mysqld.cc 289 KB
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/* Copyright (C) 2000-2003 MySQL AB
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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 "slave.h"
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#include "sql_repl.h"
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#include "repl_failsafe.h"
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#include "stacktrace.h"
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#include "mysqld_suffix.h"
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#include "mysys_err.h"
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#ifdef HAVE_BERKELEY_DB
#include "ha_berkeley.h"
#endif
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#ifdef HAVE_INNOBASE_DB
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#include "ha_innodb.h"
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#endif
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#include "ha_myisam.h"
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#ifdef HAVE_NDBCLUSTER_DB
#include "ha_ndbcluster.h"
#endif
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#ifdef HAVE_SYS_PRCTL_H
#include <sys/prctl.h>
#endif
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#ifdef HAVE_INNOBASE_DB
#define OPT_INNODB_DEFAULT 1
#else
#define OPT_INNODB_DEFAULT 0
#endif
#define OPT_BDB_DEFAULT 0
#ifdef HAVE_NDBCLUSTER_DB
#define OPT_NDBCLUSTER_DEFAULT 0
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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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#else
#define OPT_NDBCLUSTER_DEFAULT 0
#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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#ifndef DBUG_OFF
#define ONE_THREAD
#endif

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#ifdef HAVE_purify
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#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(OS2)
#  include <sys/un.h>
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#elif !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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#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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  /* We can't handle floating point exceptions with threads, so disable
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     this on freebsd
  */

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inline void set_proper_floating_point_mode()
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{
  /* Don't fall for overflow, underflow,divide-by-zero or loss of precision */
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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
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}
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#elif defined(__sgi)
/* for IRIX to use set_fpc_csr() */
#include <sys/fpu.h>

inline void set_proper_floating_point_mode()
{
  /* Enable denormalized DOUBLE values support for IRIX */
  {
    union fpc_csr n;
    n.fc_word = get_fpc_csr();
    n.fc_struct.flush = 0;
    set_fpc_csr(n.fc_word);
  }
}
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#else
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#define set_proper_floating_point_mode()
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#endif /* __FreeBSD__ && HAVE_IEEEFP_H */

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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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/* Constants */
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const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"};
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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",
  "TRADITIONAL", "NO_AUTO_CREATE_USER", "HIGH_NOT_PRECEDENCE",
  "NO_ENGINE_SUBSTITUTION",
  NullS
};
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,
  /*NO_ENGINE_SUBSTITUTION*/      22
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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 };
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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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}};

/* static variables */

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char opt_plugin_dir[FN_REFLEN];
char *opt_plugin_dir_ptr;

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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;
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static my_bool opt_bdb, opt_isam, opt_ndbcluster, opt_merge, opt_federated;
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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;
static ulong my_bind_addr;			/* the address we bind to */
static volatile ulong cached_thread_count= 0;
static const char *sql_mode_str= "OFF";
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;
static char *default_collation_name;
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static char compiled_default_collation_name[]= MYSQL_DEFAULT_COLLATION_NAME;
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static char mysql_data_home_buff[2];
static I_List<THD> thread_cache;

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#ifndef EMBEDDED_LIBRARY
static 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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static pthread_cond_t COND_thread_cache, COND_flush_thread_cache;
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#ifdef HAVE_BERKELEY_DB
static my_bool opt_sync_bdb_logs;
#endif
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/* Global variables */
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bool opt_update_log, opt_bin_log;
my_bool opt_log, opt_slow_log, 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, using_update_log;
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bool volatile abort_loop;
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bool volatile shutdown_in_progress;
/**
   @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
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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my_bool	opt_innodb;
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bool slave_warning_issued = false; 

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#ifdef HAVE_NDBCLUSTER_DB
const char *opt_ndbcluster_connectstring= 0;
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const char *opt_ndb_connectstring= 0;
char opt_ndb_constrbuf[1024];
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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#endif
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my_bool opt_readonly, use_temp_pool, relay_log_purge;
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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 lower_case_file_system= 0;
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my_bool opt_large_pages= 0;
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;
my_bool sp_automatic_privileges= 1;
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#ifdef HAVE_INITGROUPS
static bool calling_initgroups= FALSE; /* Used in SIGSEGV handler. */
#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;
uint volatile thread_count, thread_running;
ulonglong thd_startup_options;
ulong back_log, connect_timeout, concurrency, server_id;
ulong table_cache_size, thread_stack, 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 thread_cache_size=0, binlog_cache_size=0, max_binlog_cache_size=0;
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ulong query_cache_size=0;
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ulong refresh_version, flush_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;
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;
uint  max_user_connections= 0;
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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;
/*
  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, sync_binlog_period;
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ulong expire_logs_days = 0;
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ulong rpl_recovery_rank=0;

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time_t server_start_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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     mysql_unpacked_real_data_home[FN_REFLEN],
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     def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
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int mysql_unpacked_real_data_home_len;
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char *mysql_data_home= mysql_real_data_home;
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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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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 */
const char *in_left_expr_name= "<left expr>";
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/* name of additional condition */
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<i_string_pair> replicate_rewrite_db;
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I_List<i_string> replicate_do_db, replicate_ignore_db;
// allow the user to tell us which db to replicate and which to ignore
I_List<i_string> binlog_do_db, binlog_ignore_db;
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I_List<THD> threads;
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I_List<NAMED_LIST> key_caches;
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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_isam;
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SHOW_COMP_OPTION have_raid, have_ssl, have_symlink, have_query_cache;
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SHOW_COMP_OPTION have_geometry, have_rtree_keys, have_dlopen;
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SHOW_COMP_OPTION have_crypt, have_compress;

/* 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;
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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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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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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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/* Static variables */

static bool kill_in_progress, segfaulted;
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static my_bool opt_do_pstack, opt_bootstrap, opt_myisam_log;
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static int cleanup_done;
static ulong opt_specialflag, opt_myisam_block_size;
static char *opt_logname, *opt_update_logname, *opt_binlog_index_name;
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static char *opt_slow_logname, *opt_tc_heuristic_recover;
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static char *mysql_home_ptr, *pidfile_name_ptr;
static char **defaults_argv;
static char *opt_bin_logname;

static my_socket unix_sock,ip_sock;
struct rand_struct sql_rand; // used by sql_class.cc:THD::THD()

/* 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"
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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#ifdef OS2
pthread_cond_t eventShutdown;
#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

#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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#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
char *des_key_file;
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struct st_VioSSLFd *ssl_acceptor_fd;
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#endif /* HAVE_OPENSSL */


/* Function declarations */

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pthread_handler_t signal_hand(void *arg);
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static void mysql_init_variables(void);
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static void get_options(int argc,char **argv);
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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);
static void 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 void clean_up(bool print_message);
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static int test_if_case_insensitive(const char *dir_name);

#ifndef EMBEDDED_LIBRARY
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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#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 flush thread */
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  (void) pthread_mutex_lock(&LOCK_manager);
  if (manager_thread_in_use)
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  {
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    DBUG_PRINT("quit",("killing manager thread: 0x%lx",manager_thread));
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   (void) pthread_cond_signal(&COND_manager);
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  }
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  (void) pthread_mutex_unlock(&LOCK_manager);
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  /* kill connection thread */
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#if !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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  DBUG_PRINT("quit",("waiting for select thread: 0x%lx",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 on this first loop through. */
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    if (tmp->slave_thread)
      continue;
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    tmp->killed= THD::KILL_CONNECTION;
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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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  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);

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

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static void close_server_sock()
896
{
897
#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"));
905
    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 causes MySQL
      to hang on AIX 4.3 during shutdown
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    */
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    DBUG_PRINT("info",("calling closesocket on TCP/IP socket"));
912
    VOID(closesocket(tmp_sock));
913
#endif
914
  }
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  tmp_sock=unix_sock;
  if (tmp_sock != INVALID_SOCKET)
917
  {
918
    unix_sock=INVALID_SOCKET;
919
    DBUG_PRINT("info",("calling shutdown on unix socket"));
920
    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"));
927
    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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}
934

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#endif /*EMBEDDED_LIBRARY*/

937

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

942
#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
945
#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(OS2)
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  pthread_cond_signal(&eventShutdown);		// post semaphore
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#elif defined(HAVE_PTHREAD_KILL)
965
  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)
970
  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
975
  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");
982
  }
983
#endif
984
  DBUG_VOID_RETURN;
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}

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/*
  Force server down. Kill all connections and threads and exit

  SYNOPSIS
  kill_server

  sig_ptr       Signal number that caused kill_server to be called.

  NOTE!
    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(OS2) || defined(__NETWARE__)
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extern "C" void kill_server(int sig_ptr)
1004
#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");
1014
#ifndef EMBEDDED_LIBRARY
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  int sig=(int) (long) sig_ptr;			// This is passed a int
1016
  // 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
1021
  if (sig != 0) // 0 is not a valid signal number
1022
    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))
  {
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	  DBUG_PRINT("error",
		("Got error: %ld from SetEvent of smem_event_connect_request",
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foo1  
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		 GetLastError()));
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  }
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#endif

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#if defined(__NETWARE__) || (defined(USE_ONE_SIGNAL_HAND) && !defined(__WIN__) && !defined(OS2))
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  my_thread_init();				// If this is a new thread
#endif
  close_connections();
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  if (sig != MYSQL_KILL_SIGNAL &&
      sig != 0)
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    unireg_abort(1);				/* purecov: inspected */
  else
1048
    unireg_end();
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#ifdef __NETWARE__
1051
  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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#if defined(__NETWARE__) || (defined(USE_ONE_SIGNAL_HAND) && !defined(__WIN__) && !defined(OS2))
  my_thread_end();
#endif

1059
  pthread_exit(0);				/* purecov: deadcode */
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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))
1067
pthread_handler_t kill_server_thread(void *arg __attribute__((unused)))
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{
  my_thread_init();				// Initialize new thread
  kill_server(0);
  my_thread_end();				// Normally never reached
  return 0;
}
#endif

1076
extern "C" sig_handler print_signal_warning(int sig)
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{
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  if (global_system_variables.log_warnings)
    sql_print_warning("Got signal %d from thread %ld",
                      sig, my_thread_id());
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#ifdef DONT_REMEMBER_SIGNAL
1082
  my_sigset(sig,print_signal_warning);		/* int. thread system calls */
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#endif
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#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
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  if (sig == SIGALRM)
    alarm(2);					/* reschedule alarm */
#endif
}

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/*
  cleanup all memory and end program nicely
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  SYNOPSIS
    unireg_end()

  NOTES
    This function never returns.
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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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#ifndef EMBEDDED_LIBRARY
1105
void unireg_end(void)
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{
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  clean_up(1);
1108
  my_thread_end();
1109
#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
1113
#endif
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}

1116
extern "C" void unireg_abort(int exit_code)
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{
1118
  DBUG_ENTER("unireg_abort");
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  if (exit_code)
    sql_print_error("Aborting\n");
1121
  clean_up(exit_code || !opt_bootstrap); /* purecov: inspected */
1122
  DBUG_PRINT("quit",("done with cleanup in unireg_abort"));
1123
  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
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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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  mysql_log.cleanup();
  mysql_slow_log.cleanup();
  mysql_bin_log.cleanup();

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#ifdef HAVE_REPLICATION
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  if (use_slave_mask)
    bitmap_free(&slave_error_mask);
1144
#endif
1145
  my_tz_free();
1146
  my_dbopt_free();
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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  acl_free(1);
  grant_free();
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#endif
1151
  query_cache_destroy();
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  table_cache_free();
  hostname_cache_free();
  item_user_lock_free();
  lex_free();				/* Free some memory */
1156
  set_var_free();
1157
  free_charsets();
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#ifdef HAVE_DLOPEN
  if (!opt_noacl)
    udf_free();
#endif
1162
  (void) ha_panic(HA_PANIC_CLOSE);	/* close all tables and logs */
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  if (tc_log)
    tc_log->close();
  xid_cache_free();
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  delete_elements(&key_caches, (void (*)(const char*, gptr)) free_key_cache);
  multi_keycache_free();
1168
  end_thr_alarm(1);			/* Free allocated memory */
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#ifdef USE_RAID
  end_raid();
#endif
1172
  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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  free_tmpdir(&mysql_tmpdir_list);
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#ifdef HAVE_REPLICATION
1185
  my_free(slave_load_tmpdir,MYF(MY_ALLOW_ZERO_PTR));
1186
#endif
1187
  x_free(opt_bin_logname);
1188
  x_free(opt_relay_logname);
1189
  x_free(opt_secure_file_priv);
1190
  bitmap_free(&temp_pool);
1191
  free_max_user_conn();
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#ifdef HAVE_REPLICATION
1193
  end_slave_list();
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  free_list(&replicate_do_db);
  free_list(&replicate_ignore_db);
  free_list(&binlog_do_db);
  free_list(&binlog_ignore_db);
  free_list(&replicate_rewrite_db);
1199
#endif
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#ifdef HAVE_OPENSSL
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  if (ssl_acceptor_fd)
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  {
    SSL_CTX_free(ssl_acceptor_fd->ssl_context);
    my_free((gptr) ssl_acceptor_fd, MYF(0));
  }
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#endif /* HAVE_OPENSSL */
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  vio_end();

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#ifdef USE_REGEX
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  my_regex_end();
1211
#endif
1212

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  if (print_message && errmesg)
1214
    sql_print_information(ER(ER_SHUTDOWN_COMPLETE),my_progname);
1215
#if !defined(EMBEDDED_LIBRARY)
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  if (!opt_bootstrap)
    (void) my_delete(pidfile_name,MYF(0));	// This may not always exist
1218
#endif
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  finish_client_errs();
  my_free((gptr) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST),
          MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR));
1222
  DBUG_PRINT("quit", ("Error messages freed"));
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  /* Tell main we are ready */
  (void) pthread_mutex_lock(&LOCK_thread_count);
1225
  DBUG_PRINT("quit", ("got thread count lock"));
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  ready_to_exit=1;
1227
  /* 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
  */
1234
  DBUG_PRINT("quit", ("done with cleanup"));
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} /* clean_up */


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#ifndef EMBEDDED_LIBRARY

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/*
  This is mainly needed when running with purify, but it's still nice to
  know that all child threads have died when mysqld exits
*/

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++)
  {
1255
    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);
  (void) pthread_mutex_destroy(&LOCK_Acl);
1267
  (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);
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#ifdef HAVE_OPENSSL
  (void) pthread_mutex_destroy(&LOCK_des_key_file);
1283
#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);
1287
#endif
1288
#endif
1289
#ifdef HAVE_REPLICATION
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1290
  (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) pthread_mutex_destroy(&LOCK_global_read_lock);
1298
  (void) pthread_mutex_destroy(&LOCK_uuid_generator);
1299
  (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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1302
  (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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1308 1309 1310
#endif /*EMBEDDED_LIBRARY*/


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

static void set_ports()
{
  char	*env;
1318
  if (!mysqld_port && !opt_disable_networking)
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1319 1320
  {					// Get port if not from commandline
    struct  servent *serv_ptr;
1321
    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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    if ((serv_ptr= getservbyname("mysql", "tcp")))
      mysqld_port= ntohs((u_short) serv_ptr->s_port); /* purecov: inspected */
1336
#endif
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    if ((env = getenv("MYSQL_TCP_PORT")))
1338
      mysqld_port= (uint) atoi(env);		/* purecov: inspected */
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  }
1340
  if (!mysqld_unix_port)
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  {
#ifdef __WIN__
1343
    mysqld_unix_port= (char*) MYSQL_NAMEDPIPE;
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#else
1345
    mysqld_unix_port= (char*) MYSQL_UNIX_ADDR;
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#endif
    if ((env = getenv("MYSQL_UNIX_PORT")))
1348
      mysqld_unix_port= env;			/* purecov: inspected */
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  }
}

1352
#ifndef EMBEDDED_LIBRARY
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/* Change to run as another user if started with --user */

1355
static struct passwd *check_user(const char *user)
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{
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#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
1358
  struct passwd *tmp_user_info;
1359
  uid_t user_id= geteuid();
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1360

1361
  // Don't bother if we aren't superuser
1362
  if (user_id)
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  {
    if (user)
1365
    {
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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) &&
1370
	  global_system_variables.log_warnings)
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        sql_print_warning(
                    "One can only use the --user switch if running as root\n");
1373
      /* purecov: end */    
1374
    }
1375
    return NULL;
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1376
  }
1377
  if (!user)
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  {
    if (!opt_bootstrap)
    {
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1381
      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);
    }
1384
    return NULL;
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  }
1386
  /* purecov: begin tested */
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1387
  if (!strcmp(user,"root"))
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    return NULL;                        // Avoid problem with dynamic libraries
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1390
  if (!(tmp_user_info= getpwnam(user)))
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1391
  {
1392
    // Allow a numeric uid to be used
1393
    const char *pos;
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    for (pos= user; my_isdigit(mysqld_charset,*pos); pos++) ;
    if (*pos)                                   // Not numeric id
1396
      goto err;
1397
    if (!(tmp_user_info= getpwuid(atoi(user))))
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      goto err;
    else
1400
      return tmp_user_info;
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1401
  }
1402
  else
1403 1404
    return tmp_user_info;
  /* purecov: end */    
1405 1406

err:
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1407
  sql_print_error("Fatal error: Can't change to run as user '%s' ;  Please check that the user exists!\n",user);
1408
  unireg_abort(1);
1409 1410 1411 1412 1413 1414 1415 1416 1417

#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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1418 1419
#endif
  return NULL;
1420 1421
}

1422
static void set_user(const char *user, struct passwd *user_info_arg)
1423
{
1424
  /* purecov: begin tested */
1425
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
1426
  DBUG_ASSERT(user_info_arg != 0);
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1427
#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;
1435
  initgroups((char*) user, user_info_arg->pw_gid);
1436
  calling_initgroups= FALSE;
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1437
#endif
1438
  if (setgid(user_info_arg->pw_gid) == -1)
1439 1440 1441
  {
    sql_perror("setgid");
    unireg_abort(1);
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1442
  }
1443
  if (setuid(user_info_arg->pw_uid) == -1)
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  {
    sql_perror("setuid");
    unireg_abort(1);
  }
#endif
1449
  /* purecov: end */    
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}

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1452

1453
static void set_effective_user(struct passwd *user_info_arg)
1454 1455
{
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
1456 1457
  DBUG_ASSERT(user_info_arg != 0);
  if (setregid((gid_t)-1, user_info_arg->pw_gid) == -1)
1458
  {
1459
    sql_perror("setregid");
1460
    unireg_abort(1);
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1461
  }
1462
  if (setreuid((uid_t)-1, user_info_arg->pw_uid) == -1)
1463
  {
1464
    sql_perror("setreuid");
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    unireg_abort(1);
  }
#endif
}


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/* Change root user if started with  --chroot */

static void set_root(const char *path)
{
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1475
#if !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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  if (chroot(path) == -1)
  {
    sql_perror("chroot");
    unireg_abort(1);
  }
1481
  my_setwd("/", MYF(0));
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#endif
}

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1485
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;
1492 1493 1494 1495
  int   ret;
  uint  waited;
  uint  this_wait;
  uint  retry;
1496
  DBUG_ENTER("network_init");
1497
  LINT_INIT(ret);
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1498 1499 1500

  set_ports();

1501
  if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap)
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1502
  {
1503
    DBUG_PRINT("general",("IP Socket is %d",mysqld_port));
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1504 1505 1506 1507 1508 1509 1510 1511 1512 1513
    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;
1514
    IPaddr.sin_port = (unsigned short) htons((unsigned short) mysqld_port);
1515 1516 1517 1518 1519 1520

#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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1521
    (void) setsockopt(ip_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,sizeof(arg));
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1522
#endif /* __WIN__ */
1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534
    /*
      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) ||
1535
          (socket_errno != SOCKET_EADDRINUSE) ||
1536 1537 1538 1539 1540 1541 1542
          (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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1543 1544
    {
      DBUG_PRINT("error",("Got error: %d from bind",socket_errno));
1545
      sql_perror("Can't start server: Bind on TCP/IP port");
1546
      sql_print_error("Do you already have another mysqld server running on port: %d ?",mysqld_port);
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      unireg_abort(1);
    }
1549
    if (listen(ip_sock,(int) back_log) < 0)
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1550
    {
1551
      sql_perror("Can't start server: listen() on TCP/IP port");
1552
      sql_print_error("listen() on TCP/IP failed with error %d",
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1553
		      socket_errno);
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1554 1555
      unireg_abort(1);
    }
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1556
  }
1557

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1558 1559
#ifdef __NT__
  /* create named pipe */
1560
  if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap &&
1561
      opt_enable_named_pipe)
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1562
  {
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foo1  
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1563

1564 1565
    pipe_name[sizeof(pipe_name)-1]= 0;		/* Safety if too long string */
    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));
1569
    if (!InitializeSecurityDescriptor(&sdPipeDescriptor,
1570
				      SECURITY_DESCRIPTOR_REVISION))
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1571 1572 1573 1574 1575 1576 1577 1578 1579
    {
      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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1580
    saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES);
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    saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor;
    saPipeSecurity.bInheritHandle = FALSE;
1583 1584 1585 1586 1587 1588 1589 1590 1591 1592
    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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1593 1594 1595 1596 1597 1598 1599
      {
	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 );
1600
	sql_perror((char *)lpMsgBuf);
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1601
	LocalFree(lpMsgBuf);
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1602 1603 1604 1605 1606
	unireg_abort(1);
      }
  }
#endif

1607
#if defined(HAVE_SYS_UN_H)
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1608 1609 1610
  /*
  ** Create the UNIX socket
  */
1611
  if (mysqld_unix_port[0] && !opt_bootstrap)
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1612
  {
1613
    DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port));
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1614

1615 1616
    if (strlen(mysqld_unix_port) > (sizeof(UNIXaddr.sun_path) - 1))
    {
1617
      sql_print_error("The socket file path is too long (> %u): %s",
1618
                      (uint) sizeof(UNIXaddr.sun_path) - 1, mysqld_unix_port);
1619 1620
      unireg_abort(1);
    }
1621
    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;
1628 1629
    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 */
1637
      sql_print_error("Do you already have another mysqld server running on socket: %s ?",mysqld_unix_port);
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1638 1639 1640 1641
      unireg_abort(1);					/* purecov: tested */
    }
    umask(((~my_umask) & 0666));
#if defined(S_IFSOCK) && defined(SECURE_SOCKETS)
1642
    (void) chmod(mysqld_unix_port,S_IFSOCK);	/* Fix solaris 2.6 bug */
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1643
#endif
1644
    if (listen(unix_sock,(int) back_log) < 0)
1645
      sql_print_warning("listen() on Unix socket failed with error %d",
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1646
		      socket_errno);
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1647 1648 1649 1650 1651 1652
  }
#endif
  DBUG_PRINT("info",("server started"));
  DBUG_VOID_RETURN;
}

1653
#endif /*!EMBEDDED_LIBRARY*/
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1654

1655

1656
#ifndef EMBEDDED_LIBRARY
1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669
/*
  Close a connection

  SYNOPSIS
    close_connection()
    thd		Thread handle
    errcode	Error code to print to console
    lock	1 if we have have to lock LOCK_thread_count

  NOTES
    For the connection that is doing shutdown, this is called twice
*/

1670
void close_connection(THD *thd, uint errcode, bool lock)
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1671
{
1672
  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;
}
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#endif /* EMBEDDED_LIBRARY */

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	/* Called when a thread is aborted */
	/* ARGSUSED */

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extern "C" sig_handler end_thread_signal(int sig __attribute__((unused)))
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{
  THD *thd=current_thd;
  DBUG_ENTER("end_thread_signal");
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  if (thd && ! thd->bootstrap)
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  {
    statistic_increment(killed_threads, &LOCK_status);
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    end_thread(thd,0);
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  }
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  DBUG_VOID_RETURN;				/* purecov: deadcode */
}


void end_thread(THD *thd, bool put_in_cache)
{
  DBUG_ENTER("end_thread");
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  thd->cleanup();
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  (void) pthread_mutex_lock(&LOCK_thread_count);
  thread_count--;
  delete thd;
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  if (put_in_cache && cached_thread_count < thread_cache_size &&
      ! 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)
    {
      wake_thread--;
      thd=thread_cache.get();
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      thd->real_id=pthread_self();
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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;
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      thd->thr_create_time= time(NULL);
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      threads.append(thd);
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      pthread_mutex_unlock(&LOCK_thread_count);
      DBUG_VOID_RETURN;
    }
  }

  /* Tell main we are ready */
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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  /* It's safe to broadcast outside a lock (COND... is not deleted here) */
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  DBUG_PRINT("signal", ("Broadcasting COND_thread_count"));
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  (void) pthread_cond_broadcast(&COND_thread_count);
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#ifdef ONE_THREAD
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  if (!(test_flags & TEST_NO_THREADS))	// For debugging under Linux
#endif
  {
    my_thread_end();
    pthread_exit(0);
  }
  DBUG_VOID_RETURN;
}


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);
}


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/*
  Aborts a thread nicely. Commes here on SIGPIPE
  TODO: One should have to fix that thr_alarm know about this
  thread too.
*/
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#ifdef THREAD_SPECIFIC_SIGPIPE
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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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  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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******************************************************************************/

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#if defined(__WIN__)


/*
  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");
  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.
     */
     if(hEventShutdown)
       kill_mysql();
     else
       sql_print_warning("CTRL-C ignored during startup");
     DBUG_RETURN(TRUE);
  }
  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
  {
    set_exception_pointers(ex_pointers);
    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);
  else
  {
    /* Avoid MessageBox()es*/
   _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);

   /*
     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)
   */
   SetErrorMode(SetErrorMode(0)|SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX);
  }
  SetUnhandledExceptionFilter(my_unhandler_exception_filter);
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}

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

// down server event callback
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
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
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 */
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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));
}


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

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static void registerwithneb()
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{

  ConsumerRegistrationInfo reg_info;
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  /* 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
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  reg_info.CRIConsumerFlags= 0;             // SMP_ENABLED_BIT;
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  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
  */
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  getvolumeID((BYTE*) datavolname);
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}


/*
  Callback for NSS Volume Deactivation event
*/
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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;
}


/*
  Function to get NSS volume ID of the MySQL data
*/

#define ADMIN_VOL_PATH					"_ADMIN:/Volumes/"

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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);
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  if ((status= zOpen(rootKey, zNSS_TASK, zNSPACE_LONG|zMODE_UTF8,
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                     (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 ;
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  if ((status= zGetInfo(fileKey, getInfoMask, sizeof(info),
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                        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

  NOTE
    Already done by mysqld_safe
*/
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static void check_data_home(const char *path)
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{
}

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#elif defined(__EMX__)
static void sig_reload(int signo)
{
2213
 // Flush everything
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  bool not_used;
  reload_acl_and_cache((THD*) 0,REFRESH_LOG, (TABLE_LIST*) 0, &not_used);
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  signal(signo, SIG_ACK);
}

static void sig_kill(int signo)
{
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  if (!kill_in_progress)
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  {
    abort_loop=1;				// mark abort for threads
    kill_server((void*) signo);
  }
  signal(signo, SIG_ACK);
}

static void init_signals(void)
{
  signal(SIGQUIT, sig_kill);
  signal(SIGKILL, sig_kill);
  signal(SIGTERM, sig_kill);
  signal(SIGINT,  sig_kill);
  signal(SIGHUP,  sig_reload);	// Flush everything
  signal(SIGALRM, SIG_IGN);
  signal(SIGBREAK,SIG_IGN);
  signal_thread = pthread_self();
}
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static void start_signal_handler(void)
2243
{}
2244

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static void check_data_home(const char *path)
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{}
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#endif /*__WIN__ || __NETWARE || __EMX__*/
2248

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#ifdef HAVE_LINUXTHREADS
#define UNSAFE_DEFAULT_LINUX_THREADS 200
2252
#endif
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extern "C" sig_handler handle_segfault(int sig)
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{
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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
  */
2266
  if (segfaulted)
2267
  {
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    fprintf(stderr, "Fatal " SIGNAL_FMT " while backtracing\n", sig);
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    exit(1);
  }
2271

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  segfaulted = 1;
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  curr_time= time(NULL);
  localtime_r(&curr_time, &tm);

