mysqld.cc 258 KB
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/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
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   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; version 2 of the License.
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   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

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#include "my_global.h"                          /* NO_EMBEDDED_ACCESS_CHECKS */
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#include "sql_priv.h"
#include "unireg.h"
#include <signal.h>
#ifndef __WIN__
#include <netdb.h>        // getservbyname, servent
#endif
#include "sql_parse.h"    // test_if_data_home_dir
#include "sql_cache.h"    // query_cache, query_cache_*
#include "sql_locale.h"   // MY_LOCALES, my_locales, my_locale_by_name
#include "sql_show.h"     // free_status_vars, add_status_vars,
                          // reset_status_vars
#include "strfunc.h"      // find_set_from_flags
#include "parse_file.h"   // File_parser_dummy_hook
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#include "sql_db.h"       // my_dboptions_cache_free
                          // my_dboptions_cache_init
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#include "sql_table.h"    // release_ddl_log, execute_ddl_log_recovery
#include "sql_connect.h"  // free_max_user_conn, init_max_user_conn,
                          // handle_one_connection
#include "sql_time.h"     // known_date_time_formats,
                          // get_date_time_format_str,
                          // date_time_format_make
#include "tztime.h"       // my_tz_free, my_tz_init, my_tz_SYSTEM
#include "hostname.h"     // hostname_cache_free, hostname_cache_init
#include "sql_acl.h"      // acl_free, grant_free, acl_init,
                          // grant_init
#include "sql_base.h"     // table_def_free, table_def_init,
                          // cached_open_tables,
                          // cached_table_definitions
#include "sql_test.h"     // mysql_print_status
#include "item_create.h"  // item_create_cleanup, item_create_init
#include "sql_servers.h"  // servers_free, servers_init
#include "init.h"         // unireg_init
#include "derror.h"       // init_errmessage
#include "derror.h"       // init_errmessage
#include "des_key_file.h" // load_des_key_file
#include "sql_manager.h"  // stop_handle_manager, start_handle_manager
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#include <m_ctype.h>
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#include <my_dir.h>
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#include <my_bit.h>
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#include "slave.h"
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#include "rpl_mi.h"
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#include "sql_repl.h"
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#include "rpl_filter.h"
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#include "repl_failsafe.h"
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#include <sql_common.h>
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#include <my_stacktrace.h>
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#include "mysqld_suffix.h"
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#include "mysys_err.h"
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#include "events.h"
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#include "sql_audit.h"
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#include "probes_mysql.h"
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#include "scheduler.h"
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#include "debug_sync.h"
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#include "sql_callback.h"
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#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
#include "../storage/perfschema/pfs_server.h"
#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */

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#include "keycaches.h"
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#include "../storage/myisam/ha_myisam.h"
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#include "set_var.h"
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#include "rpl_injector.h"

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#include "rpl_handler.h"

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

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#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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#include "sql_reload.h"  // reload_acl_and_cache
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#ifdef HAVE_POLL_H
#include <poll.h>
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#endif

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#define mysqld_charset &my_charset_latin1
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/* We have HAVE_purify below as this speeds up the shutdown of MySQL */

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

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

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#ifdef HAVE_SOLARIS_LARGE_PAGES
#include <sys/mman.h>
#if defined(__sun__) && defined(__GNUC__) && defined(__cplusplus) \
    && defined(_XOPEN_SOURCE)
extern int getpagesizes(size_t *, int);
extern int getpagesizes2(size_t *, int);
extern int memcntl(caddr_t, size_t, int, caddr_t, int, int);
#endif /* __sun__ ... */
#endif /* HAVE_SOLARIS_LARGE_PAGES */

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#ifdef _AIX41
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int initgroups(const char *,unsigned int);
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#endif

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#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H)
#include <ieeefp.h>
#ifdef HAVE_FP_EXCEPT				// Fix type conflict
typedef fp_except fp_except_t;
#endif
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#endif /* __FreeBSD__ && HAVE_IEEEFP_H */
#ifdef HAVE_SYS_FPU_H
/* for IRIX to use set_fpc_csr() */
#include <sys/fpu.h>
#endif
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#ifdef HAVE_FPU_CONTROL_H
#include <fpu_control.h>
#endif
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#if defined(__i386__) && !defined(HAVE_FPU_CONTROL_H)
# define fpu_control_t unsigned int
# define _FPU_EXTENDED 0x300
# define _FPU_DOUBLE 0x200
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# if defined(__GNUC__) || (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x590)
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#  define _FPU_GETCW(cw) asm volatile ("fnstcw %0" : "=m" (*&cw))
#  define _FPU_SETCW(cw) asm volatile ("fldcw %0" : : "m" (*&cw))
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# else
#  define _FPU_GETCW(cw) (cw= 0)
#  define _FPU_SETCW(cw)
# endif
#endif
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extern "C" my_bool reopen_fstreams(const char *filename,
                                   FILE *outstream, FILE *errstream);

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inline void setup_fpu()
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{
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#if defined(__FreeBSD__) && defined(HAVE_IEEEFP_H)
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  /* We can't handle floating point exceptions with threads, so disable
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     this on freebsd
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     Don't fall for overflow, underflow,divide-by-zero or loss of precision
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  */
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#if defined(__i386__)
  fpsetmask(~(FP_X_INV | FP_X_DNML | FP_X_OFL | FP_X_UFL | FP_X_DZ |
	      FP_X_IMP));
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#else
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  fpsetmask(~(FP_X_INV |             FP_X_OFL | FP_X_UFL | FP_X_DZ |
              FP_X_IMP));
#endif /* __i386__ */
#endif /* __FreeBSD__ && HAVE_IEEEFP_H */
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#ifdef HAVE_FESETROUND
    /* Set FPU rounding mode to "round-to-nearest" */
  fesetround(FE_TONEAREST);
#endif /* HAVE_FESETROUND */
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  /*
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    x86 (32-bit) requires FPU precision to be explicitly set to 64 bit
    (double precision) for portable results of floating point operations.
    However, there is no need to do so if compiler is using SSE2 for floating
    point, double values will be stored and processed in 64 bits anyway.
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  */
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#if defined(__i386__) && !defined(__SSE2_MATH__)
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#if defined(_WIN32)
#if !defined(_WIN64)
  _control87(_PC_53, MCW_PC);
#endif /* !_WIN64 */
#else /* !_WIN32 */
  fpu_control_t cw;
  _FPU_GETCW(cw);
  cw= (cw & ~_FPU_EXTENDED) | _FPU_DOUBLE;
  _FPU_SETCW(cw);
#endif /* _WIN32 && */
#endif /* __i386__ */

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#if defined(__sgi) && defined(HAVE_SYS_FPU_H)
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  /* Enable denormalized DOUBLE values support for IRIX */
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  union fpc_csr n;
  n.fc_word = get_fpc_csr();
  n.fc_struct.flush = 0;
  set_fpc_csr(n.fc_word);
#endif
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}
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} /* cplusplus */

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

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

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

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/* Constants */
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#include <welcome_copyright_notice.h> // ORACLE_WELCOME_COPYRIGHT_NOTICE

