheduler);  /* purecov: tested */
#endif
8594
  return 0;
unknown's avatar
unknown committed
8595 8596 8597
}


8598 8599 8600 8601 8602 8603 8604 8605 8606 8607
/*
  Create version name for running mysqld version
  We automaticly add suffixes -debug, -embedded and -log to the version
  name to make the version more descriptive.
  (MYSQL_SERVER_SUFFIX is set by the compilation environment)
*/

static void set_server_version(void)
{
  char *end= strxmov(server_version, MYSQL_SERVER_VERSION,
8608
                     MYSQL_SERVER_SUFFIX_STR, NullS);
8609 8610 8611 8612
#ifdef EMBEDDED_LIBRARY
  end= strmov(end, "-embedded");
#endif
#ifndef DBUG_OFF
8613
  if (!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug"))
8614 8615 8616 8617 8618 8619 8620
    end= strmov(end, "-debug");
#endif
  if (opt_log || opt_update_log || opt_slow_log || opt_bin_log)
    strmov(end, "-log");                        // This may slow down system
}


unknown's avatar
unknown committed
8621 8622 8623
static char *get_relative_path(const char *path)
{
  if (test_if_hard_path(path) &&
8624
      is_prefix(path,DEFAULT_MYSQL_HOME) &&
unknown's avatar
unknown committed
8625 8626
      strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR))
  {
unknown's avatar
unknown committed
8627
    path+=(uint) strlen(DEFAULT_MYSQL_HOME);
unknown's avatar
unknown committed
8628 8629 8630 8631 8632 8633 8634
    while (*path == FN_LIBCHAR)
      path++;
  }
  return (char*) path;
}


unknown's avatar
unknown committed
8635
/**
8636 8637
  Fix filename and replace extension where 'dir' is relative to
  mysql_real_data_home.
unknown's avatar
unknown committed
8638 8639
  @return
    1 if len(path) > FN_REFLEN
8640 8641 8642
*/

bool
8643
fn_format_relative_to_data_home(char * to, const char *name,
8644 8645 8646 8647 8648 8649 8650 8651 8652 8653
				const char *dir, const char *extension)
{
  char tmp_path[FN_REFLEN];
  if (!test_if_hard_path(dir))
  {
    strxnmov(tmp_path,sizeof(tmp_path)-1, mysql_real_data_home,
	     dir, NullS);
    dir=tmp_path;
  }
  return !fn_format(to, name, dir, extension,
8654
		    MY_APPEND_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH);
8655 8656 8657
}


8658
static int fix_paths(void)
unknown's avatar
unknown committed
8659
{
8660
  char buff[FN_REFLEN],*pos;
8661
  convert_dirname(mysql_home,mysql_home,NullS);
8662
  /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */
8663
  my_realpath(mysql_home,mysql_home,MYF(0));
8664 8665 8666 8667 8668 8669 8670
  /* Ensure that mysql_home ends in FN_LIBCHAR */
  pos=strend(mysql_home);
  if (pos[-1] != FN_LIBCHAR)
  {
    pos[0]= FN_LIBCHAR;
    pos[1]= 0;
  }
8671
  convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS);
8672 8673 8674 8675 8676 8677
  my_realpath(mysql_unpacked_real_data_home, mysql_real_data_home, MYF(0));
  mysql_unpacked_real_data_home_len= strlen(mysql_unpacked_real_data_home);
  if (mysql_unpacked_real_data_home[mysql_unpacked_real_data_home_len-1] == FN_LIBCHAR)
    --mysql_unpacked_real_data_home_len;


8678
  convert_dirname(language,language,NullS);
unknown's avatar
unknown committed
8679 8680 8681
  (void) my_load_path(mysql_home,mysql_home,""); // Resolve current dir
  (void) my_load_path(mysql_real_data_home,mysql_real_data_home,mysql_home);
  (void) my_load_path(pidfile_name,pidfile_name,mysql_real_data_home);
unknown's avatar
unknown committed
8682
  (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr :
8683
                                      get_relative_path(PLUGINDIR), mysql_home);
8684
  opt_plugin_dir_ptr= opt_plugin_dir;
unknown's avatar
unknown committed
8685

unknown's avatar
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8686
  char *sharedir=get_relative_path(SHAREDIR);
unknown's avatar
unknown committed
8687
  if (test_if_hard_path(sharedir))
unknown's avatar
unknown committed
8688
    strmake(buff,sharedir,sizeof(buff)-1);		/* purecov: tested */
unknown's avatar
unknown committed
8689
  else
unknown's avatar
unknown committed
8690
    strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS);
8691
  convert_dirname(buff,buff,NullS);
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8692 8693 8694 8695 8696
  (void) my_load_path(language,language,buff);

