mysqld.cc 273 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
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
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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 "rpl_filter.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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#include "ha_myisam.h"
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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#define OPT_INNODB_DEFAULT 1
#else
#define OPT_INNODB_DEFAULT 0
#endif
#define OPT_BDB_DEFAULT 0
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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#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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#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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/* 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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#ifdef HAVE_LIBWRAP
#include <tcpd.h>
#include <syslog.h>
#ifdef NEED_SYS_SYSLOG_H
#include <sys/syslog.h>
#endif /* NEED_SYS_SYSLOG_H */
int allow_severity = LOG_INFO;
int deny_severity = LOG_WARNING;
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#endif /* HAVE_LIBWRAP */

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#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#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
  */

inline void reset_floating_point_exceptions()
{
  /* 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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}
#else
#define reset_floating_point_exceptions()
#endif /* __FreeBSD__ && HAVE_IEEEFP_H */

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} /* cplusplus */

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#if defined(HAVE_LINUXTHREADS)
#define THR_KILL_SIGNAL SIGINT
#else
#define THR_KILL_SIGNAL SIGUSR2		// Can't use this with LinuxThreads
#endif
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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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/* 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",
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  "TRADITIONAL", "NO_AUTO_CREATE_USER", "HIGH_NOT_PRECEDENCE",
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  "NO_ENGINE_SUBSTITUTION",
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  NullS
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};
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static const unsigned int sql_mode_names_len[]=
{
  /*REAL_AS_FLOAT*/               13,
  /*PIPES_AS_CONCAT*/             15,
  /*ANSI_QUOTES*/                 11,
  /*IGNORE_SPACE*/                12,
  /*?*/                           1,
  /*ONLY_FULL_GROUP_BY*/          18,
  /*NO_UNSIGNED_SUBTRACTION*/     23,
  /*NO_DIR_IN_CREATE*/            16,
  /*POSTGRESQL*/                  10,
  /*ORACLE*/                      6,
  /*MSSQL*/                       5,
  /*DB2*/                         3,
  /*MAXDB*/                       5,
  /*NO_KEY_OPTIONS*/              14,
  /*NO_TABLE_OPTIONS*/            16,
  /*NO_FIELD_OPTIONS*/            16,
  /*MYSQL323*/                    8,
  /*MYSQL40*/                     7,
  /*ANSI*/                        4,
  /*NO_AUTO_VALUE_ON_ZERO*/       21,
  /*NO_BACKSLASH_ESCAPES*/        20,
  /*STRICT_TRANS_TABLES*/         19,
  /*STRICT_ALL_TABLES*/           17,
  /*NO_ZERO_IN_DATE*/             15,
  /*NO_ZERO_DATE*/                12,
  /*ALLOW_INVALID_DATES*/         19,
  /*ERROR_FOR_DIVISION_BY_ZERO*/  26,
  /*TRADITIONAL*/                 11,
  /*NO_AUTO_CREATE_USER*/         19,
  /*HIGH_NOT_PRECEDENCE*/         19,
  /*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 };
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static const char *tc_heuristic_recover_names[]=
{
  "COMMIT", "ROLLBACK", NullS
};
static TYPELIB tc_heuristic_recover_typelib=
{
  array_elements(tc_heuristic_recover_names)-1,"",
  tc_heuristic_recover_names, NULL
};
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const char *first_keyword= "first", *binary_keyword= "BINARY";
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const char *my_localhost= "localhost", *delayed_user= "DELAYED";
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#if SIZEOF_OFF_T > 4 && defined(BIG_TABLES)
#define GET_HA_ROWS GET_ULL
#else
#define GET_HA_ROWS GET_ULONG
#endif

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bool opt_large_files= sizeof(my_off_t) > 4;
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/*
  Used with --help for detailed option
*/
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static my_bool opt_help= 0, opt_verbose= 0;
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arg_cmp_func Arg_comparator::comparator_matrix[5][2] =
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{{&Arg_comparator::compare_string,     &Arg_comparator::compare_e_string},
 {&Arg_comparator::compare_real,       &Arg_comparator::compare_e_real},
 {&Arg_comparator::compare_int_signed, &Arg_comparator::compare_e_int},
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 {&Arg_comparator::compare_row,        &Arg_comparator::compare_e_row},
 {&Arg_comparator::compare_decimal,    &Arg_comparator::compare_e_decimal}};
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/* static variables */

static bool lower_case_table_names_used= 0;
static bool volatile select_thread_in_use, signal_thread_in_use;
static bool volatile ready_to_exit;
static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0;
static my_bool opt_bdb, opt_isam, opt_ndbcluster;
static my_bool opt_short_log_format= 0;
static my_bool opt_log_queries_not_using_indexes= 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;
static char *my_bind_addr_str;
static char *default_collation_name;
static char mysql_data_home_buff[2];
static struct passwd *user_info;
static I_List<THD> thread_cache;

static pthread_cond_t COND_thread_cache, COND_flush_thread_cache;

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#ifdef WITH_BERKELEY_STORAGE_ENGINE
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static my_bool opt_sync_bdb_logs;
#endif
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/* Global variables */
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bool opt_log, opt_update_log, opt_bin_log, opt_slow_log;
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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;
my_bool locked_in_memory;
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bool opt_using_transactions, using_update_log;
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bool volatile abort_loop;
bool volatile shutdown_in_progress, 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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#ifdef WITH_INNOBASE_STORAGE_ENGINE
extern struct show_var_st innodb_status_variables[];
extern uint innobase_init_flags, innobase_lock_type;
extern uint innobase_flush_log_at_trx_commit;
extern ulong innobase_cache_size, innobase_fast_shutdown;
extern ulong innobase_large_page_size;
extern char *innobase_home, *innobase_tmpdir, *innobase_logdir;
extern long innobase_lock_scan_time;
extern long innobase_mirrored_log_groups, innobase_log_files_in_group;
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extern longlong innobase_log_file_size;
extern long innobase_log_buffer_size;
extern longlong innobase_buffer_pool_size;
extern long innobase_additional_mem_pool_size;
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extern long innobase_buffer_pool_awe_mem_mb;
extern long innobase_file_io_threads, innobase_lock_wait_timeout;
extern long innobase_force_recovery;
extern long innobase_open_files;
extern char *innobase_data_home_dir, *innobase_data_file_path;
extern char *innobase_log_group_home_dir, *innobase_log_arch_dir;
extern char *innobase_unix_file_flush_method;
/* The following variables have to be my_bool for SHOW VARIABLES to work */
extern my_bool innobase_log_archive,
               innobase_use_doublewrite,
               innobase_use_checksums,
               innobase_use_large_pages,
               innobase_use_native_aio,
               innobase_file_per_table, innobase_locks_unsafe_for_binlog,
               innobase_create_status_file;
extern my_bool innobase_very_fast_shutdown; /* set this to 1 just before
                                            calling innobase_end() if you want
                                            InnoDB to shut down without
                                            flushing the buffer pool: this
                                            is equivalent to a 'crash' */
extern "C" {
extern ulong srv_max_buf_pool_modified_pct;
extern ulong srv_max_purge_lag;
extern ulong srv_auto_extend_increment;
extern ulong srv_n_spin_wait_rounds;
extern ulong srv_n_free_tickets_to_enter;
extern ulong srv_thread_sleep_delay;
extern ulong srv_thread_concurrency;
extern ulong srv_commit_concurrency;
}
#endif
#ifdef WITH_BERKELEY_STORAGE_ENGINE
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#ifndef HAVE_U_INT32_T
typedef unsigned int  u_int32_t;
#endif
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extern const u_int32_t bdb_DB_TXN_NOSYNC, bdb_DB_RECOVER, bdb_DB_PRIVATE;
extern bool berkeley_shared_data;
extern u_int32_t berkeley_init_flags,berkeley_env_flags, berkeley_lock_type,
                 berkeley_lock_types[];
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extern ulong berkeley_max_lock, berkeley_log_buffer_size;
extern ulonglong berkeley_cache_size;
extern ulong berkeley_region_size, berkeley_cache_parts;
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extern char *berkeley_home, *berkeley_tmpdir, *berkeley_logdir;
extern long berkeley_lock_scan_time;
extern TYPELIB berkeley_lock_typelib;
#endif
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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const char *opt_ndbcluster_connectstring= 0;
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const char *opt_ndb_connectstring= 0;
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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extern struct show_var_st ndb_status_variables[];
extern const char *ndb_distribution_names[];
extern TYPELIB ndb_distribution_typelib;
extern const char *opt_ndb_distribution;
extern enum ndb_distribution opt_ndb_distribution_id;
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#endif
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my_bool opt_readonly, use_temp_pool, relay_log_purge;
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my_bool opt_sync_frm, opt_allow_suspicious_udfs;
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my_bool opt_secure_auth= 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;
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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 delay_key_write_options, protocol_version;
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uint lower_case_table_names;
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uint tc_heuristic_recover= 0;
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uint volatile thread_count, thread_running;
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ulonglong thd_startup_options;
ulong back_log, connect_timeout, concurrency, server_id;
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ulong table_cache_size, table_def_size;
ulong 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 query_id;
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ulong aborted_threads, aborted_connects;
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ulong delayed_insert_timeout, delayed_insert_limit, delayed_queue_size;
ulong delayed_insert_threads, delayed_insert_writes, delayed_rows_in_use;
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ulong delayed_insert_errors,flush_time;
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ulong specialflag=0;
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ulong binlog_cache_use= 0, binlog_cache_disk_use= 0;
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ulong max_connections, max_connect_errors;
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uint  max_user_connections= 0;
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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;

double log_10[32];			/* 10 potences */
time_t 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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     def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
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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];
489

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char *mysql_data_home= mysql_real_data_home;
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char server_version[SERVER_VERSION_LENGTH];
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char *mysqld_unix_port, *opt_mysql_tmpdir;
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const char **errmesg;			/* Error messages */
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const char *myisam_recover_options_str="OFF";
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const char *myisam_stats_method_str="nulls_unequal";
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/* name of reference on left espression in rewritten IN subquery */
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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my_decimal decimal_zero;
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/* classes for comparation parsing/processing */
Eq_creator eq_creator;
Ne_creator ne_creator;
Gt_creator gt_creator;
Lt_creator lt_creator;
Ge_creator ge_creator;
Le_creator le_creator;

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

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SHOW_COMP_OPTION have_raid, have_openssl, have_symlink, have_query_cache;
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SHOW_COMP_OPTION have_geometry, have_rtree_keys;
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SHOW_COMP_OPTION have_crypt, have_compress;

/* 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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#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;
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pthread_t signal_thread;
pthread_attr_t connection_attrib;
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pthread_mutex_t  LOCK_server_started;
pthread_cond_t  COND_server_started;

int mysqld_server_started= 0;
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File_parser_dummy_hook file_parser_dummy_hook;

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

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

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


/* Function declarations */

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static void start_signal_handler(void);
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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 void close_server_sock();
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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 void clean_up_mutexes(void);
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static void wait_for_signal_thread_to_end(void);
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static int test_if_case_insensitive(const char *dir_name);
static void create_pid_file();
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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
    if (pthread_kill(select_thread,THR_CLIENT_ALARM))
      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)
    {
      (void) shutdown(ip_sock,2);
      (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)
  {
    (void) shutdown(unix_sock,2);
    (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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#endif /*EMBEDDED_LIBRARY*/
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static void close_server_sock()
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{
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#ifdef HAVE_CLOSE_SERVER_SOCK
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  DBUG_ENTER("close_server_sock");
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  my_socket tmp_sock;
  tmp_sock=ip_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
    ip_sock=INVALID_SOCKET;
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    DBUG_PRINT("info",("calling shutdown on TCP/IP socket"));
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    VOID(shutdown(tmp_sock,2));
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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"));
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    VOID(closesocket(tmp_sock));
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#endif
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  }
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  tmp_sock=unix_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
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    unix_sock=INVALID_SOCKET;
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    DBUG_PRINT("info",("calling shutdown on unix socket"));
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    VOID(shutdown(tmp_sock,2));
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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"));
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    VOID(closesocket(tmp_sock));
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#endif
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    VOID(unlink(mysqld_unix_port));
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  }
  DBUG_VOID_RETURN;
#endif
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}
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void kill_mysql(void)
{
  DBUG_ENTER("kill_mysql");

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#ifdef SIGNALS_DONT_BREAK_READ
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  abort_loop=1;					// Break connection loops
  close_server_sock();				// Force accept to wake up
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#endif
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#if defined(__WIN__)
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#if !defined(EMBEDDED_LIBRARY)
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  {
    if (!SetEvent(hEventShutdown))
    {
      DBUG_PRINT("error",("Got error: %ld from SetEvent",GetLastError()));
    }
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    /*
      or:
      HANDLE hEvent=OpenEvent(0, FALSE, "MySqlShutdown");
      SetEvent(hEventShutdown);
      CloseHandle(hEvent);
    */
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  }
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#endif
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#elif defined(OS2)
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  pthread_cond_signal(&eventShutdown);		// post semaphore
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#elif defined(HAVE_PTHREAD_KILL)
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  if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL))
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  {
    DBUG_PRINT("error",("Got error %d from pthread_kill",errno)); /* purecov: inspected */
  }
#elif !defined(SIGNALS_DONT_BREAK_READ)
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  kill(current_pid, MYSQL_KILL_SIGNAL);
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#endif
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  DBUG_PRINT("quit",("After pthread_kill"));
  shutdown_in_progress=1;			// Safety if kill didn't work
#ifdef SIGNALS_DONT_BREAK_READ
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  if (!kill_in_progress)
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  {
    pthread_t tmp;
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    abort_loop=1;
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    if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
			   (void*) 0))
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      sql_print_error("Can't create thread to kill server");
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  }
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#endif
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  DBUG_VOID_RETURN;
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}

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

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#if defined(OS2) || defined(__NETWARE__)
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extern "C" void kill_server(int sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_VOID_RETURN
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#elif !defined(__WIN__)
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static void *kill_server(void *sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_RETURN(0)
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#else
static void __cdecl kill_server(int sig_ptr)
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#define RETURN_FROM_KILL_SERVER DBUG_VOID_RETURN
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#endif
{
  DBUG_ENTER("kill_server");
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#ifndef EMBEDDED_LIBRARY
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  int sig=(int) (long) sig_ptr;			// This is passed a int
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  // if there is a signal during the kill in progress, ignore the other
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  if (kill_in_progress)				// Safety
    RETURN_FROM_KILL_SERVER;
  kill_in_progress=TRUE;
  abort_loop=1;					// This should be set
990
  my_sigset(sig,SIG_IGN);
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  if (sig == MYSQL_KILL_SIGNAL || sig == 0)
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    sql_print_information(ER(ER_NORMAL_SHUTDOWN),my_progname);
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  else
    sql_print_error(ER(ER_GOT_SIGNAL),my_progname,sig); /* purecov: inspected */

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#if defined(HAVE_SMEM) && defined(__WIN__)    
  /*    
   Send event to smem_event_connect_request for aborting    
   */    
  if (!SetEvent(smem_event_connect_request))    
  {      
	  DBUG_PRINT("error",
		("Got error: %ld from SetEvent of smem_event_connect_request",
		 GetLastError()));    
  }
#endif  
  
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#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();
  if (sig != MYSQL_KILL_SIGNAL && sig != 0)
    unireg_abort(1);				/* purecov: inspected */
  else
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    unireg_end();
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#ifdef __NETWARE__
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  if (!event_flag)
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    pthread_join(select_thread, NULL);		// wait for main thread
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#endif /* __NETWARE__ */
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  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))
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pthread_handler_t kill_server_thread(void *arg __attribute__((unused)))
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{
  my_thread_init();				// Initialize new thread
  kill_server(0);
  my_thread_end();				// Normally never reached
  return 0;
}
#endif

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

1056 1057
/*
  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
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void unireg_end(void)
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{
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  clean_up(1);
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  my_thread_end();
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#if defined(SIGNALS_DONT_BREAK_READ) && !defined(__NETWARE__)
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  exit(0);
#else
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  pthread_exit(0);				// Exit is in main thread
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#endif
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}