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const char *show_comp_option_name[]= {"YES", "NO", "DISABLED"};
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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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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 */

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#ifdef HAVE_PSI_INTERFACE
#if (defined(_WIN32) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
static PSI_thread_key key_thread_handle_con_namedpipes;
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static PSI_cond_key key_COND_handler_count;
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#endif /* _WIN32 || HAVE_SMEM && !EMBEDDED_LIBRARY */

#if defined(HAVE_SMEM) && !defined(EMBEDDED_LIBRARY)
static PSI_thread_key key_thread_handle_con_sharedmem;
#endif /* HAVE_SMEM && !EMBEDDED_LIBRARY */

#if (defined(_WIN32) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
static PSI_thread_key key_thread_handle_con_sockets;
#endif /* _WIN32 || HAVE_SMEM && !EMBEDDED_LIBRARY */

#ifdef __WIN__
static PSI_thread_key key_thread_handle_shutdown;
#endif /* __WIN__ */
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#if defined (HAVE_OPENSSL) && !defined(HAVE_YASSL)
static PSI_rwlock_key key_rwlock_openssl;
#endif
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#endif /* HAVE_PSI_INTERFACE */

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/* the default log output is log tables */
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static bool lower_case_table_names_used= 0;
static bool volatile select_thread_in_use, signal_thread_in_use;
static bool volatile ready_to_exit;
static my_bool opt_debugging= 0, opt_external_locking= 0, opt_console= 0;
static my_bool opt_short_log_format= 0;
static uint kill_cached_threads, wake_thread;
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static ulong killed_threads;
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static ulong max_used_connections;
static volatile ulong cached_thread_count= 0;
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static char *mysqld_user, *mysqld_chroot;
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static char *default_character_set_name;
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static char *character_set_filesystem_name;
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static char *lc_messages;
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static char *lc_time_names_name;
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static char *my_bind_addr_str;
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static char *default_collation_name;
char *default_storage_engine;
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static char compiled_default_collation_name[]= MYSQL_DEFAULT_COLLATION_NAME;
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static I_List<THD> thread_cache;
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static bool binlog_format_used= false;

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

  At the same time, we can't start the event scheduler after
  bootstrap either, since we want to be able to process event-related
  SQL commands in the init file and in --bootstrap mode.
*/
bool in_bootstrap= FALSE;
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/**
   @brief 'grant_option' is used to indicate if privileges needs
   to be checked, in which case the lock, LOCK_grant, is used
   to protect access to the grant table.
   @note This flag is dropped in 5.1 
   @see grant_init()
 */
bool volatile grant_option;
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my_bool opt_skip_slave_start = 0; ///< If set, slave is not autostarted
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my_bool opt_reckless_slave = 0;
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my_bool opt_enable_named_pipe= 0;
my_bool opt_local_infile, opt_slave_compressed_protocol;
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my_bool opt_safe_user_create = 0;
my_bool opt_show_slave_auth_info;
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my_bool opt_log_slave_updates= 0;
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char *opt_slave_skip_errors;

/**
  compatibility option:
    - index usage hints (USE INDEX without a FOR clause) behave as in 5.0
*/
my_bool old_mode;
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/*
  Legacy global handlerton. These will be removed (please do not add more).
*/
handlerton *heap_hton;
handlerton *myisam_hton;
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handlerton *partition_hton;
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my_bool opt_readonly= 0, use_temp_pool, relay_log_purge;
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my_bool relay_log_recovery;
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my_bool opt_sync_frm, opt_allow_suspicious_udfs;
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my_bool opt_secure_auth= 0;
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char* opt_secure_file_priv;
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my_bool opt_log_slow_admin_statements= 0;
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my_bool opt_log_slow_slave_statements= 0;
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my_bool lower_case_file_system= 0;
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my_bool opt_large_pages= 0;
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my_bool opt_super_large_pages= 0;
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my_bool opt_myisam_use_mmap= 0;
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uint   opt_large_page_size= 0;
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#if defined(ENABLED_DEBUG_SYNC)
uint    opt_debug_sync_timeout= 0;
#endif /* defined(ENABLED_DEBUG_SYNC) */
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my_bool opt_old_style_user_limits= 0, trust_function_creators= 0;
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/*
  True if there is at least one per-hour limit for some user, so we should
  check them before each query (and possibly reset counters when hour is
  changed). False otherwise.
*/
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volatile bool mqh_used = 0;
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my_bool opt_noacl;
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my_bool sp_automatic_privileges= 1;
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ulong opt_binlog_rows_event_max_size;
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const char *binlog_format_names[]= {"MIXED", "STATEMENT", "ROW", NullS};
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#ifdef HAVE_INITGROUPS
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static bool calling_initgroups= FALSE; /**< Used in SIGSEGV handler. */
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#endif
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uint mysqld_port, test_flags, select_errors, dropping_tables, ha_open_options;
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uint mysqld_port_timeout;
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ulong delay_key_write_options;
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uint protocol_version;
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uint lower_case_table_names;
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ulong tc_heuristic_recover= 0;
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uint volatile thread_count;
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int32 thread_running;
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ulong thread_created;
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ulong back_log, connect_timeout, concurrency, server_id;
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ulong table_cache_size, table_def_size;
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ulong what_to_log;
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ulong 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_trans_retries;
uint  slave_net_timeout;
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ulong slave_exec_mode_options;
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ulonglong slave_type_conversions_options;
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ulong thread_cache_size=0;
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ulong binlog_cache_size=0;
ulonglong  max_binlog_cache_size=0;
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ulong binlog_stmt_cache_size=0;
ulonglong  max_binlog_stmt_cache_size=0;
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ulong query_cache_size=0;
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ulong refresh_version;  /* Increments on each reload */
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query_id_t global_query_id;
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my_atomic_rwlock_t global_query_id_lock;
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my_atomic_rwlock_t thread_running_lock;
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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 binlog_stmt_cache_use= 0, binlog_stmt_cache_disk_use= 0;
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ulong max_connections, max_connect_errors;
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/**
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  Limit of the total number of prepared statements in the server.
  Is necessary to protect the server against out-of-memory attacks.
*/
ulong max_prepared_stmt_count;
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/**
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  Current total number of prepared statements in the server. This number
  is exact, and therefore may not be equal to the difference between
  `com_stmt_prepare' and `com_stmt_close' (global status variables), as
  the latter ones account for all registered attempts to prepare
  a statement (including unsuccessful ones).  Prepared statements are
  currently connection-local: if the same SQL query text is prepared in
  two different connections, this counts as two distinct prepared
  statements.
*/
ulong prepared_stmt_count=0;
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ulong thread_id=1L,current_pid;
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ulong slow_launch_threads = 0;
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uint sync_binlog_period= 0, sync_relaylog_period= 0,
     sync_relayloginfo_period= 0, sync_masterinfo_period= 0;
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ulong expire_logs_days = 0;
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ulong rpl_recovery_rank=0;