  /* If --character-sets-dir isn't given, use shared library dir */
  if (charsets_dir != mysql_charsets_dir)
  {
unknown's avatar
unknown committed
8697 8698
    strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff,
	     CHARSET_DIR, NullS);
unknown's avatar
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8699
  }
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8700
  (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff);
8701
  convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS);
unknown's avatar
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8702
  charsets_dir=mysql_charsets_dir;
unknown's avatar
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8703

unknown's avatar
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8704
  if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir))
8705
    return 1;
unknown's avatar
SCRUM  
unknown committed
8706
#ifdef HAVE_REPLICATION
8707 8708
  if (!slave_load_tmpdir)
  {
unknown's avatar
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8709
    if (!(slave_load_tmpdir = (char*) my_strdup(mysql_tmpdir, MYF(MY_FAE))))
8710
      return 1;
8711
  }
8712
#endif /* HAVE_REPLICATION */
8713 8714 8715 8716 8717 8718 8719 8720 8721 8722
  /*
    Convert the secure-file-priv option to system format, allowing
    a quick strcmp to check if read or write is in an allowed dir
   */
  if (opt_secure_file_priv)
  {
    convert_dirname(buff, opt_secure_file_priv, NullS);
    my_free(opt_secure_file_priv, MYF(0));
    opt_secure_file_priv= my_strdup(buff, MYF(MY_FAE));
  }
8723
  return 0;
unknown's avatar
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8724 8725 8726
}


8727
static ulong find_bit_type_or_exit(const char *x, TYPELIB *bit_lib,
8728
                                   const char *option, int *error)
8729
{
8730
  ulong result;
8731 8732
  const char **ptr;
  
8733 8734
  *error= 0;
  if ((result= find_bit_type(x, bit_lib)) == ~(ulong) 0)
8735
  {
8736 8737
    char *buff= (char *) my_alloca(2048);
    char *cbuf;
8738
    ptr= bit_lib->type_names;
8739 8740 8741 8742 8743
    cbuf= buff + ((!*x) ?
      my_snprintf(buff, 2048, "No option given to %s\n", option) :
      my_snprintf(buff, 2048, "Wrong option to %s. Option(s) given: %s\n",
                  option, x));
    cbuf+= my_snprintf(cbuf, 2048 - (cbuf-buff), "Alternatives are: '%s'", *ptr);
8744
    while (*++ptr)
8745 8746 8747 8748 8749 8750
      cbuf+= my_snprintf(cbuf, 2048 - (cbuf-buff), ",'%s'", *ptr);
    my_snprintf(cbuf, 2048 - (cbuf-buff), "\n");
    sql_perror(buff);
    *error= 1;
    my_afree(buff);
    return 0;
8751
  }
8752 8753

  return result;
8754 8755 8756
}


unknown's avatar
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8757 8758 8759 8760 8761
/**
  @return
    a bitfield from a string of substrings separated by ','
    or
    ~(ulong) 0 on error.
8762
*/
8763 8764 8765 8766 8767 8768 8769 8770 8771 8772 8773 8774 8775

static ulong find_bit_type(const char *x, TYPELIB *bit_lib)
{
  bool found_end;
  int  found_count;
  const char *end,*i,*j;
  const char **array, *pos;
  ulong found,found_int,bit;
  DBUG_ENTER("find_bit_type");
  DBUG_PRINT("enter",("x: '%s'",x));

  found=0;
  found_end= 0;
8776
  pos=(char *) x;
8777 8778 8779
  while (*pos == ' ') pos++;
  found_end= *pos == 0;
  while (!found_end)
8780 8781 8782 8783
  {
    if (!*(end=strcend(pos,',')))		/* Let end point at fieldend */
    {
      while (end > pos && end[-1] == ' ')
unknown's avatar
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8784
	end--;					/* Skip end-space */
8785 8786 8787 8788 8789 8790 8791 8792
      found_end=1;
    }
    found_int=0; found_count=0;
    for (array=bit_lib->type_names, bit=1 ; (i= *array++) ; bit<<=1)
    {
      j=pos;
      while (j != end)
      {
unknown's avatar
unknown committed
8793 8794
	if (my_toupper(mysqld_charset,*i++) !=
            my_toupper(mysqld_charset,*j++))
8795
	  goto skip;
8796 8797 8798 8799 8800 8801 8802 8803 8804 8805 8806
      }
      found_int=bit;
      if (! *i)
      {
	found_count=1;
	break;
      }
      else if (j != pos)			// Half field found
      {
	found_count++;				// Could be one of two values
      }
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    }
    if (found_count != 1)
      DBUG_RETURN(~(ulong) 0);				// No unique value
    found|=found_int;
    pos=end+1;
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  }
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  DBUG_PRINT("exit",("bit-field: %ld",(ulong) found));
  DBUG_RETURN(found);
} /* find_bit_type */