2277
  fprintf(stderr,"\
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%02d%02d%02d %2d:%02d:%02d - mysqld got " SIGNAL_FMT " ;\n\
2279
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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foo1  
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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);
  fprintf(stderr, "max_connections=%lu\n", max_connections);
  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_connections = %lu K\n\
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bytes of memory\n", ((ulong) dflt_key_cache->key_cache_mem_size +
2298
		     (global_system_variables.read_buff_size +
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		      global_system_variables.sortbuff_size) *
2300
		     max_connections)/ 1024);
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  fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n");
2302

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#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 */
2314

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#ifdef HAVE_STACKTRACE
2316
  if (!(test_flags & TEST_NO_STACKTRACE))
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  {
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    fprintf(stderr,"thd=%p\n",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\
terribly wrong...\n");
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    print_stacktrace(thd ? (gptr) thd->thread_stack : (gptr) 0,
		     thread_stack);
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  }
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  if (thd)
  {
    fprintf(stderr, "Trying to get some variables.\n\
Some pointers may be invalid and cause the dump to abort...\n");
    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, "\
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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");
2336
  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
  
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  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");
  }

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#ifdef HAVE_WRITE_CORE
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  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    fprintf(stderr, "Writing a core file\n");
    fflush(stderr);
    write_core(sig);
  }
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#endif

#ifndef __WIN__
  /* On Windows, do not terminate, but pass control to exception filter */
2382
  exit(1);
2383
#endif
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}

2386
#if !defined(__WIN__) && !defined(__NETWARE__) && !defined(__EMX__)
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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;
2399
  struct sigaction sa;
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  DBUG_ENTER("init_signals");

2402
  my_sigset(THR_SERVER_ALARM,print_signal_warning); // Should never be called!
2403

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  if (!(test_flags & TEST_NO_STACKTRACE) || (test_flags & TEST_CORE_ON_SIGNAL))
2405
  {
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    sa.sa_flags = SA_RESETHAND | SA_NODEFER;
    sigemptyset(&sa.sa_mask);
    sigprocmask(SIG_SETMASK,&sa.sa_mask,NULL);

2410
    init_stacktrace();
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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);
2417
    sigaction(SIGABRT, &sa, NULL);
2418
#ifdef SIGBUS
2419
    sigaction(SIGBUS, &sa, NULL);
2420
#endif
2421
    sigaction(SIGILL, &sa, NULL);
2422
    sigaction(SIGFPE, &sa, NULL);
2423
  }
2424 2425 2426 2427 2428

#ifdef HAVE_GETRLIMIT
  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    /* Change limits so that we will get a core file */
2429
    STRUCT_RLIMIT rl;
2430
    rl.rlim_cur = rl.rlim_max = RLIM_INFINITY;
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    if (setrlimit(RLIMIT_CORE, &rl) && global_system_variables.log_warnings)
2432
      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);
2436
  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) */
2445
  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);
2457
  if (test_flags & TEST_SIGINT)
2458
  {
2459
    my_sigset(thr_kill_signal, end_thread_signal);
2460
    // May be SIGINT
2461
    sigdelset(&set, thr_kill_signal);
2462
  }
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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)
  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
  pthread_attr_setstacksize(&thr_attr,thread_stack*2);
#else
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  pthread_attr_setstacksize(&thr_attr,thread_stack);
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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;
}


2509
/* This threads handles all signals and alarms */
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/* ARGSUSED */
2512
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
2522 2523
    This should actually be '+ max_number_of_slaves' instead of +10,
    but the +10 should be quite safe.
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  */
2525 2526
  init_thr_alarm(max_connections +
		 global_system_variables.max_insert_delayed_threads + 10);
2527
  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
2537
#ifndef IGNORE_SIGHUP_SIGQUIT
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  (void) sigaddset(&set,SIGQUIT);
  (void) sigaddset(&set,SIGHUP);
2540 2541
#endif
  (void) sigaddset(&set,SIGTERM);
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  (void) sigaddset(&set,SIGTSTP);

  /* Save pid to this process (or thread on Linux) */
2545
  if (!opt_bootstrap)
2546 2547
    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);
2565
  (void) pthread_cond_broadcast(&COND_thread_count);
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2567
  (void) pthread_sigmask(SIG_BLOCK,&set,NULL);
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  for (;;)
  {
    int error;					// Used when debugging
    if (shutdown_in_progress && !abort_loop)
    {
2573
      sig= SIGTERM;
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      error=0;
    }
    else
      while ((error=my_sigwait(&set,&sig)) == EINTR) ;
    if (cleanup_done)
2579
    {
2580
      DBUG_PRINT("quit",("signal_handler: calling my_thread_end()"));
2581
      my_thread_end();
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      signal_thread_in_use= 0;
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      pthread_exit(0);				// Safety
2584
    }
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    switch (sig) {
    case SIGTERM:
    case SIGQUIT:
    case SIGKILL:
#ifdef EXTRA_DEBUG
2590
      sql_print_information("Got signal %d to shutdown mysqld",sig);
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#endif
      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))
2602
	  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;
	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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      }
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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
2627
      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)
2636
{}
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2638
#endif /*!EMBEDDED_LIBRARY*/
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#endif	/* __WIN__*/


/*
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  All global error messages are sent here where the first one is stored
  for the client
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*/


/* ARGSUSED */
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static int my_message_sql(uint error, const char *str, myf MyFlags)
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{
2651
  THD *thd;
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  DBUG_ENTER("my_message_sql");
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  DBUG_PRINT("error", ("error: %u  message: '%s'", error, str));
  /*
    Put here following assertion when situation with EE_* error codes
    will be fixed
    DBUG_ASSERT(error != 0);
  */
2659
  if ((thd= current_thd))
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  {
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    /*
      TODO: There are two exceptions mechanism (THD and sp_rcontext),
      this could be improved by having a common stack of handlers.
    */
    if (thd->handle_error(error,
                          MYSQL_ERROR::WARN_LEVEL_ERROR))
      DBUG_RETURN(0);

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    if (thd->spcont &&
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        thd->spcont->handle_error(error, MYSQL_ERROR::WARN_LEVEL_ERROR, thd))
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    {
      DBUG_RETURN(0);
    }

    thd->query_error=  1; // needed to catch query errors during replication

    if (!thd->no_warnings_for_error)
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    {
      thd->no_warnings_for_error= TRUE;
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      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, error, str);
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      thd->no_warnings_for_error= FALSE;
    }

2684
    /*
2685
      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
    {
      NET *net= &thd->net;
      net->report_error= 1;
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      query_cache_abort(net);
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      if (!net->last_error[0])			// Return only first message
      {
	strmake(net->last_error, str, sizeof(net->last_error)-1);
	net->last_errno= error ? error : ER_UNKNOWN_ERROR;
      }
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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);
}

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#ifndef EMBEDDED_LIBRARY
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static void *my_str_malloc_mysqld(size_t size)
{
  return my_malloc(size, MYF(MY_FAE));
}


static void my_str_free_mysqld(void *ptr)
{
  my_free((gptr)ptr, MYF(MY_FAE));
}
2725
#endif /* EMBEDDED_LIBRARY */
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#ifdef __WIN__
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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);
2736
#if !defined(EMBEDDED_LIBRARY)
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  if (WaitForSingleObject(hEventShutdown,INFINITE)==WAIT_OBJECT_0)
2738
#endif /* EMBEDDED_LIBRARY */
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     kill_server(MYSQL_KILL_SIGNAL);
  return 0;
}
#endif

2744

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#ifdef OS2
2746
pthread_handler_t handle_shutdown(void *arg)
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{
  my_thread_init();

  // wait semaphore
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  pthread_cond_wait(&eventShutdown, NULL);
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  // close semaphore and kill server
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  pthread_cond_destroy(&eventShutdown);
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  /*
    Exit main loop on main thread, so kill will be done from
    main thread (this is thread 2)
  */
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  abort_loop = 1;

  // unblock select()
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  so_cancel(ip_sock);
  so_cancel(unix_sock);
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  return 0;
}
#endif

2770

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

#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

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

  RETURN
    0 ok
    1 error
*/

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static bool init_global_datetime_format(timestamp_type format_type,
                                        DATE_TIME_FORMAT **var_ptr)
2802
{
2803 2804
  /* Get command line option */
  const char *str= opt_date_time_formats[format_type];
2805

2806
  if (!str)					// No specified format
2807
  {
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    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;
2815
  }
2816
  if (!(*var_ptr= date_time_format_make(format_type, str, strlen(str))))
2817
  {
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    fprintf(stderr, "Wrong date/time format specifier: %s\n", str);
    return 1;
2820
  }
2821
  return 0;
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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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  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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SCRUM  
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  max_system_variables.pseudo_thread_id= (ulong)~0;
2833
  server_start_time= time((time_t*) 0);
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  if (init_thread_environment())
    return 1;
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  mysql_init_variables();
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#ifdef OS2
  {
    // fix timezone for daylight saving
    struct tm *ts = localtime(&start_time);
    if (ts->tm_isdst > 0)
      _timezone -= 3600;
  }
#endif
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#ifdef HAVE_TZNAME
  {
    struct tm tm_tmp;
2849
    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
2855
  /*
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foo1  
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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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  /*
    Init mutexes for the global MYSQL_LOG objects.
    As safe_mutex depends on what MY_INIT() does, we can't init the mutexes of
    global MYSQL_LOGs in their constructors, because then they would be inited
    before MY_INIT(). So we do it here.
  */
  mysql_log.init_pthread_objects();
  mysql_slow_log.init_pthread_objects();
  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
    strmake(pidfile_name, glob_hostname, sizeof(pidfile_name)-5);
2882
  strmov(fn_ext(pidfile_name),".pid");		// Add proper extension
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  load_defaults(conf_file_name, groups, &argc, &argv);
  defaults_argv=argv;
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  get_options(argc,argv);
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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;
#ifdef HAVE_INNOBASE_DB
      innobase_use_large_pages= 1;
      innobase_large_page_size= opt_large_page_size;
#endif
  }
#endif /* HAVE_LARGE_PAGES */

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  /* connections and databases needs lots of files */
  {
2907
    uint files, wanted_files, max_open_files;
2908

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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);
2924 2925

    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),
                                      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)
2948
	  sql_print_warning("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
2949 2950
			files, max_connections, table_cache_size);
      }
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2951
      else if (global_system_variables.log_warnings)
2952
	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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2955 2956
  }
  unireg_init(opt_specialflag); /* Set up extern variabels */
2957 2958
  if (init_errmessage())	/* Read error messages from file */
    return 1;
2959
  init_client_errs();
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  lex_init();
  item_init();
  set_var_init();
  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;
  }

2994 2995
  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;
3016
  global_system_variables.character_set_results= default_charset_info;
3017
  global_system_variables.character_set_client= default_charset_info;
3018

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3019
  if (!(character_set_filesystem=
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        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;

3025 3026 3027
  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);
3029 3030 3031 3032
    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);
3036 3037
  else
    sys_init_connect.value=my_strdup("",MYF(0));
3038
  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);
3043 3044
  else
    sys_init_slave.value=my_strdup("",MYF(0));
3045
  sys_init_slave.is_os_charset= TRUE;
3046

3047
  if (use_temp_pool && bitmap_init(&temp_pool,0,1024,1))
3048
    return 1;
3049 3050 3051
  if (my_dbopt_init())
    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));
3058 3059
  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);
  }
3094 3095 3096 3097 3098 3099

  /* 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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3103 3104

static int init_thread_environment()
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{
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  (void) pthread_mutex_init(&LOCK_mysql_create_db,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_Acl,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_open,MY_MUTEX_INIT_FAST);
  (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);
3121
  (void) pthread_mutex_init(&LOCK_active_mi, MY_MUTEX_INIT_FAST);
3122
  (void) pthread_mutex_init(&LOCK_global_system_variables, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_global_read_lock, MY_MUTEX_INIT_FAST);
3124
  (void) pthread_mutex_init(&LOCK_prepared_stmt_count, MY_MUTEX_INIT_FAST);
3125
  (void) pthread_mutex_init(&LOCK_uuid_generator, MY_MUTEX_INIT_FAST);
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#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)
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    (void) my_rwlock_init(&openssl_stdlocks[i].lock, NULL);
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  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
3139
#endif
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  (void) my_rwlock_init(&LOCK_sys_init_connect, NULL);
  (void) my_rwlock_init(&LOCK_sys_init_slave, NULL);
3142
  (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);
3148
  (void) pthread_cond_init(&COND_manager,NULL);
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#ifdef HAVE_REPLICATION
3150
  (void) pthread_mutex_init(&LOCK_rpl_status, MY_MUTEX_INIT_FAST);
3151
  (void) pthread_cond_init(&COND_rpl_status, NULL);
3152
#endif
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  sp_cache_init();
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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;
}

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3172
#if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL)
3173
static unsigned long openssl_id_function()
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foo1  
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{
3175
  return (unsigned long) pthread_self();
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}
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static openssl_lock_t *openssl_dynlock_create(const char *file, int line)
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{
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  openssl_lock_t *lock= new openssl_lock_t;
  my_rwlock_init(&lock->lock, NULL);
  return lock;
}


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static void openssl_dynlock_destroy(openssl_lock_t *lock, const char *file,
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				    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);
}


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static void openssl_lock(int mode, openssl_lock_t *lock, const char *file,
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			 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();
  }
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  if (err)
3233
  {
3234
    sql_print_error("Fatal: can't %s OpenSSL lock", what);
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    abort();
  }
}
#endif /* HAVE_OPENSSL */


3241 3242
#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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    /* 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,
					  opt_ssl_cipher);
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    DBUG_PRINT("info",("ssl_acceptor_fd: 0x%lx", (long) ssl_acceptor_fd));
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    if (!ssl_acceptor_fd)
3254
    {
3255
      sql_print_warning("Failed to setup SSL");
3256
      opt_use_ssl = 0;
3257
      have_ssl= SHOW_OPTION_DISABLED;
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    }
  }
  else
  {
3262
    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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3269
#endif /* EMBEDDED_LIBRARY */
3270

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3271 3272
static int init_server_components()
{
3273
  DBUG_ENTER("init_server_components");
3274 3275
  if (table_cache_init() || hostname_cache_init())
    unireg_abort(1);
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3276

3277
  query_cache_result_size_limit(query_cache_limit);
3278
  query_cache_set_min_res_unit(query_cache_min_res_unit);
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3279
  query_cache_init();
3280
  query_cache_resize(query_cache_size);
3281
  randominit(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2);
3282
  set_proper_floating_point_mode();
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3283
  init_thr_lock();
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#ifdef HAVE_REPLICATION
3285
  init_slave_list();
3286
#endif
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  /* Setup log files */
  if (opt_log)
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    mysql_log.open_query_log(opt_logname);
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3290
  if (opt_update_log)
3291
  {
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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
      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).
      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
      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).
      As sql-bin-update-same, log-update and log-bin cannot be changed by the
      user after starting the server (they are not variables), the user will
      not later interfere with the settings we do here.
    */
    if (opt_bin_log)
3318
    {
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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)
      {
        /* as opt_bin_log==0, no need to free opt_bin_logname */
        if (!(opt_bin_logname= my_strdup(opt_update_logname, MYF(MY_WME))))
          exit(EXIT_OUT_OF_MEMORY);
        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.");
3340
    }
3341
  }
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3342
  if (opt_log_slave_updates && !opt_bin_log)
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3343
  {
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    sql_print_warning("You need to use --log-bin to make "
                      "--log-slave-updates work.");
      unireg_abort(1);
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3347
  }
3348

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  if (opt_slow_log)
    mysql_slow_log.open_slow_log(opt_slow_logname);

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3352
#ifdef HAVE_REPLICATION
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  if (opt_log_slave_updates && replicate_same_server_id)
  {
    sql_print_error("\
3356
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.");
    unireg_abort(1);
  }
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#endif
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  if (opt_error_log)
3364
  {
3365
    if (!log_error_file_ptr[0])
3366
      fn_format(log_error_file, pidfile_name, mysql_data_home, ".err",
3367
                MY_REPLACE_EXT); /* replace '.<domain>' by '.err', bug#4997 */
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    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
3373 3374
    else
    {
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3375
#ifndef EMBEDDED_LIBRARY
3376
      if (freopen(log_error_file, "a+", stdout))
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3377
#endif
3378
	stderror_file= freopen(log_error_file, "a+", stderr);
3379
    }
3380
  }
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3381

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  if (opt_bin_log)
3383
  {
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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)
3388 3389
    {
      /*
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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.
3395
      */
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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);
3401
    }
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3402
    if (ln == buf)
3403
    {
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      my_free(opt_bin_logname, MYF(MY_ALLOW_ZERO_PTR));
      opt_bin_logname=my_strdup(buf, MYF(0));
3406
    }
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    if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln))
    {
      unireg_abort(1);
    }

    /*
      Used to specify which type of lock we need to use for queries of type
      INSERT ... SELECT. This will change when we have row level logging.
    */
    using_update_log=1;
3417 3418
  }

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  if (xid_cache_init())
  {
    sql_print_error("Out of memory");
    unireg_abort(1);
  }
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  if (ha_init())
  {
    sql_print_error("Can't init databases");
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3427
    unireg_abort(1);
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  }
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  /*
    Check that the default storage engine is actually available.
  */
  if (!ha_storage_engine_is_enabled((enum db_type)
                                    global_system_variables.table_type))
  {
    if (!opt_bootstrap)
    {
      sql_print_error("Default storage engine (%s) is not available",
                      ha_get_storage_engine((enum db_type)
                                            global_system_variables.table_type));
      unireg_abort(1);
    }
    global_system_variables.table_type= DB_TYPE_MYISAM;
  }

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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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3450

3451
  if (tc_log->open(opt_bin_log ? opt_bin_logname : opt_tc_log_file))
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  {
    sql_print_error("Can't init tc log");
    unireg_abort(1);
  }

  if (ha_recover(0))
3458
  {
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3459
    unireg_abort(1);
3460
  }
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  if (opt_bin_log && mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0,
                                        WRITE_CACHE, 0, max_binlog_size, 0))
    unireg_abort(1);

#ifdef HAVE_REPLICATION
  if (opt_bin_log && expire_logs_days)
  {
3469
    time_t purge_time= time(0) - expire_logs_days*24*60*60;
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    if (purge_time >= 0)
      mysql_bin_log.purge_logs_before_date(purge_time);
  }
#endif

  if (opt_myisam_log)
    (void) mi_log(1);
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3478 3479
  /* call ha_init_key_cache() on all key caches to init them */
  process_key_caches(&ha_init_key_cache);
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3480

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#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY)
3482
  if (locked_in_memory && !getuid())
3483
  {
3484
    if (setreuid((uid_t)-1, 0) == -1)
3485
    {                        // this should never happen
3486
      sql_perror("setreuid");
3487 3488
      unireg_abort(1);
    }
3489 3490
    if (mlockall(MCL_CURRENT))
    {
3491
      if (global_system_variables.log_warnings)
3492
	sql_print_warning("Failed to lock memory. Errno: %d\n",errno);
3493
      locked_in_memory= 0;
3494
    }
3495 3496
    if (user_info)
      set_user(mysqld_user, user_info);
3497
  }
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3498
  else
3499
#endif
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    locked_in_memory=0;
3501

3502
  ft_init_stopwords();
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  init_max_user_conn();
3505
  init_update_queries();
3506
  DBUG_RETURN(0);
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3507
}
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3508

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3510
#ifndef EMBEDDED_LIBRARY
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3511 3512 3513 3514
static void create_maintenance_thread()
{
  if (
#ifdef HAVE_BERKELEY_DB
3515
      (have_berkeley_db == SHOW_OPTION_YES) ||
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3516 3517
#endif
      (flush_time && flush_time != ~(ulong) 0L))
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  {
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3519 3520
    pthread_t hThread;
    if (pthread_create(&hThread,&connection_attrib,handle_manager,0))
3521
      sql_print_warning("Can't create thread to manage maintenance");
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3522
  }
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}

3525

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3526 3527 3528
static void create_shutdown_thread()
{
#ifdef __WIN__
3529 3530 3531
  hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
3532
    sql_print_warning("Can't create thread to handle shutdown requests");
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3533

3534 3535
  // On "Stop Service" we have to do regular shutdown
  Service.SetShutdownEvent(hEventShutdown);
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3536
#endif
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3537
#ifdef OS2
3538 3539 3540
  pthread_cond_init(&eventShutdown, NULL);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
3541
    sql_print_warning("Can't create thread to handle shutdown requests");
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3542
#endif
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}
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3544

3545
#endif /* EMBEDDED_LIBRARY */
3546 3547 3548

#if defined(__NT__) || defined(HAVE_SMEM)
static void handle_connections_methods()
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3549
{
3550 3551 3552
  pthread_t hThread;
  DBUG_ENTER("handle_connections_methods");
#ifdef __NT__
3553
  if (hPipe == INVALID_HANDLE_VALUE &&
3554 3555
      (!have_tcpip || opt_disable_networking) &&
      !opt_enable_shared_memory)
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3556
  {
3557
    sql_print_error("TCP/IP, --shared-memory, or --named-pipe should be configured on NT OS");
3558
    unireg_abort(1);				// Will not return
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3559
  }
3560 3561 3562 3563 3564 3565 3566
#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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3567
  {
3568 3569 3570
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_namedpipes, 0))
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3571
    {
3572
      sql_print_warning("Can't create thread to handle named pipes");
3573 3574 3575 3576 3577 3578 3579 3580 3581 3582
      handler_count--;
    }
  }
#endif /* __NT__ */
  if (have_tcpip && !opt_disable_networking)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_sockets, 0))
    {
3583
      sql_print_warning("Can't create thread to handle TCP/IP");
3584 3585 3586 3587 3588 3589 3590 3591 3592 3593
      handler_count--;
    }
  }
#ifdef HAVE_SMEM
  if (opt_enable_shared_memory)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_shared_memory, 0))
    {
3594
      sql_print_warning("Can't create thread to handle shared memory");
3595
      handler_count--;
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    }
  }
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#endif
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3599

3600 3601 3602 3603 3604
  while (handler_count > 0)
    pthread_cond_wait(&COND_handler_count,&LOCK_thread_count);
  pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_VOID_RETURN;
}
3605 3606 3607 3608 3609 3610

void decrement_handler_count()
{
  pthread_mutex_lock(&LOCK_thread_count);
  handler_count--;
  pthread_cond_signal(&COND_handler_count);
3611 3612
  pthread_mutex_unlock(&LOCK_thread_count);  
  my_thread_end();
3613 3614 3615
}
#else
#define decrement_handler_count()
3616 3617 3618
#endif /* defined(__NT__) || defined(HAVE_SMEM) */


Sergey Glukhov's avatar
Sergey Glukhov committed
3619
#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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3658 3659 3660 3661 3662 3663
#ifdef __WIN__
int win_main(int argc, char **argv)
#else
int main(int argc, char **argv)
#endif
{
3664
  MY_INIT(argv[0]);		// init my_sys library & pthreads
3665 3666
  /* ^^^  Nothing should be before this line! */

3667 3668 3669 3670
  /* Set signal used to kill MySQL */
#if defined(SIGUSR2)
  thr_kill_signal= thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2;
#else
3671
  thr_kill_signal= SIGINT;
3672 3673
#endif
  
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3674
#ifdef _CUSTOMSTARTUPCONFIG_
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3675 3676 3677
  if (_cust_check_startup())
  {
    / * _cust_check_startup will report startup failure error * /
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3678
    exit(1);
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3679 3680
  }
#endif
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3681

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

3698 3699 3700
  if (init_common_variables(MYSQL_CONFIG_NAME,
			    argc, argv, load_default_groups))
    unireg_abort(1);				// Will do exit
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3701 3702 3703 3704

  init_signals();
  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_setprio(pthread_self(),CONNECT_PRIOR);
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3705 3706 3707 3708 3709 3710 3711
#if defined(__ia64__) || defined(__ia64)
  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
  pthread_attr_setstacksize(&connection_attrib,thread_stack*2);
#else
3712
  pthread_attr_setstacksize(&connection_attrib,thread_stack);
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3713
#endif
3714 3715 3716 3717 3718
#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);
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3719 3720 3721
#if defined(__ia64__) || defined(__ia64)
    stack_size/= 2;
#endif
3722 3723 3724 3725
    /* We must check if stack_size = 0 as Solaris 2.9 can return 0 here */
    if (stack_size && stack_size < thread_stack)
    {
      if (global_system_variables.log_warnings)
3726 3727
	sql_print_warning("Asked for %lu thread stack, but got %ld",
			  thread_stack, (long) stack_size);
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3728 3729 3730
#if defined(__ia64__) || defined(__ia64)
      thread_stack= stack_size*2;
#else
3731
      thread_stack= stack_size;
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3732
#endif
3733 3734 3735
    }
  }
#endif
3736 3737
#ifdef __NETWARE__
  /* Increasing stacksize of threads on NetWare */
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foo1  
grog@mysql.com[grog] committed
3738

3739 3740
  pthread_attr_setstacksize(&connection_attrib, NW_THD_STACKSIZE);
#endif
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3741

3742
  (void) thr_setconcurrency(concurrency);	// 10 by default
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3743

3744 3745
  select_thread=pthread_self();
  select_thread_in_use=1;
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hf@genie.(none) committed
3746 3747 3748 3749 3750 3751 3752
  init_ssl();

#ifdef HAVE_LIBWRAP
  libwrapName= my_progname+dirname_length(my_progname);
  openlog(libwrapName, LOG_PID, LOG_AUTH);
#endif

3753 3754 3755 3756
#ifndef DBUG_OFF
  test_lc_time_sz();
#endif

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3757 3758 3759
  /*
    We have enough space for fiddling with the argv, continue
  */
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monty@mashka.mysql.fi committed
3760
  check_data_home(mysql_real_data_home);
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3761 3762 3763 3764 3765 3766 3767
  if (my_setwd(mysql_real_data_home,MYF(MY_WME)))
  {
    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;
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3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778

  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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3779 3780 3781 3782 3783

  if (opt_bin_log && !server_id)
  {
    server_id= !master_host ? 1 : 2;
#ifdef EXTRA_DEBUG
3784
    switch (server_id) {
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hf@genie.(none) committed
3785
    case 1:
3786 3787
      sql_print_warning("\
You have enabled the binary log, but you haven't set server-id to \
3788 3789
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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3790 3791
      break;
    case 2:
3792 3793
      sql_print_warning("\
You should set server-id to a non-0 value if master_host is set; \
3794
we force server id to 2, but this MySQL server will not act as a slave.");
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3795 3796
      break;
    }
3797
#endif
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3798 3799 3800 3801 3802
  }

  if (init_server_components())
    exit(1);

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3803 3804
  network_init();

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3805 3806 3807
#ifdef __WIN__
  if (!opt_console)
  {
3808 3809
    freopen(log_error_file,"a+",stdout);
    freopen(log_error_file,"a+",stderr);
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3810
    FreeConsole();				// Remove window
3811
  }
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3812 3813
#endif

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3814 3815 3816 3817 3818 3819
  /*
   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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hf@genie.(none) committed
3820 3821 3822 3823
  /*
    init signals & alarm
    After this we can't quit by a simple unireg_abort
  */
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3824
  error_handler_hook= my_message_sql;
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3825
  start_signal_handler();				// Creates pidfile
3826
  if (mysql_rm_tmp_tables() || acl_init(opt_noacl) ||
3827
      my_tz_init((THD *)0, default_tz_name, opt_bootstrap))
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hf@genie.(none) committed
3828 3829 3830
  {
    abort_loop=1;
    select_thread_in_use=0;
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3831 3832 3833
#ifndef __NETWARE__
    (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL);
#endif /* __NETWARE__ */
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foo1  
grog@mysql.com[grog] committed
3834

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hf@genie.(none) committed
3835 3836
    if (!opt_bootstrap)
      (void) my_delete(pidfile_name,MYF(MY_WME));	// Not needed anymore
3837

3838
    if (unix_sock != INVALID_SOCKET)
3839
      unlink(mysqld_unix_port);
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hf@genie.(none) committed
3840 3841 3842
    exit(1);
  }
  if (!opt_noacl)
3843
    (void) grant_init();
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hf@genie.(none) committed
3844 3845 3846 3847 3848

#ifdef HAVE_DLOPEN
  if (!opt_noacl)
    udf_init();
#endif
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monty@mashka.mysql.fi committed
3849 3850
  if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
    opt_skip_slave_start= 1;
3851 3852 3853 3854 3855 3856 3857 3858 3859 3860 3861
  /*
    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)
  {
    end_thr_alarm(1);				// Don't allow alarms
    unireg_abort(1);
  }
3862