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const double log_10[] = {
  1e000, 1e001, 1e002, 1e003, 1e004, 1e005, 1e006, 1e007, 1e008, 1e009,
  1e010, 1e011, 1e012, 1e013, 1e014, 1e015, 1e016, 1e017, 1e018, 1e019,
  1e020, 1e021, 1e022, 1e023, 1e024, 1e025, 1e026, 1e027, 1e028, 1e029,
  1e030, 1e031, 1e032, 1e033, 1e034, 1e035, 1e036, 1e037, 1e038, 1e039,
  1e040, 1e041, 1e042, 1e043, 1e044, 1e045, 1e046, 1e047, 1e048, 1e049,
  1e050, 1e051, 1e052, 1e053, 1e054, 1e055, 1e056, 1e057, 1e058, 1e059,
  1e060, 1e061, 1e062, 1e063, 1e064, 1e065, 1e066, 1e067, 1e068, 1e069,
  1e070, 1e071, 1e072, 1e073, 1e074, 1e075, 1e076, 1e077, 1e078, 1e079,
  1e080, 1e081, 1e082, 1e083, 1e084, 1e085, 1e086, 1e087, 1e088, 1e089,
  1e090, 1e091, 1e092, 1e093, 1e094, 1e095, 1e096, 1e097, 1e098, 1e099,
  1e100, 1e101, 1e102, 1e103, 1e104, 1e105, 1e106, 1e107, 1e108, 1e109,
  1e110, 1e111, 1e112, 1e113, 1e114, 1e115, 1e116, 1e117, 1e118, 1e119,
  1e120, 1e121, 1e122, 1e123, 1e124, 1e125, 1e126, 1e127, 1e128, 1e129,
  1e130, 1e131, 1e132, 1e133, 1e134, 1e135, 1e136, 1e137, 1e138, 1e139,
  1e140, 1e141, 1e142, 1e143, 1e144, 1e145, 1e146, 1e147, 1e148, 1e149,
  1e150, 1e151, 1e152, 1e153, 1e154, 1e155, 1e156, 1e157, 1e158, 1e159,
  1e160, 1e161, 1e162, 1e163, 1e164, 1e165, 1e166, 1e167, 1e168, 1e169,
  1e170, 1e171, 1e172, 1e173, 1e174, 1e175, 1e176, 1e177, 1e178, 1e179,
  1e180, 1e181, 1e182, 1e183, 1e184, 1e185, 1e186, 1e187, 1e188, 1e189,
  1e190, 1e191, 1e192, 1e193, 1e194, 1e195, 1e196, 1e197, 1e198, 1e199,
  1e200, 1e201, 1e202, 1e203, 1e204, 1e205, 1e206, 1e207, 1e208, 1e209,
  1e210, 1e211, 1e212, 1e213, 1e214, 1e215, 1e216, 1e217, 1e218, 1e219,
  1e220, 1e221, 1e222, 1e223, 1e224, 1e225, 1e226, 1e227, 1e228, 1e229,
  1e230, 1e231, 1e232, 1e233, 1e234, 1e235, 1e236, 1e237, 1e238, 1e239,
  1e240, 1e241, 1e242, 1e243, 1e244, 1e245, 1e246, 1e247, 1e248, 1e249,
  1e250, 1e251, 1e252, 1e253, 1e254, 1e255, 1e256, 1e257, 1e258, 1e259,
  1e260, 1e261, 1e262, 1e263, 1e264, 1e265, 1e266, 1e267, 1e268, 1e269,
  1e270, 1e271, 1e272, 1e273, 1e274, 1e275, 1e276, 1e277, 1e278, 1e279,
  1e280, 1e281, 1e282, 1e283, 1e284, 1e285, 1e286, 1e287, 1e288, 1e289,
  1e290, 1e291, 1e292, 1e293, 1e294, 1e295, 1e296, 1e297, 1e298, 1e299,
  1e300, 1e301, 1e302, 1e303, 1e304, 1e305, 1e306, 1e307, 1e308
};
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time_t server_start_time, flush_status_time;
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char mysql_home[FN_REFLEN], pidfile_name[FN_REFLEN], system_time_zone[30];
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char default_logfile_name[FN_REFLEN];
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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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     lc_messages_dir[FN_REFLEN], reg_ext[FN_EXTLEN],
     mysql_charsets_dir[FN_REFLEN],
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     *opt_init_file, *opt_tc_log_file;
char *lc_messages_dir_ptr, *log_error_file_ptr;
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char mysql_unpacked_real_data_home[FN_REFLEN];
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int mysql_unpacked_real_data_home_len;
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uint mysql_real_data_home_len, mysql_data_home_len= 1;
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uint reg_ext_length;
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const key_map key_map_empty(0);
key_map key_map_full(0);                        // Will be initialized later

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DATE_TIME_FORMAT global_date_format, global_datetime_format, global_time_format;
Time_zone *default_tz;
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char *mysql_data_home= const_cast<char*>(".");
const char *mysql_real_data_home_ptr= 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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ulong thread_handling;
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/** name of reference on left expression in rewritten IN subquery */
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const char *in_left_expr_name= "<left expr>";
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/** name of additional condition */
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const char *in_additional_cond= "<IN COND>";
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const char *in_having_cond= "<IN HAVING>";

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

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MYSQL_FILE *bootstrap_file;
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int bootstrap_error;
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I_List<THD> threads;
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Rpl_filter* rpl_filter;
Rpl_filter* binlog_filter;
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struct system_variables global_system_variables;
struct system_variables max_system_variables;
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struct system_status_var global_status_var;
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MY_TMPDIR mysql_tmpdir_list;
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MY_BITMAP temp_pool;
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CHARSET_INFO *system_charset_info, *files_charset_info ;
CHARSET_INFO *national_charset_info, *table_alias_charset;
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CHARSET_INFO *character_set_filesystem;
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CHARSET_INFO *error_message_charset_info;
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MY_LOCALE *my_default_lc_messages;
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MY_LOCALE *my_default_lc_time_names;

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SHOW_COMP_OPTION have_ssl, have_symlink, have_dlopen, have_query_cache;
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SHOW_COMP_OPTION have_geometry, have_rtree_keys;
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SHOW_COMP_OPTION have_crypt, have_compress;
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SHOW_COMP_OPTION have_profiling;
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/* Thread specific variables */
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pthread_key(MEM_ROOT**,THR_MALLOC);
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pthread_key(THD*, THR_THD);
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mysql_mutex_t LOCK_thread_count;
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mysql_mutex_t
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  LOCK_status, LOCK_global_read_lock,
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  LOCK_error_log, LOCK_uuid_generator,
  LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create,
  LOCK_crypt,
  LOCK_global_system_variables,
  LOCK_user_conn, LOCK_slave_list, LOCK_active_mi,
  LOCK_connection_count, LOCK_error_messages;
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/**
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  The below lock protects access to two global server variables:
  max_prepared_stmt_count and prepared_stmt_count. These variables
  set the limit and hold the current total number of prepared statements
  in the server, respectively. As PREPARE/DEALLOCATE rate in a loaded
  server may be fairly high, we need a dedicated lock.
*/
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mysql_mutex_t LOCK_prepared_stmt_count;
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#ifdef HAVE_OPENSSL
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mysql_mutex_t LOCK_des_key_file;
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#endif
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mysql_rwlock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
mysql_rwlock_t LOCK_system_variables_hash;
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mysql_cond_t COND_thread_count;
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mysql_cond_t COND_global_read_lock;
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pthread_t signal_thread;
pthread_attr_t connection_attrib;
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mysql_mutex_t LOCK_server_started;
mysql_cond_t COND_server_started;
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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 report_port= MYSQL_PORT;
ulong master_retry_count=0;
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char *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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char *opt_logname, *opt_slow_logname;
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/* Static variables */