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extern "C" void unireg_abort(int exit_code)
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{
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  DBUG_ENTER("unireg_abort");
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  if (exit_code)
    sql_print_error("Aborting\n");
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  clean_up(exit_code || !opt_bootstrap); /* purecov: inspected */
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  DBUG_PRINT("quit",("done with cleanup in unireg_abort"));
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  wait_for_signal_thread_to_end();
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  clean_up_mutexes();
  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
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  exit(exit_code); /* purecov: inspected */
}
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#endif
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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);
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#endif
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  my_tz_free();
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  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
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  query_cache_destroy();
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  table_cache_free();
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  table_def_free();
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  hostname_cache_free();
  item_user_lock_free();
  lex_free();				/* Free some memory */
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  set_var_free();
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  free_charsets();
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  if (!opt_noacl)
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  {
#ifdef HAVE_DLOPEN
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    udf_free();
#endif
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    plugin_free();
  }
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  (void) ha_panic(HA_PANIC_CLOSE);	/* close all tables and logs */
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  if (tc_log)
    tc_log->close();
1135
  xid_cache_free();
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  delete_elements(&key_caches, (void (*)(const char*, gptr)) free_key_cache);
  multi_keycache_free();
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  end_thr_alarm(1);			/* Free allocated memory */
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#ifdef USE_RAID
  end_raid();
#endif
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  my_free_open_file_info();
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  my_free((char*) global_system_variables.date_format,
	  MYF(MY_ALLOW_ZERO_PTR));
  my_free((char*) global_system_variables.time_format,
	  MYF(MY_ALLOW_ZERO_PTR));
  my_free((char*) global_system_variables.datetime_format,
	  MYF(MY_ALLOW_ZERO_PTR));
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  if (defaults_argv)
    free_defaults(defaults_argv);
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  my_free(sys_init_connect.value, MYF(MY_ALLOW_ZERO_PTR));
  my_free(sys_init_slave.value, MYF(MY_ALLOW_ZERO_PTR));
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  free_tmpdir(&mysql_tmpdir_list);
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#ifdef HAVE_REPLICATION
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  my_free(slave_load_tmpdir,MYF(MY_ALLOW_ZERO_PTR));
1156
#endif
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  x_free(opt_bin_logname);
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  x_free(opt_relay_logname);
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  bitmap_free(&temp_pool);
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  free_max_user_conn();
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#ifdef HAVE_REPLICATION
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  end_slave_list();
1163
#endif
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  delete binlog_filter;
  delete rpl_filter;
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#ifdef HAVE_OPENSSL
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  if (ssl_acceptor_fd)
    my_free((gptr) ssl_acceptor_fd, MYF(MY_ALLOW_ZERO_PTR));
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#endif /* HAVE_OPENSSL */
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#ifdef USE_REGEX
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  my_regex_end();
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#endif
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  if (print_message && errmesg)
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    sql_print_information(ER(ER_SHUTDOWN_COMPLETE),my_progname);
1176
#if !defined(EMBEDDED_LIBRARY)
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  if (!opt_bootstrap)
    (void) my_delete(pidfile_name,MYF(0));	// This may not always exist
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#endif
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  finish_client_errs();
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  my_free((gptr) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST),
          MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR));
1183
  DBUG_PRINT("quit", ("Error messages freed"));
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  /* Tell main we are ready */
  (void) pthread_mutex_lock(&LOCK_thread_count);
1186
  DBUG_PRINT("quit", ("got thread count lock"));
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  ready_to_exit=1;
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  /* do the broadcast inside the lock to ensure that my_end() is not called */
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  (void) pthread_cond_broadcast(&COND_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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  /*
    The following lines may never be executed as the main thread may have
    killed us
  */
1195
  DBUG_PRINT("quit", ("done with cleanup"));
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} /* clean_up */


1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221
/*
  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++)
  {
    if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL))
      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);
1226
  (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);
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#ifndef HAVE_YASSL
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  for (int i= 0; i < CRYPTO_num_locks(); ++i)
    (void) rwlock_destroy(&openssl_stdlocks[i].lock);
  OPENSSL_free(openssl_stdlocks);
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#endif
#endif
1248
#ifdef HAVE_REPLICATION
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  (void) pthread_mutex_destroy(&LOCK_rpl_status);
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  (void) pthread_cond_destroy(&COND_rpl_status);
#endif
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  (void) pthread_mutex_destroy(&LOCK_active_mi);
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  (void) rwlock_destroy(&LOCK_sys_init_connect);
  (void) rwlock_destroy(&LOCK_sys_init_slave);
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  (void) pthread_mutex_destroy(&LOCK_global_system_variables);
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  (void) pthread_mutex_destroy(&LOCK_global_read_lock);
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  (void) pthread_mutex_destroy(&LOCK_uuid_generator);
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  (void) pthread_cond_destroy(&COND_thread_count);
  (void) pthread_cond_destroy(&COND_refresh);
  (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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/****************************************************************************
** Init IP and UNIX socket
****************************************************************************/

static void set_ports()
{
  char	*env;
1272
  if (!mysqld_port && !opt_disable_networking)
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  {					// Get port if not from commandline
    struct  servent *serv_ptr;
1275 1276 1277
    mysqld_port= MYSQL_PORT;
    if ((serv_ptr= getservbyname("mysql", "tcp")))
      mysqld_port= ntohs((u_short) serv_ptr->s_port); /* purecov: inspected */
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    if ((env = getenv("MYSQL_TCP_PORT")))
1279
      mysqld_port= (uint) atoi(env);		/* purecov: inspected */
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  }
1281
  if (!mysqld_unix_port)
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  {
#ifdef __WIN__
1284
    mysqld_unix_port= (char*) MYSQL_NAMEDPIPE;
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#else
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    mysqld_unix_port= (char*) MYSQL_UNIX_ADDR;
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#endif
    if ((env = getenv("MYSQL_UNIX_PORT")))
1289
      mysqld_unix_port= env;			/* purecov: inspected */
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  }
}

1293
#ifndef EMBEDDED_LIBRARY
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/* Change to run as another user if started with --user */

1296
static struct passwd *check_user(const char *user)
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{
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#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
1299
  struct passwd *user_info;
1300
  uid_t user_id= geteuid();
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1302
  // Don't bother if we aren't superuser
1303
  if (user_id)
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  {
    if (user)
1306
    {
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      // Don't give a warning, if real user is same as given with --user
      user_info= getpwnam(user);
1309 1310
      if ((!user_info || user_id != user_info->pw_uid) &&
	  global_system_variables.log_warnings)
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        sql_print_warning(
                    "One can only use the --user switch if running as root\n");
1313
    }
1314
    return NULL;
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  }
1316
  if (!user)
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  {
    if (!opt_bootstrap)
    {
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      sql_print_error("Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n");
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      unireg_abort(1);
    }
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    return NULL;
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  }
  if (!strcmp(user,"root"))
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    return NULL;                        // Avoid problem with dynamic libraries
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1328
  if (!(user_info= getpwnam(user)))
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  {
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    // Allow a numeric uid to be used
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    const char *pos;
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    for (pos= user; my_isdigit(mysqld_charset,*pos); pos++) ;
    if (*pos)                                   // Not numeric id
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      goto err;
    if (!(user_info= getpwuid(atoi(user))))
      goto err;
    else
      return user_info;
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  }
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  else
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    return user_info;

err:
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  sql_print_error("Fatal error: Can't change to run as user '%s' ;  Please check that the user exists!\n",user);
1345
  unireg_abort(1);
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#endif
  return NULL;
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}

static void set_user(const char *user, struct passwd *user_info)
{
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
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  DBUG_ASSERT(user_info != 0);
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#ifdef HAVE_INITGROUPS
1355 1356 1357 1358 1359 1360 1361
  /*
    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;
1362
  initgroups((char*) user, user_info->pw_gid);
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  calling_initgroups= FALSE;
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#endif
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  if (setgid(user_info->pw_gid) == -1)
  {
    sql_perror("setgid");
    unireg_abort(1);
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  }
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  if (setuid(user_info->pw_uid) == -1)
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  {
    sql_perror("setuid");
    unireg_abort(1);
  }
#endif
}

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static void set_effective_user(struct passwd *user_info)
{
#if !defined(__WIN__) && !defined(OS2) && !defined(__NETWARE__)
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  DBUG_ASSERT(user_info != 0);
1383
  if (setregid((gid_t)-1, user_info->pw_gid) == -1)
1384
  {
1385
    sql_perror("setregid");
1386
    unireg_abort(1);
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  }
1388
  if (setreuid((uid_t)-1, user_info->pw_uid) == -1)
1389
  {
1390
    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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#if !defined(__WIN__) && !defined(__EMX__) && !defined(OS2) && !defined(__NETWARE__)
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  if (chroot(path) == -1)
  {
    sql_perror("chroot");
    unireg_abort(1);
  }
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  my_setwd("/", MYF(0));
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#endif
}

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static void network_init(void)
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{
  struct sockaddr_in	IPaddr;
#ifdef HAVE_SYS_UN_H
  struct sockaddr_un	UNIXaddr;
#endif
  int	arg=1;
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  DBUG_ENTER("network_init");
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  set_ports();

1422
  if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap)
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  {
1424
    DBUG_PRINT("general",("IP Socket is %d",mysqld_port));
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    ip_sock = socket(AF_INET, SOCK_STREAM, 0);
    if (ip_sock == INVALID_SOCKET)
    {
      DBUG_PRINT("error",("Got error: %d from socket()",socket_errno));
      sql_perror(ER(ER_IPSOCK_ERROR));		/* purecov: tested */
      unireg_abort(1);				/* purecov: tested */
    }
    bzero((char*) &IPaddr, sizeof(IPaddr));
    IPaddr.sin_family = AF_INET;
    IPaddr.sin_addr.s_addr = my_bind_addr;
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    IPaddr.sin_port = (unsigned short) htons((unsigned short) mysqld_port);
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#ifndef __WIN__
    /*
      We should not use SO_REUSEADDR on windows as this would enable a
      user to open two mysqld servers with the same TCP/IP port.
    */
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    (void) setsockopt(ip_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,sizeof(arg));
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#endif /* __WIN__ */
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    if (bind(ip_sock, my_reinterpret_cast(struct sockaddr *) (&IPaddr),
	     sizeof(IPaddr)) < 0)
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    {
      DBUG_PRINT("error",("Got error: %d from bind",socket_errno));
1448
      sql_perror("Can't start server: Bind on TCP/IP port");
1449
      sql_print_error("Do you already have another mysqld server running on port: %d ?",mysqld_port);
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      unireg_abort(1);
    }
1452
    if (listen(ip_sock,(int) back_log) < 0)
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    {
1454
      sql_perror("Can't start server: listen() on TCP/IP port");
1455
      sql_print_error("listen() on TCP/IP failed with error %d",
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		      socket_errno);
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      unireg_abort(1);
    }
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  }
1460

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#ifdef __NT__
  /* create named pipe */
1463
  if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap &&
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      opt_enable_named_pipe)
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  {
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    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));
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    if (!InitializeSecurityDescriptor(&sdPipeDescriptor,
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				      SECURITY_DESCRIPTOR_REVISION))
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    {
      sql_perror("Can't start server : Initialize security descriptor");
      unireg_abort(1);
    }
    if (!SetSecurityDescriptorDacl(&sdPipeDescriptor, TRUE, NULL, FALSE))
    {
      sql_perror("Can't start server : Set security descriptor");
      unireg_abort(1);
    }
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    saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES);
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    saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor;
    saPipeSecurity.bInheritHandle = FALSE;
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    if ((hPipe= CreateNamedPipe(pipe_name,
				PIPE_ACCESS_DUPLEX,
				PIPE_TYPE_BYTE |
				PIPE_READMODE_BYTE |
				PIPE_WAIT,
				PIPE_UNLIMITED_INSTANCES,
				(int) global_system_variables.net_buffer_length,
				(int) global_system_variables.net_buffer_length,
				NMPWAIT_USE_DEFAULT_WAIT,
				&saPipeSecurity)) == INVALID_HANDLE_VALUE)
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      {
	LPVOID lpMsgBuf;
	int error=GetLastError();
	FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
		      FORMAT_MESSAGE_FROM_SYSTEM,
		      NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		      (LPTSTR) &lpMsgBuf, 0, NULL );
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	MessageBox(NULL, (LPTSTR) lpMsgBuf, "Error from CreateNamedPipe",
		    MB_OK|MB_ICONINFORMATION);
	LocalFree(lpMsgBuf);
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	unireg_abort(1);
      }
  }
#endif

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

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#endif /*!EMBEDDED_LIBRARY*/
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void yyerror(const char *s)
{
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  THD *thd=current_thd;
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  char *yytext= (char*) thd->lex->tok_start;
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  /* "parse error" changed into "syntax error" between bison 1.75 and 1.875 */
  if (strcmp(s,"parse error") == 0 || strcmp(s,"syntax error") == 0)
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    s=ER(ER_SYNTAX_ERROR);
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  my_printf_error(ER_PARSE_ERROR,  ER(ER_PARSE_ERROR), MYF(0), s,
                  (yytext ? (char*) yytext : ""),
                  thd->lex->yylineno);
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}

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#ifndef EMBEDDED_LIBRARY
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/*
  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
*/

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void close_connection(THD *thd, uint errcode, bool lock)
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{
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  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 */
    DBUG_PRINT("info", ("Adding thread to cache"))
    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;
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      (void) thd->store_globals();
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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;
    }
  }

  DBUG_PRINT("info", ("sending a broadcast"))

  /* 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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  (void) pthread_cond_broadcast(&COND_thread_count);
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  DBUG_PRINT("info", ("unlocked thread_count mutex"))
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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;
}


/* Start a cached thread. LOCK_thread_count is locked on entry */

static void start_cached_thread(THD *thd)
{
  thread_cache.append(thd);
  wake_thread++;
  thread_count++;
  pthread_cond_signal(&COND_thread_cache);
}


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__) || defined(OS2)
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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++)
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    signal(signals[i], kill_server) ;
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#if defined(__WIN__)
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  signal(SIGBREAK,SIG_IGN);	//ignore SIGBREAK for NT
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#else
  signal(SIGBREAK, kill_server);
#endif
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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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1796
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
*/

1813
static void registerwithneb()
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{

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

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

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

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

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


/*
  Callback for NSS Volume Deactivation event
*/
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ulong neb_event_callback(struct EventBlock *eblock)
{
  EventChangeVolStateEnter_s *voldata;
1869 1870
  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);
  if ((status= zOpen(rootKey, zNSS_TASK, zNSPACE_LONG|zMODE_UTF8, 
                     (BYTE *) path, zRR_READ_ACCESS, &fileKey)) != zOK)
  {
    consoleprintf("\nGetNSSVolumeProperties - Failed to get file, status: %d\n.", (int) status);
    goto exit;
  }

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

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


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

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

1963
}
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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)
{
1988
 // 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)
{
1996
  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();
}
2015 2016

static void start_signal_handler(void)
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{}
2018

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static void check_data_home(const char *path)
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{}
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#else /* if ! __WIN__ && ! __EMX__ */
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#ifdef HAVE_LINUXTHREADS
#define UNSAFE_DEFAULT_LINUX_THREADS 200
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#endif
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extern "C" sig_handler handle_segfault(int sig)
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{
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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
  */
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  if (segfaulted)
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  {
    fprintf(stderr, "Fatal signal %d while backtracing\n", sig);
    exit(1);
  }
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  segfaulted = 1;
2044
  fprintf(stderr,"\
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mysqld got signal %d;\n\
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This could be because you hit a bug. It is also possible that this binary\n\
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or one of the libraries it was linked against is corrupt, improperly built,\n\
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or misconfigured. This error can also be caused by malfunctioning hardware.\n",
	  sig);
  fprintf(stderr, "\
We will try our best to scrape up some info that will hopefully help diagnose\n\
the problem, but since we have already crashed, something is definitely wrong\n\
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and this may fail.\n\n");
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  fprintf(stderr, "key_buffer_size=%lu\n", 
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          (ulong) dflt_key_cache->key_cache_mem_size);
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  fprintf(stderr, "read_buffer_size=%ld\n", (long) global_system_variables.read_buff_size);
  fprintf(stderr, "max_used_connections=%lu\n", max_used_connections);
  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 +
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		     (global_system_variables.read_buff_size +
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		      global_system_variables.sortbuff_size) *
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		     max_connections)/ 1024);
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  fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n");
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#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://www.mysql.com/doc/en/Linux.html\n\n",
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	    thread_count);
  }
#endif /* HAVE_LINUXTHREADS */
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#ifdef HAVE_STACKTRACE
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  if (!(test_flags & TEST_NO_STACKTRACE))
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  {
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    fprintf(stderr,"thd=%p\n",thd);
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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://www.mysql.com/doc/en/Crashing.html contains\n\
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information that should help you find out what is causing the crash.\n");
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  fflush(stderr);
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#endif /* HAVE_STACKTRACE */

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

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 if (test_flags & TEST_CORE_ON_SIGNAL)
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 {
   fprintf(stderr, "Writing a core file\n");
   fflush(stderr);
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   write_core(sig);
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 }
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 exit(1);
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}

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#ifndef SA_RESETHAND
#define SA_RESETHAND 0
#endif
#ifndef SA_NODEFER
#define SA_NODEFER 0
#endif
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static void init_signals(void)
{
  sigset_t set;
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  struct sigaction sa;
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  DBUG_ENTER("init_signals");

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

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


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


2238
/* This threads handles all signals and alarms */
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/* ARGSUSED */
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pthread_handler_t signal_hand(void *arg __attribute__((unused)))
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{
  sigset_t set;
  int sig;
  my_thread_init();				// Init new thread
  DBUG_ENTER("signal_hand");
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  signal_thread_in_use= 1;

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  /*
    Setup alarm handler
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    This should actually be '+ max_number_of_slaves' instead of +10,
    but the +10 should be quite safe.
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  */
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  init_thr_alarm(max_connections +
		 global_system_variables.max_insert_delayed_threads + 10);
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#if SIGINT != THR_KILL_SIGNAL
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  if (test_flags & TEST_SIGINT)
  {
    (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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#endif
  (void) sigemptyset(&set);			// Setup up SIGINT for debug
#ifdef USE_ONE_SIGNAL_HAND
  (void) sigaddset(&set,THR_SERVER_ALARM);	// For alarms
#endif
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#ifndef IGNORE_SIGHUP_SIGQUIT
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  (void) sigaddset(&set,SIGQUIT);
#if THR_CLIENT_ALARM != SIGHUP
  (void) sigaddset(&set,SIGHUP);
#endif
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#endif
  (void) sigaddset(&set,SIGTERM);
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  (void) sigaddset(&set,SIGTSTP);