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/**
  Check if file system used for databases is case insensitive.
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  @param dir_name			Directory to test
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  @retval
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    -1  Don't know (Test failed)
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  @retval
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    0   File system is case sensitive
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  @retval
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    1   File system is case insensitive
*/

static int test_if_case_insensitive(const char *dir_name)
{
  int result= 0;
  File file;
  char buff[FN_REFLEN], buff2[FN_REFLEN];
  MY_STAT stat_info;
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  DBUG_ENTER("test_if_case_insensitive");
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  fn_format(buff, glob_hostname, dir_name, ".lower-test",
	    MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR);
  fn_format(buff2, glob_hostname, dir_name, ".LOWER-TEST",
	    MY_UNPACK_FILENAME | MY_REPLACE_EXT | MY_REPLACE_DIR);
  (void) my_delete(buff2, MYF(0));
  if ((file= my_create(buff, 0666, O_RDWR, MYF(0))) < 0)
  {
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    sql_print_warning("Can't create test file %s", buff);
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    DBUG_RETURN(-1);
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  }
  my_close(file, MYF(0));
  if (my_stat(buff2, &stat_info, MYF(0)))
    result= 1;					// Can access file
  (void) my_delete(buff, MYF(MY_WME));
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  DBUG_PRINT("exit", ("result: %d", result));
  DBUG_RETURN(result);
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}


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#ifndef EMBEDDED_LIBRARY

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/**
  Create file to store pid number.
*/
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static void create_pid_file()
{
  File file;
  if ((file = my_create(pidfile_name,0664,
			O_WRONLY | O_TRUNC, MYF(MY_WME))) >= 0)
  {
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    char buff[21], *end;
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    end= int10_to_str((long) getpid(), buff, 10);
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    *end++= '\n';
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    if (!my_write(file, (uchar*) buff, (uint) (end-buff), MYF(MY_WME | MY_NABP)))
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    {
      (void) my_close(file, MYF(0));
      return;
    }
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    (void) my_close(file, MYF(0));
  }
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  sql_perror("Can't start server: can't create PID file");
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  exit(1);
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}
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#endif /* EMBEDDED_LIBRARY */
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/** Clear most status variables. */
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void refresh_status(THD *thd)
{
  pthread_mutex_lock(&LOCK_status);

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  /* Add thread's status variabes to global status */
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  add_to_status(&global_status_var, &thd->status_var);
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  /* Reset thread's status variables */
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  bzero((uchar*) &thd->status_var, sizeof(thd->status_var));
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  /* Reset some global variables */
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  reset_status_vars();
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  /* Reset the counters of all key caches (default and named). */
  process_key_caches(reset_key_cache_counters);
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#ifdef COMMUNITY_SERVER
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  flush_status_time= time((time_t*) 0);
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#endif
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  pthread_mutex_unlock(&LOCK_status);

  /*
    Set max_used_connections to the number of currently open
    connections.  Lock LOCK_thread_count out of LOCK_status to avoid
    deadlocks.  Status reset becomes not atomic, but status data is
    not exact anyway.
  */
  pthread_mutex_lock(&LOCK_thread_count);
  max_used_connections= thread_count-delayed_insert_threads;
  pthread_mutex_unlock(&LOCK_thread_count);
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}


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/*****************************************************************************
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  Instantiate variables for missing storage engines
  This section should go away soon
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*****************************************************************************/

#ifndef WITH_NDBCLUSTER_STORAGE_ENGINE
ulong ndb_cache_check_time;
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ulong ndb_extra_logging;
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#endif

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/*****************************************************************************
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  Instantiate templates
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*****************************************************************************/

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#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
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/* Used templates */
template class I_List<THD>;
template class I_List_iterator<THD>;
template class I_List<i_string>;
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template class I_List<i_string_pair>;
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template class I_List<NAMED_LIST>;
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template class I_List<Statement>;
template class I_List_iterator<Statement>;
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#endif