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hf@genie.(none) committed
3863 3864
  if (opt_bootstrap)
  {
3865
    select_thread_in_use= 0;                    // Allow 'kill' to work
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paul@kite-hub.kitebird.com committed
3866
    bootstrap(stdin);
3867
    end_thr_alarm(1);				// Don't allow alarms
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3868
    unireg_abort(bootstrap_error ? 1 : 0);
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3869 3870 3871 3872 3873
  }
  if (opt_init_file)
  {
    if (read_init_file(opt_init_file))
    {
3874
      end_thr_alarm(1);				// Don't allow alarms
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3875 3876 3877
      unireg_abort(1);
    }
  }
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3878

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3879
  create_shutdown_thread();
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3880 3881
  create_maintenance_thread();

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3882 3883 3884 3885 3886
  sql_print_information(ER(ER_STARTUP),my_progname,server_version,
                        ((unix_sock == INVALID_SOCKET) ? (char*) ""
                                                       : mysqld_unix_port),
                         mysqld_port,
                         MYSQL_COMPILATION_COMMENT);
3887 3888 3889
#if defined(_WIN32) && !defined(EMBEDDED_LIBRARY)
  Service.SetRunning();
#endif
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3890

3891 3892
#if defined(__NT__) || defined(HAVE_SMEM)
  handle_connections_methods();
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3893
#else
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3894
#ifdef __WIN__
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3895
  if (!have_tcpip || opt_disable_networking)
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miguel@hegel.txg.br committed
3896
  {
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miguel@hegel.txg.br committed
3897
    sql_print_error("TCP/IP unavailable or disabled with --skip-networking; no available interfaces");
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3898 3899 3900
    unireg_abort(1);
  }
#endif
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3901 3902 3903 3904
  handle_connections_sockets(0);
#endif /* __NT__ */

  /* (void) pthread_attr_destroy(&connection_attrib); */
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foo1  
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3905

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3906 3907 3908
  DBUG_PRINT("quit",("Exiting main thread"));

#ifndef __WIN__
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3909
#ifdef EXTRA_DEBUG2
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bk@work.mysql.com committed
3910 3911 3912
  sql_print_error("Before Lock_thread_count");
#endif
  (void) pthread_mutex_lock(&LOCK_thread_count);
3913
  DBUG_PRINT("quit", ("Got thread_count mutex"));
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3914 3915
  select_thread_in_use=0;			// For close_connections
  (void) pthread_mutex_unlock(&LOCK_thread_count);
3916
  (void) pthread_cond_broadcast(&COND_thread_count);
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3917
#ifdef EXTRA_DEBUG2
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3918 3919
  sql_print_error("After lock_thread_count");
#endif
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merge  
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3920
#endif /* __WIN__ */
3921

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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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merge  
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3927 3928

#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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merge  
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  if (Service.IsNT() && start_mode)
    Service.Stop();
  else
  {
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monty@donna.mysql.fi committed
3933
    Service.SetShutdownEvent(0);
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merge  
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3934 3935 3936
    if (hEventShutdown)
      CloseHandle(hEventShutdown);
  }
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3937
#endif
3938
  wait_for_signal_thread_to_end();
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3939
  clean_up_mutexes();
3940
  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
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foo1  
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  exit(0);
  return(0);					/* purecov: deadcode */
}

3946
#endif /* EMBEDDED_LIBRARY */
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SCRUM  
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/****************************************************************************
  Main and thread entry function for Win32
  (all this is needed only to run mysqld as a service on WinNT)
****************************************************************************/

3954
#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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int mysql_service(void *p)
{
3957 3958 3959 3960
  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;
}

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/* 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, ' '))
    return strnmov(to, from, length);
  return strxnmov(to, length, "\"", from, "\"", NullS);
}


3977 3978 3979 3980 3981
/*
  Handle basic handling of services, like installation and removal

  SYNOPSIS
    default_service_handling()
3982
    argv		Pointer to argument list
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    servicename		Internal name of service
    displayname		Display name of service (in taskbar ?)
    file_path		Path to this program
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    startup_option	Startup option to mysqld
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  RETURN VALUES
    0		option handled
    1		Could not handle option
 */

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static bool
default_service_handling(char **argv,
			 const char *servicename,
			 const char *displayname,
			 const char *file_path,
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			 const char *extra_opt,
			 const char *account_name)
4000
{
4001
  char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end;
4002
  end= path_and_service + sizeof(path_and_service)-3;
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  /* We have to quote filename if it contains spaces */
  pos= add_quoted_string(path_and_service, file_path, end);
  if (*extra_opt)
  {
    /* Add (possible quoted) option after file_path */
    *pos++= ' ';
    pos= add_quoted_string(pos, extra_opt, end);
  }
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  /* We must have servicename last */
  *pos++= ' ';
4014
  (void) add_quoted_string(pos, servicename, end);
4015

4016 4017
  if (Service.got_service_option(argv, "install"))
  {
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    Service.Install(1, servicename, displayname, path_and_service,
                    account_name);
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    return 0;
  }
  if (Service.got_service_option(argv, "install-manual"))
  {
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    Service.Install(0, servicename, displayname, path_and_service,
                    account_name);
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    return 0;
  }
  if (Service.got_service_option(argv, "remove"))
  {
    Service.Remove(servicename);
    return 0;
  }
  return 1;
}


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int main(int argc, char **argv)
{
4039

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  /*
    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
  */
4045
  int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name,
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                                                  "MySQLShutdown"), 10);

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

4051
  if (Service.GetOS())	/* true NT family */
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  {
4053
    char file_path[FN_REFLEN];
4054
    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);
4057

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    if (argc == 2)
4059
    {
4060
      if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME,
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				   file_path, "", NULL))
4062
	return 0;
4063
      if (Service.IsService(argv[1]))        /* Start an optional service */
4064
      {
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	/*
	  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.
	*/
4071
	if (my_strcasecmp(system_charset_info, argv[1],"mysql"))
4072
	  load_default_groups[load_default_groups_sz-2]= argv[1];
4073
        start_mode= 1;
4074
        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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      if (!default_service_handling(argv, argv[2], argv[2], file_path, "",
                                    NULL))
4082 4083
	return 0;
      if (Service.IsService(argv[2]))
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4084
      {
4085 4086 4087 4088
	/*
	  mysqld was started as
	  mysqld --defaults-file=my_path\my.ini service-name
	*/
4089
	use_opt_args=1;
4090
	opt_argc= 2;				// Skip service-name
4091 4092
	opt_argv=argv;
	start_mode= 1;
4093
	if (my_strcasecmp(system_charset_info, argv[2],"mysql"))
4094
	  load_default_groups[load_default_groups_sz-2]= argv[2];
4095
	Service.Init(argv[2], mysql_service);
4096
	return 0;
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      }
    }
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    else if (argc == 4 || argc == 5)
4100 4101
    {
      /*
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        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.)
4107
      */
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      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;
4123
    }
4124
    else if (argc == 1 && Service.IsService(MYSQL_SERVICENAME))
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4125
    {
4126 4127 4128
      /* start the default service */
      start_mode= 1;
      Service.Init(MYSQL_SERVICENAME, mysql_service);
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      return 0;
    }
  }
4132
  /* 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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/*
  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.
*/
4145

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static void bootstrap(FILE *file)
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{
4148
  DBUG_ENTER("bootstrap");
4149

4150
  THD *thd= new THD;
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4151
  thd->bootstrap=1;
4152
  my_net_init(&thd->net,(st_vio*) 0);
4153
  thd->max_client_packet_length= thd->net.max_packet;
4154
  thd->security_ctx->master_access= ~(ulong)0;
4155
  thd->thread_id=thread_id++;
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  thread_count++;
4157 4158

  bootstrap_file=file;
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#ifndef EMBEDDED_LIBRARY			// TODO:  Enable this
4160 4161 4162
  if (pthread_create(&thd->real_id,&connection_attrib,handle_bootstrap,
		     (void*) thd))
  {
4163
    sql_print_warning("Can't create thread to handle bootstrap");
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    bootstrap_error=-1;
    DBUG_VOID_RETURN;
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  }
  /* Wait for thread to die */
  (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);
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#else
  thd->mysql= 0;
  handle_bootstrap((void *)thd);
#endif

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  DBUG_VOID_RETURN;
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}

4183

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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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4191
  bootstrap(file);
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  (void) my_fclose(file,MYF(MY_WME));
  return 0;
}


4197
#ifndef EMBEDDED_LIBRARY
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/*
  Create new thread to handle incoming connection.

  SYNOPSIS
    create_new_thread()
      thd in/out    Thread handle of future thread.

  DESCRIPTION
    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'.

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

  RETURN VALUE
    none
*/

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static void create_new_thread(THD *thd)
{
4219
  NET *net=&thd->net;
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  DBUG_ENTER("create_new_thread");

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

  /* don't allow too many connections */
  if (thread_count - delayed_insert_threads >= max_connections+1 || abort_loop)
  {
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    DBUG_PRINT("error",("Too many connections"));
4229
    close_connection(thd, ER_CON_COUNT_ERROR, 1);
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    delete thd;
    DBUG_VOID_RETURN;
  }
4233
  pthread_mutex_lock(&LOCK_thread_count);
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4234
  thd->thread_id=thread_id++;
4235

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  thd->real_id=pthread_self();			// Keep purify happy

  /* Start a new thread to handle connection */
4239 4240
  thread_count++;

4241
#ifdef ONE_THREAD
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  if (test_flags & TEST_NO_THREADS)		// For debugging under Linux
  {
    thread_cache_size=0;			// Safety
    threads.append(thd);
    thd->real_id=pthread_self();
    (void) pthread_mutex_unlock(&LOCK_thread_count);
    handle_one_connection((void*) thd);
  }
  else
#endif
  {
4253 4254 4255
    if (thread_count-delayed_insert_threads > max_used_connections)
      max_used_connections=thread_count-delayed_insert_threads;

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    if (cached_thread_count > wake_thread)
    {
4258 4259 4260
      thread_cache.append(thd);
      wake_thread++;
      pthread_cond_signal(&COND_thread_cache);
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    }
    else
    {
      int error;
4265
      thread_created++;
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4266
      threads.append(thd);
4267
      DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id));
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      thd->connect_time = time(NULL);
      if ((error=pthread_create(&thd->real_id,&connection_attrib,
				handle_one_connection,
				(void*) thd)))
      {
	DBUG_PRINT("error",
		   ("Can't create thread to handle request (error %d)",
		    error));
	thread_count--;
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	thd->killed= THD::KILL_CONNECTION;			// Safety
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	(void) pthread_mutex_unlock(&LOCK_thread_count);
4279
	statistic_increment(aborted_connects,&LOCK_status);
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	net_printf_error(thd, ER_CANT_CREATE_THREAD, error);
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	(void) pthread_mutex_lock(&LOCK_thread_count);
4282
	close_connection(thd,0,0);
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	delete thd;
	(void) pthread_mutex_unlock(&LOCK_thread_count);
	DBUG_VOID_RETURN;
      }
    }
4288 4289
    (void) pthread_mutex_unlock(&LOCK_thread_count);

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4290
  }
4291
  DBUG_PRINT("info",("Thread created"));
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4292 4293
  DBUG_VOID_RETURN;
}
4294 4295
#endif /* EMBEDDED_LIBRARY */

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4296

4297 4298 4299 4300
#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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  if (
#if !defined(__NETWARE__)
      unix_sock == INVALID_SOCKET ||
#endif
4305
      (!opt_disable_networking && ip_sock == INVALID_SOCKET))
4306 4307
  {
    select_thread_in_use = 0;
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    /* The following call will never return */
    kill_server(IF_NETWARE(MYSQL_KILL_SIGNAL, (void*) MYSQL_KILL_SIGNAL));
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  }
}
#define MAYBE_BROKEN_SYSCALL kill_broken_server();
#else
#define MAYBE_BROKEN_SYSCALL
#endif
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4316 4317 4318

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

4319
#ifndef EMBEDDED_LIBRARY
4320
pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused)))
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{
  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;
4329
  st_vio *vio_tmp;
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  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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#ifdef HAVE_FCNTL
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  socket_flags=fcntl(unix_sock, F_GETFL, 0);
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#endif
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#endif

  DBUG_PRINT("general",("Waiting for connections."));
4352
  MAYBE_BROKEN_SYSCALL;
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  while (!abort_loop)
  {
    readFDs=clientFDs;
4356
#ifdef HPUX10
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    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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4362
      if (socket_errno != SOCKET_EINTR)
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      {
	if (!select_errors++ && !abort_loop)	/* purecov: inspected */
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4365
	  sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */
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4366
      }
4367
      MAYBE_BROKEN_SYSCALL
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      continue;
    }
4370
#endif	/* HPUX10 */
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4371
    if (abort_loop)
4372 4373
    {
      MAYBE_BROKEN_SYSCALL;
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4374
      break;
4375
    }
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4377
    /* Is this a new connection request ? */
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#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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#ifdef __NETWARE__
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      // 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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      if (new_sock != INVALID_SOCKET ||
	  (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN))
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	break;
4416
      MAYBE_BROKEN_SYSCALL;
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#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
4429
    if (new_sock == INVALID_SOCKET)
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4430 4431 4432
    {
      if ((error_count++ & 255) == 0)		// This can happen often
	sql_perror("Error in accept");
4433
      MAYBE_BROKEN_SYSCALL;
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4434
      if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE)
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4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445
	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);
4446 4447
	my_fromhost(&req);
	if (!my_hosts_access(&req))
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4448
	{
4449 4450 4451 4452 4453
	  /*
	    This may be stupid but refuse() includes an exit(0)
	    which we surely don't want...
	    clean_exit() - same stupid thing ...
	  */
4454
	  syslog(deny_severity, "refused connect from %s",
4455
		 my_eval_client(&req));
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4456

4457 4458 4459 4460 4461 4462
	  /*
	    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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4463 4464 4465
	  if (req.sink)
	    ((void (*)(int))req.sink)(req.fd);

4466
	  (void) shutdown(new_sock, SHUT_RDWR);
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4467 4468 4469 4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480
	  (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");
4481
	(void) shutdown(new_sock, SHUT_RDWR);
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4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492
	(void) closesocket(new_sock);
	continue;
      }
    }

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

    if (!(thd= new THD))
    {
4493
      (void) shutdown(new_sock, SHUT_RDWR);
4494
      VOID(closesocket(new_sock));
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4495 4496 4497
      continue;
    }
    if (!(vio_tmp=vio_new(new_sock,
4498
			  sock == unix_sock ? VIO_TYPE_SOCKET :
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4499
			  VIO_TYPE_TCPIP,
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4500
			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
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4501 4502
	my_net_init(&thd->net,vio_tmp))
    {
4503 4504 4505 4506 4507 4508 4509
      /*
        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);
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4510 4511
      else
      {
4512
	(void) shutdown(new_sock, SHUT_RDWR);
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4513 4514 4515 4516 4517 4518
	(void) closesocket(new_sock);
      }
      delete thd;
      continue;
    }
    if (sock == unix_sock)
4519
      thd->security_ctx->host=(char*) my_localhost;
4520

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4521 4522 4523
    create_new_thread(thd);
  }

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4524 4525 4526 4527
#ifdef OS2
  // kill server must be invoked from thread 1!
  kill_server(MYSQL_KILL_SIGNAL);
#endif
4528
  decrement_handler_count();
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4529 4530 4531 4532 4533
  DBUG_RETURN(0);
}


#ifdef __NT__
4534
pthread_handler_t handle_connections_namedpipes(void *arg)
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4535 4536 4537 4538 4539 4540 4541 4542 4543 4544 4545 4546
{
  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 */
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paul@kite-hub.kitebird.com committed
4547
    fConnected = ConnectNamedPipe(hPipe, NULL);
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4548 4549
    if (abort_loop)
      break;
4550
    if (!fConnected)
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bk@work.mysql.com committed
4551
      fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
4552
    if (!fConnected)
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bk@work.mysql.com committed
4553
    {
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4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567
      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)
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4568 4569 4570 4571 4572 4573 4574
      {
	sql_perror("Can't create new named pipe!");
	break;					// Abort
      }
    }
    hConnectedPipe = hPipe;
    /* create new pipe for new connection */
4575
    if ((hPipe = CreateNamedPipe(pipe_name,
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4576 4577 4578 4579 4580
				 PIPE_ACCESS_DUPLEX,
				 PIPE_TYPE_BYTE |
				 PIPE_READMODE_BYTE |
				 PIPE_WAIT,
				 PIPE_UNLIMITED_INSTANCES,
4581 4582
				 (int) global_system_variables.net_buffer_length,
				 (int) global_system_variables.net_buffer_length,
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4583 4584 4585 4586 4587 4588 4589 4590 4591
				 NMPWAIT_USE_DEFAULT_WAIT,
				 &saPipeSecurity)) ==
	INVALID_HANDLE_VALUE)
    {
      sql_perror("Can't create new named pipe!");
      hPipe=hConnectedPipe;
      continue;					// We have to try again
    }

4592
    if (!(thd = new THD))
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bk@work.mysql.com committed
4593
    {
paul@kite-hub.kitebird.com's avatar
paul@kite-hub.kitebird.com committed
4594 4595
      DisconnectNamedPipe(hConnectedPipe);
      CloseHandle(hConnectedPipe);
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bk@work.mysql.com committed
4596 4597 4598 4599 4600
      continue;
    }
    if (!(thd->net.vio = vio_new_win32pipe(hConnectedPipe)) ||
	my_net_init(&thd->net, thd->net.vio))
    {
4601
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
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bk@work.mysql.com committed
4602 4603 4604
      delete thd;
      continue;
    }
4605 4606
    /* Host is unknown */
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0));
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4607 4608 4609
    create_new_thread(thd);
  }

4610
  decrement_handler_count();
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4611 4612 4613 4614
  DBUG_RETURN(0);
}
#endif /* __NT__ */

4615

4616
/*
4617 4618 4619
  Thread of shared memory's service

  SYNOPSIS
4620
    handle_connections_shared_memory()
4621 4622
    arg                              Arguments of thread
*/
4623

4624
#ifdef HAVE_SMEM
4625
pthread_handler_t handle_connections_shared_memory(void *arg)
4626
{
4627 4628
  /* file-mapping object, use for create shared memory */
  HANDLE handle_connect_file_map= 0;
4629
  char  *handle_connect_map= 0;                 // pointer on shared memory
4630 4631 4632
  HANDLE event_connect_answer= 0;
  ulong smem_buffer_length= shared_memory_buffer_length + 4;
  ulong connect_number= 1;
4633
  char *tmp= NULL;
4634 4635
  char *suffix_pos;
  char connect_number_char[22], *p;
4636
  const char *errmsg= 0;
4637
  SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0;
4638 4639 4640 4641
  my_thread_init();
  DBUG_ENTER("handle_connections_shared_memorys");
  DBUG_PRINT("general",("Waiting for allocated shared memory."));

4642 4643 4644 4645 4646 4647
  /*
     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;

4648 4649 4650 4651 4652 4653 4654 4655
  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;

4656 4657 4658 4659 4660 4661 4662
  /*
    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)
  */
4663
  suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS);
4664
  strmov(suffix_pos, "CONNECT_REQUEST");
4665 4666
  if ((smem_event_connect_request= CreateEvent(sa_event,
                                               FALSE, FALSE, tmp)) == 0)
4667
  {
4668
    errmsg= "Could not create request event";
4669 4670
    goto error;
  }
4671
  strmov(suffix_pos, "CONNECT_ANSWER");
4672
  if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4673
  {
4674
    errmsg="Could not create answer event";
4675 4676
    goto error;
  }
4677
  strmov(suffix_pos, "CONNECT_DATA");
4678 4679 4680
  if ((handle_connect_file_map=
       CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                         PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0)
4681
  {
4682
    errmsg= "Could not create file mapping";
4683 4684
    goto error;
  }
4685 4686 4687
  if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map,
						  FILE_MAP_WRITE,0,0,
						  sizeof(DWORD))) == 0)
4688
  {
4689
    errmsg= "Could not create shared memory service";
4690 4691 4692 4693 4694
    goto error;
  }

  while (!abort_loop)
  {
4695
    /* Wait a request from client */
4696
    WaitForSingleObject(smem_event_connect_request,INFINITE);
4697

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wax@kishkin.ru committed
4698 4699 4700
    /*
       it can be after shutdown command
    */
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paul@kite-hub.kitebird.com committed
4701
    if (abort_loop)
wax@kishkin.ru's avatar
wax@kishkin.ru committed
4702
      goto error;
4703

4704 4705 4706 4707 4708 4709
    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;
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wax@kishkin.ru committed
4710
    HANDLE event_conn_closed= 0;
4711
    THD *thd= 0;
4712

4713
    p= int10_to_str(connect_number, connect_number_char, 10);
4714 4715 4716 4717 4718 4719 4720 4721 4722 4723
    /*
      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);
4724
    strmov(suffix_pos, "DATA");
4725 4726 4727
    if ((handle_client_file_map=
         CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                           PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0)
4728
    {
4729
      errmsg= "Could not create file mapping";
4730 4731
      goto errorconn;
    }
4732 4733 4734
    if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map,
						  FILE_MAP_WRITE,0,0,
						  smem_buffer_length)) == 0)
4735
    {
4736
      errmsg= "Could not create memory map";
4737 4738 4739
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_WROTE");
4740
    if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4741
    {
4742
      errmsg= "Could not create client write event";
4743 4744 4745
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_READ");
4746
    if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4747
    {
4748
      errmsg= "Could not create client read event";
4749 4750 4751
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_READ");
4752
    if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4753
    {
4754
      errmsg= "Could not create server read event";
4755 4756 4757
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_WROTE");
4758 4759
    if ((event_server_wrote= CreateEvent(sa_event,
                                         FALSE, FALSE, tmp)) == 0)
4760
    {
4761
      errmsg= "Could not create server write event";
4762 4763
      goto errorconn;
    }
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wax@kishkin.ru committed
4764
    strmov(suffix_pos, "CONNECTION_CLOSED");
4765 4766
    if ((event_conn_closed= CreateEvent(sa_event,
                                        TRUE, FALSE, tmp)) == 0)
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wax@kishkin.ru committed
4767 4768 4769 4770
    {
      errmsg= "Could not create closed connection event";
      goto errorconn;
    }
4771
    if (abort_loop)
4772
      goto errorconn;
4773 4774 4775
    if (!(thd= new THD))
      goto errorconn;
    /* Send number of connection to client */
4776
    int4store(handle_connect_map, connect_number);
4777
    if (!SetEvent(event_connect_answer))
4778
    {
4779
      errmsg= "Could not send answer event";
4780 4781
      goto errorconn;
    }
4782
    /* Set event that client should receive data */
4783 4784
    if (!SetEvent(event_client_read))
    {
4785
      errmsg= "Could not set client to read mode";
4786 4787
      goto errorconn;
    }
4788
    if (!(thd->net.vio= vio_new_win32shared_memory(&thd->net,
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wax@kishkin.ru committed
4789 4790 4791 4792 4793 4794
                                                   handle_client_file_map,
                                                   handle_client_map,
                                                   event_client_wrote,
                                                   event_client_read,
                                                   event_server_wrote,
                                                   event_server_read,
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wax@kishkin.ru committed
4795
                                                   event_conn_closed)) ||
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wax@kishkin.ru committed
4796
                        my_net_init(&thd->net, thd->net.vio))
4797
    {
4798
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
4799 4800
      errmsg= 0;
      goto errorconn;
4801
    }
4802
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */
4803
    create_new_thread(thd);
4804 4805 4806 4807 4808 4809 4810 4811 4812 4813 4814 4815
    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);
    }
grog@mysql.com[grog]'s avatar
foo1  
grog@mysql.com[grog] committed
4816
    if (handle_client_file_map)
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wax@kishkin.ru committed
4817 4818 4819 4820 4821 4822 4823 4824 4825 4826 4827 4828 4829
      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);
4830
    delete thd;
4831
  }
4832 4833

  /* End shared memory handling */
4834
error:
4835 4836 4837
  if (tmp)
    my_free(tmp, MYF(0));

4838 4839 4840 4841 4842 4843
  if (errmsg)
  {
    char buff[180];
    strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS);
    sql_perror(buff);
  }
4844 4845
  my_security_attr_free(sa_event);
  my_security_attr_free(sa_mapping);
4846 4847 4848
  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);
4849
  if (smem_event_connect_request) CloseHandle(smem_event_connect_request);
4850 4851

  decrement_handler_count();
4852 4853 4854
  DBUG_RETURN(0);
}
#endif /* HAVE_SMEM */
4855
#endif /* EMBEDDED_LIBRARY */
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4856