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

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#ifdef HAVE_STACK_TRACE_ON_SEGV
  if (opt_do_pstack)
  {
    sprintf(pstack_file_name,"mysqld-%lu-%%d-%%d.backtrace", (ulong)getpid());
    pstack_install_segv_action(pstack_file_name);
  }
#endif /* HAVE_STACK_TRACE_ON_SEGV */
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  /*
    signal to start_signal_handler that we are ready
    This works by waiting for start_signal_handler to free mutex,
    after which we signal it that we are ready.
    At this pointer there is no other threads running, so there
    should not be any other pthread_cond_signal() calls.
  */
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  (void) pthread_mutex_lock(&LOCK_thread_count);
  (void) pthread_mutex_unlock(&LOCK_thread_count);
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  (void) pthread_cond_broadcast(&COND_thread_count);
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  (void) pthread_sigmask(SIG_BLOCK,&set,NULL);
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  for (;;)
  {
    int error;					// Used when debugging
    if (shutdown_in_progress && !abort_loop)
    {
2306
      sig= SIGTERM;
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      error=0;
    }
    else
      while ((error=my_sigwait(&set,&sig)) == EINTR) ;
    if (cleanup_done)
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    {
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      DBUG_PRINT("quit",("signal_handler: calling my_thread_end()"));
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      my_thread_end();
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      signal_thread_in_use= 0;
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      pthread_exit(0);				// Safety
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    }
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    switch (sig) {
    case SIGTERM:
    case SIGQUIT:
    case SIGKILL:
#ifdef EXTRA_DEBUG
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      sql_print_information("Got signal %d to shutdown mysqld",sig);
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#endif
      DBUG_PRINT("info",("Got signal: %d  abort_loop: %d",sig,abort_loop));
      if (!abort_loop)
      {
	abort_loop=1;				// mark abort for threads
#ifdef USE_ONE_SIGNAL_HAND
	pthread_t tmp;
	if (!(opt_specialflag & SPECIAL_NO_PRIOR))
	  my_pthread_attr_setprio(&connection_attrib,INTERRUPT_PRIOR);
	if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
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			   (void*) &sig))
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	  sql_print_error("Can't create thread to kill server");
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#else
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	kill_server((void*) sig);	// MIT THREAD has a alarm thread
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#endif
      }
      break;
    case SIGHUP:
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      if (!abort_loop)
      {
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        bool not_used;
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	mysql_print_status();		// Print some debug info
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	reload_acl_and_cache((THD*) 0,
			     (REFRESH_LOG | REFRESH_TABLES | REFRESH_FAST |
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			      REFRESH_GRANT |
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			      REFRESH_THREADS | REFRESH_HOSTS),
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			     (TABLE_LIST*) 0, &not_used); // Flush logs
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      }
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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
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      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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#endif /*!EMBEDDED_LIBRARY*/
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static void check_data_home(const char *path)
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{}
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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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{
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  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);
  */
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  if ((thd= current_thd))
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  {
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    if (thd->spcont &&
        thd->spcont->find_handler(error, MYSQL_ERROR::WARN_LEVEL_ERROR))
    {
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      if (! thd->spcont->found_handler_here())
        thd->net.report_error= 1; /* Make "select" abort correctly */ 
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      DBUG_RETURN(0);
    }

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

    if (!thd->no_warnings_for_error)
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_ERROR, error, str);
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    /*
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      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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#ifndef EMBEDDED_LIBRARY  /* TODO query cache in embedded library*/
      query_cache_abort(net);
#endif
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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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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));
}


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#ifdef __WIN__

struct utsname
{
  char nodename[FN_REFLEN];
};

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int uname(struct utsname *a)
{
  return -1;
}


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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);
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#if !defined(EMBEDDED_LIBRARY)
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  if (WaitForSingleObject(hEventShutdown,INFINITE)==WAIT_OBJECT_0)
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#endif /* EMBEDDED_LIBRARY */
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     kill_server(MYSQL_KILL_SIGNAL);
  return 0;
}

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int STDCALL handle_kill(ulong ctrl_type)
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{
  if (ctrl_type == CTRL_CLOSE_EVENT ||
      ctrl_type == CTRL_SHUTDOWN_EVENT)
  {
    kill_server(MYSQL_KILL_SIGNAL);
    return TRUE;
  }
  return FALSE;
}
#endif

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#ifdef OS2
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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

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static const char *load_default_groups[]= {
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#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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"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)
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{
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  /* Get command line option */
  const char *str= opt_date_time_formats[format_type];
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  if (!str)					// No specified format
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  {
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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;
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  }
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  if (!(*var_ptr= date_time_format_make(format_type, str, strlen(str))))
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  {
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    fprintf(stderr, "Wrong date/time format specifier: %s\n", str);
    return 1;
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  }
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  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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  max_system_variables.pseudo_thread_id= (ulong)~0;
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  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;
    localtime_r(&start_time,&tm_tmp);
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    strmake(system_time_zone, tzname[tm_tmp.tm_isdst != 0 ? 1 : 0],
            sizeof(system_time_zone)-1);

 }
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#endif
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  /*
    We set SYSTEM time zone as reasonable default and 
    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)-4) < 0)
    strmov(glob_hostname,"mysql");
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  strmake(pidfile_name, glob_hostname, sizeof(pidfile_name)-5);
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  strmov(fn_ext(pidfile_name),".pid");		// Add proper extension
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  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;
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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      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 */
  {
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    uint files, wanted_files;

    wanted_files= 10+(uint) max(max_connections*5,
				 max_connections+table_cache_size*2);
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    set_if_bigger(wanted_files, open_files_limit);
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    files= my_set_max_open_files(wanted_files);

    if (files < wanted_files)
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    {
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      if (!open_files_limit)
      {
	max_connections=	(ulong) min((files-10),max_connections);
	table_cache_size= (ulong) max((files-10-max_connections)/2,64);
	DBUG_PRINT("warning",
		   ("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
		    files, max_connections, table_cache_size));
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	if (global_system_variables.log_warnings)
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	  sql_print_warning("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
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			files, max_connections, table_cache_size);
      }
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      else if (global_system_variables.log_warnings)
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	sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, wanted_files);
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    }
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    open_files_limit= files;
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  }
  unireg_init(opt_specialflag); /* Set up extern variabels */
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  if (init_errmessage())	/* Read error messages from file */
    return 1;
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  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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  if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
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						    MY_CS_PRIMARY,
						    MYF(MY_WME))))
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    return 1;
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  if (default_collation_name)
  {
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    CHARSET_INFO *default_collation;
    default_collation= get_charset_by_name(default_collation_name, MYF(0));
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    if (!default_collation)
    {
      sql_print_error(ER(ER_UNKNOWN_COLLATION), default_collation_name);
      return 1;
    }
    if (!my_charset_same(default_charset_info, default_collation))
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    {
      sql_print_error(ER(ER_COLLATION_CHARSET_MISMATCH),
		      default_collation_name,
		      default_charset_info->csname);
      return 1;
    }
    default_charset_info= default_collation;
  }
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  /* Set collactions that depends on the default collation */
  global_system_variables.collation_server=	 default_charset_info;
  global_system_variables.collation_database=	 default_charset_info;
  global_system_variables.collation_connection=  default_charset_info;
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  global_system_variables.character_set_results= default_charset_info;
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  global_system_variables.character_set_client= default_charset_info;
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  global_system_variables.collation_connection= default_charset_info;
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  sys_init_connect.value_length= 0;
  if ((sys_init_connect.value= opt_init_connect))
    sys_init_connect.value_length= strlen(opt_init_connect);
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  else
    sys_init_connect.value=my_strdup("",MYF(0));
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  sys_init_slave.value_length= 0;
  if ((sys_init_slave.value= opt_init_slave))
    sys_init_slave.value_length= strlen(opt_init_slave);
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  else
    sys_init_slave.value=my_strdup("",MYF(0));
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  if (use_temp_pool && bitmap_init(&temp_pool,0,1024,1))
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    return 1;
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  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));
  if (!lower_case_table_names &&
      (lower_case_file_system=
       (test_if_case_insensitive(mysql_real_data_home) == 1)))
  {
    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;
  }

  /* 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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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);
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  (void) pthread_mutex_init(&LOCK_open, NULL);
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  (void) pthread_mutex_init(&LOCK_thread_count,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_mapped_file,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_status,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_error_log,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_insert,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_status,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_delayed_create,MY_MUTEX_INIT_SLOW);
  (void) pthread_mutex_init(&LOCK_manager,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_crypt,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_bytes_sent,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_bytes_received,MY_MUTEX_INIT_FAST);
  (void) pthread_mutex_init(&LOCK_user_conn, MY_MUTEX_INIT_FAST);
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  (void) pthread_mutex_init(&LOCK_active_mi, MY_MUTEX_INIT_FAST);
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  (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);
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  (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)
    (void) my_rwlock_init(&openssl_stdlocks[i].lock, NULL); 
  CRYPTO_set_dynlock_create_callback(openssl_dynlock_create);
  CRYPTO_set_dynlock_destroy_callback(openssl_dynlock_destroy);
  CRYPTO_set_dynlock_lock_callback(openssl_lock);
  CRYPTO_set_locking_callback(openssl_lock_function);
  CRYPTO_set_id_callback(openssl_id_function);
#endif
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#endif
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  (void) my_rwlock_init(&LOCK_sys_init_connect, NULL);
  (void) my_rwlock_init(&LOCK_sys_init_slave, NULL);
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  (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);
  (void) pthread_cond_init(&COND_thread_cache,NULL);
  (void) pthread_cond_init(&COND_flush_thread_cache,NULL);
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  (void) pthread_cond_init(&COND_manager,NULL);
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#ifdef HAVE_REPLICATION
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  (void) pthread_mutex_init(&LOCK_rpl_status, MY_MUTEX_INIT_FAST);
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  (void) pthread_cond_init(&COND_rpl_status, NULL);
2825
#endif
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  (void) pthread_mutex_init(&LOCK_server_started, MY_MUTEX_INIT_FAST);
  (void) pthread_cond_init(&COND_server_started,NULL);
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  sp_cache_init();
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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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#if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL)
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static unsigned long openssl_id_function()
{ 
  return (unsigned long) pthread_self();
} 


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


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


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


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

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


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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)
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    {
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      opt_use_ssl = 0;
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      have_openssl= SHOW_OPTION_DISABLED;
    }
  }
  else
  {
    have_openssl= 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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static int init_server_components()
{
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  DBUG_ENTER("init_server_components");
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  /*
    We need to call each of these following functions to ensure that
    all things are initialized so that unireg_abort() doesn't fail
  */
  if (table_cache_init() | table_def_init() | hostname_cache_init())
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    unireg_abort(1);
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  query_cache_result_size_limit(query_cache_limit);
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  query_cache_set_min_res_unit(query_cache_min_res_unit);
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  query_cache_init();
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  query_cache_resize(query_cache_size);
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  randominit(&sql_rand,(ulong) start_time,(ulong) start_time/2);
  reset_floating_point_exceptions();
  init_thr_lock();
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#ifdef HAVE_REPLICATION
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  init_slave_list();
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#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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  if (opt_update_log)
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  {
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    /*
      Update log is removed since 5.0. But we still accept the option.
      The idea is if the user already uses the binlog and the update log,
      we completely ignore any option/variable related to the update log, like
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      if the update log did not exist. But if the user uses only the update
      log, then we translate everything into binlog for him (with warnings).
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      Implementation of the above :
      - If mysqld is started with --log-update and --log-bin,
      ignore --log-update (print a warning), push a warning when SQL_LOG_UPDATE
      is used, and turn off --sql-bin-update-same.
      This will completely ignore SQL_LOG_UPDATE
      - If mysqld is started with --log-update only,
      change it to --log-bin (with the filename passed to log-update,
      plus '-bin') (print a warning), push a warning when SQL_LOG_UPDATE is
      used, and turn on --sql-bin-update-same.
      This will translate SQL_LOG_UPDATE to SQL_LOG_BIN.

      Note that we tell the user that --sql-bin-update-same is deprecated and
      does nothing, and we don't take into account if he used this option or
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      not; but internally we give this variable a value to have the behaviour
      we want (i.e. have SQL_LOG_UPDATE influence SQL_LOG_BIN or not).
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      As sql-bin-update-same, log-update and log-bin cannot be changed by the
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      user after starting the server (they are not variables), the user will
      not later interfere with the settings we do here.
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    */
    if (opt_bin_log)
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    {
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      opt_sql_bin_update= 0;
      sql_print_error("The update log is no longer supported by MySQL in \
version 5.0 and above. It is replaced by the binary log.");
    }
    else
    {
      opt_sql_bin_update= 1;
      opt_bin_log= 1;
      if (opt_update_logname)
      {
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        /* as opt_bin_log==0, no need to free opt_bin_logname */
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        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.");
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    }
3016
  }
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  if (opt_log_slave_updates && !opt_bin_log)
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  {
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    sql_print_warning("You need to use --log-bin to make "
                      "--log-slave-updates work.");
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      unireg_abort(1);
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  }
3023

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  if (opt_slow_log)
    mysql_slow_log.open_slow_log(opt_slow_logname);

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#ifdef HAVE_REPLICATION
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  if (opt_log_slave_updates && replicate_same_server_id)
  {
    sql_print_error("\
3031
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
3037 3038

  if (opt_error_log)
3039
  {
3040
    if (!log_error_file_ptr[0])
3041 3042
      fn_format(log_error_file, glob_hostname, mysql_data_home, ".err",
                MY_REPLACE_EXT); /* replace '.<domain>' by '.err', bug#4997 */
3043 3044 3045 3046 3047
    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
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    else
    {
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#ifndef EMBEDDED_LIBRARY
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      if (freopen(log_error_file, "a+", stdout))
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#endif
3053
	stderror_file= freopen(log_error_file, "a+", stderr);
3054
    }
3055
  }
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  if (opt_bin_log)
3058
  {
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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)
3063 3064
    {
      /*
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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.
3070
      */
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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);
3076
    }
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    if (ln == buf)
3078
    {
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      my_free(opt_bin_logname, MYF(MY_ALLOW_ZERO_PTR));
      opt_bin_logname=my_strdup(buf, MYF(0));
3081
    }
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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.
    */
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    using_update_log=1;
3092 3093
  }

3094 3095 3096 3097 3098
  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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    unireg_abort(1);
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  }
3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120

  /*
    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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  if (tc_log->open(opt_bin_logname))
  {
    sql_print_error("Can't init tc log");
    unireg_abort(1);
  }

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  if (ha_recover(0))
  {
    unireg_abort(1);
  }

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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))
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    unireg_abort(1);
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#ifdef HAVE_REPLICATION
  if (opt_bin_log && expire_logs_days)
3143
  {
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    long purge_time= time(0) - expire_logs_days*24*60*60;
    if (purge_time >= 0)
      mysql_bin_log.purge_logs_before_date(purge_time);
3147
  }
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#endif

  if (opt_myisam_log)
    (void) mi_log(1);
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3153 3154
  /* call ha_init_key_cache() on all key caches to init them */
  process_key_caches(&ha_init_key_cache);
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#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY)
3157
  if (locked_in_memory && !getuid())
3158
  {
3159
    if (setreuid((uid_t)-1, 0) == -1)
3160
    {                        // this should never happen
3161
      sql_perror("setreuid");
3162 3163
      unireg_abort(1);
    }
3164 3165
    if (mlockall(MCL_CURRENT))
    {
3166
      if (global_system_variables.log_warnings)
3167
	sql_print_warning("Failed to lock memory. Errno: %d\n",errno);
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      locked_in_memory= 0;
3169
    }
3170 3171
    if (user_info)
      set_user(mysqld_user, user_info);
3172
  }
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  else
3174
#endif
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    locked_in_memory=0;
3176

3177
  ft_init_stopwords();
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  init_max_user_conn();
3180
  init_update_queries();
3181
  DBUG_RETURN(0);
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}
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3184

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static void create_maintenance_thread()
{
  if (
3188
#ifdef WITH_BERKELEY_STORAGE_ENGINE
3189
      (have_berkeley_db == SHOW_OPTION_YES) ||
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#endif
      (flush_time && flush_time != ~(ulong) 0L))
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  {
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    pthread_t hThread;
    if (pthread_create(&hThread,&connection_attrib,handle_manager,0))
3195
      sql_print_warning("Can't create thread to manage maintenance");
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  }
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}

3199

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static void create_shutdown_thread()
{
3202
#if !defined(EMBEDDED_LIBRARY)
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#ifdef __WIN__
3204 3205 3206
  hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
3207
    sql_print_warning("Can't create thread to handle shutdown requests");
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3209 3210
  // On "Stop Service" we have to do regular shutdown
  Service.SetShutdownEvent(hEventShutdown);
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#endif
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#ifdef OS2
3213 3214 3215
  pthread_cond_init(&eventShutdown, NULL);
  pthread_t hThread;
  if (pthread_create(&hThread,&connection_attrib,handle_shutdown,0))
3216
    sql_print_warning("Can't create thread to handle shutdown requests");
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#endif
3218
#endif // EMBEDDED_LIBRARY 
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}
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3221 3222 3223

#if defined(__NT__) || defined(HAVE_SMEM)
static void handle_connections_methods()
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{
3225 3226 3227
  pthread_t hThread;
  DBUG_ENTER("handle_connections_methods");
#ifdef __NT__
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  if (hPipe == INVALID_HANDLE_VALUE &&
3229 3230
      (!have_tcpip || opt_disable_networking) &&
      !opt_enable_shared_memory)
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  {
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    sql_print_error("TCP/IP, --shared-memory, or --named-pipe should be configured on NT OS");
3233
    unireg_abort(1);				// Will not return
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  }
3235 3236 3237 3238 3239 3240 3241
#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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  {
3243 3244 3245
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_namedpipes, 0))
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    {
3247
      sql_print_warning("Can't create thread to handle named pipes");
3248 3249 3250 3251 3252 3253 3254 3255 3256 3257
      handler_count--;
    }
  }
#endif /* __NT__ */
  if (have_tcpip && !opt_disable_networking)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_sockets, 0))
    {
3258
      sql_print_warning("Can't create thread to handle TCP/IP");
3259 3260 3261 3262 3263 3264 3265 3266 3267 3268
      handler_count--;
    }
  }
#ifdef HAVE_SMEM
  if (opt_enable_shared_memory)
  {
    handler_count++;
    if (pthread_create(&hThread,&connection_attrib,
		       handle_connections_shared_memory, 0))
    {
3269
      sql_print_warning("Can't create thread to handle shared memory");
3270
      handler_count--;
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    }
  }
3273
#endif 
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3275 3276 3277 3278 3279
  while (handler_count > 0)
    pthread_cond_wait(&COND_handler_count,&LOCK_thread_count);
  pthread_mutex_unlock(&LOCK_thread_count);
  DBUG_VOID_RETURN;
}
3280 3281 3282 3283 3284 3285 3286 3287 3288 3289

void decrement_handler_count()
{
  pthread_mutex_lock(&LOCK_thread_count);
  handler_count--;
  pthread_mutex_unlock(&LOCK_thread_count);
  pthread_cond_signal(&COND_handler_count);
}
#else
#define decrement_handler_count()
3290 3291 3292
#endif /* defined(__NT__) || defined(HAVE_SMEM) */