static bool kill_in_progress, segfaulted;
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static my_bool opt_bootstrap, opt_myisam_log;
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static int cleanup_done;
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static ulong opt_specialflag;
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static char *opt_update_logname, *opt_binlog_index_name;
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char *mysql_home_ptr, *pidfile_name_ptr;
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/** Initial command line arguments (count), after load_defaults().*/
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static int defaults_argc;
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/**
  Initial command line arguments (arguments), after load_defaults().
  This memory is allocated by @c load_defaults() and should be freed
  using @c free_defaults().
  Do not modify defaults_argc / defaults_argv,
  use remaining_argc / remaining_argv instead to parse the command
  line arguments in multiple steps.
*/
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static char **defaults_argv;
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/** Remaining command line arguments (count), filtered by handle_options().*/
static int remaining_argc;
/** Remaining command line arguments (arguments), filtered by handle_options().*/
static char **remaining_argv;
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static char *opt_bin_logname;

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int orig_argc;
char **orig_argv;

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/*
  Since buffered_option_error_reporter is only used currently
  for parsing performance schema options, this code is not needed
  when the performance schema is not compiled in.
*/
#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
/**
  A log message for the error log, buffered in memory.
  Log messages are temporarily buffered when generated before the error log
  is initialized, and then printed once the error log is ready.
*/
class Buffered_log : public Sql_alloc
{
public:
  Buffered_log(enum loglevel level, const char *message);

  ~Buffered_log()
  {}

  void print(void);

private:
  /** Log message level. */
  enum loglevel m_level;
  /** Log message text. */
  String m_message;
};

/**
  Constructor.
  @param level          the message log level
  @param message        the message text
*/
Buffered_log::Buffered_log(enum loglevel level, const char *message)
  : m_level(level), m_message()
{
  m_message.copy(message, strlen(message), &my_charset_latin1);
}

/**
  Print a buffered log to the real log file.
*/
void Buffered_log::print()
{
  /*
    Since messages are buffered, they can be printed out
    of order with other entries in the log.
    Add "Buffered xxx" to the message text to prevent confusion.
  */
  switch(m_level)
  {
  case ERROR_LEVEL:
    sql_print_error("Buffered error: %s\n", m_message.c_ptr_safe());
    break;
  case WARNING_LEVEL:
    sql_print_warning("Buffered warning: %s\n", m_message.c_ptr_safe());
    break;
  case INFORMATION_LEVEL:
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    /*
      Messages printed as "information" still end up in the mysqld *error* log,
      but with a [Note] tag instead of an [ERROR] tag.
      While this is probably fine for a human reading the log,
      it is upsetting existing automated scripts used to parse logs,
      because such scripts are likely to not already handle [Note] properly.
      INFORMATION_LEVEL messages are simply silenced, on purpose,
      to avoid un needed verbosity.
    */
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    break;
  }
}

/**
  Collection of all the buffered log messages.
*/
class Buffered_logs
{
public:
  Buffered_logs()
  {}

  ~Buffered_logs()
  {}

  void init();
  void cleanup();

  void buffer(enum loglevel m_level, const char *msg);
  void print();
private:
  /**
    Memory root to use to store buffered logs.
    This memory root lifespan is between init and cleanup.
    Once the buffered logs are printed, they are not needed anymore,
    and all the memory used is reclaimed.
  */
  MEM_ROOT m_root;
  /** List of buffered log messages. */
  List<Buffered_log> m_list;
};

void Buffered_logs::init()
{
  init_alloc_root(&m_root, 1024, 0);
}

void Buffered_logs::cleanup()
{
  m_list.delete_elements();
  free_root(&m_root, MYF(0));
}

/**
  Add a log message to the buffer.
*/
void Buffered_logs::buffer(enum loglevel level, const char *msg)
{
  /*
    Do not let Sql_alloc::operator new(size_t) allocate memory,
    there is no memory root associated with the main() thread.
    Give explicitly the proper memory root to use to
    Sql_alloc::operator new(size_t, MEM_ROOT *) instead.
  */
  Buffered_log *log= new (&m_root) Buffered_log(level, msg);
  if (log)
    m_list.push_back(log, &m_root);
}

/**
  Print buffered log messages.
*/
void Buffered_logs::print()
{
  Buffered_log *log;
  List_iterator_fast<Buffered_log> it(m_list);
  while ((log= it++))
    log->print();
}

/** Logs reported before a logger is available. */
static Buffered_logs buffered_logs;

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#ifndef EMBEDDED_LIBRARY
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/**
  Error reporter that buffer log messages.
  @param level          log message level
  @param format         log message format string
*/
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C_MODE_START
static void buffered_option_error_reporter(enum loglevel level,
                                           const char *format, ...)
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{
  va_list args;
  char buffer[1024];

  va_start(args, format);
  my_vsnprintf(buffer, sizeof(buffer), format, args);
  va_end(args);
  buffered_logs.buffer(level, buffer);
}
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C_MODE_END
#endif /* !EMBEDDED_LIBRARY */
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#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */

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

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/* OS specific variables */

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

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

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#ifdef _WIN32
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static char pipe_name[512];
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static SECURITY_ATTRIBUTES saPipeSecurity;
static SECURITY_DESCRIPTOR sdPipeDescriptor;
static HANDLE hPipe = INVALID_HANDLE_VALUE;
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#endif
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#ifndef EMBEDDED_LIBRARY
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bool mysqld_embedded=0;
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#else
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bool mysqld_embedded=1;
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#endif

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static my_bool plugins_are_initialized= FALSE;

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

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my_bool opt_use_ssl  = 0;
char *opt_ssl_ca= NULL, *opt_ssl_capath= NULL, *opt_ssl_cert= NULL,
     *opt_ssl_cipher= NULL, *opt_ssl_key= NULL;

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#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
{
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  mysql_rwlock_t lock;
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} openssl_lock_t;

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

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

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pthread_handler_t signal_hand(void *arg);
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static int mysql_init_variables(void);
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static int get_options(int *argc_ptr, char ***argv_ptr);
static bool add_terminator(DYNAMIC_ARRAY *options);
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extern "C" my_bool mysqld_get_one_option(int, const struct my_option *, char *);
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static void set_server_version(void);
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static int init_thread_environment();
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static char *get_relative_path(const char *path);
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static int fix_paths(void);
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void handle_connections_sockets();
#ifdef _WIN32
pthread_handler_t handle_connections_sockets_thread(void *arg);
#endif
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pthread_handler_t kill_server_thread(void *arg);
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static void bootstrap(MYSQL_FILE *file);
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static bool read_init_file(char *file_name);
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#ifdef _WIN32
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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 void clean_up(bool print_message);
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static int test_if_case_insensitive(const char *dir_name);