4857 4858 4859

/****************************************************************************
  Handle start options
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4860 4861
******************************************************************************/

monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
4862
enum options_mysqld
4863
{
grog@mysql.com[grog]'s avatar
foo1  
grog@mysql.com[grog] committed
4864 4865
  OPT_ISAM_LOG=256,            OPT_SKIP_NEW,
  OPT_SKIP_GRANT,              OPT_SKIP_LOCK,
4866
  OPT_ENABLE_LOCK,             OPT_USE_LOCKING,
4867 4868
  OPT_SOCKET,                  OPT_UPDATE_LOG,
  OPT_BIN_LOG,                 OPT_SKIP_RESOLVE,
4869 4870
  OPT_SKIP_NETWORKING,         OPT_BIN_LOG_INDEX,
  OPT_BIND_ADDRESS,            OPT_PID_FILE,
4871
  OPT_SKIP_PRIOR,              OPT_BIG_TABLES,
4872 4873
  OPT_STANDALONE,              OPT_ONE_THREAD,
  OPT_CONSOLE,                 OPT_LOW_PRIORITY_UPDATES,
4874
  OPT_SKIP_HOST_CACHE,         OPT_SHORT_LOG_FORMAT,
4875
  OPT_FLUSH,                   OPT_SAFE,
4876
  OPT_BOOTSTRAP,               OPT_SKIP_SHOW_DB,
4877
  OPT_STORAGE_ENGINE,          OPT_INIT_FILE,
4878
  OPT_DELAY_KEY_WRITE_ALL,     OPT_SLOW_QUERY_LOG,
4879
  OPT_DELAY_KEY_WRITE,	       OPT_CHARSETS_DIR,
4880
  OPT_BDB_HOME,                OPT_BDB_LOG,
4881
  OPT_BDB_TMP,                 OPT_BDB_SYNC,
4882
  OPT_BDB_LOCK,                OPT_BDB,
4883 4884 4885 4886
  OPT_BDB_NO_RECOVER,	    OPT_BDB_SHARED,
  OPT_MASTER_HOST,             OPT_MASTER_USER,
  OPT_MASTER_PASSWORD,         OPT_MASTER_PORT,
  OPT_MASTER_INFO_FILE,        OPT_MASTER_CONNECT_RETRY,
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paul@kite-hub.kitebird.com committed
4887
  OPT_MASTER_RETRY_COUNT,      OPT_LOG_TC, OPT_LOG_TC_SIZE,
4888 4889
  OPT_MASTER_SSL,              OPT_MASTER_SSL_KEY,
  OPT_MASTER_SSL_CERT,         OPT_MASTER_SSL_CAPATH,
4890
  OPT_MASTER_SSL_CIPHER,       OPT_MASTER_SSL_CA,
4891
  OPT_SQL_BIN_UPDATE_SAME,     OPT_REPLICATE_DO_DB,
4892 4893 4894 4895
  OPT_REPLICATE_IGNORE_DB,     OPT_LOG_SLAVE_UPDATES,
  OPT_BINLOG_DO_DB,            OPT_BINLOG_IGNORE_DB,
  OPT_WANT_CORE,               OPT_CONCURRENT_INSERT,
  OPT_MEMLOCK,                 OPT_MYISAM_RECOVER,
4896
  OPT_REPLICATE_REWRITE_DB,    OPT_SERVER_ID,
4897
  OPT_SKIP_SLAVE_START,        OPT_SKIP_INNOBASE,
4898 4899
  OPT_SAFEMALLOC_MEM_LIMIT,    OPT_REPLICATE_DO_TABLE,
  OPT_REPLICATE_IGNORE_TABLE,  OPT_REPLICATE_WILD_DO_TABLE,
4900
  OPT_REPLICATE_WILD_IGNORE_TABLE, OPT_REPLICATE_SAME_SERVER_ID,
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paul@kite-hub.kitebird.com committed
4901
  OPT_DISCONNECT_SLAVE_EVENT_COUNT, OPT_TC_HEURISTIC_RECOVER,
4902 4903 4904
  OPT_ABORT_SLAVE_EVENT_COUNT,
  OPT_INNODB_DATA_HOME_DIR,
  OPT_INNODB_DATA_FILE_PATH,
4905 4906 4907 4908 4909
  OPT_INNODB_LOG_GROUP_HOME_DIR,
  OPT_INNODB_LOG_ARCH_DIR,
  OPT_INNODB_LOG_ARCHIVE,
  OPT_INNODB_FLUSH_LOG_AT_TRX_COMMIT,
  OPT_INNODB_FLUSH_METHOD,
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  OPT_INNODB_DOUBLEWRITE,
  OPT_INNODB_CHECKSUMS,
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  OPT_INNODB_FAST_SHUTDOWN,
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  OPT_INNODB_FILE_PER_TABLE, OPT_CRASH_BINLOG_INNODB,
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  OPT_INNODB_LOCKS_UNSAFE_FOR_BINLOG,
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  OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
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  OPT_SAFE_SHOW_DB, OPT_INNODB_SAFE_BINLOG,
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  OPT_INNODB, OPT_ISAM,
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  OPT_ENGINE_CONDITION_PUSHDOWN, OPT_NDBCLUSTER, OPT_NDB_CONNECTSTRING, 
  OPT_NDB_USE_EXACT_COUNT, OPT_NDB_USE_TRANSACTIONS,
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  OPT_NDB_FORCE_SEND, OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
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  OPT_NDB_SHM, OPT_NDB_OPTIMIZED_NODE_SELECTION, OPT_NDB_CACHE_CHECK_TIME,
  OPT_NDB_MGMD, OPT_NDB_NODEID,
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  OPT_SKIP_SAFEMALLOC,
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  OPT_TEMP_POOL, OPT_TX_ISOLATION, OPT_COMPLETION_TYPE,
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  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,
  OPT_DO_PSTACK, OPT_REPORT_HOST,
  OPT_REPORT_USER, OPT_REPORT_PASSWORD, OPT_REPORT_PORT,
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  OPT_SHOW_SLAVE_AUTH_INFO,
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  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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  OPT_FLUSH_TIME, OPT_FT_MIN_WORD_LEN, OPT_FT_BOOLEAN_SYNTAX,
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  OPT_FT_MAX_WORD_LEN, OPT_FT_QUERY_EXPANSION_LIMIT, OPT_FT_STOPWORD_FILE,
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  OPT_INTERACTIVE_TIMEOUT, OPT_JOIN_BUFF_SIZE,
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  OPT_KEY_BUFFER_SIZE, OPT_KEY_CACHE_BLOCK_SIZE,
  OPT_KEY_CACHE_DIVISION_LIMIT, OPT_KEY_CACHE_AGE_THRESHOLD,
  OPT_LONG_QUERY_TIME,
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  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,
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  OPT_MAX_JOIN_SIZE, OPT_MAX_PREPARED_STMT_COUNT,
  OPT_MAX_RELAY_LOG_SIZE, OPT_MAX_SORT_LENGTH,
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  OPT_MAX_SEEKS_FOR_KEY, OPT_MAX_TMP_TABLES, OPT_MAX_USER_CONNECTIONS,
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  OPT_MAX_LENGTH_FOR_SORT_DATA,
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  OPT_MAX_WRITE_LOCK_COUNT, OPT_BULK_INSERT_BUFFER_SIZE,
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  OPT_MAX_ERROR_COUNT, OPT_MULTI_RANGE_COUNT, OPT_MYISAM_DATA_POINTER_SIZE,
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  OPT_MYISAM_BLOCK_SIZE, OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
  OPT_MYISAM_MAX_SORT_FILE_SIZE, OPT_MYISAM_SORT_BUFFER_SIZE,
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  OPT_MYISAM_STATS_METHOD,
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  OPT_NET_BUFFER_LENGTH, OPT_NET_RETRY_COUNT,
  OPT_NET_READ_TIMEOUT, OPT_NET_WRITE_TIMEOUT,
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  OPT_OPEN_FILES_LIMIT,
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  OPT_PRELOAD_BUFFER_SIZE,
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  OPT_QUERY_CACHE_LIMIT, OPT_QUERY_CACHE_MIN_RES_UNIT, OPT_QUERY_CACHE_SIZE,
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  OPT_QUERY_CACHE_TYPE, OPT_QUERY_CACHE_WLOCK_INVALIDATE, OPT_RECORD_BUFFER,
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  OPT_RECORD_RND_BUFFER, OPT_DIV_PRECINCREMENT, OPT_RELAY_LOG_SPACE_LIMIT,
  OPT_RELAY_LOG_PURGE,
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  OPT_SLAVE_NET_TIMEOUT, OPT_SLAVE_COMPRESSED_PROTOCOL, OPT_SLOW_LAUNCH_TIME,
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  OPT_SLAVE_TRANS_RETRIES, OPT_READONLY, OPT_DEBUGGING,
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  OPT_SORT_BUFFER, OPT_TABLE_CACHE,
  OPT_THREAD_CONCURRENCY, OPT_THREAD_CACHE_SIZE,
  OPT_TMP_TABLE_SIZE, OPT_THREAD_STACK,
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  OPT_WAIT_TIMEOUT, OPT_MYISAM_REPAIR_THREADS,
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  OPT_INNODB_MIRRORED_LOG_GROUPS,
  OPT_INNODB_LOG_FILES_IN_GROUP,
  OPT_INNODB_LOG_FILE_SIZE,
  OPT_INNODB_LOG_BUFFER_SIZE,
  OPT_INNODB_BUFFER_POOL_SIZE,
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  OPT_INNODB_BUFFER_POOL_AWE_MEM_MB,
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  OPT_INNODB_ADDITIONAL_MEM_POOL_SIZE,
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  OPT_INNODB_MAX_PURGE_LAG,
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  OPT_INNODB_FILE_IO_THREADS,
  OPT_INNODB_LOCK_WAIT_TIMEOUT,
  OPT_INNODB_THREAD_CONCURRENCY,
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  OPT_INNODB_COMMIT_CONCURRENCY,
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  OPT_INNODB_FORCE_RECOVERY,
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  OPT_INNODB_STATUS_FILE,
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  OPT_INNODB_MAX_DIRTY_PAGES_PCT,
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  OPT_INNODB_TABLE_LOCKS,
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  OPT_INNODB_SUPPORT_XA,
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  OPT_INNODB_OPEN_FILES,
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  OPT_INNODB_AUTOEXTEND_INCREMENT,
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  OPT_INNODB_SYNC_SPIN_LOOPS,
  OPT_INNODB_CONCURRENCY_TICKETS,
  OPT_INNODB_THREAD_SLEEP_DELAY,
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  OPT_BDB_CACHE_SIZE,
  OPT_BDB_LOG_BUFFER_SIZE,
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  OPT_BDB_MAX_LOCK,
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merge  
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  OPT_ERROR_LOG_FILE,
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  OPT_DEFAULT_WEEK_FORMAT,
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  OPT_RANGE_ALLOC_BLOCK_SIZE, OPT_ALLOW_SUSPICIOUS_UDFS,
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  OPT_QUERY_ALLOC_BLOCK_SIZE, OPT_QUERY_PREALLOC_SIZE,
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  OPT_TRANS_ALLOC_BLOCK_SIZE, OPT_TRANS_PREALLOC_SIZE,
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  OPT_SYNC_FRM, OPT_SYNC_BINLOG,
  OPT_SYNC_REPLICATION,
  OPT_SYNC_REPLICATION_SLAVE_ID,
  OPT_SYNC_REPLICATION_TIMEOUT,
  OPT_BDB_NOSYNC,
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  OPT_ENABLE_SHARED_MEMORY,
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  OPT_SHARED_MEMORY_BASE_NAME,
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  OPT_OLD_PASSWORDS,
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  OPT_EXPIRE_LOGS_DAYS,
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  OPT_GROUP_CONCAT_MAX_LEN,
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  OPT_DEFAULT_COLLATION,
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  OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
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  OPT_CHARACTER_SET_FILESYSTEM,
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  OPT_LC_TIME_NAMES,
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  OPT_INIT_CONNECT,
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  OPT_INIT_SLAVE,
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  OPT_SECURE_AUTH,
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  OPT_DATE_FORMAT,
  OPT_TIME_FORMAT,
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  OPT_DATETIME_FORMAT,
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  OPT_LOG_QUERIES_NOT_USING_INDEXES,
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  OPT_DEFAULT_TIME_ZONE,
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  OPT_SYSDATE_IS_NOW,
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  OPT_OPTIMIZER_SEARCH_DEPTH,
  OPT_OPTIMIZER_PRUNE_LEVEL,
  OPT_UPDATABLE_VIEWS_WITH_LIMIT,
  OPT_SP_AUTOMATIC_PRIVILEGES,
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  OPT_MAX_SP_RECURSION_DEPTH,
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  OPT_AUTO_INCREMENT, OPT_AUTO_INCREMENT_OFFSET,
  OPT_ENABLE_LARGE_PAGES,
  OPT_TIMED_MUTEXES,
  OPT_OLD_STYLE_USER_LIMITS,
  OPT_LOG_SLOW_ADMIN_STATEMENTS,
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  OPT_TABLE_LOCK_WAIT_TIMEOUT,
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  OPT_PLUGIN_DIR,
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  OPT_PORT_OPEN_TIMEOUT,
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  OPT_MERGE,
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  OPT_INNODB_ROLLBACK_ON_TIMEOUT,
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  OPT_SECURE_FILE_PRIV,
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  OPT_KEEP_FILES_ON_CREATE,
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  OPT_INNODB_ADAPTIVE_HASH_INDEX,
  OPT_FEDERATED
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};
5047