3293
#ifndef EMBEDDED_LIBRARY
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3294 3295 3296 3297 3298 3299 3300 3301
#ifdef __WIN__
int win_main(int argc, char **argv)
#else
int main(int argc, char **argv)
#endif
{
  DEBUGGER_OFF;

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  rpl_filter= new Rpl_filter;
  binlog_filter= new Rpl_filter;
3304 3305 3306 3307 3308 3309
  if (!rpl_filter || !binlog_filter) 
  {
    sql_perror("Could not allocate replication and binlog filters");
    exit(1);
  }

3310 3311
  MY_INIT(argv[0]);		// init my_sys library & pthreads

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#ifdef _CUSTOMSTARTUPCONFIG_
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  if (_cust_check_startup())
  {
    / * _cust_check_startup will report startup failure error * /
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    exit(1);
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  }
#endif
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3320
#ifdef	__WIN__
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  /*
    Before performing any socket operation (like retrieving hostname
    in init_common_variables we have to call WSAStartup
  */
3325 3326 3327 3328
  {
    WSADATA WsaData;
    if (SOCKET_ERROR == WSAStartup (0x0101, &WsaData))
    {
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      /* errors are not read yet, so we use english text here */
3330 3331 3332 3333 3334 3335
      my_message(ER_WSAS_FAILED, "WSAStartup Failed", MYF(0));
      unireg_abort(1);
    }
  }
#endif /* __WIN__ */

3336 3337 3338
  if (init_common_variables(MYSQL_CONFIG_NAME,
			    argc, argv, load_default_groups))
    unireg_abort(1);				// Will do exit
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  init_signals();
  if (!(opt_specialflag & SPECIAL_NO_PRIOR))
    my_pthread_setprio(pthread_self(),CONNECT_PRIOR);
3343
#if defined(__ia64__) || defined(__ia64)
3344 3345 3346 3347
  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
3348 3349
  pthread_attr_setstacksize(&connection_attrib,thread_stack*2);
#else
3350
  pthread_attr_setstacksize(&connection_attrib,thread_stack);
3351
#endif
3352 3353 3354 3355 3356
#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);
3357 3358 3359
#if defined(__ia64__) || defined(__ia64)
    stack_size/= 2;
#endif
3360 3361 3362 3363
    /* 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)
3364
	sql_print_warning("Asked for %ld thread stack, but got %ld",
3365 3366 3367 3368
			  thread_stack, stack_size);
#if defined(__ia64__) || defined(__ia64)
      thread_stack= stack_size*2;
#else
3369
      thread_stack= stack_size;
3370
#endif
3371 3372 3373
    }
  }
#endif
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3375
  (void) thr_setconcurrency(concurrency);	// 10 by default
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3377 3378
  select_thread=pthread_self();
  select_thread_in_use=1;
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3379 3380 3381 3382 3383 3384 3385 3386 3387 3388
  init_ssl();

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

  /*
    We have enough space for fiddling with the argv, continue
  */
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3389
  check_data_home(mysql_real_data_home);
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3390 3391 3392 3393 3394
  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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  if ((user_info= check_user(mysqld_user)))
  {
#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT)
    if (locked_in_memory) // getuid() == 0 here
      set_effective_user(user_info);
    else
#endif
      set_user(mysqld_user, user_info);
  }

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  if (opt_bin_log && !server_id)
  {
    server_id= !master_host ? 1 : 2;
#ifdef EXTRA_DEBUG
3410
    switch (server_id) {
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    case 1:
3412 3413
      sql_print_warning("\
You have enabled the binary log, but you haven't set server-id to \
3414 3415
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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3416 3417
      break;
    case 2:
3418 3419
      sql_print_warning("\
You should set server-id to a non-0 value if master_host is set; \
3420
we force server id to 2, but this MySQL server will not act as a slave.");
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      break;
    }
3423
#endif
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  }

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

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3431 3432 3433
#ifdef __WIN__
  if (!opt_console)
  {
3434 3435
    freopen(log_error_file,"a+",stdout);
    freopen(log_error_file,"a+",stderr);
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    FreeConsole();				// Remove window
3437
  }
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3438 3439
#endif

3440 3441 3442 3443 3444 3445
  /*
   Initialize my_str_malloc() and my_str_free()
  */
  my_str_malloc= &my_str_malloc_mysqld;
  my_str_free= &my_str_free_mysqld;

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  /*
    init signals & alarm
    After this we can't quit by a simple unireg_abort
  */
3450
  error_handler_hook= my_message_sql;
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3451
  start_signal_handler();				// Creates pidfile
3452
  if (acl_init(opt_noacl) ||
3453
      my_tz_init((THD *)0, default_tz_name, opt_bootstrap))
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  {
    abort_loop=1;
    select_thread_in_use=0;
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#ifndef __NETWARE__
    (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL);
#endif /* __NETWARE__ */
3460
    
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    if (!opt_bootstrap)
      (void) my_delete(pidfile_name,MYF(MY_WME));	// Not needed anymore
3463

3464
    if (unix_sock != INVALID_SOCKET)
3465
      unlink(mysqld_unix_port);
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    exit(1);
  }
  if (!opt_noacl)
3469
    (void) grant_init();
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3470 3471

  if (!opt_noacl)
3472 3473 3474
  {
    plugin_init();
#ifdef HAVE_DLOPEN
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    udf_init();
#endif
3477
  }
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  if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
    opt_skip_slave_start= 1;
3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490
  /*
    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);
  }
3491

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  if (opt_bootstrap)
  {
3494
    select_thread_in_use= 0;                    // Allow 'kill' to work
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    bootstrap(stdin);
3496
    end_thr_alarm(1);				// Don't allow alarms
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    unireg_abort(bootstrap_error ? 1 : 0);
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  }
  if (opt_init_file)
  {
    if (read_init_file(opt_init_file))
    {
3503
      end_thr_alarm(1);				// Don't allow alarms
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      unireg_abort(1);
    }
  }
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  create_shutdown_thread();
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  create_maintenance_thread();

3511
  sql_print_information(ER(ER_STARTUP),my_progname,server_version,
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                        ((unix_sock == INVALID_SOCKET) ? (char*) ""
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                                                       : mysqld_unix_port),
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                         mysqld_port,
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                         MYSQL_COMPILATION_COMMENT);
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  // Signal threads waiting for server to be started
  mysqld_server_started= 1;
  pthread_cond_signal(&COND_server_started);

3521 3522
#if defined(__NT__) || defined(HAVE_SMEM)
  handle_connections_methods();
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#else
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#ifdef __WIN__
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3525
  if (!have_tcpip || opt_disable_networking)
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  {
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    sql_print_error("TCP/IP unavailable or disabled with --skip-networking; no available interfaces");
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    unireg_abort(1);
  }
#endif
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  handle_connections_sockets(0);
#endif /* __NT__ */

  /* (void) pthread_attr_destroy(&connection_attrib); */
3535
  
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  DBUG_PRINT("quit",("Exiting main thread"));

#ifndef __WIN__
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#ifdef EXTRA_DEBUG2
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  sql_print_error("Before Lock_thread_count");
#endif
  (void) pthread_mutex_lock(&LOCK_thread_count);
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  DBUG_PRINT("quit", ("Got thread_count mutex"));
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  select_thread_in_use=0;			// For close_connections
  (void) pthread_mutex_unlock(&LOCK_thread_count);
3546
  (void) pthread_cond_broadcast(&COND_thread_count);
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#ifdef EXTRA_DEBUG2
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  sql_print_error("After lock_thread_count");
#endif
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#endif /* __WIN__ */
3551

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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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#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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  if (Service.IsNT() && start_mode)
    Service.Stop();
  else
  {
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    Service.SetShutdownEvent(0);
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    if (hEventShutdown)
      CloseHandle(hEventShutdown);
  }
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#endif
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  clean_up(1);
3569
  wait_for_signal_thread_to_end();
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  clean_up_mutexes();
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  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
3572
 
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  exit(0);
  return(0);					/* purecov: deadcode */
}

3577
#endif /* EMBEDDED_LIBRARY */
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3580 3581 3582 3583 3584
/****************************************************************************
  Main and thread entry function for Win32
  (all this is needed only to run mysqld as a service on WinNT)
****************************************************************************/

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#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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int mysql_service(void *p)
{
3588 3589 3590 3591
  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;
}

3595 3596 3597 3598 3599 3600 3601 3602

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

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

  if (!strchr(from, ' '))
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    return strmake(to, from, length-1);
  return strxnmov(to, length-1, "\"", from, "\"", NullS);
3605 3606 3607
}


3608 3609 3610 3611 3612
/*
  Handle basic handling of services, like installation and removal

  SYNOPSIS
    default_service_handling()
3613
    argv		Pointer to argument list
3614 3615 3616
    servicename		Internal name of service
    displayname		Display name of service (in taskbar ?)
    file_path		Path to this program
3617
    startup_option	Startup option to mysqld
3618 3619 3620 3621 3622 3623

  RETURN VALUES
    0		option handled
    1		Could not handle option
 */

3624 3625 3626 3627 3628
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)
3631
{
3632
  char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end;
3633
  end= path_and_service + sizeof(path_and_service)-3;
3634 3635 3636 3637 3638 3639 3640 3641 3642

  /* 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);
  }
3643 3644
  /* We must have servicename last */
  *pos++= ' ';
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  (void) add_quoted_string(pos, servicename, end);
3646

3647 3648
  if (Service.got_service_option(argv, "install"))
  {
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    Service.Install(1, servicename, displayname, path_and_service,
                    account_name);
3651 3652 3653 3654
    return 0;
  }
  if (Service.got_service_option(argv, "install-manual"))
  {
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    Service.Install(0, servicename, displayname, path_and_service,
                    account_name);
3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667
    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)
{
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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
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  */
3675
  int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name,
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                                                  "MySQLShutdown"), 10);

3678 3679 3680
  /* Must be initialized early for comparison of service name */
  system_charset_info= &my_charset_utf8_general_ci;

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  if (Service.GetOS())	/* true NT family */
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  {
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    char file_path[FN_REFLEN];
3684
    my_path(file_path, argv[0], "");		      /* Find name in path */
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    fn_format(file_path,argv[0],file_path,"",
	      MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_RESOLVE_SYMLINKS);
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    if (argc == 2)
3689
    {
3690
      if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME,
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				   file_path, "", NULL))
3692
	return 0;
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      if (Service.IsService(argv[1]))        /* Start an optional service */
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      {
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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.
	*/
3701
	if (my_strcasecmp(system_charset_info, argv[1],"mysql"))
3702
	  load_default_groups[load_default_groups_sz-2]= argv[1];
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        start_mode= 1;
3704
        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))
3712 3713
	return 0;
      if (Service.IsService(argv[2]))
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      {
3715 3716 3717 3718
	/*
	  mysqld was started as
	  mysqld --defaults-file=my_path\my.ini service-name
	*/
3719
	use_opt_args=1;
3720
	opt_argc= 2;				// Skip service-name
3721 3722
	opt_argv=argv;
	start_mode= 1;
3723
	if (my_strcasecmp(system_charset_info, argv[2],"mysql"))
3724
	  load_default_groups[load_default_groups_sz-2]= argv[2];
3725
	Service.Init(argv[2], mysql_service);
3726
	return 0;
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      }
    }
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3729
    else if (argc == 4 || argc == 5)
3730 3731
    {
      /*
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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.)
3737
      */
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3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752
      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;
3753
    }
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    else if (argc == 1 && Service.IsService(MYSQL_SERVICENAME))
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    {
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      /* start the default service */
      start_mode= 1;
      Service.Init(MYSQL_SERVICENAME, mysql_service);
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      return 0;
    }
  }
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  /* Start as standalone server */
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  Service.my_argc=argc;
  Service.my_argv=argv;
  mysql_service(NULL);
  return 0;
}
#endif


3771 3772 3773 3774
/*
  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.
*/
3775

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3776
static void bootstrap(FILE *file)
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{
3778
  DBUG_ENTER("bootstrap");
3779

3780
  THD *thd= new THD;
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  thd->bootstrap=1;
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  my_net_init(&thd->net,(st_vio*) 0);
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  thd->max_client_packet_length= thd->net.max_packet;
3784
  thd->security_ctx->master_access= ~(ulong)0;
3785
  thd->thread_id=thread_id++;
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  thread_count++;
3787 3788

  bootstrap_file=file;
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#ifndef EMBEDDED_LIBRARY			// TODO:  Enable this
3790 3791 3792
  if (pthread_create(&thd->real_id,&connection_attrib,handle_bootstrap,
		     (void*) thd))
  {
3793
    sql_print_warning("Can't create thread to handle bootstrap");
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3794 3795
    bootstrap_error=-1;
    DBUG_VOID_RETURN;
3796 3797 3798 3799 3800 3801 3802 3803 3804
  }
  /* 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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3805 3806 3807 3808 3809
#else
  thd->mysql= 0;
  handle_bootstrap((void *)thd);
#endif

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3810
  DBUG_VOID_RETURN;
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}

3813

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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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3821
  bootstrap(file);
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  (void) my_fclose(file,MYF(MY_WME));
  return 0;
}


3827
#ifndef EMBEDDED_LIBRARY
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static void create_new_thread(THD *thd)
{
  DBUG_ENTER("create_new_thread");

  NET *net=&thd->net;				// For easy ref
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  net->read_timeout = (uint) connect_timeout;
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  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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3840
    DBUG_PRINT("error",("Too many connections"));
3841
    close_connection(thd, ER_CON_COUNT_ERROR, 1);
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    delete thd;
    DBUG_VOID_RETURN;
  }
3845
  pthread_mutex_lock(&LOCK_thread_count);
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3846
  thd->thread_id=thread_id++;
3847

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

  /* Start a new thread to handle connection */
3851
#ifdef ONE_THREAD
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  if (test_flags & TEST_NO_THREADS)		// For debugging under Linux
  {
    thread_cache_size=0;			// Safety
    thread_count++;
    threads.append(thd);
    thd->real_id=pthread_self();
    (void) pthread_mutex_unlock(&LOCK_thread_count);
    handle_one_connection((void*) thd);
  }
  else
#endif
  {
    if (cached_thread_count > wake_thread)
    {
      start_cached_thread(thd);
    }
    else
    {
      int error;
      thread_count++;
3872
      thread_created++;
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      threads.append(thd);
3874 3875
      if (thread_count-delayed_insert_threads > max_used_connections)
        max_used_connections=thread_count-delayed_insert_threads;
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      DBUG_PRINT("info",(("creating thread %d"), thd->thread_id));
      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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3886
	thd->killed= THD::KILL_CONNECTION;			// Safety
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	(void) pthread_mutex_unlock(&LOCK_thread_count);
3888
	statistic_increment(aborted_connects,&LOCK_status);
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3889
	net_printf_error(thd, ER_CANT_CREATE_THREAD, error);
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3890
	(void) pthread_mutex_lock(&LOCK_thread_count);
3891
	close_connection(thd,0,0);
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3892 3893 3894 3895 3896
	delete thd;
	(void) pthread_mutex_unlock(&LOCK_thread_count);
	DBUG_VOID_RETURN;
      }
    }
3897 3898
    (void) pthread_mutex_unlock(&LOCK_thread_count);

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3899
  }
3900
  DBUG_PRINT("info",("Thread created"));
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  DBUG_VOID_RETURN;
}
3903 3904
#endif /* EMBEDDED_LIBRARY */

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#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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3910 3911 3912 3913
  if (
#if !defined(__NETWARE__)
      unix_sock == INVALID_SOCKET ||
#endif
3914
      (!opt_disable_networking && ip_sock == INVALID_SOCKET))
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  {
    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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	/* Handle new connections and spawn new process to handle them */

3928
#ifndef EMBEDDED_LIBRARY
3929
pthread_handler_t handle_connections_sockets(void *arg __attribute__((unused)))
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3930 3931 3932 3933 3934 3935 3936 3937
{
  my_socket sock,new_sock;
  uint error_count=0;
  uint max_used_connection= (uint) (max(ip_sock,unix_sock)+1);
  fd_set readFDs,clientFDs;
  THD *thd;
  struct sockaddr_in cAddr;
  int ip_flags=0,socket_flags=0,flags;
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  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."));
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3961
  MAYBE_BROKEN_SYSCALL;
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3962 3963 3964
  while (!abort_loop)
  {
    readFDs=clientFDs;
3965
#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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3971
      if (socket_errno != SOCKET_EINTR)
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3972 3973
      {
	if (!select_errors++ && !abort_loop)	/* purecov: inspected */
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3974
	  sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */
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3975
      }
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      MAYBE_BROKEN_SYSCALL
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      continue;
    }
3979
#endif	/* HPUX10 */
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3980
    if (abort_loop)
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    {
      MAYBE_BROKEN_SYSCALL;
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3983
      break;
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3984
    }
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3986
    /* Is this a new connection request ? */
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3987 3988 3989 3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014
#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__ 
      // 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;
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      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
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4038
    if (new_sock == INVALID_SOCKET)
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4039 4040 4041
    {
      if ((error_count++ & 255) == 0)		// This can happen often
	sql_perror("Error in accept");
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4042
      MAYBE_BROKEN_SYSCALL;
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4043
      if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE)
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4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054
	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);
4055 4056
	fromhost(&req);
	if (!hosts_access(&req))
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4057
	{
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4058 4059 4060 4061 4062
	  /*
	    This may be stupid but refuse() includes an exit(0)
	    which we surely don't want...
	    clean_exit() - same stupid thing ...
	  */
4063
	  syslog(deny_severity, "refused connect from %s",
4064
		 eval_client(&req));
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4065