#ifndef EMBEDDED_LIBRARY
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static void usage(void);
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static void start_signal_handler(void);
static void close_server_sock();
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static void clean_up_mutexes(void);
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static void wait_for_signal_thread_to_end(void);
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static void create_pid_file();
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static void mysqld_exit(int exit_code) __attribute__((noreturn));
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#endif
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static void end_ssl();
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#ifndef EMBEDDED_LIBRARY
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/****************************************************************************
** Code to end mysqld
****************************************************************************/

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

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

  /* kill connection thread */
990
#if !defined(__WIN__)
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  DBUG_PRINT("quit", ("waiting for select thread: 0x%lx",
                      (ulong) select_thread));
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  mysql_mutex_lock(&LOCK_thread_count);
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  while (select_thread_in_use)
  {
    struct timespec abstime;
    int error;
    LINT_INIT(error);
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    DBUG_PRINT("info",("Waiting for select thread"));
1001

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#ifndef DONT_USE_THR_ALARM
1003
    if (pthread_kill(select_thread, thr_client_alarm))
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      break;					// allready dead
#endif
1006
    set_timespec(abstime, 2);
1007
    for (uint tmp=0 ; tmp < 10 && select_thread_in_use; tmp++)
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    {
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      error= mysql_cond_timedwait(&COND_thread_count, &LOCK_thread_count,
                                  &abstime);
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      if (error != EINTR)
	break;
    }
#ifdef EXTRA_DEBUG
    if (error != 0 && !count++)
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      sql_print_error("Got error %d from mysql_cond_timedwait", error);
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#endif
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    close_server_sock();
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  }
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  mysql_mutex_unlock(&LOCK_thread_count);
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#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)
    {
1030
      (void) shutdown(ip_sock, SHUT_RDWR);
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      (void) closesocket(ip_sock);
      ip_sock= INVALID_SOCKET;
    }
  }
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#ifdef _WIN32
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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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1039
    DBUG_PRINT("quit", ("Closing named pipes") );
1040

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    /* Create connection to the handle named pipe handler to break the loop */
1042
    if ((temp = CreateFile(pipe_name,
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			   GENERIC_READ | GENERIC_WRITE,
			   0,
			   NULL,
			   OPEN_EXISTING,
			   0,
			   NULL )) != INVALID_HANDLE_VALUE)
    {
1050
      WaitNamedPipe(pipe_name, 1000);
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1051 1052 1053 1054 1055 1056
      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)
  {
1062
    (void) shutdown(unix_sock, SHUT_RDWR);
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    (void) closesocket(unix_sock);
1064
    (void) unlink(mysqld_unix_port);
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    unix_sock= INVALID_SOCKET;
  }
#endif
1068
  end_thr_alarm(0);			 // Abort old alarms.
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1070 1071 1072 1073 1074
  /*
    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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1075 1076

  THD *tmp;
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  mysql_mutex_lock(&LOCK_thread_count); // For unlink from list
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1078 1079 1080 1081 1082 1083

  I_List_iterator<THD> it(threads);
  while ((tmp=it++))
  {
    DBUG_PRINT("quit",("Informing thread %ld that it's time to die",
		       tmp->thread_id));
1084
    /* We skip slave threads & scheduler on this first loop through. */
1085
    if (tmp->slave_thread)
1086
      continue;
1087

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    tmp->killed= THD::KILL_CONNECTION;
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    MYSQL_CALLBACK(thread_scheduler, post_kill_notification, (tmp));
    mysql_mutex_lock(&tmp->LOCK_thd_data);
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    if (tmp->mysys_var)
    {
      tmp->mysys_var->abort=1;
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      mysql_mutex_lock(&tmp->mysys_var->mutex);
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      if (tmp->mysys_var->current_cond)
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      {
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        mysql_mutex_lock(tmp->mysys_var->current_mutex);
        mysql_cond_broadcast(tmp->mysys_var->current_cond);
        mysql_mutex_unlock(tmp->mysys_var->current_mutex);
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      }
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      mysql_mutex_unlock(&tmp->mysys_var->mutex);
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    }
1103
    mysql_mutex_unlock(&tmp->LOCK_thd_data);
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  }
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  mysql_mutex_unlock(&LOCK_thread_count); // For unlink from list
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1107
  Events::deinit();
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  end_slave();

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  if (thread_count)
1111
    sleep(2);					// Give threads time to die
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1113 1114 1115 1116 1117
  /*
    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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1118 1119 1120 1121

  for (;;)
  {
    DBUG_PRINT("quit",("Locking LOCK_thread_count"));
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1122
    mysql_mutex_lock(&LOCK_thread_count); // For unlink from list
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    if (!(tmp=threads.get()))
    {
      DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
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      mysql_mutex_unlock(&LOCK_thread_count);
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      break;
    }
#ifndef __bsdi__				// Bug in BSDI kernel
1130
    if (tmp->vio_ok())
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    {
1132
      if (global_system_variables.log_warnings)
1133
        sql_print_warning(ER_DEFAULT(ER_FORCING_CLOSE),my_progname,
1134
                          tmp->thread_id,
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                          (tmp->main_security_ctx.user ?
                           tmp->main_security_ctx.user : ""));
1137
      close_connection(tmp,0,0);
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    }
#endif
    DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
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1141
    mysql_mutex_unlock(&LOCK_thread_count);
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  }
  /* All threads has now been aborted */
  DBUG_PRINT("quit",("Waiting for threads to die (count=%u)",thread_count));
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1145
  mysql_mutex_lock(&LOCK_thread_count);
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  while (thread_count)
  {
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1148
    mysql_cond_wait(&COND_thread_count, &LOCK_thread_count);
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    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
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1151
  mysql_mutex_unlock(&LOCK_thread_count);
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1152

1153
  close_active_mi();
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  DBUG_PRINT("quit",("close_connections thread"));
  DBUG_VOID_RETURN;
}

1158

1159
static void close_server_sock()
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{
1161
#ifdef HAVE_CLOSE_SERVER_SOCK
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  DBUG_ENTER("close_server_sock");
1163 1164 1165
  my_socket tmp_sock;
  tmp_sock=ip_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
    ip_sock=INVALID_SOCKET;
1168
    DBUG_PRINT("info",("calling shutdown on TCP/IP socket"));
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    (void) shutdown(tmp_sock, SHUT_RDWR);
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  }
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  tmp_sock=unix_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
1174
    unix_sock=INVALID_SOCKET;
1175
    DBUG_PRINT("info",("calling shutdown on unix socket"));
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1176 1177
    (void) shutdown(tmp_sock, SHUT_RDWR);
    (void) unlink(mysqld_unix_port);
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1178 1179 1180
  }
  DBUG_VOID_RETURN;
#endif
1181
}
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1183 1184
#endif /*EMBEDDED_LIBRARY*/