5048 5049 5050

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

5051
struct my_option my_long_options[] =
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{
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foo1  
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  {"help", '?', "Display this help and exit.",
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   (gptr*) &opt_help, (gptr*) &opt_help, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
   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.",
   (gptr*) &abort_slave_event_count,  (gptr*) &abort_slave_event_count,
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif /* HAVE_REPLICATION */
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  {"allow-suspicious-udfs", OPT_ALLOW_SUSPICIOUS_UDFS,
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   "Allows use of UDFs consisting of only one symbol xxx() "
   "without corresponding xxx_init() or xxx_deinit(). That also means "
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   "that one can load any function from any library, for example exit() "
   "from libc.so",
   (gptr*) &opt_allow_suspicious_udfs, (gptr*) &opt_allow_suspicious_udfs,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"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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  {"auto-increment-increment", OPT_AUTO_INCREMENT,
   "Auto-increment columns are incremented by this",
   (gptr*) &global_system_variables.auto_increment_increment,
   (gptr*) &max_system_variables.auto_increment_increment, 0, GET_ULONG,
   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",
   (gptr*) &global_system_variables.auto_increment_offset,
   (gptr*) &max_system_variables.auto_increment_offset, 0, GET_ULONG, OPT_ARG,
   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.",
   (gptr*) &sp_automatic_privileges, (gptr*) &sp_automatic_privileges,
   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"basedir", 'b',
   "Path to installation directory. All paths are usually resolved relative to this.",
   (gptr*) &mysql_home_ptr, (gptr*) &mysql_home_ptr, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
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  {"bdb", OPT_BDB, "Enable Berkeley DB (if this version of MySQL supports it). \
Disable with --skip-bdb (will save memory).",
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   (gptr*) &opt_bdb, (gptr*) &opt_bdb, 0, GET_BOOL, NO_ARG, OPT_BDB_DEFAULT, 0, 0,
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   0, 0, 0},
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#ifdef HAVE_BERKELEY_DB
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  {"bdb-home", OPT_BDB_HOME, "Berkeley home directory.", (gptr*) &berkeley_home,
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   (gptr*) &berkeley_home, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"bdb-lock-detect", OPT_BDB_LOCK,
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   "Berkeley lock detect (DEFAULT, OLDEST, RANDOM or YOUNGEST, # sec).",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"bdb-logdir", OPT_BDB_LOG, "Berkeley DB log file directory.",
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   (gptr*) &berkeley_logdir, (gptr*) &berkeley_logdir, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"bdb-no-recover", OPT_BDB_NO_RECOVER,
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   "Don't try to recover Berkeley DB tables on start.", 0, 0, 0, GET_NO_ARG,
5104
   NO_ARG, 0, 0, 0, 0, 0, 0},
5105
  {"bdb-no-sync", OPT_BDB_NOSYNC,
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   "This option is deprecated, use --skip-sync-bdb-logs instead",
5107
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"bdb-shared-data", OPT_BDB_SHARED,
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   "Start Berkeley DB in multi-process mode.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0,
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   0, 0, 0, 0, 0},
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  {"bdb-tmpdir", OPT_BDB_TMP, "Berkeley DB tempfile name.",
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   (gptr*) &berkeley_tmpdir, (gptr*) &berkeley_tmpdir, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif /* HAVE_BERKELEY_DB */
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  {"big-tables", OPT_BIG_TABLES,
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   "Allow big result sets by saving all temporary sets on file (Solves most 'table full' errors).",
5117
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"bind-address", OPT_BIND_ADDRESS, "IP address to bind to.",
   (gptr*) &my_bind_addr_str, (gptr*) &my_bind_addr_str, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"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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  {"binlog-ignore-db", OPT_BINLOG_IGNORE_DB,
5125
   "Tells the master that updates to the given database should not be logged tothe binary log.",
5126
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5127
#ifndef DISABLE_GRANT_OPTIONS
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  {"bootstrap", OPT_BOOTSTRAP, "Used by mysql installation scripts.", 0, 0, 0,
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   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5130
#endif
5131
  {"character-set-client-handshake", OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
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   "Don't ignore client side character set value sent during handshake.",
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   (gptr*) &opt_character_set_client_handshake,
   (gptr*) &opt_character_set_client_handshake,
    0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"character-set-filesystem", OPT_CHARACTER_SET_FILESYSTEM,
   "Set the filesystem character set.",
   (gptr*) &character_set_filesystem_name,
   (gptr*) &character_set_filesystem_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"character-set-server", 'C', "Set the default character set.",
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   (gptr*) &default_character_set_name, (gptr*) &default_character_set_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"character-sets-dir", OPT_CHARSETS_DIR,
   "Directory where character sets are.", (gptr*) &charsets_dir,
   (gptr*) &charsets_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"chroot", 'r', "Chroot mysqld daemon during startup.",
   (gptr*) &mysqld_chroot, (gptr*) &mysqld_chroot, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
  {"collation-server", OPT_DEFAULT_COLLATION, "Set the default collation.",
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   (gptr*) &default_collation_name, (gptr*) &default_collation_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"completion-type", OPT_COMPLETION_TYPE, "Default completion type.",
   (gptr*) &global_system_variables.completion_type,
   (gptr*) &max_system_variables.completion_type, 0, GET_ULONG,
   REQUIRED_ARG, 0, 0, 2, 0, 1, 0},
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  {"concurrent-insert", OPT_CONCURRENT_INSERT,
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   "Use concurrent insert with MyISAM. Disable with --concurrent-insert=0",
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   (gptr*) &myisam_concurrent_insert, (gptr*) &myisam_concurrent_insert,
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   0, GET_ULONG, OPT_ARG, 1, 0, 2, 0, 0, 0},
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  {"console", OPT_CONSOLE, "Write error output on screen; Don't remove the console window on windows.",
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   (gptr*) &opt_console, (gptr*) &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0,
   0, 0, 0},
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  {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
5166
  {"datadir", 'h', "Path to the database root.", (gptr*) &mysql_data_home,
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   (gptr*) &mysql_data_home, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#ifndef DBUG_OFF
  {"debug", '#', "Debug log.", (gptr*) &default_dbug_option,
   (gptr*) &default_dbug_option, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"default-character-set", 'C', "Set the default character set (deprecated option, use --character-set-server instead).",
5173
   (gptr*) &default_character_set_name, (gptr*) &default_character_set_name,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"default-collation", OPT_DEFAULT_COLLATION, "Set the default collation (deprecated option, use --collation-server instead).",
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   (gptr*) &default_collation_name, (gptr*) &default_collation_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
5178
  {"default-storage-engine", OPT_STORAGE_ENGINE,
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   "Set the default storage engine (table type) for tables.", 0, 0,
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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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   "(deprecated) Use --default-storage-engine.", 0, 0,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"default-time-zone", OPT_DEFAULT_TIME_ZONE, "Set the default time zone.",
   (gptr*) &default_tz_name, (gptr*) &default_tz_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"delay-key-write", OPT_DELAY_KEY_WRITE, "Type of DELAY_KEY_WRITE.",
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   0,0,0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
  {"delay-key-write-for-all-tables", OPT_DELAY_KEY_WRITE_ALL,
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   "Don't flush key buffers between writes for any MyISAM table (Deprecated option, use --delay-key-write=all instead).",
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   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.",
   (gptr*) &des_key_file, (gptr*) &des_key_file, 0, GET_STR, REQUIRED_ARG,
   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.",
   (gptr*) &disconnect_slave_event_count,
   (gptr*) &disconnect_slave_event_count, 0, GET_INT, REQUIRED_ARG, 0, 0, 0,
   0, 0, 0},
#endif /* HAVE_REPLICATION */
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  {"enable-locking", OPT_ENABLE_LOCK,
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   "Deprecated option, use --external-locking instead.",
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   (gptr*) &opt_external_locking, (gptr*) &opt_external_locking,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef __NT__
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  {"enable-named-pipe", OPT_HAVE_NAMED_PIPE, "Enable the named pipe (NT).",
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   (gptr*) &opt_enable_named_pipe, (gptr*) &opt_enable_named_pipe, 0, GET_BOOL,
   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"enable-pstack", OPT_DO_PSTACK, "Print a symbolic stack trace on failure.",
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   (gptr*) &opt_do_pstack, (gptr*) &opt_do_pstack, 0, GET_BOOL, NO_ARG, 0, 0,
   0, 0, 0, 0},
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  {"engine-condition-pushdown",
   OPT_ENGINE_CONDITION_PUSHDOWN,
   "Push supported query conditions to the storage engine.",
   (gptr*) &global_system_variables.engine_condition_pushdown,
   (gptr*) &global_system_variables.engine_condition_pushdown,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"exit-info", 'T', "Used for debugging;  Use at your own risk!", 0, 0, 0,
   GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"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.",
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   (gptr*) &opt_external_locking, (gptr*) &opt_external_locking,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"flush", OPT_FLUSH, "Flush tables to disk between SQL commands.", 0, 0, 0,
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   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"federated", OPT_FEDERATED, "Enable Federated storage engine. Disable with \
--skip-federated.",
   (gptr*) &opt_federated, (gptr*) &opt_federated, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  /* We must always support the next option to make scripts like mysqltest
     easier to do */
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  {"gdb", OPT_DEBUGGING,
   "Set up signals usable for debugging",
   (gptr*) &opt_debugging, (gptr*) &opt_debugging,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_LARGE_PAGES
  {"large-pages", OPT_ENABLE_LARGE_PAGES, "Enable support for large pages. \
Disable with --skip-large-pages.",
   (gptr*) &opt_large_pages, (gptr*) &opt_large_pages, 0, GET_BOOL, NO_ARG, 0, 0, 0,
   0, 0, 0},
#endif
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  {"init-connect", OPT_INIT_CONNECT, "Command(s) that are executed for each new connection",
   (gptr*) &opt_init_connect, (gptr*) &opt_init_connect, 0, GET_STR_ALLOC,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef DISABLE_GRANT_OPTIONS
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  {"init-file", OPT_INIT_FILE, "Read SQL commands from this file at startup.",
   (gptr*) &opt_init_file, (gptr*) &opt_init_file, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
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#endif
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  {"init-rpl-role", OPT_INIT_RPL_ROLE, "Set the replication role.", 0, 0, 0,
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   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"init-slave", OPT_INIT_SLAVE, "Command(s) that are executed when a slave connects to this master",
   (gptr*) &opt_init_slave, (gptr*) &opt_init_slave, 0, GET_STR_ALLOC,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"innodb", OPT_INNODB, "Enable InnoDB (if this version of MySQL supports it). \
Disable with --skip-innodb (will save memory).",
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   (gptr*) &opt_innodb, (gptr*) &opt_innodb, 0, GET_BOOL, NO_ARG, OPT_INNODB_DEFAULT, 0, 0,
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   0, 0, 0},
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#ifdef HAVE_INNOBASE_DB
  {"innodb_checksums", OPT_INNODB_CHECKSUMS, "Enable InnoDB checksums validation (enabled by default). \
Disable with --skip-innodb-checksums.", (gptr*) &innobase_use_checksums,
   (gptr*) &innobase_use_checksums, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
#endif
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  {"innodb_data_file_path", OPT_INNODB_DATA_FILE_PATH,
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   "Path to individual files and their sizes.",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef HAVE_INNOBASE_DB
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  {"innodb_data_home_dir", OPT_INNODB_DATA_HOME_DIR,
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   "The common part for InnoDB table spaces.", (gptr*) &innobase_data_home_dir,
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   (gptr*) &innobase_data_home_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0,
   0},
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  {"innodb_adaptive_hash_index", OPT_INNODB_ADAPTIVE_HASH_INDEX,
   "Enable InnoDB adaptive hash index (enabled by default).  "
   "Disable with --skip-innodb-adaptive-hash-index.",
   (gptr*) &innobase_adaptive_hash_index,
   (gptr*) &innobase_adaptive_hash_index,
   0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"innodb_doublewrite", OPT_INNODB_DOUBLEWRITE, "Enable InnoDB doublewrite buffer (enabled by default). \
Disable with --skip-innodb-doublewrite.", (gptr*) &innobase_use_doublewrite,
   (gptr*) &innobase_use_doublewrite, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
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  {"innodb_fast_shutdown", OPT_INNODB_FAST_SHUTDOWN,
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   "Speeds up the shutdown process of the InnoDB storage engine. Possible "
   "values are 0, 1 (faster)"
   /*
     NetWare can't close unclosed files, can't automatically kill remaining
     threads, etc, so on this OS we disable the crash-like InnoDB shutdown.
   */
#ifndef __NETWARE__
   " or 2 (fastest - crash-like)"
#endif
   ".",
   (gptr*) &innobase_fast_shutdown,
   (gptr*) &innobase_fast_shutdown, 0, GET_ULONG, OPT_ARG, 1, 0,
   IF_NETWARE(1,2), 0, 0, 0},
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  {"innodb_file_per_table", OPT_INNODB_FILE_PER_TABLE,
   "Stores each InnoDB table to an .ibd file in the database dir.",
   (gptr*) &innobase_file_per_table,
   (gptr*) &innobase_file_per_table, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"innodb_flush_log_at_trx_commit", OPT_INNODB_FLUSH_LOG_AT_TRX_COMMIT,
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   "Set to 0 (write and flush once per second), 1 (write and flush at each commit) or 2 (write at commit, flush once per second).",
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   (gptr*) &srv_flush_log_at_trx_commit,
   (gptr*) &srv_flush_log_at_trx_commit,
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   0, GET_ULONG, OPT_ARG,  1, 0, 2, 0, 0, 0},
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  {"innodb_flush_method", OPT_INNODB_FLUSH_METHOD,
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   "With which method to flush data.", (gptr*) &innobase_unix_file_flush_method,
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   (gptr*) &innobase_unix_file_flush_method, 0, GET_STR, REQUIRED_ARG, 0, 0, 0,
   0, 0, 0},
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  {"innodb_locks_unsafe_for_binlog", OPT_INNODB_LOCKS_UNSAFE_FOR_BINLOG,
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   "Force InnoDB not to use next-key locking. Instead use only row-level locking",
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   (gptr*) &innobase_locks_unsafe_for_binlog,
   (gptr*) &innobase_locks_unsafe_for_binlog, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"innodb_log_arch_dir", OPT_INNODB_LOG_ARCH_DIR,
   "Where full logs should be archived.", (gptr*) &innobase_log_arch_dir,
   (gptr*) &innobase_log_arch_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"innodb_log_archive", OPT_INNODB_LOG_ARCHIVE,
   "Set to 1 if you want to have logs archived.", 0, 0, 0, GET_LONG, OPT_ARG,
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   0, 0, 0, 0, 0, 0},
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  {"innodb_log_group_home_dir", OPT_INNODB_LOG_GROUP_HOME_DIR,
   "Path to InnoDB log files.", (gptr*) &innobase_log_group_home_dir,
   (gptr*) &innobase_log_group_home_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0,
   0, 0},
  {"innodb_max_dirty_pages_pct", OPT_INNODB_MAX_DIRTY_PAGES_PCT,
   "Percentage of dirty pages allowed in bufferpool.", (gptr*) &srv_max_buf_pool_modified_pct,
   (gptr*) &srv_max_buf_pool_modified_pct, 0, GET_ULONG, REQUIRED_ARG, 90, 0, 100, 0, 0, 0},
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  {"innodb_max_purge_lag", OPT_INNODB_MAX_PURGE_LAG,
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   "Desired maximum length of the purge queue (0 = no limit)",
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   (gptr*) &srv_max_purge_lag,
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   (gptr*) &srv_max_purge_lag, 0, GET_ULONG, REQUIRED_ARG, 0, 0, ULONG_MAX,
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   0, 1L, 0},
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  {"innodb_rollback_on_timeout", OPT_INNODB_ROLLBACK_ON_TIMEOUT,
   "Roll back the complete transaction on lock wait timeout, for 4.x compatibility (disabled by default)",
   (gptr*) &innobase_rollback_on_timeout, (gptr*) &innobase_rollback_on_timeout,
   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"innodb_status_file", OPT_INNODB_STATUS_FILE,
   "Enable SHOW INNODB STATUS output in the innodb_status.<pid> file",
   (gptr*) &innobase_create_status_file, (gptr*) &innobase_create_status_file,
   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"innodb_support_xa", OPT_INNODB_SUPPORT_XA,
   "Enable InnoDB support for the XA two-phase commit",
   (gptr*) &global_system_variables.innodb_support_xa,
   (gptr*) &global_system_variables.innodb_support_xa,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"innodb_table_locks", OPT_INNODB_TABLE_LOCKS,
   "Enable InnoDB locking in LOCK TABLES",
   (gptr*) &global_system_variables.innodb_table_locks,
   (gptr*) &global_system_variables.innodb_table_locks,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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#endif /* End HAVE_INNOBASE_DB */
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  {"isam", OPT_ISAM, "Obsolete. ISAM storage engine is no longer supported.",
   (gptr*) &opt_isam, (gptr*) &opt_isam, 0, GET_BOOL, NO_ARG, 0, 0, 0,
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   0, 0, 0},
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   {"language", 'L',
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   "Client error messages in given language. May be given as a full path.",
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   (gptr*) &language_ptr, (gptr*) &language_ptr, 0, GET_STR, REQUIRED_ARG,
   0, 0, 0, 0, 0, 0},
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  {"lc-time-names", OPT_LC_TIME_NAMES,
   "Set the language used for the month names and the days of the week.",
   (gptr*) &lc_time_names_name,
   (gptr*) &lc_time_names_name,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
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  {"local-infile", OPT_LOCAL_INFILE,
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   "Enable/disable LOAD DATA LOCAL INFILE (takes values 1|0).",
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   (gptr*) &opt_local_infile,
   (gptr*) &opt_local_infile, 0, GET_BOOL, OPT_ARG,
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   1, 0, 0, 0, 0, 0},
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  {"log", 'l', "Log connections and queries to file.", (gptr*) &opt_logname,
   (gptr*) &opt_logname, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-bin", OPT_BIN_LOG,
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   "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.",
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   (gptr*) &opt_bin_logname, (gptr*) &opt_bin_logname, 0, GET_STR_ALLOC,
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   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-bin-index", OPT_BIN_LOG_INDEX,
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   "File that holds the names for last binary log files.",
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   (gptr*) &opt_binlog_index_name, (gptr*) &opt_binlog_index_name, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  /*
    This option starts with "log-bin" to emphasize that it is specific of
    binary logging.
  */
  {"log-bin-trust-function-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
   "If equal to 0 (the default), then when --log-bin is used, creation of "
   "a stored function is allowed only to users having the SUPER privilege and"
   " only if this function may not break binary logging.",
   (gptr*) &trust_function_creators, (gptr*) &trust_function_creators, 0,
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#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.",
   (gptr*) &trust_function_creators, (gptr*) &trust_function_creators, 0,
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
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  {"log-error", OPT_ERROR_LOG_FILE, "Error log file.",
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   (gptr*) &log_error_file_ptr, (gptr*) &log_error_file_ptr, 0, GET_STR,
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.",
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   (gptr*) &myisam_log_filename, (gptr*) &myisam_log_filename, 0, GET_STR,
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-long-format", '0',
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   "Log some extra information to update log. Please note that this option is deprecated; see --log-short-format option.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"log-queries-not-using-indexes", OPT_LOG_QUERIES_NOT_USING_INDEXES,
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   "Log queries that are executed without benefit of any index to the slow log if it is open.",
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   (gptr*) &opt_log_queries_not_using_indexes, (gptr*) &opt_log_queries_not_using_indexes,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-short-format", OPT_SHORT_LOG_FORMAT,
   "Don't log extra information to update and slow-query logs.",
   (gptr*) &opt_short_log_format, (gptr*) &opt_short_log_format,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-slave-updates", OPT_LOG_SLAVE_UPDATES,
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   "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.",
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   (gptr*) &opt_log_slave_updates, (gptr*) &opt_log_slave_updates, 0, GET_BOOL,
   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"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.",
   (gptr*) &opt_log_slow_admin_statements,
   (gptr*) &opt_log_slow_admin_statements,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-slow-queries", OPT_SLOW_QUERY_LOG,
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    "Log slow queries to this log file. Defaults logging to hostname-slow.log file. Must be enabled to activate other slow log options.",
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   (gptr*) &opt_slow_logname, (gptr*) &opt_slow_logname, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
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  {"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)",
   (gptr*) &opt_tc_log_file, (gptr*) &opt_tc_log_file, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#ifdef HAVE_MMAP
  {"log-tc-size", OPT_LOG_TC_SIZE, "Size of transaction coordinator log.",
   (gptr*) &opt_tc_log_size, (gptr*) &opt_tc_log_size, 0, GET_ULONG,
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   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, ULONG_MAX, 0,
   TC_LOG_PAGE_SIZE, 0},
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#endif
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  {"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.",
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   (gptr*) &opt_update_logname, (gptr*) &opt_update_logname, 0, GET_STR,
   OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"log-warnings", 'W', "Log some not critical warnings to the log file.",
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   (gptr*) &global_system_variables.log_warnings,
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   (gptr*) &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG, 1, 0, 0,
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   0, 0, 0},
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  {"low-priority-updates", OPT_LOW_PRIORITY_UPDATES,
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   "INSERT/DELETE/UPDATE has lower priority than selects.",
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   (gptr*) &global_system_variables.low_priority_updates,
   (gptr*) &max_system_variables.low_priority_updates,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"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.",
   (gptr*) &master_connect_retry, (gptr*) &master_connect_retry, 0, GET_UINT,
   REQUIRED_ARG, 60, 0, 0, 0, 0, 0},
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  {"master-host", OPT_MASTER_HOST,
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   "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.",
   (gptr*) &master_host, (gptr*) &master_host, 0, GET_STR, REQUIRED_ARG, 0, 0,
   0, 0, 0, 0},
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  {"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.",
   (gptr*) &master_info_file, (gptr*) &master_info_file, 0, GET_STR,
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"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.",
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   (gptr*)&master_password, (gptr*)&master_password, 0,
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"master-port", OPT_MASTER_PORT,
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   "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.",
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   (gptr*) &master_port, (gptr*) &master_port, 0, GET_UINT, REQUIRED_ARG,
   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.",
   (gptr*) &master_retry_count, (gptr*) &master_retry_count, 0, GET_ULONG,
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   REQUIRED_ARG, 3600*24, 0, 0, 0, 0, 0},
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  {"master-ssl", OPT_MASTER_SSL,
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   "Enable the slave to connect to the master using SSL.",
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   (gptr*) &master_ssl, (gptr*) &master_ssl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
   0, 0},
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  {"master-ssl-ca", OPT_MASTER_SSL_CA,
   "Master SSL CA file. Only applies if you have enabled master-ssl.",
   (gptr*) &master_ssl_ca, (gptr*) &master_ssl_ca, 0, GET_STR, OPT_ARG,
   0, 0, 0, 0, 0, 0},
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  {"master-ssl-capath", OPT_MASTER_SSL_CAPATH,
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   "Master SSL CA path. Only applies if you have enabled master-ssl.",
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   (gptr*) &master_ssl_capath, (gptr*) &master_ssl_capath, 0, GET_STR, OPT_ARG,
   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",
   (gptr*) &master_ssl_cert, (gptr*) &master_ssl_cert, 0, GET_STR, OPT_ARG,
   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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   (gptr*) &master_ssl_cipher, (gptr*) &master_ssl_capath, 0, GET_STR, OPT_ARG,
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   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.",
   (gptr*) &master_ssl_key, (gptr*) &master_ssl_key, 0, GET_STR, OPT_ARG,
   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.",
   (gptr*) &master_user, (gptr*) &master_user, 0, GET_STR, REQUIRED_ARG, 0, 0,
   0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
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  {"max-binlog-dump-events", OPT_MAX_BINLOG_DUMP_EVENTS,
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   "Option used by mysql-test for debugging and testing of replication.",
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   (gptr*) &max_binlog_dump_events, (gptr*) &max_binlog_dump_events, 0,
   GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#endif /* HAVE_REPLICATION */
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  {"memlock", OPT_MEMLOCK, "Lock mysqld in memory.", (gptr*) &locked_in_memory,
   (gptr*) &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"merge", OPT_MERGE, "Enable Merge storage engine. Disable with \
--skip-merge.",
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   (gptr*) &opt_merge, (gptr*) &opt_merge, 0, GET_BOOL, NO_ARG, 1, 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.",
   (gptr*) &myisam_recover_options_str, (gptr*) &myisam_recover_options_str, 0,
   GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
  {"ndbcluster", OPT_NDBCLUSTER, "Enable NDB Cluster (if this version of MySQL supports it). \
Disable with --skip-ndbcluster (will save memory).",
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   (gptr*) &opt_ndbcluster, (gptr*) &opt_ndbcluster, 0, GET_BOOL, NO_ARG,
   OPT_NDBCLUSTER_DEFAULT, 0, 0, 0, 0, 0},
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#ifdef HAVE_NDBCLUSTER_DB
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  {"ndb-connectstring", OPT_NDB_CONNECTSTRING,
   "Connect string for ndbcluster.",
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   (gptr*) &opt_ndb_connectstring,
   (gptr*) &opt_ndb_connectstring,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-mgmd-host", OPT_NDB_MGMD,
   "Set host and port for ndb_mgmd. Syntax: hostname[:port]",
   (gptr*) &opt_ndb_mgmd,
   (gptr*) &opt_ndb_mgmd,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"ndb-nodeid", OPT_NDB_NODEID,
   "Nodeid for this mysqlserver in the cluster.",
   (gptr*) &opt_ndb_nodeid,
   (gptr*) &opt_ndb_nodeid,
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-autoincrement-prefetch-sz", OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
   "Specify number of autoincrement values that are prefetched.",
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   (gptr*) &global_system_variables.ndb_autoincrement_prefetch_sz,
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   (gptr*) &max_system_variables.ndb_autoincrement_prefetch_sz,
   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.",
   (gptr*) &global_system_variables.ndb_force_send,
   (gptr*) &global_system_variables.ndb_force_send,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb_force_send", OPT_NDB_FORCE_SEND,
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   "same as --ndb-force-send.",
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   (gptr*) &global_system_variables.ndb_force_send,
   (gptr*) &global_system_variables.ndb_force_send,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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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.",
   (gptr*) &global_system_variables.ndb_use_exact_count,
   (gptr*) &global_system_variables.ndb_use_exact_count,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb_use_exact_count", OPT_NDB_USE_EXACT_COUNT,
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   "same as --ndb-use-exact-count.",
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   (gptr*) &global_system_variables.ndb_use_exact_count,
   (gptr*) &global_system_variables.ndb_use_exact_count,
   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",
   (gptr*) &global_system_variables.ndb_use_transactions,
   (gptr*) &global_system_variables.ndb_use_transactions,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
  {"ndb_use_transactions", OPT_NDB_USE_TRANSACTIONS,
   "same as --ndb-use-transactions.",
   (gptr*) &global_system_variables.ndb_use_transactions,
   (gptr*) &global_system_variables.ndb_use_transactions,
   0, GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},
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  {"ndb-shm", OPT_NDB_SHM,
   "Use shared memory connections when available.",
   (gptr*) &opt_ndb_shm,
   (gptr*) &opt_ndb_shm,
   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.",
   (gptr*) &opt_ndb_optimized_node_selection,
   (gptr*) &opt_ndb_optimized_node_selection,
   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.",
    (gptr*) &opt_ndb_cache_check_time, (gptr*) &opt_ndb_cache_check_time, 0, GET_ULONG, REQUIRED_ARG,
    0, 0, LONG_TIMEOUT, 0, 1, 0},
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#endif
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  {"new", 'n', "Use very new possible 'unsafe' functions.",
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   (gptr*) &global_system_variables.new_mode,
   (gptr*) &max_system_variables.new_mode,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifdef NOT_YET
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  {"no-mix-table-types", OPT_NO_MIX_TYPE, "Don't allow commands with uses two different table types.",
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   (gptr*) &opt_no_mix_types, (gptr*) &opt_no_mix_types, 0, GET_BOOL, NO_ARG,
   0, 0, 0, 0, 0, 0},
#endif
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  {"old-passwords", OPT_OLD_PASSWORDS, "Use old password encryption method (needed for 4.0 and older clients).",
   (gptr*) &global_system_variables.old_passwords,
   (gptr*) &max_system_variables.old_passwords, 0, GET_BOOL, NO_ARG,
   0, 0, 0, 0, 0, 0},
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#ifdef ONE_THREAD
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  {"one-thread", OPT_ONE_THREAD,
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   "Only use one thread (for debugging under Linux).", 0, 0, 0, GET_NO_ARG,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
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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)",
   (gptr*) &opt_old_style_user_limits, (gptr*) &opt_old_style_user_limits,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"pid-file", OPT_PID_FILE, "Pid file used by safe_mysqld.",
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   (gptr*) &pidfile_name_ptr, (gptr*) &pidfile_name_ptr, 0, GET_STR,
   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) ").",
   (gptr*) &mysqld_port,
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   (gptr*) &mysqld_port, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"port-open-timeout", OPT_PORT_OPEN_TIMEOUT,
   "Maximum time in seconds to wait for the port to become free. "
   "(Default: no wait)", (gptr*) &mysqld_port_timeout,
   (gptr*) &mysqld_port_timeout, 0, GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"relay-log", OPT_RELAY_LOG,
   "The location and name to use for relay logs.",
   (gptr*) &opt_relay_logname, (gptr*) &opt_relay_logname, 0,
   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.",
   (gptr*) &opt_relaylog_index_name, (gptr*) &opt_relaylog_index_name, 0,
   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.",
   (gptr*) &relay_log_info_file, (gptr*) &relay_log_info_file, 0, GET_STR,
   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,
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   "Updates to a database with a different name than the original. Example: replicate-rewrite-db=master_db_name->slave_db_name.",
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   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.",
   (gptr*) &replicate_same_server_id,
   (gptr*) &replicate_same_server_id,
   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},
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  // In replication, we may need to tell the other servers how to connect
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  {"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.",
   (gptr*) &report_host, (gptr*) &report_host, 0, GET_STR, REQUIRED_ARG, 0, 0,
   0, 0, 0, 0},
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  {"report-password", OPT_REPORT_PASSWORD, "Undocumented.",
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   (gptr*) &report_password, (gptr*) &report_password, 0, GET_STR,
   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.",
   (gptr*) &report_port, (gptr*) &report_port, 0, GET_UINT, REQUIRED_ARG,
   MYSQL_PORT, 0, 0, 0, 0, 0},
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  {"report-user", OPT_REPORT_USER, "Undocumented.", (gptr*) &report_user,
   (gptr*) &report_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"rpl-recovery-rank", OPT_RPL_RECOVERY_RANK, "Undocumented.",
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   (gptr*) &rpl_recovery_rank, (gptr*) &rpl_recovery_rank, 0, GET_ULONG,
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   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
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  {"safe-show-database", OPT_SAFE_SHOW_DB,
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   "Deprecated option; use GRANT SHOW DATABASES instead...",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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  {"safe-user-create", OPT_SAFE_USER_CREATE,
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   "Don't allow new user creation by the user who has no write privileges to the mysql.user table.",
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   (gptr*) &opt_safe_user_create, (gptr*) &opt_safe_user_create, 0, GET_BOOL,
   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},
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  {"secure-auth", OPT_SECURE_AUTH, "Disallow authentication for accounts that have old (pre-4.1) passwords.",
   (gptr*) &opt_secure_auth, (gptr*) &opt_secure_auth, 0, GET_BOOL, NO_ARG,
   my_bool(0), 0, 0, 0, 0, 0},
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  {"secure-file-priv", OPT_SECURE_FILE_PRIV,
   "Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within specified directory",
   (gptr*) &opt_secure_file_priv, (gptr*) &opt_secure_file_priv, 0,
   GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"server-id",	OPT_SERVER_ID,
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   "Uniquely identifies the server instance in the community of replication partners.",
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   (gptr*) &server_id, (gptr*) &server_id, 0, GET_ULONG, REQUIRED_ARG, 0, 0, 0,
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   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},
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#ifdef HAVE_SMEM
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  {"shared-memory", OPT_ENABLE_SHARED_MEMORY,
   "Enable the shared memory.",(gptr*) &opt_enable_shared_memory, (gptr*) &opt_enable_shared_memory,
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#endif
#ifdef HAVE_SMEM
  {"shared-memory-base-name",OPT_SHARED_MEMORY_BASE_NAME,
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   "Base name of shared memory.", (gptr*) &shared_memory_base_name, (gptr*) &shared_memory_base_name,
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   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,
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   "Show user and password in SHOW SLAVE HOSTS on this master",
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   (gptr*) &opt_show_slave_auth_info, (gptr*) &opt_show_slave_auth_info, 0,
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef DISABLE_GRANT_OPTIONS
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  {"skip-grant-tables", OPT_SKIP_GRANT,
   "Start without grant tables. This gives all users FULL ACCESS to all tables!",
   (gptr*) &opt_noacl, (gptr*) &opt_noacl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
   0},
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#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},
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  {"skip-locking", OPT_SKIP_LOCK,
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   "Deprecated option, use --skip-external-locking instead.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-name-resolve", OPT_SKIP_RESOLVE,
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   "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
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  {"skip-show-database", OPT_SKIP_SHOW_DB,
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   "Don't allow 'SHOW DATABASE' commands.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
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   0, 0, 0, 0},
  {"skip-slave-start", OPT_SKIP_SLAVE_START,
   "If set, slave is not autostarted.", (gptr*) &opt_skip_slave_start,
   (gptr*) &opt_skip_slave_start, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-stack-trace", OPT_SKIP_STACK_TRACE,
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   "Don't print a stack trace on failure.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
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   0, 0, 0, 0},
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  {"skip-symlink", OPT_SKIP_SYMLINKS, "Don't allow symlinking of tables. Deprecated option.  Use --skip-symbolic-links instead.",
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   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"skip-thread-priority", OPT_SKIP_PRIOR,
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   "Don't give threads different priorities.", 0, 0, 0, GET_NO_ARG, NO_ARG,
   DEFAULT_SKIP_THREAD_PRIORITY, 0, 0, 0, 0, 0},
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#ifdef HAVE_REPLICATION
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  {"slave-load-tmpdir", OPT_SLAVE_LOAD_TMPDIR,
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   "The location where the slave should put its temporary files when \
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replicating a LOAD DATA INFILE command.",
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   (gptr*) &slave_load_tmpdir, (gptr*) &slave_load_tmpdir, 0, GET_STR_ALLOC,
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   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"slave-skip-errors", OPT_SLAVE_SKIP_ERRORS,
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   "Tells the slave thread to continue replication when a query returns an error from the provided list.",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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  {"socket", OPT_SOCKET, "Socket file to use for connection.",
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   (gptr*) &mysqld_unix_port, (gptr*) &mysqld_unix_port, 0, GET_STR,
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   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.",
   (gptr*) &opt_sporadic_binlog_dump_fail,
   (gptr*) &opt_sporadic_binlog_dump_fail, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
   0},
#endif /* HAVE_REPLICATION */
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  {"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.",
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   0, 0, 0, GET_DISABLED, NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"sql-mode", OPT_SQL_MODE,
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   "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.",
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   (gptr*) &sql_mode_str, (gptr*) &sql_mode_str, 0, GET_STR, REQUIRED_ARG, 0,
   0, 0, 0, 0, 0},
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#ifdef HAVE_OPENSSL
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#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.",
   (gptr*) &my_use_symdir, (gptr*) &my_use_symdir, 0, GET_BOOL, NO_ARG,
   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.",
   (gptr*) &global_system_variables.sysdate_is_now,
   0, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
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  {"tc-heuristic-recover", OPT_TC_HEURISTIC_RECOVER,
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   "Decision to use in heuristic recover process. Possible values are COMMIT or ROLLBACK.",
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   (gptr*) &opt_tc_heuristic_recover, (gptr*) &opt_tc_heuristic_recover,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"temp-pool", OPT_TEMP_POOL,
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   "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.",
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   (gptr*) &use_temp_pool, (gptr*) &use_temp_pool, 0, GET_BOOL, NO_ARG, 1,
   0, 0, 0, 0, 0},
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  {"timed_mutexes", OPT_TIMED_MUTEXES,
   "Specify whether to time mutexes (only InnoDB mutexes are currently supported)",
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   (gptr*) &timed_mutexes, (gptr*) &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 "
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#if defined(__WIN__) || defined(OS2) || defined(__NETWARE__)
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   "semicolon (;)"
#else
   "colon (:)"
#endif
   ", in this case they are used in a round-robin fashion.",
   (gptr*) &opt_mysql_tmpdir,
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   (gptr*) &opt_mysql_tmpdir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"transaction-isolation", OPT_TX_ISOLATION,
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   "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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  {"use-symbolic-links", 's', "Enable symbolic link support. Deprecated option; use --symbolic-links instead.",
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   (gptr*) &my_use_symdir, (gptr*) &my_use_symdir, 0, GET_BOOL, NO_ARG,
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   /*
     The system call realpath() produces warnings under valgrind and
     purify. These are not suppressed: instead we disable symlinks
     option if compiled with valgrind support. 
   */
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   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
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  {"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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  {"verbose", 'v', "Used with --help option for detailed help",
   (gptr*) &opt_verbose, (gptr*) &opt_verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
   0, 0},
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  {"version", 'V', "Output version information and exit.", 0, 0, 0, GET_NO_ARG,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"warnings", 'W', "Deprecated; use --log-warnings instead.",
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   (gptr*) &global_system_variables.log_warnings,
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   (gptr*) &max_system_variables.log_warnings, 0, GET_ULONG, OPT_ARG,
   1, 0, ULONG_MAX, 0, 0, 0},
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  { "back_log", OPT_BACK_LOG,
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    "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.",
    (gptr*) &back_log, (gptr*) &back_log, 0, GET_ULONG,
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    REQUIRED_ARG, 50, 1, 65535, 0, 1, 0 },
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#ifdef HAVE_BERKELEY_DB
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  { "bdb_cache_size", OPT_BDB_CACHE_SIZE,
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    "The buffer that is allocated to cache index and rows for BDB tables.",
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    (gptr*) &berkeley_cache_size, (gptr*) &berkeley_cache_size, 0, GET_ULONG,
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    REQUIRED_ARG, KEY_CACHE_SIZE, 20*1024, ULONG_MAX, 0, IO_SIZE, 0},
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  /* QQ: The following should be removed soon! (bdb_max_lock preferred) */
  {"bdb_lock_max", OPT_BDB_MAX_LOCK, "Synonym for bdb_max_lock.",
   (gptr*) &berkeley_max_lock, (gptr*) &berkeley_max_lock, 0, GET_ULONG,
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   REQUIRED_ARG, 10000, 0, ULONG_MAX, 0, 1, 0},
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  {"bdb_log_buffer_size", OPT_BDB_LOG_BUFFER_SIZE,
   "The buffer that is allocated to cache index and rows for BDB tables.",
   (gptr*) &berkeley_log_buffer_size, (gptr*) &berkeley_log_buffer_size, 0,
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   GET_ULONG, REQUIRED_ARG, 256*1024L, 256*1024L, ULONG_MAX, 0, 1024, 0},
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  {"bdb_max_lock", OPT_BDB_MAX_LOCK,
   "The maximum number of locks you can have active on a BDB table.",
   (gptr*) &berkeley_max_lock, (gptr*) &berkeley_max_lock, 0, GET_ULONG,
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   REQUIRED_ARG, 10000, 0, ULONG_MAX, 0, 1, 0},
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#endif /* HAVE_BERKELEY_DB */
  {"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.",
   (gptr*) &binlog_cache_size, (gptr*) &binlog_cache_size, 0, GET_ULONG,
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   REQUIRED_ARG, 32*1024L, IO_SIZE, ULONG_MAX, 0, IO_SIZE, 0},
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  {"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!",
   (gptr*) &global_system_variables.bulk_insert_buff_size,
   (gptr*) &max_system_variables.bulk_insert_buff_size,
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   0, GET_ULONG, REQUIRED_ARG, 8192*1024, 0, ULONG_MAX, 0, 1, 0},
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  {"connect_timeout", OPT_CONNECT_TIMEOUT,
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   "The number of seconds the mysqld server is waiting for a connect packet before responding with 'Bad handshake'.",
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    (gptr*) &connect_timeout, (gptr*) &connect_timeout,
   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).",
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATE],
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATE],
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  { "datetime_format", OPT_DATETIME_FORMAT,
    "The DATETIME/TIMESTAMP format (for future).",
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME],
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_DATETIME],
    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.",
    (gptr*) &global_system_variables.default_week_format,
    (gptr*) &max_system_variables.default_week_format,
    0, GET_ULONG, REQUIRED_ARG, 0, 0, 7L, 0, 1, 0},
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  {"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.",
    (gptr*) &delayed_insert_limit, (gptr*) &delayed_insert_limit, 0, GET_ULONG,
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    REQUIRED_ARG, DELAYED_LIMIT, 1, ULONG_MAX, 0, 1, 0},
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  {"delayed_insert_timeout", OPT_DELAYED_INSERT_TIMEOUT,
   "How long a INSERT DELAYED thread should wait for INSERT statements before terminating.",
   (gptr*) &delayed_insert_timeout, (gptr*) &delayed_insert_timeout, 0,
   GET_ULONG, REQUIRED_ARG, DELAYED_WAIT_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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  { "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.",
    (gptr*) &delayed_queue_size, (gptr*) &delayed_queue_size, 0, GET_ULONG,
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    REQUIRED_ARG, DELAYED_QUEUE_SIZE, 1, ULONG_MAX, 0, 1, 0},
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  {"div_precision_increment", OPT_DIV_PRECINCREMENT,
   "Precision of the result of '/' operator will be increased on that value.",
   (gptr*) &global_system_variables.div_precincrement,
   (gptr*) &max_system_variables.div_precincrement, 0, GET_ULONG,
   REQUIRED_ARG, 4, 0, DECIMAL_MAX_SCALE, 0, 0, 0},
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  {"expire_logs_days", OPT_EXPIRE_LOGS_DAYS,
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   "If non-zero, binary logs will be purged after expire_logs_days "
   "days; possible purges happen at startup and at binary log rotation.",
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   (gptr*) &expire_logs_days,
   (gptr*) &expire_logs_days, 0, GET_ULONG,
   REQUIRED_ARG, 0, 0, 99, 0, 1, 0},
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  { "flush_time", OPT_FLUSH_TIME,
    "A dedicated thread is created to flush all tables at the given interval.",
    (gptr*) &flush_time, (gptr*) &flush_time, 0, GET_ULONG, REQUIRED_ARG,
    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},
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  { "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.",
    (gptr*) &ft_max_word_len, (gptr*) &ft_max_word_len, 0, GET_ULONG,
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    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.",
    (gptr*) &ft_min_word_len, (gptr*) &ft_min_word_len, 0, GET_ULONG,
    REQUIRED_ARG, 4, 1, HA_FT_MAXCHARLEN, 0, 1, 0},
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  { "ft_query_expansion_limit", OPT_FT_QUERY_EXPANSION_LIMIT,
    "Number of best matches to use for query expansion",
    (gptr*) &ft_query_expansion_limit, (gptr*) &ft_query_expansion_limit, 0, GET_ULONG,
    REQUIRED_ARG, 20, 0, 1000, 0, 1, 0},
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  { "ft_stopword_file", OPT_FT_STOPWORD_FILE,
    "Use stopwords from this file instead of built-in list.",
    (gptr*) &ft_stopword_file, (gptr*) &ft_stopword_file, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  { "group_concat_max_len", OPT_GROUP_CONCAT_MAX_LEN,
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    "The maximum length of the result of function group_concat.",
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    (gptr*) &global_system_variables.group_concat_max_len,
    (gptr*) &max_system_variables.group_concat_max_len, 0, GET_ULONG,
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    REQUIRED_ARG, 1024, 4, ULONG_MAX, 0, 1, 0},
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#ifdef HAVE_INNOBASE_DB
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  {"innodb_additional_mem_pool_size", OPT_INNODB_ADDITIONAL_MEM_POOL_SIZE,
   "Size of a memory pool InnoDB uses to store data dictionary information and other internal data structures.",
   (gptr*) &innobase_additional_mem_pool_size,
   (gptr*) &innobase_additional_mem_pool_size, 0, GET_LONG, REQUIRED_ARG,
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   1*1024*1024L, 512*1024L, LONG_MAX, 0, 1024, 0},
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  {"innodb_autoextend_increment", OPT_INNODB_AUTOEXTEND_INCREMENT,
   "Data file autoextend increment in megabytes",
   (gptr*) &srv_auto_extend_increment,
   (gptr*) &srv_auto_extend_increment,
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   0, GET_ULONG, REQUIRED_ARG, 8L, 1L, 1000L, 0, 1L, 0},
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  {"innodb_buffer_pool_awe_mem_mb", OPT_INNODB_BUFFER_POOL_AWE_MEM_MB,
   "If Windows AWE is used, the size of InnoDB buffer pool allocated from the AWE memory.",
   (gptr*) &innobase_buffer_pool_awe_mem_mb, (gptr*) &innobase_buffer_pool_awe_mem_mb, 0,
   GET_LONG, REQUIRED_ARG, 0, 0, 63000, 0, 1, 0},
  {"innodb_buffer_pool_size", OPT_INNODB_BUFFER_POOL_SIZE,
   "The size of the memory buffer InnoDB uses to cache data and indexes of its tables.",
   (gptr*) &innobase_buffer_pool_size, (gptr*) &innobase_buffer_pool_size, 0,
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   GET_LL, REQUIRED_ARG, 8*1024*1024L, 1024*1024L, LONGLONG_MAX, 0,
   1024*1024L, 0},
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  {"innodb_commit_concurrency", OPT_INNODB_COMMIT_CONCURRENCY,
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   "Helps in performance tuning in heavily concurrent environments.",
   (gptr*) &srv_commit_concurrency, (gptr*) &srv_commit_concurrency,
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   0, GET_ULONG, REQUIRED_ARG, 0, 0, 1000, 0, 1, 0},
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  {"innodb_concurrency_tickets", OPT_INNODB_CONCURRENCY_TICKETS,
   "Number of times a thread is allowed to enter InnoDB within the same \
    SQL query after it has once got the ticket",
   (gptr*) &srv_n_free_tickets_to_enter,
   (gptr*) &srv_n_free_tickets_to_enter,
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   0, GET_ULONG, REQUIRED_ARG, 500L, 1L, ULONG_MAX, 0, 1L, 0},
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  {"innodb_file_io_threads", OPT_INNODB_FILE_IO_THREADS,
   "Number of file I/O threads in InnoDB.", (gptr*) &innobase_file_io_threads,
   (gptr*) &innobase_file_io_threads, 0, GET_LONG, REQUIRED_ARG, 4, 4, 64, 0,
   1, 0},
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  {"innodb_force_recovery", OPT_INNODB_FORCE_RECOVERY,
   "Helps to save your data in case the disk image of the database becomes corrupt.",
   (gptr*) &innobase_force_recovery, (gptr*) &innobase_force_recovery, 0,
   GET_LONG, REQUIRED_ARG, 0, 0, 6, 0, 1, 0},
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  {"innodb_lock_wait_timeout", OPT_INNODB_LOCK_WAIT_TIMEOUT,
   "Timeout in seconds an InnoDB transaction may wait for a lock before being rolled back.",
   (gptr*) &innobase_lock_wait_timeout, (gptr*) &innobase_lock_wait_timeout,
   0, GET_LONG, REQUIRED_ARG, 50, 1, 1024 * 1024 * 1024, 0, 1, 0},
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  {"innodb_log_buffer_size", OPT_INNODB_LOG_BUFFER_SIZE,
   "The size of the buffer which InnoDB uses to write log to the log files on disk.",
   (gptr*) &innobase_log_buffer_size, (gptr*) &innobase_log_buffer_size, 0,
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   GET_LONG, REQUIRED_ARG, 1024*1024L, 256*1024L, LONG_MAX, 0, 1024, 0},
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  {"innodb_log_file_size", OPT_INNODB_LOG_FILE_SIZE,
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   "Size of each log file in a log group.",
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   (gptr*) &innobase_log_file_size, (gptr*) &innobase_log_file_size, 0,
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   GET_LL, REQUIRED_ARG, 5*1024*1024L, 1*1024*1024L, LONGLONG_MAX, 0,
   1024*1024L, 0},
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  {"innodb_log_files_in_group", OPT_INNODB_LOG_FILES_IN_GROUP,
   "Number of log files in the log group. InnoDB writes to the files in a circular fashion. Value 3 is recommended here.",
   (gptr*) &innobase_log_files_in_group, (gptr*) &innobase_log_files_in_group,
   0, GET_LONG, REQUIRED_ARG, 2, 2, 100, 0, 1, 0},
  {"innodb_mirrored_log_groups", OPT_INNODB_MIRRORED_LOG_GROUPS,
   "Number of identical copies of log groups we keep for the database. Currently this should be set to 1.",
   (gptr*) &innobase_mirrored_log_groups,
   (gptr*) &innobase_mirrored_log_groups, 0, GET_LONG, REQUIRED_ARG, 1, 1, 10,
   0, 1, 0},
  {"innodb_open_files", OPT_INNODB_OPEN_FILES,
   "How many files at the maximum InnoDB keeps open at the same time.",
   (gptr*) &innobase_open_files, (gptr*) &innobase_open_files, 0,
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   GET_LONG, REQUIRED_ARG, 300L, 10L, LONG_MAX, 0, 1L, 0},
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  {"innodb_sync_spin_loops", OPT_INNODB_SYNC_SPIN_LOOPS,
   "Count of spin-loop rounds in InnoDB mutexes",
   (gptr*) &srv_n_spin_wait_rounds,
   (gptr*) &srv_n_spin_wait_rounds,
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   0, GET_ULONG, REQUIRED_ARG, 20L, 0L, ULONG_MAX, 0, 1L, 0},
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  {"innodb_thread_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
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   "Helps in performance tuning in heavily concurrent environments. "
   "Sets the maximum number of threads allowed inside InnoDB. Value 0"
   " will disable the thread throttling.",
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   (gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency,
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   0, GET_ULONG, REQUIRED_ARG, 8, 0, 1000, 0, 1, 0},
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  {"innodb_thread_sleep_delay", OPT_INNODB_THREAD_SLEEP_DELAY,
   "Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0"
    " disable a sleep",
   (gptr*) &srv_thread_sleep_delay,
   (gptr*) &srv_thread_sleep_delay,
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   0, GET_ULONG, REQUIRED_ARG, 10000L, 0L, ULONG_MAX, 0, 1L, 0},
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#endif /* HAVE_INNOBASE_DB */
  {"interactive_timeout", OPT_INTERACTIVE_TIMEOUT,
   "The number of seconds the server waits for activity on an interactive connection before closing it.",
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   (gptr*) &global_system_variables.net_interactive_timeout,
   (gptr*) &max_system_variables.net_interactive_timeout, 0,
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   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.",
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   (gptr*) &global_system_variables.join_buff_size,
   (gptr*) &max_system_variables.join_buff_size, 0, GET_ULONG,
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   REQUIRED_ARG, 128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, UINT_MAX32, MALLOC_OVERHEAD,
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   IO_SIZE, 0},
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  {"keep_files_on_create", OPT_KEEP_FILES_ON_CREATE,
   "Don't overwrite stale .MYD and .MYI even if no directory is specified.",
   (gptr*) &global_system_variables.keep_files_on_create,
   (gptr*) &max_system_variables.keep_files_on_create,
   0, GET_BOOL, OPT_ARG, 0, 0, 0, 0, 0, 0},
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  {"key_buffer_size", OPT_KEY_BUFFER_SIZE,
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   "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.",
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   (gptr*) &dflt_key_cache_var.param_buff_size,
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   (gptr*) 0,
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   0, (GET_ULL | GET_ASK_ADDR),
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   REQUIRED_ARG, KEY_CACHE_SIZE, MALLOC_OVERHEAD, ~(ulong) 0, MALLOC_OVERHEAD,
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   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",
   (gptr*) &dflt_key_cache_var.param_age_threshold,
   (gptr*) 0,
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   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG,
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   300, 100, ULONG_MAX, 0, 100, 0},
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  {"key_cache_block_size", OPT_KEY_CACHE_BLOCK_SIZE,
   "The default size of key cache blocks",
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   (gptr*) &dflt_key_cache_var.param_block_size,
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   (gptr*) 0,
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   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG,
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   KEY_CACHE_BLOCK_SIZE, 512, 1024 * 16, 0, 512, 0},
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  {"key_cache_division_limit", OPT_KEY_CACHE_DIVISION_LIMIT,
   "The minimum percentage of warm blocks in key cache",
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   (gptr*) &dflt_key_cache_var.param_division_limit,
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   (gptr*) 0,
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   0, (GET_ULONG | GET_ASK_ADDR) , REQUIRED_ARG, 100,
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   1, 100, 0, 1, 0},
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  {"long_query_time", OPT_LONG_QUERY_TIME,
   "Log all queries that have taken more than long_query_time seconds to execute to file.",
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   (gptr*) &global_system_variables.long_query_time,
   (gptr*) &max_system_variables.long_query_time, 0, GET_ULONG,
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   REQUIRED_ARG, 10, 1, LONG_TIMEOUT, 0, 1, 0},
  {"lower_case_table_names", OPT_LOWER_CASE_TABLE_NAMES,
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   "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",
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   (gptr*) &lower_case_table_names,
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   (gptr*) &lower_case_table_names, 0, GET_UINT, OPT_ARG,
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#ifdef FN_NO_CASE_SENCE
    1
#else
    0
#endif
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   , 0, 2, 0, 1, 0},
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  {"max_allowed_packet", OPT_MAX_ALLOWED_PACKET,
   "Max packetlength to send/receive from to server.",
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   (gptr*) &global_system_variables.max_allowed_packet,
   (gptr*) &max_system_variables.max_allowed_packet, 0, GET_ULONG,
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   REQUIRED_ARG, 1024*1024L, 1024, 1024L*1024L*1024L, MALLOC_OVERHEAD, 1024, 0},
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  {"max_binlog_cache_size", OPT_MAX_BINLOG_CACHE_SIZE,
   "Can be used to restrict the total size used to cache a multi-transaction query.",
   (gptr*) &max_binlog_cache_size, (gptr*) &max_binlog_cache_size, 0,
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   GET_ULONG, REQUIRED_ARG, ULONG_MAX, IO_SIZE, ULONG_MAX, 0, IO_SIZE, 0},
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  {"max_binlog_size", OPT_MAX_BINLOG_SIZE,
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   "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.",
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   (gptr*) &max_binlog_size, (gptr*) &max_binlog_size, 0, GET_ULONG,
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   REQUIRED_ARG, 1024*1024L*1024L, IO_SIZE, 1024*1024L*1024L, 0, IO_SIZE, 0},
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  {"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.",
   (gptr*) &max_connect_errors, (gptr*) &max_connect_errors, 0, GET_ULONG,
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    REQUIRED_ARG, MAX_CONNECT_ERRORS, 1, ULONG_MAX, 0, 1, 0},
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  {"max_connections", OPT_MAX_CONNECTIONS,
   "The number of simultaneous clients allowed.", (gptr*) &max_connections,
   (gptr*) &max_connections, 0, GET_ULONG, REQUIRED_ARG, 100, 1, 16384, 0, 1,
   0},
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  {"max_delayed_threads", OPT_MAX_DELAYED_THREADS,
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   "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.",
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   (gptr*) &global_system_variables.max_insert_delayed_threads,
   (gptr*) &max_system_variables.max_insert_delayed_threads,
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   0, GET_ULONG, REQUIRED_ARG, 20, 0, 16384, 0, 1, 0},
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  {"max_error_count", OPT_MAX_ERROR_COUNT,
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   "Max number of errors/warnings to store for a statement.",
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   (gptr*) &global_system_variables.max_error_count,
   (gptr*) &max_system_variables.max_error_count,
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   0, GET_ULONG, REQUIRED_ARG, DEFAULT_ERROR_COUNT, 0, 65535, 0, 1, 0},
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  {"max_heap_table_size", OPT_MAX_HEP_TABLE_SIZE,
   "Don't allow creation of heap tables bigger than this.",
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   (gptr*) &global_system_variables.max_heap_table_size,
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   (gptr*) &max_system_variables.max_heap_table_size, 0, GET_ULL,
   REQUIRED_ARG, 16*1024*1024L, 16384, MAX_MEM_TABLE_SIZE,
   MALLOC_OVERHEAD, 1024, 0},
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  {"max_join_size", OPT_MAX_JOIN_SIZE,
   "Joins that are probably going to read more than max_join_size records return an error.",
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   (gptr*) &global_system_variables.max_join_size,
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   (gptr*) &max_system_variables.max_join_size, 0, GET_HA_ROWS, REQUIRED_ARG,
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   ~0L, 1, ~0L, 0, 1, 0},
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   {"max_length_for_sort_data", OPT_MAX_LENGTH_FOR_SORT_DATA,
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    "Max number of bytes in sorted records.",
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    (gptr*) &global_system_variables.max_length_for_sort_data,
    (gptr*) &max_system_variables.max_length_for_sort_data, 0, GET_ULONG,
    REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0},
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  {"max_prepared_stmt_count", OPT_MAX_PREPARED_STMT_COUNT,
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   "Maximum number of prepared statements in the server.",
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   (gptr*) &max_prepared_stmt_count, (gptr*) &max_prepared_stmt_count,
   0, GET_ULONG, REQUIRED_ARG, 16382, 0, 1*1024*1024, 0, 1, 0},
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  {"max_relay_log_size", OPT_MAX_RELAY_LOG_SIZE,
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   "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.",
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   (gptr*) &max_relay_log_size, (gptr*) &max_relay_log_size, 0, GET_ULONG,
   REQUIRED_ARG, 0L, 0L, 1024*1024L*1024L, 0, IO_SIZE, 0},
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  { "max_seeks_for_key", OPT_MAX_SEEKS_FOR_KEY,
    "Limit assumed max number of seeks when looking up rows based on a key",
    (gptr*) &global_system_variables.max_seeks_for_key,
    (gptr*) &max_system_variables.max_seeks_for_key, 0, GET_ULONG,
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    REQUIRED_ARG, ULONG_MAX, 1, ULONG_MAX, 0, 1, 0 },
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  {"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).",
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   (gptr*) &global_system_variables.max_sort_length,
   (gptr*) &max_system_variables.max_sort_length, 0, GET_ULONG,
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   REQUIRED_ARG, 1024, 4, 8192*1024L, 0, 1, 0},
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  {"max_sp_recursion_depth", OPT_MAX_SP_RECURSION_DEPTH,
   "Maximum stored procedure recursion depth. (discussed with docs).",
   (gptr*) &global_system_variables.max_sp_recursion_depth,
   (gptr*) &max_system_variables.max_sp_recursion_depth, 0, GET_ULONG,
   OPT_ARG, 0, 0, 255, 0, 1, 0 },
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  {"max_tmp_tables", OPT_MAX_TMP_TABLES,
   "Maximum number of temporary tables a client can keep open at a time.",
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   (gptr*) &global_system_variables.max_tmp_tables,
   (gptr*) &max_system_variables.max_tmp_tables, 0, GET_ULONG,
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   REQUIRED_ARG, 32, 1, ULONG_MAX, 0, 1, 0},
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  {"max_user_connections", OPT_MAX_USER_CONNECTIONS,
   "The maximum number of active connections for a single user (0 = no limit).",
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   (gptr*) &max_user_connections, (gptr*) &max_user_connections, 0, GET_UINT,
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   REQUIRED_ARG, 0, 0, (uint) ~0, 0, 1, 0},
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  {"max_write_lock_count", OPT_MAX_WRITE_LOCK_COUNT,
   "After this many write locks, allow some read locks to run in between.",
   (gptr*) &max_write_lock_count, (gptr*) &max_write_lock_count, 0, GET_ULONG,
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   REQUIRED_ARG, ULONG_MAX, 1, ULONG_MAX, 0, 1, 0},
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  {"multi_range_count", OPT_MULTI_RANGE_COUNT,
   "Number of key ranges to request at once.",
   (gptr*) &global_system_variables.multi_range_count,
   (gptr*) &max_system_variables.multi_range_count, 0,
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   GET_ULONG, REQUIRED_ARG, 256, 1, ULONG_MAX, 0, 1, 0},
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  {"myisam_block_size", OPT_MYISAM_BLOCK_SIZE,
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   "Block size to be used for MyISAM index pages.",
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   (gptr*) &opt_myisam_block_size,
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   (gptr*) &opt_myisam_block_size, 0, GET_ULONG, REQUIRED_ARG,
   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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  {"myisam_data_pointer_size", OPT_MYISAM_DATA_POINTER_SIZE,
   "Default pointer size to be used for MyISAM tables.",
   (gptr*) &myisam_data_pointer_size,
   (gptr*) &myisam_data_pointer_size, 0, GET_ULONG, REQUIRED_ARG,
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   6, 2, 7, 0, 1, 0},
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  {"myisam_max_extra_sort_file_size", OPT_MYISAM_MAX_EXTRA_SORT_FILE_SIZE,
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   "Deprecated option",
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   (gptr*) &global_system_variables.myisam_max_extra_sort_file_size,
   (gptr*) &max_system_variables.myisam_max_extra_sort_file_size,
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   0, GET_ULL, REQUIRED_ARG, (ulonglong) MI_MAX_TEMP_LENGTH,
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   0, (ulonglong) MAX_FILE_SIZE, 0, 1, 0},
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  {"myisam_max_sort_file_size", OPT_MYISAM_MAX_SORT_FILE_SIZE,
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   "Don't use the fast sort index method to created index if the temporary file would get bigger than this.",
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   (gptr*) &global_system_variables.myisam_max_sort_file_size,
   (gptr*) &max_system_variables.myisam_max_sort_file_size, 0,
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   GET_ULL, REQUIRED_ARG, (longlong) LONG_MAX, 0, (ulonglong) MAX_FILE_SIZE,
   0, 1024*1024, 0},
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  {"myisam_repair_threads", OPT_MYISAM_REPAIR_THREADS,
   "Number of threads to use when repairing MyISAM tables. The value of 1 disables parallel repair.",
   (gptr*) &global_system_variables.myisam_repair_threads,
   (gptr*) &max_system_variables.myisam_repair_threads, 0,
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   GET_ULONG, REQUIRED_ARG, 1, 1, ULONG_MAX, 0, 1, 0},
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  {"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.",
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   (gptr*) &global_system_variables.myisam_sort_buff_size,
   (gptr*) &max_system_variables.myisam_sort_buff_size, 0,
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   GET_ULONG, REQUIRED_ARG, 8192*1024, 4, UINT_MAX32, 0, 1, 0},
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  {"myisam_stats_method", OPT_MYISAM_STATS_METHOD,
   "Specifies how MyISAM index statistics collection code should threat NULLs. "
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   "Possible values of name are \"nulls_unequal\" (default behavior for 4.1/5.0), "
   "\"nulls_equal\" (emulate 4.0 behavior), and \"nulls_ignored\".",
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   (gptr*) &myisam_stats_method_str, (gptr*) &myisam_stats_method_str, 0,
    GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"net_buffer_length", OPT_NET_BUFFER_LENGTH,
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   "Buffer length for TCP/IP and socket communication.",
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   (gptr*) &global_system_variables.net_buffer_length,
   (gptr*) &max_system_variables.net_buffer_length, 0, GET_ULONG,
   REQUIRED_ARG, 16384, 1024, 1024*1024L, 0, 1024, 0},
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  {"net_read_timeout", OPT_NET_READ_TIMEOUT,
   "Number of seconds to wait for more data from a connection before aborting the read.",
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   (gptr*) &global_system_variables.net_read_timeout,
   (gptr*) &max_system_variables.net_read_timeout, 0, GET_ULONG,
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   REQUIRED_ARG, NET_READ_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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  {"net_retry_count", OPT_NET_RETRY_COUNT,
   "If a read on a communication port is interrupted, retry this many times before giving up.",
   (gptr*) &global_system_variables.net_retry_count,
   (gptr*) &max_system_variables.net_retry_count,0,
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   GET_ULONG, REQUIRED_ARG, MYSQLD_NET_RETRY_COUNT, 1, ULONG_MAX, 0, 1, 0},
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  {"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.",
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   (gptr*) &global_system_variables.net_write_timeout,
   (gptr*) &max_system_variables.net_write_timeout, 0, GET_ULONG,
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   REQUIRED_ARG, NET_WRITE_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
  {"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.",
   (gptr*) &open_files_limit, (gptr*) &open_files_limit, 0, GET_ULONG,
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   REQUIRED_ARG, 0, 0, OS_FILE_LIMIT, 0, 1, 0},
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  {"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.",
   (gptr*) &global_system_variables.optimizer_prune_level,
   (gptr*) &max_system_variables.optimizer_prune_level,
   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).",
   (gptr*) &global_system_variables.optimizer_search_depth,
   (gptr*) &max_system_variables.optimizer_search_depth,
   0, GET_ULONG, OPT_ARG, MAX_TABLES+1, 0, MAX_TABLES+2, 0, 1, 0},
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  {"plugin_dir", OPT_PLUGIN_DIR,
   "Directory for plugins.",
   (gptr*) &opt_plugin_dir_ptr, (gptr*) &opt_plugin_dir_ptr, 0,
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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   {"preload_buffer_size", OPT_PRELOAD_BUFFER_SIZE,
    "The size of the buffer that is allocated when preloading indexes",
    (gptr*) &global_system_variables.preload_buff_size,
    (gptr*) &max_system_variables.preload_buff_size, 0, GET_ULONG,
    REQUIRED_ARG, 32*1024L, 1024, 1024*1024*1024L, 0, 1, 0},
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  {"query_alloc_block_size", OPT_QUERY_ALLOC_BLOCK_SIZE,
   "Allocation block size for query parsing and execution",
   (gptr*) &global_system_variables.query_alloc_block_size,
   (gptr*) &max_system_variables.query_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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#ifdef HAVE_QUERY_CACHE
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  {"query_cache_limit", OPT_QUERY_CACHE_LIMIT,
   "Don't cache results that are bigger than this.",
   (gptr*) &query_cache_limit, (gptr*) &query_cache_limit, 0, GET_ULONG,
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   REQUIRED_ARG, 1024*1024L, 0, (longlong) ULONG_MAX, 0, 1, 0},
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  {"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.",
   (gptr*) &query_cache_min_res_unit, (gptr*) &query_cache_min_res_unit,
   0, GET_ULONG, REQUIRED_ARG, QUERY_CACHE_MIN_RESULT_DATA_SIZE,
   0, (longlong) ULONG_MAX, 0, 1, 0},
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#endif /*HAVE_QUERY_CACHE*/
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  {"query_cache_size", OPT_QUERY_CACHE_SIZE,
   "The memory allocated to store results from old queries.",
   (gptr*) &query_cache_size, (gptr*) &query_cache_size, 0, GET_ULONG,
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   REQUIRED_ARG, 0, 0, (longlong) ULONG_MAX, 0, 1024, 0},
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#ifdef HAVE_QUERY_CACHE
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  {"query_cache_type", OPT_QUERY_CACHE_TYPE,
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   "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.",
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   (gptr*) &global_system_variables.query_cache_type,
   (gptr*) &max_system_variables.query_cache_type,
   0, GET_ULONG, REQUIRED_ARG, 1, 0, 2, 0, 1, 0},
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  {"query_cache_wlock_invalidate", OPT_QUERY_CACHE_WLOCK_INVALIDATE,
   "Invalidate queries in query cache on LOCK for write",
   (gptr*) &global_system_variables.query_cache_wlock_invalidate,
   (gptr*) &max_system_variables.query_cache_wlock_invalidate,
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
#endif /*HAVE_QUERY_CACHE*/
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  {"query_prealloc_size", OPT_QUERY_PREALLOC_SIZE,
   "Persistent buffer for query parsing and execution",
   (gptr*) &global_system_variables.query_prealloc_size,
   (gptr*) &max_system_variables.query_prealloc_size, 0, GET_ULONG,
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   REQUIRED_ARG, QUERY_ALLOC_PREALLOC_SIZE, QUERY_ALLOC_PREALLOC_SIZE,
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   ULONG_MAX, 0, 1024, 0},
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  {"range_alloc_block_size", OPT_RANGE_ALLOC_BLOCK_SIZE,
   "Allocation block size for storing ranges during optimization",
   (gptr*) &global_system_variables.range_alloc_block_size,
   (gptr*) &max_system_variables.range_alloc_block_size, 0, GET_ULONG,
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   REQUIRED_ARG, RANGE_ALLOC_BLOCK_SIZE, RANGE_ALLOC_BLOCK_SIZE, ULONG_MAX,
   0, 1024, 0},
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  {"read_buffer_size", OPT_RECORD_BUFFER,
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   "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.",
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   (gptr*) &global_system_variables.read_buff_size,
   (gptr*) &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG,
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   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE,
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   0},
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  {"read_only", OPT_READONLY,
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   "Make all non-temporary tables read-only, with the exception for replication (slave) threads and users with the SUPER privilege",
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   (gptr*) &opt_readonly,
   (gptr*) &opt_readonly,
   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
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  {"read_rnd_buffer_size", OPT_RECORD_RND_BUFFER,
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   "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.",
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   (gptr*) &global_system_variables.read_rnd_buff_size,
   (gptr*) &max_system_variables.read_rnd_buff_size, 0,
   GET_ULONG, REQUIRED_ARG, 256*1024L, IO_SIZE*2+MALLOC_OVERHEAD,
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   INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0},
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  {"record_buffer", OPT_RECORD_BUFFER,
   "Alias for read_buffer_size",
   (gptr*) &global_system_variables.read_buff_size,
   (gptr*) &max_system_variables.read_buff_size,0, GET_ULONG, REQUIRED_ARG,
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   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, INT_MAX32, MALLOC_OVERHEAD, IO_SIZE, 0},
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#ifdef HAVE_REPLICATION
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  {"relay_log_purge", OPT_RELAY_LOG_PURGE,
   "0 = do not purge relay logs. 1 = purge them as soon as they are no more needed.",
   (gptr*) &relay_log_purge,
   (gptr*) &relay_log_purge, 0, GET_BOOL, NO_ARG,
   1, 0, 1, 0, 1, 0},
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  {"relay_log_space_limit", OPT_RELAY_LOG_SPACE_LIMIT,
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   "Maximum space to use for all relay logs.",
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   (gptr*) &relay_log_space_limit,
   (gptr*) &relay_log_space_limit, 0, GET_ULL, REQUIRED_ARG, 0L, 0L,
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   (longlong) ULONG_MAX, 0, 1, 0},
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  {"slave_compressed_protocol", OPT_SLAVE_COMPRESSED_PROTOCOL,
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   "Use compression on master/slave protocol.",
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   (gptr*) &opt_slave_compressed_protocol,
   (gptr*) &opt_slave_compressed_protocol,
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   0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
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  {"slave_net_timeout", OPT_SLAVE_NET_TIMEOUT,
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   "Number of seconds to wait for more data from a master/slave connection before aborting the read.",
   (gptr*) &slave_net_timeout, (gptr*) &slave_net_timeout, 0,
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   GET_ULONG, REQUIRED_ARG, SLAVE_NET_TIMEOUT, 1, LONG_TIMEOUT, 0, 1, 0},
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  {"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.",
   (gptr*) &slave_trans_retries, (gptr*) &slave_trans_retries, 0,
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   GET_ULONG, REQUIRED_ARG, 10L, 0L, (longlong) ULONG_MAX, 0, 1, 0},
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#endif /* HAVE_REPLICATION */
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  {"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.",
   (gptr*) &slow_launch_time, (gptr*) &slow_launch_time, 0, GET_ULONG,
   REQUIRED_ARG, 2L, 0L, LONG_TIMEOUT, 0, 1, 0},
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  {"sort_buffer_size", OPT_SORT_BUFFER,
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   "Each thread that needs to do a sort allocates a buffer of this size.",
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   (gptr*) &global_system_variables.sortbuff_size,
   (gptr*) &max_system_variables.sortbuff_size, 0, GET_ULONG, REQUIRED_ARG,
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   MAX_SORT_MEMORY, MIN_SORT_MEMORY+MALLOC_OVERHEAD*2, UINT_MAX32, MALLOC_OVERHEAD,
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   1, 0},
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#ifdef HAVE_BERKELEY_DB
  {"sync-bdb-logs", OPT_BDB_SYNC,
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   "Synchronously flush Berkeley DB logs. Enabled by default",
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   (gptr*) &opt_sync_bdb_logs, (gptr*) &opt_sync_bdb_logs, 0, GET_BOOL,
   NO_ARG, 1, 0, 0, 0, 0, 0},
#endif /* HAVE_BERKELEY_DB */
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  {"sync-binlog", OPT_SYNC_BINLOG,
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   "Synchronously flush binary log to disk after every #th event. "
   "Use 0 (default) to disable synchronous flushing.",
   (gptr*) &sync_binlog_period, (gptr*) &sync_binlog_period, 0, GET_ULONG,
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   REQUIRED_ARG, 0, 0, ULONG_MAX, 0, 1, 0},
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  {"sync-frm", OPT_SYNC_FRM, "Sync .frm to disk on create. Enabled by default.",
   (gptr*) &opt_sync_frm, (gptr*) &opt_sync_frm, 0, GET_BOOL, NO_ARG, 1, 0,
   0, 0, 0, 0},
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  {"table_cache", OPT_TABLE_CACHE,
   "The number of open tables for all threads.", (gptr*) &table_cache_size,
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   (gptr*) &table_cache_size, 0, GET_ULONG, 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.",
   (gptr*) &table_lock_wait_timeout, (gptr*) &table_lock_wait_timeout,
   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.",
   (gptr*) &thread_cache_size, (gptr*) &thread_cache_size, 0, GET_ULONG,
   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.",
   (gptr*) &concurrency, (gptr*) &concurrency, 0, GET_ULONG, REQUIRED_ARG,
   DEFAULT_CONCURRENCY, 1, 512, 0, 1, 0},
  {"thread_stack", OPT_THREAD_STACK,
   "The stack size for each thread.", (gptr*) &thread_stack,
   (gptr*) &thread_stack, 0, GET_ULONG, REQUIRED_ARG,DEFAULT_THREAD_STACK,
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   1024L*128L, ULONG_MAX, 0, 1024, 0},
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  { "time_format", OPT_TIME_FORMAT,
    "The TIME format (for future).",
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
    (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
    0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"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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   (gptr*) &global_system_variables.tmp_table_size,
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   (gptr*) &max_system_variables.tmp_table_size, 0, GET_ULL,
   REQUIRED_ARG, 32*1024*1024L, 1024, MAX_MEM_TABLE_SIZE, 0, 1, 0},
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  {"transaction_alloc_block_size", OPT_TRANS_ALLOC_BLOCK_SIZE,
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   "Allocation block size for various transaction-related structures",
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   (gptr*) &global_system_variables.trans_alloc_block_size,
   (gptr*) &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 various transaction-related structures",
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   (gptr*) &global_system_variables.trans_prealloc_size,
   (gptr*) &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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  {"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).",
   (gptr*) &global_system_variables.updatable_views_with_limit,
   (gptr*) &max_system_variables.updatable_views_with_limit,
   0, GET_ULONG, REQUIRED_ARG, 1, 0, 1, 0, 1, 0},
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  {"wait_timeout", OPT_WAIT_TIMEOUT,
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   "The number of seconds the server waits for activity on a connection before closing it.",
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   (gptr*) &global_system_variables.net_wait_timeout,
   (gptr*) &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},
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  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
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};
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/*
  Variables shown by SHOW STATUS in alphabetical order
*/