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4066 4067 4068 4069 4070 4071
	  /*
	    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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4072 4073 4074
	  if (req.sink)
	    ((void (*)(int))req.sink)(req.fd);

4075
	  (void) shutdown(new_sock,2);
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4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101
	  (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");
	(void) shutdown(new_sock,2);
	(void) closesocket(new_sock);
	continue;
      }
    }

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

    if (!(thd= new THD))
    {
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4102 4103
      (void) shutdown(new_sock,2);
      VOID(closesocket(new_sock));
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4104 4105 4106
      continue;
    }
    if (!(vio_tmp=vio_new(new_sock,
4107
			  sock == unix_sock ? VIO_TYPE_SOCKET :
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4108
			  VIO_TYPE_TCPIP,
4109
			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
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4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122
	my_net_init(&thd->net,vio_tmp))
    {
      if (vio_tmp)
	vio_delete(vio_tmp);
      else
      {
	(void) shutdown(new_sock,2);
	(void) closesocket(new_sock);
      }
      delete thd;
      continue;
    }
    if (sock == unix_sock)
4123
      thd->security_ctx->host=(char*) my_localhost;
4124 4125 4126 4127 4128 4129
#ifdef __WIN__
    /* Set default wait_timeout */
    ulong wait_timeout= global_system_variables.net_wait_timeout * 1000;
    (void) setsockopt(new_sock, SOL_SOCKET, SO_RCVTIMEO, (char*)&wait_timeout,
                    sizeof(wait_timeout));
#endif
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4130 4131 4132
    create_new_thread(thd);
  }

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4133 4134 4135 4136
#ifdef OS2
  // kill server must be invoked from thread 1!
  kill_server(MYSQL_KILL_SIGNAL);
#endif
4137
  decrement_handler_count();
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4138 4139 4140 4141 4142
  DBUG_RETURN(0);
}


#ifdef __NT__
4143
pthread_handler_t handle_connections_namedpipes(void *arg)
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4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155
{
  HANDLE hConnectedPipe;
  BOOL fConnected;
  THD *thd;
  my_thread_init();
  DBUG_ENTER("handle_connections_namedpipes");
  (void) my_pthread_getprio(pthread_self());		// For debugging

  DBUG_PRINT("general",("Waiting for named pipe connections."));
  while (!abort_loop)
  {
    /* wait for named pipe connection */
unknown's avatar
Merge  
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4156
    fConnected = ConnectNamedPipe(hPipe, NULL);
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4157 4158
    if (abort_loop)
      break;
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4159
    if (!fConnected)
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4160
      fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
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4161
    if (!fConnected)
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4162
    {
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4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176
      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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4177 4178 4179 4180 4181 4182 4183
      {
	sql_perror("Can't create new named pipe!");
	break;					// Abort
      }
    }
    hConnectedPipe = hPipe;
    /* create new pipe for new connection */
4184
    if ((hPipe = CreateNamedPipe(pipe_name,
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4185 4186 4187 4188 4189
				 PIPE_ACCESS_DUPLEX,
				 PIPE_TYPE_BYTE |
				 PIPE_READMODE_BYTE |
				 PIPE_WAIT,
				 PIPE_UNLIMITED_INSTANCES,
4190 4191
				 (int) global_system_variables.net_buffer_length,
				 (int) global_system_variables.net_buffer_length,
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4192 4193 4194 4195 4196 4197 4198 4199 4200
				 NMPWAIT_USE_DEFAULT_WAIT,
				 &saPipeSecurity)) ==
	INVALID_HANDLE_VALUE)
    {
      sql_perror("Can't create new named pipe!");
      hPipe=hConnectedPipe;
      continue;					// We have to try again
    }

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4201
    if (!(thd = new THD))
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4202
    {
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4203 4204
      DisconnectNamedPipe(hConnectedPipe);
      CloseHandle(hConnectedPipe);
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4205 4206 4207 4208 4209
      continue;
    }
    if (!(thd->net.vio = vio_new_win32pipe(hConnectedPipe)) ||
	my_net_init(&thd->net, thd->net.vio))
    {
4210
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
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4211 4212 4213
      delete thd;
      continue;
    }
4214 4215
    /* Host is unknown */
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0));
unknown's avatar
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4216 4217 4218
    create_new_thread(thd);
  }

4219
  decrement_handler_count();
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4220 4221 4222 4223
  DBUG_RETURN(0);
}
#endif /* __NT__ */

4224

4225
/*
4226 4227 4228
  Thread of shared memory's service

  SYNOPSIS
4229
    handle_connections_shared_memory()
4230 4231
    arg                              Arguments of thread
*/
4232

4233
#ifdef HAVE_SMEM
4234
pthread_handler_t handle_connections_shared_memory(void *arg)
4235
{
4236 4237
  /* file-mapping object, use for create shared memory */
  HANDLE handle_connect_file_map= 0;
4238
  char  *handle_connect_map= 0;                 // pointer on shared memory
4239 4240 4241
  HANDLE event_connect_answer= 0;
  ulong smem_buffer_length= shared_memory_buffer_length + 4;
  ulong connect_number= 1;
4242 4243 4244
  char tmp[63];
  char *suffix_pos;
  char connect_number_char[22], *p;
4245
  const char *errmsg= 0;
4246
  SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0;
4247 4248 4249 4250
  my_thread_init();
  DBUG_ENTER("handle_connections_shared_memorys");
  DBUG_PRINT("general",("Waiting for allocated shared memory."));

4251 4252 4253 4254 4255 4256 4257 4258
  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;

4259 4260 4261 4262 4263 4264 4265
  /*
    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)
  */
4266
  suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS);
4267
  strmov(suffix_pos, "CONNECT_REQUEST");
4268 4269
  if ((smem_event_connect_request= CreateEvent(sa_event,
                                               FALSE, FALSE, tmp)) == 0)
4270
  {
4271
    errmsg= "Could not create request event";
4272 4273
    goto error;
  }
4274
  strmov(suffix_pos, "CONNECT_ANSWER");
4275
  if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4276
  {
4277
    errmsg="Could not create answer event";
4278 4279
    goto error;
  }
4280
  strmov(suffix_pos, "CONNECT_DATA");
4281 4282 4283
  if ((handle_connect_file_map=
       CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                         PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0)
4284
  {
4285
    errmsg= "Could not create file mapping";
4286 4287
    goto error;
  }
4288 4289 4290
  if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map,
						  FILE_MAP_WRITE,0,0,
						  sizeof(DWORD))) == 0)
4291
  {
4292
    errmsg= "Could not create shared memory service";
4293 4294 4295 4296 4297
    goto error;
  }

  while (!abort_loop)
  {
4298
    /* Wait a request from client */
4299
    WaitForSingleObject(smem_event_connect_request,INFINITE);
4300

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4301 4302 4303
    /*
       it can be after shutdown command
    */
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Merge  
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4304
    if (abort_loop)
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4305
      goto error;
4306

4307 4308 4309 4310 4311 4312
    HANDLE handle_client_file_map= 0;
    char  *handle_client_map= 0;
    HANDLE event_client_wrote= 0;
    HANDLE event_client_read= 0;    // for transfer data server <-> client
    HANDLE event_server_wrote= 0;
    HANDLE event_server_read= 0;
unknown's avatar
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4313
    HANDLE event_conn_closed= 0;
4314
    THD *thd= 0;
4315

4316
    p= int10_to_str(connect_number, connect_number_char, 10);
4317 4318 4319 4320 4321 4322 4323 4324 4325 4326
    /*
      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);
4327
    strmov(suffix_pos, "DATA");
4328 4329 4330
    if ((handle_client_file_map=
         CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                           PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0)
4331
    {
4332
      errmsg= "Could not create file mapping";
4333 4334
      goto errorconn;
    }
4335 4336 4337
    if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map,
						  FILE_MAP_WRITE,0,0,
						  smem_buffer_length)) == 0)
4338
    {
4339
      errmsg= "Could not create memory map";
4340 4341 4342
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_WROTE");
4343
    if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4344
    {
4345
      errmsg= "Could not create client write event";
4346 4347 4348
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_READ");
4349
    if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4350
    {
4351
      errmsg= "Could not create client read event";
4352 4353 4354
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_READ");
4355
    if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
4356
    {
4357
      errmsg= "Could not create server read event";
4358 4359 4360
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_WROTE");
4361 4362
    if ((event_server_wrote= CreateEvent(sa_event,
                                         FALSE, FALSE, tmp)) == 0)
4363
    {
4364
      errmsg= "Could not create server write event";
4365 4366
      goto errorconn;
    }
unknown's avatar
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4367
    strmov(suffix_pos, "CONNECTION_CLOSED");
4368 4369
    if ((event_conn_closed= CreateEvent(sa_event,
                                        TRUE, FALSE, tmp)) == 0)
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4370 4371 4372 4373
    {
      errmsg= "Could not create closed connection event";
      goto errorconn;
    }
4374
    if (abort_loop)
4375
      goto errorconn;
4376 4377 4378
    if (!(thd= new THD))
      goto errorconn;
    /* Send number of connection to client */
4379
    int4store(handle_connect_map, connect_number);
4380
    if (!SetEvent(event_connect_answer))
4381
    {
4382
      errmsg= "Could not send answer event";
4383 4384
      goto errorconn;
    }
4385
    /* Set event that client should receive data */
4386 4387
    if (!SetEvent(event_client_read))
    {
4388
      errmsg= "Could not set client to read mode";
4389 4390
      goto errorconn;
    }
4391
    if (!(thd->net.vio= vio_new_win32shared_memory(&thd->net,
unknown's avatar
unknown committed
4392 4393 4394 4395 4396 4397
                                                   handle_client_file_map,
                                                   handle_client_map,
                                                   event_client_wrote,
                                                   event_client_read,
                                                   event_server_wrote,
                                                   event_server_read,
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4398
                                                   event_conn_closed)) ||
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4399
                        my_net_init(&thd->net, thd->net.vio))
4400
    {
4401
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
4402 4403
      errmsg= 0;
      goto errorconn;
4404
    }
4405
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */
4406
    create_new_thread(thd);
4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418
    connect_number++;
    continue;

errorconn:
    /* Could not form connection;  Free used handlers/memort and retry */
    if (errmsg)
    {
      char buff[180];
      strxmov(buff, "Can't create shared memory connection: ", errmsg, ".",
	      NullS);
      sql_perror(buff);
    }
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4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432
    if (handle_client_file_map) 
      CloseHandle(handle_client_file_map);
    if (handle_client_map)
      UnmapViewOfFile(handle_client_map);
    if (event_server_wrote)
      CloseHandle(event_server_wrote);
    if (event_server_read)
      CloseHandle(event_server_read);
    if (event_client_wrote)
      CloseHandle(event_client_wrote);
    if (event_client_read)
      CloseHandle(event_client_read);
    if (event_conn_closed)
      CloseHandle(event_conn_closed);
4433
    delete thd;
4434
  }
4435 4436

  /* End shared memory handling */
4437
error:
4438 4439 4440 4441 4442 4443
  if (errmsg)
  {
    char buff[180];
    strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS);
    sql_perror(buff);
  }
4444 4445
  my_security_attr_free(sa_event);
  my_security_attr_free(sa_mapping);
4446 4447 4448
  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);
4449
  if (smem_event_connect_request) CloseHandle(smem_event_connect_request);
4450 4451

  decrement_handler_count();
4452 4453 4454
  DBUG_RETURN(0);
}
#endif /* HAVE_SMEM */
4455
#endif /* EMBEDDED_LIBRARY */
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4456

4457 4458 4459

/****************************************************************************
  Handle start options
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4460 4461
******************************************************************************/

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4462
enum options_mysqld
4463
{
4464 4465 4466
  OPT_ISAM_LOG=256,            OPT_SKIP_NEW, 
  OPT_SKIP_GRANT,              OPT_SKIP_LOCK, 
  OPT_ENABLE_LOCK,             OPT_USE_LOCKING,
4467 4468
  OPT_SOCKET,                  OPT_UPDATE_LOG,
  OPT_BIN_LOG,                 OPT_SKIP_RESOLVE,
4469 4470
  OPT_SKIP_NETWORKING,         OPT_BIN_LOG_INDEX,
  OPT_BIND_ADDRESS,            OPT_PID_FILE,
4471
  OPT_SKIP_PRIOR,              OPT_BIG_TABLES,
4472 4473
  OPT_STANDALONE,              OPT_ONE_THREAD,
  OPT_CONSOLE,                 OPT_LOW_PRIORITY_UPDATES,
4474
  OPT_SKIP_HOST_CACHE,         OPT_SHORT_LOG_FORMAT,
4475
  OPT_FLUSH,                   OPT_SAFE,
4476
  OPT_BOOTSTRAP,               OPT_SKIP_SHOW_DB,
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4477
  OPT_STORAGE_ENGINE,          OPT_INIT_FILE,
4478
  OPT_DELAY_KEY_WRITE_ALL,     OPT_SLOW_QUERY_LOG,
4479
  OPT_DELAY_KEY_WRITE,	       OPT_CHARSETS_DIR,
4480
  OPT_BDB_HOME,                OPT_BDB_LOG,
4481
  OPT_BDB_TMP,                 OPT_BDB_SYNC,
4482
  OPT_BDB_LOCK,                OPT_BDB,
4483 4484 4485 4486
  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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Merge  
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4487
  OPT_MASTER_RETRY_COUNT,      OPT_LOG_TC, OPT_LOG_TC_SIZE,
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unknown committed
4488 4489
  OPT_MASTER_SSL,              OPT_MASTER_SSL_KEY,
  OPT_MASTER_SSL_CERT,         OPT_MASTER_SSL_CAPATH,
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4490
  OPT_MASTER_SSL_CIPHER,       OPT_MASTER_SSL_CA,
4491
  OPT_SQL_BIN_UPDATE_SAME,     OPT_REPLICATE_DO_DB,
4492 4493 4494 4495
  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,
4496
  OPT_REPLICATE_REWRITE_DB,    OPT_SERVER_ID,
4497
  OPT_SKIP_SLAVE_START,        OPT_SKIP_INNOBASE,
4498 4499
  OPT_SAFEMALLOC_MEM_LIMIT,    OPT_REPLICATE_DO_TABLE,
  OPT_REPLICATE_IGNORE_TABLE,  OPT_REPLICATE_WILD_DO_TABLE,
4500
  OPT_REPLICATE_WILD_IGNORE_TABLE, OPT_REPLICATE_SAME_SERVER_ID,
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Merge  
unknown committed
4501
  OPT_DISCONNECT_SLAVE_EVENT_COUNT, OPT_TC_HEURISTIC_RECOVER,
4502 4503 4504
  OPT_ABORT_SLAVE_EVENT_COUNT,
  OPT_INNODB_DATA_HOME_DIR,
  OPT_INNODB_DATA_FILE_PATH,
4505 4506 4507 4508 4509
  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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Merge  
unknown committed
4510 4511
  OPT_INNODB_DOUBLEWRITE,
  OPT_INNODB_CHECKSUMS,
4512
  OPT_INNODB_FAST_SHUTDOWN,
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4513
  OPT_INNODB_FILE_PER_TABLE, OPT_CRASH_BINLOG_INNODB,
4514
  OPT_INNODB_LOCKS_UNSAFE_FOR_BINLOG,
4515
  OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
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unknown committed
4516
  OPT_SAFE_SHOW_DB, OPT_INNODB_SAFE_BINLOG,
4517
  OPT_INNODB, OPT_ISAM,
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Merge  
unknown committed
4518
  OPT_ENGINE_CONDITION_PUSHDOWN,
4519 4520
  OPT_NDBCLUSTER, OPT_NDB_CONNECTSTRING, OPT_NDB_USE_EXACT_COUNT,
  OPT_NDB_FORCE_SEND, OPT_NDB_AUTOINCREMENT_PREFETCH_SZ,
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Merge  
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4521 4522
  OPT_NDB_SHM, OPT_NDB_OPTIMIZED_NODE_SELECTION, OPT_NDB_CACHE_CHECK_TIME,
  OPT_NDB_MGMD, OPT_NDB_NODEID,
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4523
  OPT_NDB_DISTRIBUTION,
4524 4525
  OPT_NDB_INDEX_STAT_ENABLE,
  OPT_NDB_INDEX_STAT_CACHE_ENTRIES, OPT_NDB_INDEX_STAT_UPDATE_FREQ,
4526
  OPT_SKIP_SAFEMALLOC,
unknown's avatar
Merge  
unknown committed
4527
  OPT_TEMP_POOL, OPT_TX_ISOLATION, OPT_COMPLETION_TYPE,
4528 4529 4530 4531 4532 4533
  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,
4534
  OPT_SHOW_SLAVE_AUTH_INFO,
4535 4536 4537 4538 4539 4540 4541 4542 4543
  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_RELAY_LOG_SIZE, OPT_MAX_SORT_LENGTH, 
  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_OPEN_CACHE, OPT_TABLE_DEF_CACHE,
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  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,
  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,
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  OPT_BDB_CACHE_PARTS,
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  OPT_BDB_LOG_BUFFER_SIZE,
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  OPT_BDB_MAX_LOCK,
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  OPT_BDB_REGION_SIZE,
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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_OLD_ALTER_TABLE,
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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_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,
  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,
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  OPT_OLD_STYLE_USER_LIMITS,
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  OPT_LOG_SLOW_ADMIN_STATEMENTS,
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  OPT_TABLE_LOCK_WAIT_TIMEOUT,
  OPT_PLUGIN_DIR
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};
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#define LONG_TIMEOUT ((ulong) 3600L*24L*365L)