1185

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

1190
#if defined(SIGNALS_DONT_BREAK_READ) && !defined(EMBEDDED_LIBRARY)
1191 1192
  abort_loop=1;					// Break connection loops
  close_server_sock();				// Force accept to wake up
1193
#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()));
    }
1202 1203 1204 1205 1206 1207
    /*
      or:
      HANDLE hEvent=OpenEvent(0, FALSE, "MySqlShutdown");
      SetEvent(hEventShutdown);
      CloseHandle(hEvent);
    */
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1208
  }
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#endif
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1210
#elif defined(HAVE_PTHREAD_KILL)
1211
  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)
1216
  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
1221
  if (!kill_in_progress)
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  {
    pthread_t tmp;
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    abort_loop=1;
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    if (mysql_thread_create(0, /* Not instrumented */
                            &tmp, &connection_attrib, kill_server_thread,
                            (void*) 0))
1228
      sql_print_error("Can't create thread to kill server");
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  }
1230
#endif
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1231
  DBUG_VOID_RETURN;
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}

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/**
  Force server down. Kill all connections and threads and exit.
1236

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  @param  sig_ptr       Signal number that caused kill_server to be called.
1238

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  @note
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    A signal number of 0 mean that the function was not called
    from a signal handler and there is thus no signal to block
    or stop, we just want to kill the server.
*/
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1244

1245
#if !defined(__WIN__)
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static void *kill_server(void *sig_ptr)
1247
#define RETURN_FROM_KILL_SERVER return 0
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#else
static void __cdecl kill_server(int sig_ptr)
1250
#define RETURN_FROM_KILL_SERVER return
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#endif
{
  DBUG_ENTER("kill_server");
1254
#ifndef EMBEDDED_LIBRARY
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Merge  
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1255
  int sig=(int) (long) sig_ptr;			// This is passed a int
1256
  // if there is a signal during the kill in progress, ignore the other
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  if (kill_in_progress)				// Safety
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  {
    DBUG_LEAVE;
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    RETURN_FROM_KILL_SERVER;
1261
  }
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  kill_in_progress=TRUE;
  abort_loop=1;					// This should be set
1264
  if (sig != 0) // 0 is not a valid signal number
1265
    my_sigset(sig, SIG_IGN);                    /* purify inspected */
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  if (sig == MYSQL_KILL_SIGNAL || sig == 0)
1267
    sql_print_information(ER_DEFAULT(ER_NORMAL_SHUTDOWN),my_progname);
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  else
1269
    sql_print_error(ER_DEFAULT(ER_GOT_SIGNAL),my_progname,sig); /* purecov: inspected */
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1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282
#if defined(HAVE_SMEM) && defined(__WIN__)    
  /*    
   Send event to smem_event_connect_request for aborting    
   */    
  if (!SetEvent(smem_event_connect_request))    
  {      
	  DBUG_PRINT("error",
		("Got error: %ld from SetEvent of smem_event_connect_request",
		 GetLastError()));    
  }
#endif  
  
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  close_connections();
1284 1285
  if (sig != MYSQL_KILL_SIGNAL &&
      sig != 0)
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    unireg_abort(1);				/* purecov: inspected */
  else
1288
    unireg_end();
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Merge  
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1289

1290
  /* purecov: begin deadcode */
1291
  DBUG_LEAVE;                                   // Must match DBUG_ENTER()
1292
  my_thread_end();
1293 1294
  pthread_exit(0);
  /* purecov: end */
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1296 1297 1298 1299 1300
  RETURN_FROM_KILL_SERVER;                      // Avoid compiler warnings

#else /* EMBEDDED_LIBRARY*/

  DBUG_LEAVE;
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  RETURN_FROM_KILL_SERVER;
1302 1303

#endif /* EMBEDDED_LIBRARY */
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}


1307
#if defined(USE_ONE_SIGNAL_HAND)
1308
pthread_handler_t kill_server_thread(void *arg __attribute__((unused)))
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{
  my_thread_init();				// Initialize new thread
  kill_server(0);
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  /* purecov: begin deadcode */
  my_thread_end();
  pthread_exit(0);
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  return 0;
1316
  /* purecov: end */
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}
#endif

1320

1321
extern "C" sig_handler print_signal_warning(int sig)
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1322
{
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  if (global_system_variables.log_warnings)
1324
    sql_print_warning("Got signal %d from thread %ld", sig,my_thread_id());
1325
#ifdef SIGNAL_HANDLER_RESET_ON_DELIVERY
1326
  my_sigset(sig,print_signal_warning);		/* int. thread system calls */
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#endif
1328
#if !defined(__WIN__)
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1329 1330 1331 1332 1333
  if (sig == SIGALRM)
    alarm(2);					/* reschedule alarm */
#endif
}

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#ifndef EMBEDDED_LIBRARY
1335

1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347
static void init_error_log_mutex()
{
  mysql_mutex_init(key_LOCK_error_log, &LOCK_error_log, MY_MUTEX_INIT_FAST);
}


static void clean_up_error_log_mutex()
{
  mysql_mutex_destroy(&LOCK_error_log);
}


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/**
  cleanup all memory and end program nicely.
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1351 1352 1353
    If SIGNALS_DONT_BREAK_READ is defined, this function is called
    by the main thread. To get MySQL to shut down nicely in this case
    (Mac OS X) we have to call exit() instead if pthread_exit().
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  @note
    This function never returns.
*/
1358
void unireg_end(void)
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1359
{
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  clean_up(1);
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  my_thread_end();
1362
#if defined(SIGNALS_DONT_BREAK_READ)
1363 1364
  exit(0);
#else
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  pthread_exit(0);				// Exit is in main thread
1366
#endif
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}

1369

1370
extern "C" void unireg_abort(int exit_code)
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1371
{
1372
  DBUG_ENTER("unireg_abort");
1373

1374 1375
  if (opt_help)
    usage();
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1376 1377
  if (exit_code)
    sql_print_error("Aborting\n");
1378
  clean_up(!opt_help && (exit_code || !opt_bootstrap)); /* purecov: inspected */
1379
  DBUG_PRINT("quit",("done with cleanup in unireg_abort"));
1380 1381 1382 1383 1384
  mysqld_exit(exit_code);
}

static void mysqld_exit(int exit_code)
{
1385 1386 1387 1388 1389
  /*
    Important note: we wait for the signal thread to end,
    but if a kill -15 signal was sent, the signal thread did
    spawn the kill_server_thread thread, which is running concurrently.
  */
1390
  wait_for_signal_thread_to_end();
1391
  mysql_audit_finalize();
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1392
  clean_up_mutexes();
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1393
  clean_up_error_log_mutex();
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#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
  /*
    Bug#56666 needs to be fixed before calling:
    shutdown_performance_schema();
  */
#endif
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  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
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  exit(exit_code); /* purecov: inspected */
}
1403

1404
#endif /* !EMBEDDED_LIBRARY */
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1405

1406
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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1412
  stop_handle_manager();
1413 1414
  release_ddl_log();