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struct show_var_st status_vars[]= {
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  {"Aborted_clients",          (char*) &aborted_threads,        SHOW_LONG},
  {"Aborted_connects",         (char*) &aborted_connects,       SHOW_LONG},
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  {"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_admin_commands",       (char*) offsetof(STATUS_VAR, com_other), SHOW_LONG_STATUS},
  {"Com_alter_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB]), SHOW_LONG_STATUS},
  {"Com_alter_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLE]), SHOW_LONG_STATUS},
  {"Com_analyze",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ANALYZE]), SHOW_LONG_STATUS},
  {"Com_backup_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BACKUP_TABLE]), SHOW_LONG_STATUS},
  {"Com_begin",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_BEGIN]), SHOW_LONG_STATUS},
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  {"Com_call_procedure",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CALL]), SHOW_LONG_STATUS},
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  {"Com_change_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_DB]), SHOW_LONG_STATUS},
  {"Com_change_master",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHANGE_MASTER]), SHOW_LONG_STATUS},
  {"Com_check",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECK]), SHOW_LONG_STATUS},
  {"Com_checksum",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CHECKSUM]), SHOW_LONG_STATUS},
  {"Com_commit",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_COMMIT]), SHOW_LONG_STATUS},
  {"Com_create_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_DB]), SHOW_LONG_STATUS},
  {"Com_create_function",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_FUNCTION]), SHOW_LONG_STATUS},
  {"Com_create_index",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_INDEX]), SHOW_LONG_STATUS},
  {"Com_create_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_TABLE]), SHOW_LONG_STATUS},
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  {"Com_create_user",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_CREATE_USER]), SHOW_LONG_STATUS},
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  {"Com_dealloc_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DEALLOCATE_PREPARE]), SHOW_LONG_STATUS},
  {"Com_delete",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE]), SHOW_LONG_STATUS},
  {"Com_delete_multi",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DELETE_MULTI]), SHOW_LONG_STATUS},
  {"Com_do",                   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DO]), SHOW_LONG_STATUS},
  {"Com_drop_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_DB]), SHOW_LONG_STATUS},
  {"Com_drop_function",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_FUNCTION]), SHOW_LONG_STATUS},
  {"Com_drop_index",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_INDEX]), SHOW_LONG_STATUS},
  {"Com_drop_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_TABLE]), SHOW_LONG_STATUS},
  {"Com_drop_user",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_DROP_USER]), SHOW_LONG_STATUS},
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  {"Com_execute_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EXECUTE]), SHOW_LONG_STATUS},
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  {"Com_flush",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_FLUSH]), SHOW_LONG_STATUS},
  {"Com_grant",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_GRANT]), SHOW_LONG_STATUS},
  {"Com_ha_close",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_CLOSE]), SHOW_LONG_STATUS},
  {"Com_ha_open",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_OPEN]), SHOW_LONG_STATUS},
  {"Com_ha_read",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HA_READ]), SHOW_LONG_STATUS},
  {"Com_help",                 (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_HELP]), SHOW_LONG_STATUS},
  {"Com_insert",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT]), SHOW_LONG_STATUS},
  {"Com_insert_select",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_INSERT_SELECT]), SHOW_LONG_STATUS},
  {"Com_kill",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_KILL]), SHOW_LONG_STATUS},
  {"Com_load",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD]), SHOW_LONG_STATUS},
  {"Com_load_master_data",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_DATA]), SHOW_LONG_STATUS},
  {"Com_load_master_table",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOAD_MASTER_TABLE]), SHOW_LONG_STATUS},
  {"Com_lock_tables",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_LOCK_TABLES]), SHOW_LONG_STATUS},
  {"Com_optimize",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_OPTIMIZE]), SHOW_LONG_STATUS},
  {"Com_preload_keys",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PRELOAD_KEYS]), SHOW_LONG_STATUS},
  {"Com_prepare_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PREPARE]), SHOW_LONG_STATUS},
  {"Com_purge",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE]), SHOW_LONG_STATUS},
  {"Com_purge_before_date",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_PURGE_BEFORE]), SHOW_LONG_STATUS},
  {"Com_rename_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RENAME_TABLE]), SHOW_LONG_STATUS},
  {"Com_repair",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPAIR]), SHOW_LONG_STATUS},
  {"Com_replace",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE]), SHOW_LONG_STATUS},
  {"Com_replace_select",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REPLACE_SELECT]), SHOW_LONG_STATUS},
  {"Com_reset",		       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESET]), SHOW_LONG_STATUS},
  {"Com_restore_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_RESTORE_TABLE]), SHOW_LONG_STATUS},
  {"Com_revoke",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE]), SHOW_LONG_STATUS},
  {"Com_revoke_all",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_REVOKE_ALL]), SHOW_LONG_STATUS},
  {"Com_rollback",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ROLLBACK]), SHOW_LONG_STATUS},
  {"Com_savepoint",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SAVEPOINT]), SHOW_LONG_STATUS},
  {"Com_select",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SELECT]), SHOW_LONG_STATUS},
  {"Com_set_option",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SET_OPTION]), SHOW_LONG_STATUS},
  {"Com_show_binlog_events",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOG_EVENTS]), SHOW_LONG_STATUS},
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  {"Com_show_binlogs",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_BINLOGS]), SHOW_LONG_STATUS},
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  {"Com_show_charsets",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CHARSETS]), SHOW_LONG_STATUS},
  {"Com_show_collations",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLLATIONS]), SHOW_LONG_STATUS},
  {"Com_show_column_types",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_COLUMN_TYPES]), SHOW_LONG_STATUS},
  {"Com_show_create_db",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE_DB]), SHOW_LONG_STATUS},
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  {"Com_show_create_table",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_CREATE]), SHOW_LONG_STATUS},
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  {"Com_show_databases",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_DATABASES]), SHOW_LONG_STATUS},
  {"Com_show_errors",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ERRORS]), SHOW_LONG_STATUS},
  {"Com_show_fields",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_FIELDS]), SHOW_LONG_STATUS},
  {"Com_show_grants",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_GRANTS]), SHOW_LONG_STATUS},
  {"Com_show_innodb_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_INNODB_STATUS]), SHOW_LONG_STATUS},
  {"Com_show_keys",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_KEYS]), SHOW_LONG_STATUS},
  {"Com_show_logs",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_LOGS]), SHOW_LONG_STATUS},
  {"Com_show_master_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_MASTER_STAT]), SHOW_LONG_STATUS},
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  {"Com_show_ndb_status",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_NDBCLUSTER_STATUS]), SHOW_LONG_STATUS},
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  {"Com_show_new_master",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_NEW_MASTER]), SHOW_LONG_STATUS},
  {"Com_show_open_tables",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_OPEN_TABLES]), SHOW_LONG_STATUS},
  {"Com_show_privileges",      (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PRIVILEGES]), SHOW_LONG_STATUS},
  {"Com_show_processlist",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_PROCESSLIST]), SHOW_LONG_STATUS},
  {"Com_show_slave_hosts",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_HOSTS]), SHOW_LONG_STATUS},
  {"Com_show_slave_status",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_SLAVE_STAT]), SHOW_LONG_STATUS},
  {"Com_show_status",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STATUS]), SHOW_LONG_STATUS},
  {"Com_show_storage_engines", (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_STORAGE_ENGINES]), SHOW_LONG_STATUS},
  {"Com_show_tables",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TABLES]), SHOW_LONG_STATUS},
  {"Com_show_triggers",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TRIGGERS]), SHOW_LONG_STATUS},
  {"Com_show_variables",       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_VARIABLES]), SHOW_LONG_STATUS},
  {"Com_show_warnings",        (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_WARNS]), SHOW_LONG_STATUS},
  {"Com_slave_start",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_START]), SHOW_LONG_STATUS},
  {"Com_slave_stop",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SLAVE_STOP]), SHOW_LONG_STATUS},
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  {"Com_stmt_close",           (char*) offsetof(STATUS_VAR, com_stmt_close), SHOW_LONG_STATUS},
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  {"Com_stmt_execute",         (char*) offsetof(STATUS_VAR, com_stmt_execute), SHOW_LONG_STATUS},
  {"Com_stmt_fetch",           (char*) offsetof(STATUS_VAR, com_stmt_fetch), SHOW_LONG_STATUS},
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  {"Com_stmt_prepare",         (char*) offsetof(STATUS_VAR, com_stmt_prepare), SHOW_LONG_STATUS},
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  {"Com_stmt_reset",           (char*) offsetof(STATUS_VAR, com_stmt_reset), SHOW_LONG_STATUS},
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  {"Com_stmt_send_long_data",  (char*) offsetof(STATUS_VAR, com_stmt_send_long_data), SHOW_LONG_STATUS},
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  {"Com_truncate",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_TRUNCATE]), SHOW_LONG_STATUS},
  {"Com_unlock_tables",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UNLOCK_TABLES]), SHOW_LONG_STATUS},
  {"Com_update",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE]), SHOW_LONG_STATUS},
  {"Com_update_multi",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_UPDATE_MULTI]), SHOW_LONG_STATUS},
  {"Com_xa_commit",            (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_COMMIT]),SHOW_LONG_STATUS},
  {"Com_xa_end",               (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_END]),SHOW_LONG_STATUS},
  {"Com_xa_prepare",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_PREPARE]),SHOW_LONG_STATUS},
  {"Com_xa_recover",           (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_RECOVER]),SHOW_LONG_STATUS},
  {"Com_xa_rollback",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_ROLLBACK]),SHOW_LONG_STATUS},
  {"Com_xa_start",             (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_XA_START]),SHOW_LONG_STATUS},
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  {"Compression",              (char*) 0,                        SHOW_NET_COMPRESSION},
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  {"Connections",              (char*) &thread_id,              SHOW_LONG_CONST},
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  {"Created_tmp_disk_tables",  (char*) offsetof(STATUS_VAR, created_tmp_disk_tables), SHOW_LONG_STATUS},
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  {"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},
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  {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
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  {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG_CONST},
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  {"Delayed_writes",           (char*) &delayed_insert_writes,  SHOW_LONG},
  {"Flush_commands",           (char*) &refresh_version,        SHOW_LONG_CONST},
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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},
#ifdef HAVE_INNOBASE_DB
  {"Innodb_",                  (char*) &innodb_status_variables, SHOW_VARS},
#endif /*HAVE_INNOBASE_DB*/
  {"Key_blocks_not_flushed",   (char*) &dflt_key_cache_var.global_blocks_changed, SHOW_KEY_CACHE_LONG},
  {"Key_blocks_unused",        (char*) &dflt_key_cache_var.blocks_unused, SHOW_KEY_CACHE_CONST_LONG},
  {"Key_blocks_used",          (char*) &dflt_key_cache_var.blocks_used, SHOW_KEY_CACHE_CONST_LONG},
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  {"Key_read_requests",        (char*) &dflt_key_cache_var.global_cache_r_requests, SHOW_KEY_CACHE_LONGLONG},
  {"Key_reads",                (char*) &dflt_key_cache_var.global_cache_read, SHOW_KEY_CACHE_LONGLONG},
  {"Key_write_requests",       (char*) &dflt_key_cache_var.global_cache_w_requests, SHOW_KEY_CACHE_LONGLONG},
  {"Key_writes",               (char*) &dflt_key_cache_var.global_cache_write, SHOW_KEY_CACHE_LONGLONG},
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  {"Last_query_cost",          (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS},
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  {"Max_used_connections",     (char*) &max_used_connections,  SHOW_LONG},
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#ifdef HAVE_NDBCLUSTER_DB
  {"Ndb_",                     (char*) &ndb_status_variables,   SHOW_VARS},
#endif /*HAVE_NDBCLUSTER_DB*/
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  {"Not_flushed_delayed_rows", (char*) &delayed_rows_in_use,    SHOW_LONG_CONST},
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  {"Open_files",               (char*) &my_file_opened,         SHOW_LONG_CONST},
  {"Open_streams",             (char*) &my_stream_opened,       SHOW_LONG_CONST},
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  {"Open_tables",              (char*) 0,                       SHOW_OPENTABLES},
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  {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
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  {"Prepared_stmt_count",      (char*) &prepared_stmt_count,    SHOW_LONG_CONST},
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#ifdef HAVE_QUERY_CACHE
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  {"Qcache_free_blocks",       (char*) &query_cache.free_memory_blocks, SHOW_LONG_CONST},
  {"Qcache_free_memory",       (char*) &query_cache.free_memory, SHOW_LONG_CONST},
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  {"Qcache_hits",              (char*) &query_cache.hits,       SHOW_LONG},
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  {"Qcache_inserts",           (char*) &query_cache.inserts,    SHOW_LONG},
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  {"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_CONST},
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  {"Qcache_total_blocks",      (char*) &query_cache.total_blocks, SHOW_LONG_CONST},
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#endif /*HAVE_QUERY_CACHE*/
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  {"Queries",                  (char*) 0,                       SHOW_QUERIES},
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  {"Questions",                (char*) offsetof(STATUS_VAR, questions),
   SHOW_LONG_STATUS},