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struct my_option my_long_options[] =
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{
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  {"help", '?', "Display this help and exit.", 
   (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 */
4656
  {"ansi", 'a', "Use ANSI SQL syntax instead of MySQL syntax. This mode will also set transaction isolation level 'serializable'.", 0, 0, 0,
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   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
4658
  {"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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  {"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 WITH_BERKELEY_STORAGE_ENGINE
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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,
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   NO_ARG, 0, 0, 0, 0, 0, 0},
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  {"bdb-no-sync", OPT_BDB_NOSYNC,
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   "This option is deprecated, use --skip-sync-bdb-logs instead",
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   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},
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#endif /* WITH_BERKELEY_STORAGE_ENGINE */
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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).",
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   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,
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   "Tells the master that updates to the given database should not be logged tothe binary log.",
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   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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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},
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  {"character-set-client-handshake", OPT_CHARACTER_SET_CLIENT_HANDSHAKE,
   "Don't use client side character set value sent during handshake.",
   (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-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,
4745
   "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_LONG, OPT_ARG, 1, 0, 2, 0, 0, 0},
4748
  {"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},
4751
  {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG,
4752
   NO_ARG, 0, 0, 0, 0, 0, 0},
4753
  {"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).",
4760
   (gptr*) &default_character_set_name, (gptr*) &default_character_set_name,
4761
   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 },
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  {"default-storage-engine", OPT_STORAGE_ENGINE,
4766
   "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,
4777
   "Don't flush key buffers between writes for any MyISAM table (Deprecated option, use --delay-key-write=all instead).",
4778
   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 */
4792
  {"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.  With this option enabled you can run myisamchk to test (not repair) tables while the MySQL server is running.",
   (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},
  /* 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},
  {"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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  {"init-rpl-role", OPT_INIT_RPL_ROLE, "Set the replication role.", 0, 0, 0,
4836
   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).",
4842
   (gptr*) &opt_innodb, (gptr*) &opt_innodb, 0, GET_BOOL, NO_ARG, OPT_INNODB_DEFAULT, 0, 0,
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   0, 0, 0},
4844
#ifdef WITH_INNOBASE_STORAGE_ENGINE
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  {"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},
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#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 WITH_INNOBASE_STORAGE_ENGINE
4853
  {"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_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,
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   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*) &innobase_flush_log_at_trx_commit,
   (gptr*) &innobase_flush_log_at_trx_commit,
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   0, GET_UINT, OPT_ARG,  1, 0, 2, 0, 0, 0},
4883
  {"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,
   (gptr*) &srv_max_purge_lag, 0, GET_LONG, REQUIRED_ARG, 0, 0, ~0L,
   0, 1L, 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_table_locks", OPT_INNODB_TABLE_LOCKS,
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   "Enable InnoDB locking in LOCK TABLES",
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   (gptr*) &global_system_variables.innodb_table_locks,
   (gptr*) &global_system_variables.innodb_table_locks,
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   0, GET_BOOL, OPT_ARG, 1, 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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#endif /* End WITH_INNOBASE_STORAGE_ENGINE */
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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},
  {"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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#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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  /*
    This option starts with "log-bin" to emphasize that it is specific of
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    binary logging.
4963
  */
4964
  {"log-bin-trust-function-creators", OPT_LOG_BIN_TRUST_FUNCTION_CREATORS,
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   "If equal to 0 (the default), then when --log-bin is used, creation of "
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   "a 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,
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   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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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',
   "Log some extra information to update log. Please note that this option is deprecated; see --log-short-format option.", 
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
  {"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},
4987
  {"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},
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#ifdef HAVE_MMAP
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  {"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,
   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, ~0L, 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},
5019
  {"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},
5041
  {"master-port", OPT_MASTER_PORT,
5042
   "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},
5049
  {"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},
  {"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 WITH_NDBCLUSTER_STORAGE_ENGINE
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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,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"ndb-mgmd-host", OPT_NDB_MGMD,
   "Set host and port for ndb_mgmd. Syntax: hostname[:port]",
   (gptr*) &opt_ndb_mgmd,
   (gptr*) &opt_ndb_mgmd,
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   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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  {"ndb-nodeid", OPT_NDB_NODEID,
   "Nodeid for this mysqlserver in the cluster.",
   (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,
   (gptr*) &global_system_variables.ndb_autoincrement_prefetch_sz,
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   0, GET_ULONG, REQUIRED_ARG, 32, 1, 256, 0, 0, 0},
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  {"ndb-distribution", OPT_NDB_DISTRIBUTION,
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   "Default distribution for new tables in ndb",
   (gptr*) &opt_ndb_distribution,
   (gptr*) &opt_ndb_distribution,
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 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-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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  {"ndb-index-stat-enable", OPT_NDB_INDEX_STAT_ENABLE,
   "Use ndb index statistics in query optimization.",
   (gptr*) &global_system_variables.ndb_index_stat_enable,
   (gptr*) &max_system_variables.ndb_index_stat_enable,
   0, GET_BOOL, OPT_ARG, 1, 0, 1, 0, 0, 0},
  {"ndb-index-stat-cache-entries", OPT_NDB_INDEX_STAT_CACHE_ENTRIES,
   "Number of start/end keys to store in statistics memory cache."
    " Zero means no cache and forces query of db nodes always.",
   (gptr*) &global_system_variables.ndb_index_stat_cache_entries,
   (gptr*) &max_system_variables.ndb_index_stat_cache_entries,
   0, GET_ULONG, OPT_ARG, 32, 0, ~0L, 0, 0, 0},
  {"ndb-index-stat-update-freq", OPT_NDB_INDEX_STAT_UPDATE_FREQ,
   "How often, in the long run, to query db nodes instead of statistics cache."
   " For example 20 means every 20th time.",
   (gptr*) &global_system_variables.ndb_index_stat_update_freq,
   (gptr*) &max_system_variables.ndb_index_stat_update_freq,
   0, GET_ULONG, OPT_ARG, 20, 0, ~0L, 0, 0, 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-alter-table", OPT_OLD_ALTER_TABLE,
   "Use old, non-optimized alter table.",
   (gptr*) &global_system_variables.old_alter_table,
   (gptr*) &max_system_variables.old_alter_table, 0, GET_BOOL, NO_ARG,
   0, 0, 0, 0, 0, 0},
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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.", (gptr*) &mysqld_port,
   (gptr*) &mysqld_port, 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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  {"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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#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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  // 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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  {"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},
  {"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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  {"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,
   "Don't give threads different priorities.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0,
   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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  {"tc-heuristic-recover", OPT_TC_HEURISTIC_RECOVER,
   "Decision to use in heuristic recover process. Possible values are COMMIT or ROLLBACK",
   (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)",
   (gptr*) &timed_mutexes, (gptr*) &timed_mutexes, 0, GET_BOOL, NO_ARG, 0, 
    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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   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, ~0L,
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   0, 0, 0},
  { "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 WITH_BERKELEY_STORAGE_ENGINE
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  { "bdb_cache_parts", OPT_BDB_CACHE_PARTS,
    "Number of parts to use for BDB cache.",
    (gptr*) &berkeley_cache_parts, (gptr*) &berkeley_cache_parts, 0, GET_ULONG,
    REQUIRED_ARG, 1, 1, 1024, 0, 1, 0},
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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_ULL,
    REQUIRED_ARG, KEY_CACHE_SIZE, 20*1024, (ulonglong) ~0, 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,
   REQUIRED_ARG, 10000, 0, (long) ~0, 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,
   GET_ULONG, REQUIRED_ARG, 0, 256*1024L, ~0L, 0, 1024, 0},
  {"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,
   REQUIRED_ARG, 10000, 0, (long) ~0, 0, 1, 0},
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  {"bdb_region_size", OPT_BDB_REGION_SIZE,
    "The size of the underlying logging area of the Berkeley DB environment.",
    (gptr*) &berkeley_region_size, (gptr*) &berkeley_region_size, 0, GET_ULONG,
    OPT_ARG, 60*1024L, 60*1024L, (long) ~0, 0, 1, 0},
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#endif /* WITH_BERKELEY_STORAGE_ENGINE */
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  {"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,
   REQUIRED_ARG, 32*1024L, IO_SIZE, ~0L, 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,
   0, GET_ULONG, REQUIRED_ARG, 8192*1024, 0, ~0L, 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,
    REQUIRED_ARG, DELAYED_LIMIT, 1, ~0L, 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,
    REQUIRED_ARG, DELAYED_QUEUE_SIZE, 1, ~0L, 0, 1, 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,
    "The maximum length of the result of function  group_concat.",
    (gptr*) &global_system_variables.group_concat_max_len,
    (gptr*) &max_system_variables.group_concat_max_len, 0, GET_ULONG,
    REQUIRED_ARG, 1024, 4, (long) ~0, 0, 1, 0},
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#ifdef WITH_INNOBASE_STORAGE_ENGINE
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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,
   1*1024*1024L, 512*1024L, ~0L, 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_LONG, 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_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,
   0, GET_LONG, REQUIRED_ARG, 500L, 1L, ~0L, 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,
   GET_LONG, REQUIRED_ARG, 1024*1024L, 256*1024L, ~0L, 0, 1024, 0},
  {"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,
   GET_LONG, REQUIRED_ARG, 300L, 10L, ~0L, 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,
   0, GET_LONG, REQUIRED_ARG, 20L, 0L, ~0L, 0, 1L, 0},
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  {"innodb_thread_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
   "Helps in performance tuning in heavily concurrent environments.",
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   (gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency,
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   0, GET_LONG, REQUIRED_ARG, 20, 1, 1000, 0, 1, 0},
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  {"innodb_commit_concurrency", OPT_INNODB_THREAD_CONCURRENCY,
   "Helps in performance tuning in heavily concurrent environments.",
   (gptr*) &srv_commit_concurrency, (gptr*) &srv_commit_concurrency,
   0, GET_LONG, REQUIRED_ARG, 0, 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,
   0, GET_LONG, REQUIRED_ARG, 10000L, 0L, ~0L, 0, 1L, 0},
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#endif /* WITH_INNOBASE_STORAGE_ENGINE */
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  {"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, ~0L, MALLOC_OVERHEAD,
   IO_SIZE, 0},
  {"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,
   0, (GET_ULONG | GET_ASK_ADDR), REQUIRED_ARG, 
   300, 100, ~0L, 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, MALLOC_OVERHEAD, 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,
   GET_ULONG, REQUIRED_ARG, ~0L, IO_SIZE, ~0L, 0, IO_SIZE, 0},
  {"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,
    REQUIRED_ARG, MAX_CONNECT_ERRORS, 1, ~0L, 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,
   (gptr*) &max_system_variables.max_heap_table_size, 0, GET_ULONG,
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   REQUIRED_ARG, 16*1024*1024L, 16384, ~0L, MALLOC_OVERHEAD, 1024, 0},
  {"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_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,
    REQUIRED_ARG, ~0L, 1, ~0L, 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},
  {"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, ~0L, 0, 1, 0},
  {"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,
   REQUIRED_ARG, 0, 1, ~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,
   REQUIRED_ARG, ~0L, 1, ~0L, 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,
   GET_ULONG, REQUIRED_ARG, 256, 1, ~0L, 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,
   GET_ULONG, REQUIRED_ARG, 1, 1, ~0L, 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, ~0L, 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,
   GET_ULONG, REQUIRED_ARG, MYSQLD_NET_RETRY_COUNT, 1, ~0L, 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,
   REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ~0L, 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,
   ~0L, 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, 4096, ~0L, 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, ~0L, MALLOC_OVERHEAD, IO_SIZE, 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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   ~0L, MALLOC_OVERHEAD, IO_SIZE, 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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  {"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,
   128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE, 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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#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, ~0L, MALLOC_OVERHEAD,
   1, 0},
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#ifdef WITH_BERKELEY_STORAGE_ENGINE
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  {"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},
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#endif /* WITH_BERKELEY_STORAGE_ENGINE */
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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, ~0L, 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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#ifdef HAVE_REPLICATION
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  {"sync-replication", OPT_SYNC_REPLICATION,
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   "Enable synchronous replication.",
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   (gptr*) &global_system_variables.sync_replication,
   (gptr*) &global_system_variables.sync_replication,
   0, GET_ULONG, REQUIRED_ARG, 0, 0, 1, 0, 1, 0},
  {"sync-replication-slave-id", OPT_SYNC_REPLICATION_SLAVE_ID,
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   "Synchronous replication is wished for this slave.",
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   (gptr*) &global_system_variables.sync_replication_slave_id,
   (gptr*) &global_system_variables.sync_replication_slave_id,
   0, GET_ULONG, REQUIRED_ARG, 0, 0, ~0L, 0, 1, 0},
  {"sync-replication-timeout", OPT_SYNC_REPLICATION_TIMEOUT,
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   "Synchronous replication timeout.",
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   (gptr*) &global_system_variables.sync_replication_timeout,
   (gptr*) &global_system_variables.sync_replication_timeout,
   0, GET_ULONG, REQUIRED_ARG, 10, 0, ~0L, 0, 1, 0},
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#endif /* HAVE_REPLICATION */
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  {"table_cache", OPT_TABLE_OPEN_CACHE,
   "Deprecated; use --table_open_cache instead.",
   (gptr*) &table_cache_size, (gptr*) &table_cache_size, 0, GET_ULONG,
   REQUIRED_ARG, 64, 1, 512*1024L, 0, 1, 0},
  {"table_definition_cache", OPT_TABLE_DEF_CACHE,
   "The number of cached table definitions.",
   (gptr*) &table_def_size, (gptr*) &table_def_size,
   0, GET_ULONG, REQUIRED_ARG, 128, 1, 512*1024L, 0, 1, 0},
  {"table_open_cache", OPT_TABLE_OPEN_CACHE,
   "The number of cached open tables.",
   (gptr*) &table_cache_size, (gptr*) &table_cache_size,
   0, GET_ULONG, REQUIRED_ARG, 64, 1, 512*1024L, 0, 1, 0},
  {"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.",
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   (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,
   1024L*128L, ~0L, 0, 1024, 0},
  { "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,
   "If an 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,
   (gptr*) &max_system_variables.tmp_table_size, 0, GET_ULONG,
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   REQUIRED_ARG, 32*1024*1024L, 1024, ~0L, 0, 1, 0},
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  {"transaction_alloc_block_size", OPT_TRANS_ALLOC_BLOCK_SIZE,
   "Allocation block size for transactions to be stored in binary log",
   (gptr*) &global_system_variables.trans_alloc_block_size,
   (gptr*) &max_system_variables.trans_alloc_block_size, 0, GET_ULONG,
   REQUIRED_ARG, QUERY_ALLOC_BLOCK_SIZE, 1024, ~0L, 0, 1024, 0},
  {"transaction_prealloc_size", OPT_TRANS_PREALLOC_SIZE,
   "Persistent buffer for transactions to be stored in binary log",
   (gptr*) &global_system_variables.trans_prealloc_size,
   (gptr*) &max_system_variables.trans_prealloc_size, 0, GET_ULONG,
   REQUIRED_ARG, TRANS_ALLOC_PREALLOC_SIZE, 1024, ~0L, 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}
6022
};
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6024

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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_LONG_STATUS},
  {"Bytes_sent",               (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONG_STATUS},
  {"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},
  {"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},
  {"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},
  {"Com_execute_sql",          (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_EXECUTE]), SHOW_LONG_STATUS}, 
  {"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},
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  {"Com_show_engine_logs",     (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_LOGS]), SHOW_LONG_STATUS},
  {"Com_show_engine_mutex",    (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_MUTEX]), SHOW_LONG_STATUS},
  {"Com_show_engine_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_ENGINE_STATUS]), SHOW_LONG_STATUS},
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  {"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_keys",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_KEYS]), SHOW_LONG_STATUS},
  {"Com_show_master_status",   (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_MASTER_STAT]), SHOW_LONG_STATUS},
  {"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},
6112
  {"Com_show_triggers",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_SHOW_TRIGGERS]), SHOW_LONG_STATUS},
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  {"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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6121
  {"Com_stmt_reset",           (char*) offsetof(STATUS_VAR, com_stmt_reset), SHOW_LONG_STATUS},
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6122
  {"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},
6133
  {"Compression",              (char*) 0,                        SHOW_NET_COMPRESSION},
6134
  {"Connections",              (char*) &thread_id,              SHOW_LONG_CONST},
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6135
  {"Created_tmp_disk_tables",  (char*) offsetof(STATUS_VAR, created_tmp_disk_tables), SHOW_LONG_STATUS},
6136
  {"Created_tmp_files",	       (char*) &my_tmp_file_created,	SHOW_LONG},
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6137
  {"Created_tmp_tables",       (char*) offsetof(STATUS_VAR, created_tmp_tables), SHOW_LONG_STATUS},
6138
  {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
6139
  {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG_CONST},
6140 6141
  {"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},
6157
#ifdef WITH_INNOBASE_STORAGE_ENGINE
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  {"Innodb_",                  (char*) &innodb_status_variables, SHOW_VARS},
6159
#endif /* WITH_INNOBASE_STORAGE_ENGINE */
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  {"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},
6167
  {"Last_query_cost",          (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS},
6168
  {"Max_used_connections",     (char*) &max_used_connections,  SHOW_LONG},
6169
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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  {"Ndb_",                     (char*) &ndb_status_variables,   SHOW_VARS},
6171
#endif /* WITH_NDBCLUSTER_STORAGE_ENGINE */
6172
  {"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_table_definitions",   (char*) 0,			SHOW_TABLE_DEFINITIONS},
  {"Open_tables",              (char*) 0,                       SHOW_OPEN_TABLES},
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  {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
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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},
6182
  {"Qcache_inserts",           (char*) &query_cache.inserts,    SHOW_LONG},
6183
  {"Qcache_lowmem_prunes",     (char*) &query_cache.lowmem_prunes, SHOW_LONG},
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  {"Qcache_not_cached",        (char*) &query_cache.refused,    SHOW_LONG},
6185
  {"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*/
6188
  {"Questions",                (char*) 0,                       SHOW_QUESTION},
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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},
6195
  {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
6196
  {"Slave_retried_transactions",(char*) 0,                      SHOW_SLAVE_RETRIED_TRANS},
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  {"Slave_running",            (char*) 0,                       SHOW_SLAVE_RUNNING},
6198
  {"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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6204
#ifdef HAVE_OPENSSL
6205
  {"Ssl_accept_renegotiates",  (char*) 0, 	SHOW_SSL_CTX_SESS_ACCEPT_RENEGOTIATE},
6206
  {"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
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  {"Tc_log_max_pages_used",    (char*) &tc_log_max_pages_used,  SHOW_LONG},
  {"Tc_log_page_size",         (char*) &tc_log_page_size,       SHOW_LONG},
  {"Tc_log_page_waits",        (char*) &tc_log_page_waits,      SHOW_LONG},
6235
#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)
{
6246
  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)
{
6253
  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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");
6282
  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;
6320
  opt_log= opt_update_log= opt_slow_log= 0;
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  opt_bin_log= 0;
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  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 !
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  opt_secure_auth= 0;
  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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  aborted_threads= aborted_connects= 0;
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  delayed_insert_threads= delayed_insert_writes= delayed_rows_in_use= 0;
  delayed_insert_errors= thread_created= 0;
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  specialflag= 0;
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  binlog_cache_use=  binlog_cache_disk_use= 0;
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  max_used_connections= slow_launch_threads = 0;
  mysqld_user= mysqld_chroot= opt_init_file= opt_bin_logname = 0;
  errmesg= 0;
6348
  mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS;
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  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;
6352
  key_map_full.set_all();
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  /* Character sets */
  system_charset_info= &my_charset_utf8_general_ci;
  files_charset_info= &my_charset_utf8_general_ci;
  national_charset_info= &my_charset_utf8_general_ci;
  table_alias_charset= &my_charset_bin;