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

1423
  injector::free_instance();
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  mysql_bin_log.cleanup();

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1426
#ifdef HAVE_REPLICATION
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  if (use_slave_mask)
    bitmap_free(&slave_error_mask);
1429
#endif
1430
  my_tz_free();
1431
  my_dboptions_cache_free();
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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  servers_free(1);
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  acl_free(1);
  grant_free();
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#endif
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  query_cache_destroy();
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  hostname_cache_free();
  item_user_lock_free();
  lex_free();				/* Free some memory */
1441
  item_create_cleanup();
1442
  free_charsets();
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1443
  if (!opt_noacl)
1444
  {
1445
#ifdef HAVE_DLOPEN
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1446
    udf_free();
1447
#endif
1448
  }
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  table_def_start_shutdown();
1450
  plugin_shutdown();
1451
  ha_end();
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  if (tc_log)
    tc_log->close();
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  delegates_destroy();
1455
  xid_cache_free();
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  table_def_free();
  mdl_destroy();
1458
  key_caches.delete_elements((void (*)(const char*, uchar*)) free_key_cache);
1459
  multi_keycache_free();
1460
  free_status_vars();
1461
  end_thr_alarm(1);			/* Free allocated memory */
1462
  my_free_open_file_info();
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  if (defaults_argv)
    free_defaults(defaults_argv);
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  free_tmpdir(&mysql_tmpdir_list);
1466
  my_free(opt_bin_logname);
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  bitmap_free(&temp_pool);
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  free_max_user_conn();
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1469
#ifdef HAVE_REPLICATION
1470
  end_slave_list();
1471
#endif
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  delete binlog_filter;
  delete rpl_filter;
1474
  end_ssl();
1475
  vio_end();
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  my_regex_end();
1477 1478 1479 1480
#if defined(ENABLED_DEBUG_SYNC)
  /* End the debug sync facility. See debug_sync.cc. */
  debug_sync_end();
#endif /* defined(ENABLED_DEBUG_SYNC) */
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1482
#if !defined(EMBEDDED_LIBRARY)
1483
  if (!opt_bootstrap)
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1484
    mysql_file_delete(key_file_pid, pidfile_name, MYF(0)); // This may not always exist
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#endif
1486
  if (print_message && my_default_lc_messages && server_start_time)
1487 1488
    sql_print_information(ER_DEFAULT(ER_SHUTDOWN_COMPLETE),my_progname);
  cleanup_errmsgs();
1489
  MYSQL_CALLBACK(thread_scheduler, end, ());
1490
  mysql_client_plugin_deinit();
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1491
  finish_client_errs();
1492
  (void) my_error_unregister(ER_ERROR_FIRST, ER_ERROR_LAST); // finish server errs
1493
  DBUG_PRINT("quit", ("Error messages freed"));
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1494
  /* Tell main we are ready */
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1495
  logger.cleanup_end();
1496
  my_atomic_rwlock_destroy(&global_query_id_lock);
1497
  my_atomic_rwlock_destroy(&thread_running_lock);
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1498
  mysql_mutex_lock(&LOCK_thread_count);
1499
  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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1502 1503
  mysql_cond_broadcast(&COND_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
1504
  sys_var_end();
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1505

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  /*
    The following lines may never be executed as the main thread may have
    killed us
  */
1510
  DBUG_PRINT("quit", ("done with cleanup"));
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} /* clean_up */


1514 1515
#ifndef EMBEDDED_LIBRARY

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/**
1517
  This is mainly needed when running with purify, but it's still nice to
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  know that all child threads have died when mysqld exits.
1519 1520 1521 1522 1523 1524 1525 1526 1527 1528
*/
static void wait_for_signal_thread_to_end()
{
  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++)
  {
1529
    if (pthread_kill(signal_thread, MYSQL_KILL_SIGNAL) != ESRCH)
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      break;
    my_sleep(100);				// Give it time to die
  }
}


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static void clean_up_mutexes()
{
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1538
  mysql_rwlock_destroy(&LOCK_grant);
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1539
  mysql_mutex_destroy(&LOCK_thread_count);
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  mysql_mutex_destroy(&LOCK_status);
  mysql_mutex_destroy(&LOCK_delayed_insert);
  mysql_mutex_destroy(&LOCK_delayed_status);
  mysql_mutex_destroy(&LOCK_delayed_create);
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1544 1545 1546 1547
  mysql_mutex_destroy(&LOCK_manager);
  mysql_mutex_destroy(&LOCK_crypt);
  mysql_mutex_destroy(&LOCK_user_conn);
  mysql_mutex_destroy(&LOCK_connection_count);
1548
  Events::destroy_mutexes();
1549
#ifdef HAVE_OPENSSL
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1550
  mysql_mutex_destroy(&LOCK_des_key_file);
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1551
#ifndef HAVE_YASSL
1552
  for (int i= 0; i < CRYPTO_num_locks(); ++i)
1553
    mysql_rwlock_destroy(&openssl_stdlocks[i].lock);
1554
  OPENSSL_free(openssl_stdlocks);
1555 1556
#endif
#endif
1557
#ifdef HAVE_REPLICATION
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1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569
  mysql_mutex_destroy(&LOCK_rpl_status);
  mysql_cond_destroy(&COND_rpl_status);
#endif
  mysql_mutex_destroy(&LOCK_active_mi);
  mysql_rwlock_destroy(&LOCK_sys_init_connect);
  mysql_rwlock_destroy(&LOCK_sys_init_slave);
  mysql_mutex_destroy(&LOCK_global_system_variables);
  mysql_rwlock_destroy(&LOCK_system_variables_hash);
  mysql_mutex_destroy(&LOCK_global_read_lock);
  mysql_mutex_destroy(&LOCK_uuid_generator);
  mysql_mutex_destroy(&LOCK_prepared_stmt_count);
  mysql_mutex_destroy(&LOCK_error_messages);
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  mysql_cond_destroy(&COND_thread_count);
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  mysql_cond_destroy(&COND_global_read_lock);
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  mysql_cond_destroy(&COND_thread_cache);
  mysql_cond_destroy(&COND_flush_thread_cache);
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  mysql_cond_destroy(&COND_manager);
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}
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#endif /*EMBEDDED_LIBRARY*/


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

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#ifndef EMBEDDED_LIBRARY
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static void set_ports()
{
  char	*env;
1587
  if (!mysqld_port && !opt_disable_networking)
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  {					// Get port if not from commandline
1589
    mysqld_port= MYSQL_PORT;
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    /*
      if builder specifically requested a default port, use that
      (even if it coincides with our factory default).
      only if they didn't do we check /etc/services (and, failing
      on that, fall back to the factory default of 3306).
      either default can be overridden by the environment variable
      MYSQL_TCP_PORT, which in turn can be overridden with command
      line options.
    */