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  {"Rpl_status",               (char*) 0,                 SHOW_RPL_STATUS},
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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},
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  {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
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  {"Slave_retried_transactions",(char*) 0,                      SHOW_SLAVE_RETRIED_TRANS},
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  {"Slave_running",            (char*) 0,                       SHOW_SLAVE_RUNNING},
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  {"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*) 0, 	SHOW_SSL_CTX_SESS_ACCEPT_RENEGOTIATE},
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  {"Ssl_accepts",              (char*) 0,  	SHOW_SSL_CTX_SESS_ACCEPT},
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  {"Ssl_callback_cache_hits",  (char*) 0,	SHOW_SSL_CTX_SESS_CB_HITS},
  {"Ssl_cipher",               (char*) 0,  	SHOW_SSL_GET_CIPHER},
  {"Ssl_cipher_list",          (char*) 0,  	SHOW_SSL_GET_CIPHER_LIST},
  {"Ssl_client_connects",      (char*) 0,	SHOW_SSL_CTX_SESS_CONNECT},
  {"Ssl_connect_renegotiates", (char*) 0, 	SHOW_SSL_CTX_SESS_CONNECT_RENEGOTIATE},
  {"Ssl_ctx_verify_depth",     (char*) 0,	SHOW_SSL_CTX_GET_VERIFY_DEPTH},
  {"Ssl_ctx_verify_mode",      (char*) 0,	SHOW_SSL_CTX_GET_VERIFY_MODE},
  {"Ssl_default_timeout",      (char*) 0,  	SHOW_SSL_GET_DEFAULT_TIMEOUT},
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  {"Ssl_finished_accepts",     (char*) 0,  	SHOW_SSL_CTX_SESS_ACCEPT_GOOD},
  {"Ssl_finished_connects",    (char*) 0,  	SHOW_SSL_CTX_SESS_CONNECT_GOOD},
  {"Ssl_session_cache_hits",   (char*) 0,	SHOW_SSL_CTX_SESS_HITS},
  {"Ssl_session_cache_misses", (char*) 0,	SHOW_SSL_CTX_SESS_MISSES},
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  {"Ssl_session_cache_mode",   (char*) 0,	SHOW_SSL_CTX_GET_SESSION_CACHE_MODE},
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  {"Ssl_session_cache_overflows", (char*) 0,	SHOW_SSL_CTX_SESS_CACHE_FULL},
  {"Ssl_session_cache_size",   (char*) 0,	SHOW_SSL_CTX_SESS_GET_CACHE_SIZE},
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  {"Ssl_session_cache_timeouts", (char*) 0,	SHOW_SSL_CTX_SESS_TIMEOUTS},
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  {"Ssl_sessions_reused",      (char*) 0,	SHOW_SSL_SESSION_REUSED},
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  {"Ssl_used_session_cache_entries",(char*) 0,	SHOW_SSL_CTX_SESS_NUMBER},
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  {"Ssl_verify_depth",         (char*) 0,	SHOW_SSL_GET_VERIFY_DEPTH},
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  {"Ssl_verify_mode",          (char*) 0,	SHOW_SSL_GET_VERIFY_MODE},
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  {"Ssl_version",   	       (char*) 0,  	SHOW_SSL_GET_VERSION},
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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},
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#ifdef HAVE_MMAP
  {"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},
#endif
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  {"Threads_cached",           (char*) &cached_thread_count,    SHOW_LONG_CONST},
  {"Threads_connected",        (char*) &thread_count,           SHOW_INT_CONST},
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  {"Threads_created",	       (char*) &thread_created,		SHOW_LONG_CONST},
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  {"Threads_running",          (char*) &thread_running,         SHOW_INT_CONST},
  {"Uptime",                   (char*) 0,                       SHOW_STARTTIME},
  {NullS, NullS, SHOW_LONG}
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};

static void print_version(void)
{
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  set_server_version();
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  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)
{
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  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("\
Copyright (C) 2000 MySQL AB, by Monty and others\n\
This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\
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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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  printf("Usage: %s [OPTIONS]\n", my_progname);
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  if (!opt_verbose)
    puts("\nFor more help options (several pages), use mysqld --verbose --help\n");
  else
  {
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#ifdef __WIN__
  puts("NT and Win32 specific options:\n\
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  --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\
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  --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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");
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  puts("");
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#endif
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  print_defaults(MYSQL_CONFIG_NAME,load_default_groups);
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  puts("");
  fix_paths();
  set_ports();
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  my_print_help(my_long_options);
  my_print_variables(my_long_options);

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  puts("\n\
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To see what values a running MySQL server is using, type\n\
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'mysqladmin variables' instead of 'mysqld --verbose --help'.\n");
  }
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}


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/*
  Initialize all MySQL global variables to default values

  SYNOPSIS
    mysql_init_variables()

  NOTES
    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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    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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static void mysql_init_variables(void)
{
  /* Things reset to zero */
  opt_skip_slave_start= opt_reckless_slave = 0;
  mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0;
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  myisam_test_invalid_symlink= test_if_data_home_dir;
6759 6760
  opt_log= opt_slow_log= 0;
  opt_update_log= 0;
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6761
  opt_bin_log= 0;
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6762
  opt_disable_networking= opt_skip_show_db=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 !
6765
  opt_secure_auth= 0;
6766
  opt_secure_file_priv= 0;
6767
  opt_bootstrap= opt_myisam_log= 0;
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  mqh_used= 0;
  segfaulted= kill_in_progress= 0;
  cleanup_done= 0;
  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;
  opt_using_transactions= using_update_log= 0;
  abort_loop= select_thread_in_use= signal_thread_in_use= 0;
  ready_to_exit= shutdown_in_progress= grant_option= 0;
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6781
  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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6784
  specialflag= 0;
6785
  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;
6788
  prepared_stmt_count= 0;
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  errmesg= 0;
6790
  mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS;
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6791
  bzero((gptr) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list));
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  bzero((char *) &global_status_var, sizeof(global_status_var));
  opt_large_pages= 0;
6794
  key_map_full.set_all();
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6795

6796 6797 6798 6799 6800
  /* 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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6801
  character_set_filesystem= &my_charset_bin;
6802

6803 6804
  opt_date_time_formats[0]= opt_date_time_formats[1]= opt_date_time_formats[2]= 0;

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6805 6806 6807 6808 6809 6810 6811 6812 6813 6814
  /* Things with default values that are not zero */
  delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
  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;
  thd_startup_options= (OPTION_UPDATE_LOG | OPTION_AUTO_IS_NULL |
6815
			OPTION_BIN_LOG | OPTION_QUOTE_SHOW_CREATE |
6816
			OPTION_SQL_NOTES);
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  protocol_version= PROTOCOL_VERSION;
  what_to_log= ~ (1L << (uint) COM_TIME);
  refresh_version= flush_version= 1L;	/* Increments on each reload */
6820
  global_query_id= thread_id= 1L;
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6821 6822
  strmov(server_version, MYSQL_SERVER_VERSION);
  myisam_recover_options_str= sql_mode_str= "OFF";
6823
  myisam_stats_method_str= "nulls_unequal";
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  my_bind_addr = htonl(INADDR_ANY);
  threads.empty();
  thread_cache.empty();
6827
  key_caches.empty();
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6828
  if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str,
6829
					       default_key_cache_base.length)))
6830
    exit(1);
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6831
  multi_keycache_init(); /* set key_cache_hash.default_value = dflt_key_cache */
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6832 6833 6834 6835 6836 6837 6838 6839 6840 6841 6842 6843 6844 6845 6846 6847 6848 6849 6850

  /* Initialize structures that is used when processing options */
  replicate_rewrite_db.empty();
  replicate_do_db.empty();
  replicate_ignore_db.empty();
  binlog_do_db.empty();
  binlog_ignore_db.empty();

  /* Set directory paths */
  strmake(language, LANGUAGE, sizeof(language)-1);
  strmake(mysql_real_data_home, get_relative_path(DATADIR),
	  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;

  /* Replication parameters */
  master_user= (char*) "test";
  master_password= master_host= 0;
  master_info_file= (char*) "master.info",
6851
    relay_log_info_file= (char*) "relay-log.info";
grog@mysql.com[grog]'s avatar
foo1  
grog@mysql.com[grog] committed
6852
  master_ssl_key= master_ssl_cert= master_ssl_ca=
6853
    master_ssl_capath= master_ssl_cipher= 0;
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6854 6855 6856 6857 6858
  report_user= report_password = report_host= 0;	/* TO BE DELETED */
  opt_relay_logname= opt_relaylog_index_name= 0;

  /* Variables in libraries */
  charsets_dir= 0;
6859
  default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME;
6860
  default_collation_name= compiled_default_collation_name;
6861
  sys_charset_system.value= (char*) system_charset_info->csname;
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bar@mysql.com committed
6862
  character_set_filesystem_name= (char*) "binary";
6863
  lc_time_names_name= (char*) "en_US";
6864

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monty@mashka.mysql.fi committed
6865
  /* Set default values for some option variables */
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6866 6867
  global_system_variables.table_type=   DB_TYPE_MYISAM;
  global_system_variables.tx_isolation= ISO_REPEATABLE_READ;
6868
  global_system_variables.select_limit= (ulonglong) HA_POS_ERROR;
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6869
  max_system_variables.select_limit=    (ulonglong) HA_POS_ERROR;
6870
  global_system_variables.max_join_size= (ulonglong) HA_POS_ERROR;
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monty@mashka.mysql.fi committed
6871
  max_system_variables.max_join_size=   (ulonglong) HA_POS_ERROR;
6872
  global_system_variables.old_passwords= 0;
grog@mysql.com[grog]'s avatar
foo1  
grog@mysql.com[grog] committed
6873

6874
  /*
6875
    Default behavior for 4.1 and 5.0 is to treat NULL values as unequal
6876 6877 6878
    when collecting index statistics for MyISAM tables.
  */
  global_system_variables.myisam_stats_method= MI_STATS_METHOD_NULLS_NOT_EQUAL;
6879

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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);
#ifdef HAVE_BERKELEY_DB
  have_berkeley_db= SHOW_OPTION_YES;
#else
  have_berkeley_db= SHOW_OPTION_NO;
#endif
#ifdef HAVE_INNOBASE_DB
  have_innodb=SHOW_OPTION_YES;
#else
  have_innodb=SHOW_OPTION_NO;
#endif
  have_isam=SHOW_OPTION_NO;
6897 6898 6899 6900 6901
#ifdef HAVE_EXAMPLE_DB
  have_example_db= SHOW_OPTION_YES;
#else
  have_example_db= SHOW_OPTION_NO;
#endif
6902
#if defined(HAVE_ARCHIVE_DB)
6903 6904 6905 6906
  have_archive_db= SHOW_OPTION_YES;
#else
  have_archive_db= SHOW_OPTION_NO;
#endif
6907 6908 6909 6910 6911
#ifdef HAVE_BLACKHOLE_DB
  have_blackhole_db= SHOW_OPTION_YES;
#else
  have_blackhole_db= SHOW_OPTION_NO;
#endif
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6912 6913 6914 6915 6916
#ifdef HAVE_FEDERATED_DB
  have_federated_db= SHOW_OPTION_YES;
#else
  have_federated_db= SHOW_OPTION_NO;
#endif
6917 6918 6919 6920 6921
#ifdef HAVE_CSV_DB
  have_csv_db= SHOW_OPTION_YES;
#else
  have_csv_db= SHOW_OPTION_NO;
#endif
6922
#ifdef HAVE_NDBCLUSTER_DB
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6923
  have_ndbcluster=SHOW_OPTION_DISABLED;
6924 6925 6926
#else
  have_ndbcluster=SHOW_OPTION_NO;
#endif
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6927 6928 6929 6930 6931 6932
#ifdef USE_RAID
  have_raid=SHOW_OPTION_YES;
#else
  have_raid=SHOW_OPTION_NO;
#endif
#ifdef HAVE_OPENSSL
6933
  have_ssl=SHOW_OPTION_YES;
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6934
#else
6935
  have_ssl=SHOW_OPTION_NO;
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monty@mashka.mysql.fi committed
6936
#endif
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6937
#ifdef HAVE_BROKEN_REALPATH
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6938 6939 6940 6941
  have_symlink=SHOW_OPTION_NO;
#else
  have_symlink=SHOW_OPTION_YES;
#endif
6942 6943 6944 6945 6946
#ifdef HAVE_DLOPEN
  have_dlopen=SHOW_OPTION_YES;
#else
  have_dlopen=SHOW_OPTION_NO;
#endif
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6947 6948 6949 6950 6951
#ifdef HAVE_QUERY_CACHE
  have_query_cache=SHOW_OPTION_YES;
#else
  have_query_cache=SHOW_OPTION_NO;
#endif
6952 6953 6954 6955 6956 6957 6958 6959 6960 6961
#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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6962 6963 6964 6965 6966 6967
#ifdef HAVE_CRYPT
  have_crypt=SHOW_OPTION_YES;
#else
  have_crypt=SHOW_OPTION_NO;
#endif
#ifdef HAVE_COMPRESS
6968
  have_compress= SHOW_OPTION_YES;
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6969
#else
6970
  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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6986 6987
#if defined(__WIN__) || defined(__NETWARE__)
  /* Allow Win32 and NetWare users to move MySQL anywhere */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
6988 6989 6990 6991 6992 6993 6994 6995
  {
    char prg_dev[LIBLEN];
    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;
6996
  if (!(tmpenv = getenv("MY_BASEDIR_VERSION")))
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bk@work.mysql.com committed
6997
    tmpenv = DEFAULT_MYSQL_HOME;
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
6998
  (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1);
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bk@work.mysql.com committed
6999 7000 7001 7002
#endif
}