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

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  /* Things with default values that are not zero */
  delay_key_write_options= (uint) DELAY_KEY_WRITE_ON;
  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 |
6372
			OPTION_BIN_LOG | OPTION_QUOTE_SHOW_CREATE |
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			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 */
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  query_id= thread_id= 1L;
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  strmov(server_version, MYSQL_SERVER_VERSION);
  myisam_recover_options_str= sql_mode_str= "OFF";
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  myisam_stats_method_str= "nulls_unequal";
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  my_bind_addr = htonl(INADDR_ANY);
  threads.empty();
  thread_cache.empty();
6384
  key_caches.empty();
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  if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str,
6386
					       default_key_cache_base.length)))
6387
    exit(1);
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  multi_keycache_init(); /* set key_cache_hash.default_value = dflt_key_cache */
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  /* 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",
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    relay_log_info_file= (char*) "relay-log.info";
  master_ssl_key= master_ssl_cert= master_ssl_ca= 
    master_ssl_capath= master_ssl_cipher= 0;
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  report_user= report_password = report_host= 0;	/* TO BE DELETED */
  opt_relay_logname= opt_relaylog_index_name= 0;

  /* Variables in libraries */
  charsets_dir= 0;
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  default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME;
  default_collation_name= (char*) MYSQL_DEFAULT_COLLATION_NAME;
6411
  sys_charset_system.value= (char*) system_charset_info->csname;
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6413

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  /* Set default values for some option variables */
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  global_system_variables.table_type=   DB_TYPE_MYISAM;
  global_system_variables.tx_isolation= ISO_REPEATABLE_READ;
6417
  global_system_variables.select_limit= (ulonglong) HA_POS_ERROR;
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  max_system_variables.select_limit=    (ulonglong) HA_POS_ERROR;
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  global_system_variables.max_join_size= (ulonglong) HA_POS_ERROR;
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  max_system_variables.max_join_size=   (ulonglong) HA_POS_ERROR;
6421
  global_system_variables.old_passwords= 0;
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  global_system_variables.old_alter_table= 0;
6423 6424
  
  /*
6425
    Default behavior for 4.1 and 5.0 is to treat NULL values as unequal
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    when collecting index statistics for MyISAM tables.
  */
  global_system_variables.myisam_stats_method= MI_STATS_METHOD_NULLS_NOT_EQUAL;
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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);
6436
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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  have_ndbcluster=SHOW_OPTION_DISABLED;
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  global_system_variables.ndb_index_stat_enable=TRUE;
  max_system_variables.ndb_index_stat_enable=TRUE;
  global_system_variables.ndb_index_stat_cache_entries=32;
  max_system_variables.ndb_index_stat_cache_entries=~0L;
  global_system_variables.ndb_index_stat_update_freq=20;
  max_system_variables.ndb_index_stat_update_freq=~0L;
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#else
  have_ndbcluster=SHOW_OPTION_NO;
#endif
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#ifdef USE_RAID
  have_raid=SHOW_OPTION_YES;
#else
  have_raid=SHOW_OPTION_NO;
#endif
#ifdef HAVE_OPENSSL
  have_openssl=SHOW_OPTION_YES;
#else
  have_openssl=SHOW_OPTION_NO;
#endif
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#if !defined(HAVE_REALPATH) || defined(HAVE_BROKEN_REALPATH)
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  have_symlink=SHOW_OPTION_NO;
#else
  have_symlink=SHOW_OPTION_YES;
#endif
#ifdef HAVE_QUERY_CACHE
  have_query_cache=SHOW_OPTION_YES;
#else
  have_query_cache=SHOW_OPTION_NO;
#endif
6467 6468 6469 6470 6471 6472 6473 6474 6475 6476
#ifdef HAVE_SPATIAL
  have_geometry=SHOW_OPTION_YES;
#else
  have_geometry=SHOW_OPTION_NO;
#endif
#ifdef HAVE_RTREE_KEYS
  have_rtree_keys=SHOW_OPTION_YES;
#else
  have_rtree_keys=SHOW_OPTION_NO;
#endif
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#ifdef HAVE_CRYPT
  have_crypt=SHOW_OPTION_YES;
#else
  have_crypt=SHOW_OPTION_NO;
#endif
#ifdef HAVE_COMPRESS
6483
  have_compress= SHOW_OPTION_YES;
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#else
6485
  have_compress= SHOW_OPTION_NO;
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#endif
#ifdef HAVE_LIBWRAP
  libwrapName= NullS;
#endif
#ifdef HAVE_OPENSSL
  des_key_file = 0;
  ssl_acceptor_fd= 0;
#endif
#ifdef HAVE_SMEM
  shared_memory_base_name= default_shared_memory_base_name;
#endif
#if !defined(my_pthread_setprio) && !defined(HAVE_PTHREAD_SETSCHEDPARAM)
  opt_specialflag |= SPECIAL_NO_PRIOR;
#endif

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#if defined(__WIN__) || defined(__NETWARE__)
  /* Allow Win32 and NetWare users to move MySQL anywhere */
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  {
    char prg_dev[LIBLEN];
    my_path(prg_dev,my_progname,"mysql/bin");
    strcat(prg_dev,"/../");			// Remove 'bin' to get base dir
    cleanup_dirname(mysql_home,prg_dev);
  }
#else
  const char *tmpenv;
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  if (!(tmpenv = getenv("MY_BASEDIR_VERSION")))
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    tmpenv = DEFAULT_MYSQL_HOME;
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  (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1);
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#endif
}


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static my_bool
6519 6520
get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
	       char *argument)
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{
6522 6523
  switch(optid) {
  case '#':
6524
#ifndef DBUG_OFF
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    DBUG_PUSH(argument ? argument : default_dbug_option);
#endif
    opt_endinfo=1;				/* unireg: memory allocation */
    break;
  case 'a':
6530
    global_system_variables.sql_mode= fix_sql_mode(MODE_ANSI);
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    global_system_variables.tx_isolation= ISO_SERIALIZABLE;
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    break;
  case 'b':
    strmake(mysql_home,argument,sizeof(mysql_home)-1);
    break;
6536
  case 'C':
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    default_collation_name= 0;
6538
    break;
6539 6540 6541 6542 6543
  case 'l':
    opt_log=1;
    break;
  case 'h':
    strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
6544 6545
    /* Correct pointer set by my_getopt (for embedded library) */
    mysql_data_home= mysql_real_data_home;
6546
    break;
6547
  case 'u':
6548
    if (!mysqld_user || !strcmp(mysqld_user, argument))
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      mysqld_user= argument;
6550
    else
6551
      sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user);
6552
    break;
6553 6554 6555
  case 'L':
    strmake(language, argument, sizeof(language)-1);
    break;
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#ifdef HAVE_REPLICATION
6557 6558 6559
  case OPT_SLAVE_SKIP_ERRORS:
    init_slave_skip_errors(argument);
    break;
6560
#endif
6561
  case OPT_SAFEMALLOC_MEM_LIMIT:
6562
#if !defined(DBUG_OFF) && defined(SAFEMALLOC)
6563
    sf_malloc_mem_limit = atoi(argument);
6564
#endif
6565
    break;
6566
#include <sslopt-case.h>
6567 6568 6569
  case 'V':
    print_version();
    exit(0);
6570 6571 6572 6573 6574 6575 6576 6577
  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;
6578 6579
  case 'T':
    test_flags= argument ? (uint) atoi(argument) : 0;
6580
    test_flags&= ~TEST_NO_THREADS;
6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592
    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:
6593
    opt_bin_log= test(argument != disabled_my_option);
6594
    break;
6595 6596 6597
  case (int) OPT_ERROR_LOG_FILE:
    opt_error_log= 1;
    break;
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#ifdef HAVE_REPLICATION
6599
  case (int) OPT_INIT_RPL_ROLE:
6600 6601 6602
  {
    int role;
    if ((role=find_type(argument, &rpl_role_typelib, 2)) <= 0)
6603
    {
6604 6605
      fprintf(stderr, "Unknown replication role: %s\n", argument);
      exit(1);
6606
    }
6607 6608 6609
    rpl_status = (role == 1) ?  RPL_AUTH_MASTER : RPL_IDLE_SLAVE;
    break;
  }
6610
  case (int)OPT_REPLICATE_IGNORE_DB:
6611
  {
6612
    rpl_filter->add_ignore_db(argument);
6613 6614 6615 6616
    break;
  }
  case (int)OPT_REPLICATE_DO_DB:
  {
6617
    rpl_filter->add_do_db(argument);
6618 6619 6620 6621 6622
    break;
  }
  case (int)OPT_REPLICATE_REWRITE_DB:
  {
    char* key = argument,*p, *val;
6623

6624
    if (!(p= strstr(argument, "->")))
6625
    {
6626 6627 6628
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - missing '->'!\n");
      exit(1);
6629
    }
6630
    val= p--;
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    while (my_isspace(mysqld_charset, *p) && p > argument)
6632 6633
      *p-- = 0;
    if (p == argument)
6634
    {
6635 6636 6637
      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - empty FROM db!\n");
      exit(1);
6638
    }
6639 6640
    *val= 0;
    val+= 2;
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    while (*val && my_isspace(mysqld_charset, *val))
6642 6643
      *val++;
    if (!*val)
6644
    {
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      fprintf(stderr,
	      "Bad syntax in replicate-rewrite-db - empty TO db!\n");
      exit(1);
6648 6649
    }

6650
    rpl_filter->add_db_rewrite(key, val);
6651 6652 6653
    break;
  }

6654
  case (int)OPT_BINLOG_IGNORE_DB:
6655
  {
6656
    binlog_filter->add_ignore_db(argument);
6657 6658
    break;
  }
6659
  case (int)OPT_BINLOG_DO_DB:
6660
  {
6661
    binlog_filter->add_do_db(argument);
6662 6663
    break;
  }
6664
  case (int)OPT_REPLICATE_DO_TABLE:
6665
  {
6666
    if (rpl_filter->add_do_table(argument))
6667
    {
6668 6669
      fprintf(stderr, "Could not add do table rule '%s'!\n", argument);
      exit(1);
6670
    }
6671 6672
    break;
  }
6673
  case (int)OPT_REPLICATE_WILD_DO_TABLE:
6674
  {
6675
    if (rpl_filter->add_wild_do_table(argument))
6676
    {
6677 6678
      fprintf(stderr, "Could not add do table rule '%s'!\n", argument);
      exit(1);
6679
    }
6680 6681
    break;
  }
6682
  case (int)OPT_REPLICATE_WILD_IGNORE_TABLE:
6683
  {
6684
    if (rpl_filter->add_wild_ignore_table(argument))
6685
    {
6686 6687
      fprintf(stderr, "Could not add ignore table rule '%s'!\n", argument);
      exit(1);
6688
    }
6689 6690
    break;
  }
6691
  case (int)OPT_REPLICATE_IGNORE_TABLE:
6692
  {
6693
    if (rpl_filter->add_ignore_table(argument))
6694
    {
6695 6696
      fprintf(stderr, "Could not add ignore table rule '%s'!\n", argument);
      exit(1);
6697
    }
6698 6699
    break;
  }
unknown's avatar
SCRUM  
unknown committed
6700
#endif /* HAVE_REPLICATION */
6701 6702 6703
  case (int) OPT_SLOW_QUERY_LOG:
    opt_slow_log=1;
    break;
6704 6705
  case (int) OPT_SKIP_NEW:
    opt_specialflag|= SPECIAL_NO_NEW_FUNC;
6706
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
6707 6708
    myisam_concurrent_insert=0;
    myisam_recover_options= HA_RECOVER_NONE;
unknown's avatar
Merge  
unknown committed
6709
    sp_automatic_privileges=0;
6710
    my_use_symdir=0;
6711
    ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE);
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6712
#ifdef HAVE_QUERY_CACHE
6713 6714 6715 6716 6717
    query_cache_size=0;
#endif
    break;
  case (int) OPT_SAFE:
    opt_specialflag|= SPECIAL_SAFE_MODE;
6718
    delay_key_write_options= (uint) DELAY_KEY_WRITE_NONE;
6719 6720
    myisam_recover_options= HA_RECOVER_DEFAULT;
    ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE);
6721 6722 6723 6724 6725
    break;
  case (int) OPT_SKIP_PRIOR:
    opt_specialflag|= SPECIAL_NO_PRIOR;
    break;
  case (int) OPT_SKIP_LOCK:
6726
    opt_external_locking=0;
6727 6728 6729 6730 6731 6732 6733 6734
    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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6735 6736 6737
#if defined(__NETWARE__)
    sql_perror("Can't start server: skip-networking option is currently not supported on NetWare");
    exit(1);
6738
#endif
6739
    opt_disable_networking=1;
6740
    mysqld_port=0;
6741 6742 6743 6744 6745
    break;
  case (int) OPT_SKIP_SHOW_DB:
    opt_skip_show_db=1;
    opt_specialflag|=SPECIAL_SKIP_SHOW_DB;
    break;
6746
#ifdef ONE_THREAD
6747 6748
  case (int) OPT_ONE_THREAD:
    test_flags |= TEST_NO_THREADS;
6749
#endif
6750 6751 6752 6753 6754 6755 6756 6757 6758 6759 6760
    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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6761
    if ((my_bind_addr= (ulong) inet_addr(argument)) == INADDR_NONE)
6762 6763
    {
      struct hostent *ent;
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6764
      if (argument[0])
6765
	ent=gethostbyname(argument);
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6766 6767
      else
      {
6768 6769
	char myhostname[255];
	if (gethostname(myhostname,sizeof(myhostname)) < 0)
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6770
	{
6771
	  sql_perror("Can't start server: cannot get my own hostname!");
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6772 6773
	  exit(1);
	}
6774
	ent=gethostbyname(myhostname);
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6775
      }
6776 6777 6778 6779 6780 6781 6782 6783 6784 6785 6786
      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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6787
#ifdef __WIN__
6788 6789
  case (int) OPT_STANDALONE:		/* Dummy option for NT */
    break;
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6790
#endif
6791 6792 6793 6794
  case OPT_CONSOLE:
    if (opt_console)
      opt_error_log= 0;			// Force logs to stdout
    break;
6795 6796 6797 6798 6799 6800
  case (int) OPT_FLUSH:
    myisam_flush=1;
    flush_time=0;			// No auto flush
    break;
  case OPT_LOW_PRIORITY_UPDATES:
    thr_upgraded_concurrent_insert_lock= TL_WRITE_LOW_PRIORITY;
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6801
    global_system_variables.low_priority_updates=1;
6802 6803 6804 6805
    break;
  case OPT_BOOTSTRAP:
    opt_noacl=opt_bootstrap=1;
    break;
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6806
  case OPT_STORAGE_ENGINE:
6807
  {
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6808
    if ((enum db_type)((global_system_variables.table_type=
6809 6810
                        ha_resolve_by_name(argument, strlen(argument)))) ==
        DB_TYPE_UNKNOWN)
unknown's avatar
unknown committed
6811
    {
6812
      fprintf(stderr,"Unknown/unsupported table type: %s\n",argument);
6813
      exit(1);
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6814
    }
6815 6816
    break;
  }
6817 6818 6819
  case OPT_SERVER_ID:
    server_id_supplied = 1;
    break;
6820 6821 6822 6823
  case OPT_DELAY_KEY_WRITE_ALL:
    if (argument != disabled_my_option)
      argument= (char*) "ALL";
    /* Fall through */
6824
  case OPT_DELAY_KEY_WRITE:
6825 6826 6827 6828 6829 6830 6831 6832 6833 6834 6835 6836 6837 6838
    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;
    }
6839 6840 6841 6842 6843 6844
    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:
6845 6846 6847
  {
    int type;
    if ((type=find_type(argument, &tx_isolation_typelib, 2)) <= 0)
unknown's avatar
unknown committed
6848
    {
6849 6850
      fprintf(stderr,"Unknown transaction isolation type: %s\n",argument);
      exit(1);
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6851
    }
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6852
    global_system_variables.tx_isolation= (type-1);
6853 6854
    break;
  }
6855
#ifdef WITH_BERKELEY_STORAGE_ENGINE
6856
  case OPT_BDB_NOSYNC:
6857 6858 6859 6860 6861
    /* Deprecated option */
    opt_sync_bdb_logs= 0;
    /* Fall through */
  case OPT_BDB_SYNC:
    if (!opt_sync_bdb_logs)
6862
      berkeley_env_flags|= bdb_DB_TXN_NOSYNC;
6863
    else
6864
      berkeley_env_flags&= ~bdb_DB_TXN_NOSYNC;
6865 6866
    break;
  case OPT_BDB_NO_RECOVER:
6867
    berkeley_init_flags&= ~(bdb_DB_RECOVER);
6868 6869
    break;
  case OPT_BDB_LOCK:
6870 6871 6872 6873 6874
  {
    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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6875
    {
6876
      int err;
6877 6878
      char *end;
      uint length= strlen(argument);
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6879
      long value= my_strntol(&my_charset_latin1, argument, length, 10, &end, &err);
unknown's avatar
Merge  
unknown committed
6880
      if (end == argument+length)
6881
	berkeley_lock_scan_time= value;
unknown's avatar
unknown committed
6882 6883
      else
      {
6884 6885
	fprintf(stderr,"Unknown lock type: %s\n",argument);
	exit(1);
unknown's avatar
unknown committed
6886 6887
      }
    }
6888 6889
    break;
  }
6890
  case OPT_BDB_SHARED:
6891
    berkeley_init_flags&= ~(bdb_DB_PRIVATE);
unknown's avatar
unknown committed
6892
    berkeley_shared_data= 1;
6893
    break;
6894
#endif /* WITH_BERKELEY_STORAGE_ENGINE */
6895
  case OPT_BDB:
6896
#ifdef WITH_BERKELEY_STORAGE_ENGINE
6897
    if (opt_bdb)
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6898
      have_berkeley_db= SHOW_OPTION_YES;
6899
    else
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6900
      have_berkeley_db= SHOW_OPTION_DISABLED;
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6901 6902 6903
#endif
    break;
  case OPT_NDBCLUSTER:
6904
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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6905
    if (opt_ndbcluster)
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6906
      have_ndbcluster= SHOW_OPTION_YES;
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6907
    else
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6908
      have_ndbcluster= SHOW_OPTION_DISABLED;
6909 6910
#endif
    break;
6911
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
unknown's avatar
Merge  
unknown committed
6912 6913 6914 6915 6916 6917 6918 6919 6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934
  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;
6935 6936 6937 6938 6939 6940 6941 6942 6943 6944 6945 6946 6947 6948
  case OPT_NDB_DISTRIBUTION:
    int id;
    if ((id= find_type(argument, &ndb_distribution_typelib, 2)) <= 0)
    {
      fprintf(stderr, 
	      "Unknown ndb distribution type: '%s' "
	      "(should be '%s' or '%s')\n", 
	      argument,
              ndb_distribution_names[ND_KEYHASH],
              ndb_distribution_names[ND_LINHASH]);
      exit(1);
    }
    opt_ndb_distribution_id= (enum ndb_distribution)(id-1);
    break;
unknown's avatar
Merge  
unknown committed
6949
#endif
6950
  case OPT_INNODB:
6951
#ifdef WITH_INNOBASE_STORAGE_ENGINE
6952
    if (opt_innodb)
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unknown committed
6953
      have_innodb= SHOW_OPTION_YES;
6954
    else
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6955
      have_innodb= SHOW_OPTION_DISABLED;
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unknown committed
6956
#endif
6957 6958
    break;
  case OPT_INNODB_DATA_FILE_PATH:
6959
#ifdef WITH_INNOBASE_STORAGE_ENGINE
unknown's avatar
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6960
    innobase_data_file_path= argument;
6961
#endif
6962
    break;
6963
#ifdef WITH_INNOBASE_STORAGE_ENGINE
6964 6965 6966
  case OPT_INNODB_LOG_ARCHIVE:
    innobase_log_archive= argument ? test(atoi(argument)) : 1;
    break;
6967
#endif /* WITH_INNOBASE_STORAGE_ENGINE */
6968
  case OPT_MYISAM_RECOVER:
6969 6970
  {
    if (!argument || !argument[0])
6971
    {
6972 6973
      myisam_recover_options=    HA_RECOVER_DEFAULT;
      myisam_recover_options_str= myisam_recover_typelib.type_names[0];
6974
    }
6975
    else
6976
    {
6977 6978 6979
      myisam_recover_options_str=argument;
      if ((myisam_recover_options=
	   find_bit_type(argument, &myisam_recover_typelib)) == ~(ulong) 0)
6980
      {
6981
	fprintf(stderr, "Unknown option to myisam-recover: %s\n",argument);
6982 6983 6984
	exit(1);
      }
    }
6985 6986 6987
    ha_open_options|=HA_OPEN_ABORT_IF_CRASHED;
    break;
  }
6988 6989 6990 6991 6992 6993 6994
  case OPT_CONCURRENT_INSERT:
    /* The following code is mainly here to emulate old behavior */
    if (!argument)                      /* --concurrent-insert */
      myisam_concurrent_insert= 1;
    else if (argument == disabled_my_option)
      myisam_concurrent_insert= 0;      /* --skip-concurrent-insert */
    break;
unknown's avatar
Merge  
unknown committed
6995 6996 6997 6998 6999 7000 7001 7002
  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);
    }
unknown's avatar
unknown committed
7003
  }
7004 7005
  case OPT_MYISAM_STATS_METHOD:
  {
7006
    ulong method_conv;
7007
    int method;
unknown's avatar
unknown committed
7008 7009
    LINT_INIT(method_conv);