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paul@kite-hub.kitebird.com committed
7003
static my_bool
7004 7005
get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
	       char *argument)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
7006
{
7007 7008
  switch(optid) {
  case '#':
7009
#ifndef DBUG_OFF
7010
    DBUG_SET_INITIAL(argument ? argument : default_dbug_option);
7011 7012 7013 7014
#endif
    opt_endinfo=1;				/* unireg: memory allocation */
    break;
  case 'a':
7015
    global_system_variables.sql_mode= fix_sql_mode(MODE_ANSI);
7016
    global_system_variables.tx_isolation= ISO_SERIALIZABLE;
7017 7018 7019 7020
    break;
  case 'b':
    strmake(mysql_home,argument,sizeof(mysql_home)-1);
    break;
7021
  case 'C':
7022 7023
    if (default_collation_name == compiled_default_collation_name)
      default_collation_name= 0;
7024
    break;
7025 7026 7027 7028 7029
  case 'l':
    opt_log=1;
    break;
  case 'h':
    strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
7030 7031
    /* Correct pointer set by my_getopt (for embedded library) */
    mysql_data_home= mysql_real_data_home;
7032
    break;
7033
  case 'u':
7034
    if (!mysqld_user || !strcmp(mysqld_user, argument))
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monty@narttu.mysql.fi committed
7035
      mysqld_user= argument;
7036
    else
7037
      sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user);
7038
    break;
7039 7040 7041
  case 'L':
    strmake(language, argument, sizeof(language)-1);
    break;
hf@deer.mysql.r18.ru's avatar
SCRUM  
hf@deer.mysql.r18.ru committed
7042
#ifdef HAVE_REPLICATION
7043 7044 7045
  case OPT_SLAVE_SKIP_ERRORS:
    init_slave_skip_errors(argument);
    break;
7046
#endif
7047
  case OPT_SAFEMALLOC_MEM_LIMIT:
7048
#if !defined(DBUG_OFF) && defined(SAFEMALLOC)
7049
    sf_malloc_mem_limit = atoi(argument);
7050
#endif
7051
    break;
7052
#include <sslopt-case.h>
7053 7054 7055
  case 'V':
    print_version();
    exit(0);
7056 7057 7058 7059 7060 7061 7062 7063
  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;
7064 7065
  case 'T':
    test_flags= argument ? (uint) atoi(argument) : 0;
7066
    test_flags&= ~TEST_NO_THREADS;
7067 7068 7069 7070 7071 7072 7073 7074 7075 7076 7077 7078
    opt_endinfo=1;
    break;
  case (int) OPT_BIG_TABLES:
    thd_startup_options|=OPTION_BIG_TABLES;
    break;
  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:
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7079
    opt_bin_log= test(argument != disabled_my_option);
7080
    break;
7081 7082 7083
  case (int) OPT_ERROR_LOG_FILE:
    opt_error_log= 1;
    break;
hf@deer.mysql.r18.ru's avatar
SCRUM  
hf@deer.mysql.r18.ru committed
7084
#ifdef HAVE_REPLICATION
7085
  case (int) OPT_INIT_RPL_ROLE:
7086 7087 7088
  {
    int role;
    if ((role=find_type(argument, &rpl_role_typelib, 2)) <= 0)
7089
    {
7090 7091
      fprintf(stderr, "Unknown replication role: %s\n", argument);
      exit(1);
7092
    }
7093 7094 7095
    rpl_status = (role == 1) ?  RPL_AUTH_MASTER : RPL_IDLE_SLAVE;
    break;
  }
7096
  case (int)OPT_REPLICATE_IGNORE_DB:
7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107 7108 7109 7110
  {
    i_string *db = new i_string(argument);
    replicate_ignore_db.push_back(db);
    break;
  }
  case (int)OPT_REPLICATE_DO_DB:
  {
    i_string *db = new i_string(argument);
    replicate_do_db.push_back(db);
    break;
  }
  case (int)OPT_REPLICATE_REWRITE_DB:
  {
    char* key = argument,*p, *val;
7111

7112
    if (!(p= strstr(argument, "->")))
7113
    {
7114 7115 7116
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - missing '->'!\n");
      exit(1);
7117
    }
7118
    val= p--;
7119
    while (my_isspace(mysqld_charset, *p) && p > argument)
7120 7121
      *p-- = 0;
    if (p == argument)
7122
    {
7123 7124 7125
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - empty FROM db!\n");
      exit(1);
7126
    }
7127 7128
    *val= 0;
    val+= 2;
7129
    while (*val && my_isspace(mysqld_charset, *val))
7130 7131
      *val++;
    if (!*val)
7132
    {
7133 7134 7135
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - empty TO db!\n");
      exit(1);
7136 7137
    }

7138 7139 7140 7141 7142
    i_string_pair *db_pair = new i_string_pair(key, val);
    replicate_rewrite_db.push_back(db_pair);
    break;
  }

7143
  case (int)OPT_BINLOG_IGNORE_DB:
7144 7145 7146 7147 7148
  {
    i_string *db = new i_string(argument);
    binlog_ignore_db.push_back(db);
    break;
  }
7149
  case (int)OPT_BINLOG_DO_DB:
7150 7151 7152 7153 7154
  {
    i_string *db = new i_string(argument);
    binlog_do_db.push_back(db);
    break;
  }
7155
  case (int)OPT_REPLICATE_DO_TABLE:
7156 7157 7158 7159
  {
    if (!do_table_inited)
      init_table_rule_hash(&replicate_do_table, &do_table_inited);
    if (add_table_rule(&replicate_do_table, argument))
7160
    {
7161 7162
      fprintf(stderr, "Could not add do table rule '%s'!\n", argument);
      exit(1);
7163
    }
7164 7165 7166
    table_rules_on = 1;
    break;
  }
7167
  case (int)OPT_REPLICATE_WILD_DO_TABLE:
7168 7169 7170 7171 7172
  {
    if (!wild_do_table_inited)
      init_table_rule_array(&replicate_wild_do_table,
			    &wild_do_table_inited);
    if (add_wild_table_rule(&replicate_wild_do_table, argument))
7173
    {
7174 7175
      fprintf(stderr, "Could not add do table rule '%s'!\n", argument);
      exit(1);
7176
    }
7177 7178 7179
    table_rules_on = 1;
    break;
  }
7180
  case (int)OPT_REPLICATE_WILD_IGNORE_TABLE:
7181 7182 7183 7184 7185
  {
    if (!wild_ignore_table_inited)
      init_table_rule_array(&replicate_wild_ignore_table,
			    &wild_ignore_table_inited);
    if (add_wild_table_rule(&replicate_wild_ignore_table, argument))
7186
    {
7187 7188
      fprintf(stderr, "Could not add ignore table rule '%s'!\n", argument);
      exit(1);
7189
    }
7190 7191 7192
    table_rules_on = 1;
    break;
  }
7193
  case (int)OPT_REPLICATE_IGNORE_TABLE:
7194 7195 7196 7197
  {
    if (!ignore_table_inited)
      init_table_rule_hash(&replicate_ignore_table, &ignore_table_inited);
    if (add_table_rule(&replicate_ignore_table, argument))
7198
    {
7199 7200
      fprintf(stderr, "Could not add ignore table rule '%s'!\n", argument);
      exit(1);
7201
    }
7202 7203 7204
    table_rules_on = 1;
    break;
  }
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SCRUM  
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#endif /* HAVE_REPLICATION */
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  case (int) OPT_SLOW_QUERY_LOG:
    opt_slow_log=1;
    break;
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  case (int) OPT_SKIP_NEW:
    opt_specialflag|= SPECIAL_NO_NEW_FUNC;
7211
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
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    myisam_concurrent_insert=0;
    myisam_recover_options= HA_RECOVER_NONE;
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    sp_automatic_privileges=0;
7215
    my_use_symdir=0;
7216
    ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE);
7217
#ifdef HAVE_QUERY_CACHE
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    query_cache_size=0;
#endif
    break;
  case (int) OPT_SAFE:
    opt_specialflag|= SPECIAL_SAFE_MODE;
7223
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
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    myisam_recover_options= HA_RECOVER_DEFAULT;
    ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE);
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    break;
  case (int) OPT_SKIP_PRIOR:
    opt_specialflag|= SPECIAL_NO_PRIOR;
    break;
  case (int) OPT_SKIP_LOCK:
7231
    opt_external_locking=0;
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    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");
    exit(1);
7243
#endif
7244
    opt_disable_networking=1;
7245
    mysqld_port=0;
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    break;
  case (int) OPT_SKIP_SHOW_DB:
    opt_skip_show_db=1;
    opt_specialflag|=SPECIAL_SKIP_SHOW_DB;
    break;
7251
#ifdef ONE_THREAD
7252 7253
  case (int) OPT_ONE_THREAD:
    test_flags |= TEST_NO_THREADS;
7254
#endif
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    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)
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    {
      struct hostent *ent;
7269
      if (argument[0])
7270
	ent=gethostbyname(argument);
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      else
      {
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	char myhostname[255];
	if (gethostname(myhostname,sizeof(myhostname)) < 0)
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7275
	{
7276
	  sql_perror("Can't start server: cannot get my own hostname!");
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	  exit(1);
	}
7279
	ent=gethostbyname(myhostname);
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      }
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      if (!ent)
      {
	sql_perror("Can't start server: cannot resolve hostname!");
	exit(1);
      }
      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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#ifdef __WIN__
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  case (int) OPT_STANDALONE:		/* Dummy option for NT */
    break;
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#endif
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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;   
7315
      WARN_DEPRECATED(NULL, "5.2", "for replication startup options", 
7316 7317 7318
        "'CHANGE MASTER'");
    }
    break;
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  case OPT_CONSOLE:
    if (opt_console)
      opt_error_log= 0;			// Force logs to stdout
    break;
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  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;
7329
    global_system_variables.low_priority_updates=1;
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    break;
  case OPT_BOOTSTRAP:
    opt_noacl=opt_bootstrap=1;
    break;
7334
  case OPT_STORAGE_ENGINE:
7335
  {
7336
    if ((enum db_type)((global_system_variables.table_type=
7337 7338
                        ha_resolve_by_name(argument, strlen(argument)))) ==
        DB_TYPE_UNKNOWN)
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    {
7340
      fprintf(stderr,"Unknown/unsupported table type: %s\n",argument);
7341
      exit(1);
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7342
    }
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    break;
  }
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  case OPT_SERVER_ID:
    server_id_supplied = 1;
    break;
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  case OPT_DELAY_KEY_WRITE_ALL:
    if (argument != disabled_my_option)
      argument= (char*) "ALL";
    /* Fall through */
7352
  case OPT_DELAY_KEY_WRITE:
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    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;
      if ((type=find_type(argument, &delay_key_write_typelib, 2)) <= 0)
      {
	fprintf(stderr,"Unknown delay_key_write type: %s\n",argument);
	exit(1);
      }
      delay_key_write_options= (uint) type-1;
    }
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    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:
7373 7374 7375
  {
    int type;
    if ((type=find_type(argument, &tx_isolation_typelib, 2)) <= 0)
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    {
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      fprintf(stderr,"Unknown transaction isolation type: %s\n",argument);
      exit(1);
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    }
7380
    global_system_variables.tx_isolation= (type-1);
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    break;
  }
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  case OPT_MERGE:
    if (opt_merge)
      have_merge_db= SHOW_OPTION_YES;
    else
      have_merge_db= SHOW_OPTION_DISABLED;
7388
    break;
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#ifdef HAVE_FEDERATED_DB
  case OPT_FEDERATED:
    if (opt_federated)
      have_federated_db= SHOW_OPTION_YES;
    else
      have_federated_db= SHOW_OPTION_DISABLED;
    break;
#endif
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#ifdef HAVE_BERKELEY_DB
7398
  case OPT_BDB_NOSYNC:
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    /* Deprecated option */
    opt_sync_bdb_logs= 0;
    /* Fall through */
  case OPT_BDB_SYNC:
    if (!opt_sync_bdb_logs)
      berkeley_env_flags|= DB_TXN_NOSYNC;
    else
      berkeley_env_flags&= ~DB_TXN_NOSYNC;
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    break;
  case OPT_BDB_NO_RECOVER:
    berkeley_init_flags&= ~(DB_RECOVER);
    break;
  case OPT_BDB_LOCK:
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  {
    int type;
    if ((type=find_type(argument, &berkeley_lock_typelib, 2)) > 0)
      berkeley_lock_type=berkeley_lock_types[type-1];
    else
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    {
7418
      int err;
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      char *end;
      uint length= strlen(argument);
7421
      long value= my_strntol(&my_charset_latin1, argument, length, 10, &end, &err);
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      if (end == argument+length)
7423
	berkeley_lock_scan_time= value;
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      else
      {
7426 7427
	fprintf(stderr,"Unknown lock type: %s\n",argument);
	exit(1);
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      }
    }
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    break;
  }
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  case OPT_BDB_SHARED:
    berkeley_init_flags&= ~(DB_PRIVATE);
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    berkeley_shared_data= 1;
7435
    break;
7436
#endif /* HAVE_BERKELEY_DB */
7437
  case OPT_BDB:
7438
#ifdef HAVE_BERKELEY_DB
7439
    if (opt_bdb)
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      have_berkeley_db= SHOW_OPTION_YES;
7441
    else
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      have_berkeley_db= SHOW_OPTION_DISABLED;
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#endif
    break;
  case OPT_NDBCLUSTER:
#ifdef HAVE_NDBCLUSTER_DB
    if (opt_ndbcluster)
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      have_ndbcluster= SHOW_OPTION_YES;
7449
    else
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      have_ndbcluster= SHOW_OPTION_DISABLED;
7451 7452
#endif
    break;
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#ifdef HAVE_NDBCLUSTER_DB
  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;
#endif
7478
  case OPT_INNODB:
7479
#ifdef HAVE_INNOBASE_DB
7480
    if (opt_innodb)
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      have_innodb= SHOW_OPTION_YES;
7482
    else
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      have_innodb= SHOW_OPTION_DISABLED;
7484
#endif
7485 7486
    break;
  case OPT_INNODB_DATA_FILE_PATH:
7487
#ifdef HAVE_INNOBASE_DB
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7488
    innobase_data_file_path= argument;
7489
#endif
7490
    break;
7491
#ifdef HAVE_INNOBASE_DB
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  case OPT_INNODB_LOG_ARCHIVE:
    innobase_log_archive= argument ? test(atoi(argument)) : 1;
    break;
7495
#endif /* HAVE_INNOBASE_DB */
7496
  case OPT_MYISAM_RECOVER:
7497
  {
7498
    if (!argument)
7499
    {
7500 7501
      myisam_recover_options=    HA_RECOVER_DEFAULT;
      myisam_recover_options_str= myisam_recover_typelib.type_names[0];
7502
    }
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    else if (!argument[0])
    {
      myisam_recover_options= HA_RECOVER_NONE;
      myisam_recover_options_str= "OFF";
    }
7508
    else
7509
    {
7510 7511 7512
      myisam_recover_options_str=argument;
      if ((myisam_recover_options=
	   find_bit_type(argument, &myisam_recover_typelib)) == ~(ulong) 0)
7513
      {
7514
	fprintf(stderr, "Unknown option to myisam-recover: %s\n",argument);
7515 7516 7517
	exit(1);
      }
    }
7518 7519 7520
    ha_open_options|=HA_OPEN_ABORT_IF_CRASHED;
    break;
  }
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  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;
  case OPT_TC_HEURISTIC_RECOVER:
  {
    if ((tc_heuristic_recover=find_type(argument,
                                        &tc_heuristic_recover_typelib, 2)) <=0)
    {
      fprintf(stderr, "Unknown option to tc-heuristic-recover: %s\n",argument);
      exit(1);
    }
7536
    break;
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7537
  }
7538 7539
  case OPT_MYISAM_STATS_METHOD:
  {
7540
    ulong method_conv;
7541
    int method;
7542 7543 7544
    LINT_INIT(method_conv);

    myisam_stats_method_str= argument;
7545 7546 7547 7548 7549
    if ((method=find_type(argument, &myisam_stats_method_typelib, 2)) <= 0)
    {
      fprintf(stderr, "Invalid value of myisam_stats_method: %s.\n", argument);
      exit(1);
    }
7550
    switch (method-1) {
7551 7552
    case 2:
      method_conv= MI_STATS_METHOD_IGNORE_NULLS;
7553 7554
      break;
    case 1:
7555
      method_conv= MI_STATS_METHOD_NULLS_EQUAL;
7556
      break;
7557 7558
    case 0:
    default:
7559
      method_conv= MI_STATS_METHOD_NULLS_NOT_EQUAL;
7560 7561 7562
      break;
    }
    global_system_variables.myisam_stats_method= method_conv;
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    break;
  }
7565 7566
  case OPT_SQL_MODE:
  {
7567 7568 7569
    sql_mode_str= argument;
    if ((global_system_variables.sql_mode=
         find_bit_type(argument, &sql_mode_typelib)) == ~(ulong) 0)
7570 7571 7572 7573
    {
      fprintf(stderr, "Unknown option to sql-mode: %s\n", argument);
      exit(1);
    }
7574 7575
    global_system_variables.sql_mode= fix_sql_mode(global_system_variables.
						   sql_mode);
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7576
    break;
7577
  }
7578
  case OPT_FT_BOOLEAN_SYNTAX:
7579
    if (ft_boolean_check_syntax_string((byte*) argument))
7580 7581 7582 7583
    {
      fprintf(stderr, "Invalid ft-boolean-syntax string: %s\n", argument);
      exit(1);
    }
7584
    strmake(ft_boolean_syntax, argument, sizeof(ft_boolean_syntax)-1);
7585 7586
    break;
  case OPT_SKIP_SAFEMALLOC:
7587
#ifdef SAFEMALLOC
7588
    sf_malloc_quick=1;
7589
#endif
7590
    break;
7591 7592
  case OPT_LOWER_CASE_TABLE_NAMES:
    lower_case_table_names= argument ? atoi(argument) : 1;
7593
    lower_case_table_names_used= 1;
7594
    break;
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7595
  }
7596 7597 7598
  return 0;
}
	/* Initiates DEBUG - but no debugging here ! */
7599

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7600
static gptr *
7601
mysql_getopt_value(const char *keyname, uint key_length,
7602 7603
		   const struct my_option *option)
{
7604 7605
  switch (option->id) {
  case OPT_KEY_BUFFER_SIZE:
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  case OPT_KEY_CACHE_BLOCK_SIZE:
7607 7608
  case OPT_KEY_CACHE_DIVISION_LIMIT:
  case OPT_KEY_CACHE_AGE_THRESHOLD:
7609
  {
7610
    KEY_CACHE *key_cache;
7611 7612
    if (!(key_cache= get_or_create_key_cache(keyname, key_length)))
      exit(1);
7613 7614
    switch (option->id) {
    case OPT_KEY_BUFFER_SIZE:
7615
      return (gptr*) &key_cache->param_buff_size;
7616
    case OPT_KEY_CACHE_BLOCK_SIZE:
7617
      return (gptr*) &key_cache->param_block_size;
7618
    case OPT_KEY_CACHE_DIVISION_LIMIT:
7619
      return (gptr*) &key_cache->param_division_limit;
7620
    case OPT_KEY_CACHE_AGE_THRESHOLD:
7621
      return (gptr*) &key_cache->param_age_threshold;
7622
    }
7623 7624
  }
  }
7625
 return option->value;
7626 7627
}

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7628

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7629
static void option_error_reporter(enum loglevel level, const char *format, ...)
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7630
{
7631
  va_list args;
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  va_start(args, format);
  vprint_msg_to_log(level, format, args);
  va_end(args);
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}
7636

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7637

7638 7639 7640 7641
static void get_options(int argc,char **argv)
{
  int ho_error;

7642
  my_getopt_register_get_addr(mysql_getopt_value);
7643
  strmake(def_ft_boolean_syntax, ft_boolean_syntax,
7644
	  sizeof(ft_boolean_syntax)-1);
7645
  my_getopt_error_reporter= option_error_reporter;
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  if ((ho_error= handle_options(&argc, &argv, my_long_options,
                                get_one_option)))
7648
    exit(ho_error);
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#ifndef HAVE_NDBCLUSTER_DB
  if (opt_ndbcluster)
    sql_print_warning("this binary does not contain NDBCLUSTER storage engine");
#endif
#ifndef HAVE_INNOBASE_DB
  if (opt_innodb)
    sql_print_warning("this binary does not contain INNODB storage engine");
#endif
#ifndef HAVE_ISAM
  if (opt_isam)
    sql_print_warning("this binary does not contain ISAM storage engine");
#endif
#ifndef HAVE_BERKELEY_DB
  if (opt_bdb)
    sql_print_warning("this binary does not contain BDB storage engine");
#endif
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  if ((opt_log_slow_admin_statements || opt_log_queries_not_using_indexes) &&
      !opt_slow_log)
    sql_print_warning("options --log-slow-admin-statements and --log-queries-not-using-indexes have no effect if --log-slow-queries is not set");
7669

7670 7671
  if (argc > 0)
  {
7672
    fprintf(stderr, "%s: Too many arguments (first extra is '%s').\nUse --help to get a list of available options\n", my_progname, *argv);
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7673 7674
    /* FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code? */
    exit(1);
7675
  }
7676

7677
  if (opt_help)
7678 7679 7680 7681
  {
    usage();
    exit(0);
  }
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7682
#if defined(HAVE_BROKEN_REALPATH)
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  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
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  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;
  }
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  /* Set global MyISAM variables from delay_key_write_options */
  fix_delay_key_write((THD*) 0, OPT_GLOBAL);

7702
#ifndef EMBEDDED_LIBRARY
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  if (mysqld_chroot)
    set_root(mysqld_chroot);
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#else
  max_allowed_packet= global_system_variables.max_allowed_packet;
  net_buffer_length= global_system_variables.net_buffer_length;
7708
#endif
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7709
  fix_paths();
7710

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  /*
    Set some global variables from the global_system_variables
    In most cases the global variables will not be used
  */
7715
  my_disable_locking= myisam_single_user= test(opt_external_locking == 0);
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  my_default_record_cache_size=global_system_variables.read_buff_size;
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  myisam_max_temp_length=
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    (my_off_t) global_system_variables.myisam_max_sort_file_size;
7719

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  /* Set global variables based on startup options */
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  myisam_block_size=(uint) 1 << my_bit_log2(opt_myisam_block_size);
7722

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  if (opt_short_log_format)
    opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;
7725

7726
  if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE,
7727
				  &global_system_variables.date_format) ||
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      init_global_datetime_format(MYSQL_TIMESTAMP_TIME,
7729
				  &global_system_variables.time_format) ||
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      init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME,
7731 7732
				  &global_system_variables.datetime_format))
    exit(1);
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}


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/*
  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,
7746
                     MYSQL_SERVER_SUFFIX_STR, NullS);
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#ifdef EMBEDDED_LIBRARY
  end= strmov(end, "-embedded");
#endif
#ifndef DBUG_OFF
7751
  if (!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug"))
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    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
}


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static char *get_relative_path(const char *path)
{
  if (test_if_hard_path(path) &&
7762
      is_prefix(path,DEFAULT_MYSQL_HOME) &&
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7763 7764
      strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR))
  {
7765
    path+=(uint) strlen(DEFAULT_MYSQL_HOME);
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    while (*path == FN_LIBCHAR)
      path++;
  }
  return (char*) path;
}


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/*
  Fix filename and replace extension where 'dir' is relative to
  mysql_real_data_home.
  Return 1 if len(path) > FN_REFLEN
*/

bool
fn_format_relative_to_data_home(my_string to, const char *name,
				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,
		    MY_REPLACE_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH);
}


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7795 7796
static void fix_paths(void)
{
7797
  char buff[FN_REFLEN],*pos;
7798
  convert_dirname(mysql_home,mysql_home,NullS);
7799
  /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */
7800
  my_realpath(mysql_home,mysql_home,MYF(0));
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  /* Ensure that mysql_home ends in FN_LIBCHAR */
  pos=strend(mysql_home);
  if (pos[-1] != FN_LIBCHAR)
  {
    pos[0]= FN_LIBCHAR;
    pos[1]= 0;
  }
7808
  convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS);
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  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;


7815
  convert_dirname(language,language,NullS);
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  (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);
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  (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr :
                                      "", "");
  opt_plugin_dir_ptr= opt_plugin_dir;
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7822

7823
  char *sharedir=get_relative_path(SHAREDIR);
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7824
  if (test_if_hard_path(sharedir))
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7825
    strmake(buff,sharedir,sizeof(buff)-1);		/* purecov: tested */
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7826
  else
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7827
    strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS);
7828
  convert_dirname(buff,buff,NullS);
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  (void) my_load_path(language,language,buff);

  /* If --character-sets-dir isn't given, use shared library dir */
  if (charsets_dir != mysql_charsets_dir)
  {
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    strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff,
	     CHARSET_DIR, NullS);
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7836
  }
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7837
  (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff);
7838
  convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS);
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7839
  charsets_dir=mysql_charsets_dir;
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7840

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7841
  if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir))
7842
    exit(1);
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SCRUM  
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7843
#ifdef HAVE_REPLICATION
7844 7845
  if (!slave_load_tmpdir)
  {
7846 7847
    if (!(slave_load_tmpdir = (char*) my_strdup(mysql_tmpdir, MYF(MY_FAE))))
      exit(1);
7848
  }
7849
#endif /* HAVE_REPLICATION */
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  /*
    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));
  }
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7860 7861 7862
}


7863 7864 7865 7866
/*
  Return a bitfield from a string of substrings separated by ','
  returns ~(ulong) 0 on error.
*/
7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880

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;
  pos=(my_string) x;
7881 7882 7883
  while (*pos == ' ') pos++;
  found_end= *pos == 0;
  while (!found_end)
7884 7885 7886 7887
  {
    if (!*(end=strcend(pos,',')))		/* Let end point at fieldend */
    {
      while (end > pos && end[-1] == ' ')
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7888
	end--;					/* Skip end-space */
7889 7890 7891 7892 7893 7894 7895 7896
      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)
      {
7897 7898
	if (my_toupper(mysqld_charset,*i++) !=
            my_toupper(mysqld_charset,*j++))
7899
	  goto skip;
7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910
      }
      found_int=bit;
      if (! *i)
      {
	found_count=1;
	break;
      }
      else if (j != pos)			// Half field found
      {
	found_count++;				// Could be one of two values
      }
7911
skip: ;
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    }
    if (found_count != 1)
      DBUG_RETURN(~(ulong) 0);				// No unique value
    found|=found_int;
    pos=end+1;
7917
  }
7918 7919 7920 7921 7922 7923

  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

  SYNOPSIS
    test_if_case_sensitive()
    dir_name			Directory to test

  RETURN
    -1  Don't know (Test failed)
    0   File system is case sensitive
    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;
7943
  DBUG_ENTER("test_if_case_insensitive");
7944 7945 7946 7947 7948 7949 7950 7951

  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)
  {
7952
    sql_print_warning("Can't create test file %s", buff);
7953
    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));
7959 7960
  DBUG_PRINT("exit", ("result: %d", result));
  DBUG_RETURN(result);
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}


/* Create file to store pid number */

7966 7967
#ifndef EMBEDDED_LIBRARY

7968 7969 7970 7971 7972 7973
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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7974
    char buff[21], *end;
7975
    end= int10_to_str((long) getpid(), buff, 10);
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7976
    *end++= '\n';
7977 7978 7979 7980 7981
    if (!my_write(file, (byte*) buff, (uint) (end-buff), MYF(MY_WME | MY_NABP)))
    {
      (void) my_close(file, MYF(0));
      return;
    }
7982 7983
    (void) my_close(file, MYF(0));
  }
7984
  sql_perror("Can't start server: can't create PID file");
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7985
  exit(1);
7986
}
7987
#endif /* EMBEDDED_LIBRARY */
7988

7989 7990 7991 7992 7993
/* Clear most status variables */
void refresh_status(THD *thd)
{
  pthread_mutex_lock(&LOCK_status);

7994
  /* Add thread's status variabes to global status */
7995
  add_to_status(&global_status_var, &thd->status_var);
7996 7997

  /* Reset thread's status variables */
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  bzero((char*) &thd->status_var, sizeof(thd->status_var));

8000
  /* Reset some global variables */
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  for (struct show_var_st *ptr=status_vars; ptr->name; ptr++)
  {
    if (ptr->type == SHOW_LONG)
      *(ulong*) ptr->value= 0;
  }
8006

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  /* Reset the counters of all key caches (default and named). */
  process_key_caches(reset_key_cache_counters);
  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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/*****************************************************************************
  Instantiate have_xyx for missing storage engines
*****************************************************************************/
#undef have_berkeley_db
#undef have_innodb
#undef have_ndbcluster
#undef have_example_db
#undef have_archive_db
#undef have_csv_db
#undef have_federated_db
#undef have_partition_db
#undef have_blackhole_db

SHOW_COMP_OPTION have_berkeley_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_innodb= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_ndbcluster= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_example_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_archive_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_csv_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_federated_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_partition_db= SHOW_OPTION_NO;
SHOW_COMP_OPTION have_blackhole_db= SHOW_OPTION_NO;


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8047
/*****************************************************************************
8048
  Instantiate templates
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8049 8050
*****************************************************************************/

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8051
#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
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8052 8053 8054 8055
/* Used templates */
template class I_List<THD>;
template class I_List_iterator<THD>;
template class I_List<i_string>;
8056
template class I_List<i_string_pair>;
8057
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