7010 7011 7012 7013 7014 7015
    myisam_stats_method_str= argument;
    if ((method=find_type(argument, &myisam_stats_method_typelib, 2)) <= 0)
    {
      fprintf(stderr, "Invalid value of myisam_stats_method: %s.\n", argument);
      exit(1);
    }
7016 7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027
    switch (method-1) {
    case 0: 
      method_conv= MI_STATS_METHOD_NULLS_EQUAL;
      break;
    case 1:
      method_conv= MI_STATS_METHOD_NULLS_NOT_EQUAL;
      break;
    case 2:
      method_conv= MI_STATS_METHOD_IGNORE_NULLS;
      break;
    }
    global_system_variables.myisam_stats_method= method_conv;
unknown's avatar
Merge  
unknown committed
7028 7029
    break;
  }
7030 7031
  case OPT_SQL_MODE:
  {
7032 7033 7034
    sql_mode_str= argument;
    if ((global_system_variables.sql_mode=
         find_bit_type(argument, &sql_mode_typelib)) == ~(ulong) 0)
7035 7036 7037 7038
    {
      fprintf(stderr, "Unknown option to sql-mode: %s\n", argument);
      exit(1);
    }
7039 7040
    global_system_variables.sql_mode= fix_sql_mode(global_system_variables.
						   sql_mode);
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7041
    break;
7042
  }
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7043
  case OPT_FT_BOOLEAN_SYNTAX:
7044
    if (ft_boolean_check_syntax_string((byte*) argument))
unknown's avatar
unknown committed
7045 7046 7047 7048
    {
      fprintf(stderr, "Invalid ft-boolean-syntax string: %s\n", argument);
      exit(1);
    }
7049
    strmake(ft_boolean_syntax, argument, sizeof(ft_boolean_syntax)-1);
7050 7051
    break;
  case OPT_SKIP_SAFEMALLOC:
7052
#ifdef SAFEMALLOC
7053
    sf_malloc_quick=1;
7054
#endif
7055
    break;
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7056 7057
  case OPT_LOWER_CASE_TABLE_NAMES:
    lower_case_table_names= argument ? atoi(argument) : 1;
7058
    lower_case_table_names_used= 1;
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unknown committed
7059
    break;
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7060
  }
7061 7062 7063
  return 0;
}
	/* Initiates DEBUG - but no debugging here ! */
7064

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7065
static gptr *
7066
mysql_getopt_value(const char *keyname, uint key_length,
7067 7068
		   const struct my_option *option)
{
7069 7070
  switch (option->id) {
  case OPT_KEY_BUFFER_SIZE:
unknown's avatar
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7071
  case OPT_KEY_CACHE_BLOCK_SIZE:
7072 7073
  case OPT_KEY_CACHE_DIVISION_LIMIT:
  case OPT_KEY_CACHE_AGE_THRESHOLD:
7074
  {
unknown's avatar
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7075
    KEY_CACHE *key_cache;
7076 7077
    if (!(key_cache= get_or_create_key_cache(keyname, key_length)))
      exit(1);
7078 7079
    switch (option->id) {
    case OPT_KEY_BUFFER_SIZE:
unknown's avatar
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7080
      return (gptr*) &key_cache->param_buff_size;
7081
    case OPT_KEY_CACHE_BLOCK_SIZE:
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7082
      return (gptr*) &key_cache->param_block_size;
7083
    case OPT_KEY_CACHE_DIVISION_LIMIT:
unknown's avatar
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7084
      return (gptr*) &key_cache->param_division_limit;
7085
    case OPT_KEY_CACHE_AGE_THRESHOLD:
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7086
      return (gptr*) &key_cache->param_age_threshold;
7087
    }
7088 7089
  }
  }
7090
 return option->value;
7091 7092
}

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7093

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7094
static void option_error_reporter(enum loglevel level, const char *format, ...)
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7095
{
7096
  va_list args;
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7097 7098 7099
  va_start(args, format);
  vprint_msg_to_log(level, format, args);
  va_end(args);
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7100
}
7101

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7102

7103 7104 7105 7106
static void get_options(int argc,char **argv)
{
  int ho_error;

7107
  my_getopt_register_get_addr(mysql_getopt_value);
7108
  strmake(def_ft_boolean_syntax, ft_boolean_syntax,
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7109
	  sizeof(ft_boolean_syntax)-1);
7110
  my_getopt_error_reporter= option_error_reporter;
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7111 7112
  if ((ho_error= handle_options(&argc, &argv, my_long_options,
                                get_one_option)))
7113
    exit(ho_error);
7114

7115
#ifndef WITH_NDBCLUSTER_STORAGE_ENGINE
7116 7117 7118
  if (opt_ndbcluster)
    sql_print_warning("this binary does not contain NDBCLUSTER storage engine");
#endif
7119
#ifndef WITH_INNOBASE_STORAGE_ENGINE
7120 7121 7122
  if (opt_innodb)
    sql_print_warning("this binary does not contain INNODB storage engine");
#endif
7123
#ifndef WITH_ISAM_STORAGE_ENGINE
7124 7125 7126
  if (opt_isam)
    sql_print_warning("this binary does not contain ISAM storage engine");
#endif
7127
#ifndef WITH_BERKELEY_STORAGE_ENGINE
7128 7129 7130
  if (opt_bdb)
    sql_print_warning("this binary does not contain BDB storage engine");
#endif
7131 7132 7133
  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");
7134

7135 7136
  if (argc > 0)
  {
7137
    fprintf(stderr, "%s: Too many arguments (first extra is '%s').\nUse --help to get a list of available options\n", my_progname, *argv);
unknown's avatar
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7138 7139
    /* FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code? */
    exit(1);
7140
  }
7141

7142
  if (opt_help)
7143 7144 7145 7146
  {
    usage();
    exit(0);
  }
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7147
#if !defined(HAVE_REALPATH) || defined(HAVE_BROKEN_REALPATH)
7148 7149 7150 7151 7152 7153 7154 7155 7156 7157
  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
7158 7159 7160 7161 7162 7163
  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;
  }
7164 7165 7166
  /* Set global MyISAM variables from delay_key_write_options */
  fix_delay_key_write((THD*) 0, OPT_GLOBAL);

7167
#ifndef EMBEDDED_LIBRARY
7168 7169
  if (mysqld_chroot)
    set_root(mysqld_chroot);
7170 7171 7172
#else
  max_allowed_packet= global_system_variables.max_allowed_packet;
  net_buffer_length= global_system_variables.net_buffer_length;
7173
#endif
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7174
  fix_paths();
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7175

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  /*
    Set some global variables from the global_system_variables
    In most cases the global variables will not be used
  */
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  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;
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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);
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  if (opt_short_log_format)
    opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;
  if (opt_log_queries_not_using_indexes)
    opt_specialflag|= SPECIAL_LOG_QUERIES_NOT_USING_INDEXES;
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  if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE,
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				  &global_system_variables.date_format) ||
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      init_global_datetime_format(MYSQL_TIMESTAMP_TIME,
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				  &global_system_variables.time_format) ||
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      init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME,
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				  &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,
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                     MYSQL_SERVER_SUFFIX_STR, NullS);
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#ifdef EMBEDDED_LIBRARY
  end= strmov(end, "-embedded");
#endif
#ifndef DBUG_OFF
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  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) &&
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      is_prefix(path,DEFAULT_MYSQL_HOME) &&
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      strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR))
  {
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    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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static void fix_paths(void)
{
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  char buff[FN_REFLEN],*pos;
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  convert_dirname(mysql_home,mysql_home,NullS);
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  /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */
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  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;
  }
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  convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS);
  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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  strmake(opt_plugin_dir, get_relative_path(LIBDIR),
          sizeof(opt_plugin_dir) - 1);
  opt_plugin_dir_ptr= opt_plugin_dir;
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  (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr, mysql_home);
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  char *sharedir=get_relative_path(SHAREDIR);
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  if (test_if_hard_path(sharedir))
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    strmake(buff,sharedir,sizeof(buff)-1);		/* purecov: tested */
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  else
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    strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS);
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  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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  }
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  (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff);
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  convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS);
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  charsets_dir=mysql_charsets_dir;
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  if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir))
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    exit(1);
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#ifdef HAVE_REPLICATION
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  if (!slave_load_tmpdir)
  {
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    if (!(slave_load_tmpdir = (char*) my_strdup(mysql_tmpdir, MYF(MY_FAE))))
      exit(1);
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  }
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#endif /* HAVE_REPLICATION */
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}


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/*
  Return a bitfield from a string of substrings separated by ','
  returns ~(ulong) 0 on error.
*/
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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;
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  while (*pos == ' ') pos++;
  found_end= *pos == 0;
  while (!found_end)
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  {
    if (!*(end=strcend(pos,',')))		/* Let end point at fieldend */
    {
      while (end > pos && end[-1] == ' ')
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	end--;					/* Skip end-space */
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      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)
      {
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	if (my_toupper(mysqld_charset,*i++) !=
            my_toupper(mysqld_charset,*j++))
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	  goto skip;
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      }
      found_int=bit;
      if (! *i)
      {
	found_count=1;
	break;
      }
      else if (j != pos)			// Half field found
      {
	found_count++;				// Could be one of two values
      }
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skip: ;
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    }
    if (found_count != 1)
      DBUG_RETURN(~(ulong) 0);				// No unique value
    found|=found_int;
    pos=end+1;
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  }
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  DBUG_PRINT("exit",("bit-field: %ld",(ulong) found));
  DBUG_RETURN(found);
} /* find_bit_type */


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/*
  Check if file system used for databases is case insensitive

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


/* Create file to store pid number */

static void create_pid_file()
{
  File file;
  if ((file = my_create(pidfile_name,0664,
			O_WRONLY | O_TRUNC, MYF(MY_WME))) >= 0)
  {
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    char buff[21], *end;
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    end= int10_to_str((long) getpid(), buff, 10);
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    *end++= '\n';
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    if (!my_write(file, (byte*) buff, (uint) (end-buff), MYF(MY_WME | MY_NABP)))
    {
      (void) my_close(file, MYF(0));
      return;
    }
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    (void) my_close(file, MYF(0));
  }
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  sql_perror("Can't start server: can't create PID file");
  exit(1);  
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}


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/*****************************************************************************
  Instantiate have_xyx for missing storage engines
*****************************************************************************/
#undef have_isam
#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_isam= 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;

#ifndef WITH_BERKELEY_STORAGE_ENGINE
bool berkeley_shared_data;
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ulong berkeley_max_lock, berkeley_log_buffer_size;
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ulonglong berkeley_cache_size;
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ulong berkeley_region_size, berkeley_cache_parts;
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char *berkeley_home, *berkeley_tmpdir, *berkeley_logdir;
#endif

#ifndef WITH_INNOBASE_STORAGE_ENGINE
uint innobase_flush_log_at_trx_commit;
ulong innobase_fast_shutdown;
long innobase_mirrored_log_groups, innobase_log_files_in_group;
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longlong innobase_log_file_size;
long innobase_log_buffer_size;
longlong innobase_buffer_pool_size;
long innobase_additional_mem_pool_size;
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long innobase_buffer_pool_awe_mem_mb;
long innobase_file_io_threads, innobase_lock_wait_timeout;
long innobase_force_recovery;
long innobase_open_files;
char *innobase_data_home_dir, *innobase_data_file_path;
char *innobase_log_group_home_dir, *innobase_log_arch_dir;
char *innobase_unix_file_flush_method;
my_bool innobase_log_archive,
        innobase_use_doublewrite,
        innobase_use_checksums,
        innobase_file_per_table,
        innobase_locks_unsafe_for_binlog;

ulong srv_max_buf_pool_modified_pct;
ulong srv_max_purge_lag;
ulong srv_auto_extend_increment;
ulong srv_n_spin_wait_rounds;
ulong srv_n_free_tickets_to_enter;
ulong srv_thread_sleep_delay;
ulong srv_thread_concurrency;
ulong srv_commit_concurrency;
#endif

#ifndef WITH_NDBCLUSTER_STORAGE_ENGINE
ulong ndb_cache_check_time;
#endif

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

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