#if MYSQL_PORT_DEFAULT == 0
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    struct  servent *serv_ptr;
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    if ((serv_ptr= getservbyname("mysql", "tcp")))
      mysqld_port= ntohs((u_short) serv_ptr->s_port); /* purecov: inspected */
1605
#endif
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    if ((env = getenv("MYSQL_TCP_PORT")))
1607
      mysqld_port= (uint) atoi(env);		/* purecov: inspected */
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  }
1609
  if (!mysqld_unix_port)
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  {
#ifdef __WIN__
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    mysqld_unix_port= (char*) MYSQL_NAMEDPIPE;
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#else
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    mysqld_unix_port= (char*) MYSQL_UNIX_ADDR;
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#endif
    if ((env = getenv("MYSQL_UNIX_PORT")))
1617
      mysqld_unix_port= env;			/* purecov: inspected */
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  }
}

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

1623
static struct passwd *check_user(const char *user)
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{
1625
#if !defined(__WIN__)
1626
  struct passwd *tmp_user_info;
1627
  uid_t user_id= geteuid();
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1629
  // Don't bother if we aren't superuser
1630
  if (user_id)
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  {
    if (user)
1633
    {
1634 1635 1636 1637
      /* Don't give a warning, if real user is same as given with --user */
      /* purecov: begin tested */
      tmp_user_info= getpwnam(user);
      if ((!tmp_user_info || user_id != tmp_user_info->pw_uid) &&
1638
	  global_system_variables.log_warnings)
1639 1640
        sql_print_warning(
                    "One can only use the --user switch if running as root\n");
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1641
      /* purecov: end */
1642
    }
1643
    return NULL;
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  }
1645
  if (!user)
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  {
    if (!opt_bootstrap)
    {
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1649
      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);
    }
1652
    return NULL;
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1653
  }
1654
  /* purecov: begin tested */
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1655
  if (!strcmp(user,"root"))
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    return NULL;                        // Avoid problem with dynamic libraries
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1658
  if (!(tmp_user_info= getpwnam(user)))
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1659
  {
1660
    // 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
1664
      goto err;
1665
    if (!(tmp_user_info= getpwuid(atoi(user))))
1666
      goto err;
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1667
  }
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  return tmp_user_info;
  /* purecov: end */
1670 1671

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);
1673
  unireg_abort(1);
1674 1675 1676 1677 1678 1679 1680 1681 1682

#ifdef PR_SET_DUMPABLE
  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    /* inform kernel that process is dumpable */
    (void) prctl(PR_SET_DUMPABLE, 1);
  }
#endif

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#endif
  return NULL;
1685 1686
}

1687
static void set_user(const char *user, struct passwd *user_info_arg)
1688
{
1689
  /* purecov: begin tested */
1690
#if !defined(__WIN__)
1691
  DBUG_ASSERT(user_info_arg != 0);
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#ifdef HAVE_INITGROUPS
1693 1694 1695 1696 1697 1698 1699
  /*
    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;
1700
  initgroups((char*) user, user_info_arg->pw_gid);
1701
  calling_initgroups= FALSE;
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1702
#endif
1703
  if (setgid(user_info_arg->pw_gid) == -1)
1704 1705 1706
  {
    sql_perror("setgid");
    unireg_abort(1);
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1707
  }
1708
  if (setuid(user_info_arg->pw_uid) == -1)
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  {
    sql_perror("setuid");
    unireg_abort(1);
  }
#endif
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  /* purecov: end */
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}

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1718
static void set_effective_user(struct passwd *user_info_arg)
1719
{
1720
#if !defined(__WIN__)
1721 1722
  DBUG_ASSERT(user_info_arg != 0);
  if (setregid((gid_t)-1, user_info_arg->pw_gid) == -1)
1723
  {
1724
    sql_perror("setregid");
1725
    unireg_abort(1);
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1726
  }
1727
  if (setreuid((uid_t)-1, user_info_arg->pw_uid) == -1)
1728
  {
1729
    sql_perror("setreuid");
1730 1731 1732 1733 1734 1735
    unireg_abort(1);
  }
#endif
}


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/** Change root user if started with @c --chroot . */
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static void set_root(const char *path)
{
1739
#if !defined(__WIN__)
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  if (chroot(path) == -1)
  {
    sql_perror("chroot");
    unireg_abort(1);
  }
1745
  my_setwd("/", MYF(0));
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#endif
}

1749

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1750
static void network_init(void)
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{
#ifdef HAVE_SYS_UN_H
  struct sockaddr_un	UNIXaddr;
#endif
1755
  int	arg;
1756 1757 1758 1759
  int   ret;
  uint  waited;
  uint  this_wait;
  uint  retry;
1760
  char port_buf[NI_MAXSERV];
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1761
  DBUG_ENTER("network_init");
1762
  LINT_INIT(ret);
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1763

1764
  if (MYSQL_CALLBACK_ELSE(thread_scheduler, init, (), 0))
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    unireg_abort(1);			/* purecov: inspected */

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  set_ports();

1769
  if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap)
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  {
1771 1772 1773
    struct addrinfo *ai, *a;
    struct addrinfo hints;
    int error;
1774
    DBUG_PRINT("general",("IP Socket is %d",mysqld_port));
1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785

    bzero(&hints, sizeof (hints));
    hints.ai_flags= AI_PASSIVE;
    hints.ai_socktype= SOCK_STREAM;
    hints.ai_family= AF_UNSPEC;

    my_snprintf(port_buf, NI_MAXSERV, "%d", mysqld_port);
    error= getaddrinfo(my_bind_addr_str, port_buf, &hints, &ai);
    if (error != 0)
    {
      DBUG_PRINT("error",("Got error: %d from getaddrinfo()", error));
1786
      sql_perror(ER_DEFAULT(ER_IPSOCK_ERROR));  /* purecov: tested */
1787 1788 1789 1790 1791 1792 1793 1794 1795 1796
      unireg_abort(1);				/* purecov: tested */
    }

    for (a= ai; a != NULL; a= a->ai_next)
    {
      ip_sock= socket(a->ai_family, a->ai_socktype, a->ai_protocol);
      if (ip_sock != INVALID_SOCKET)
        break;
    }

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    if (ip_sock == INVALID_SOCKET)
    {
      DBUG_PRINT("error",("Got error: %d from socket()",socket_errno));
1800
      sql_perror(ER_DEFAULT(ER_IPSOCK_ERROR));  /* purecov: tested */
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      unireg_abort(1);				/* purecov: tested */
    }
1803 1804 1805 1806 1807 1808

#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.
    */
1809
    arg= 1;
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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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#ifdef IPV6_V6ONLY
     /*
       For interoperability with older clients, IPv6 socket should
       listen on both IPv6 and IPv4 wildcard addresses.
       Turn off IPV6_V6ONLY option.

       NOTE: this will work starting from Windows Vista only.
       On Windows XP dual stack is not available, so it will not
       listen on the corresponding IPv4-address.
     */
    if (a->ai_family == AF_INET6)
    {
      arg= 0;
      (void) setsockopt(ip_sock, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&arg,
                sizeof(arg));
    }
#endif
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839
    /*
      Sometimes the port is not released fast enough when stopping and
      restarting the server. This happens quite often with the test suite
      on busy Linux systems. Retry to bind the address at these intervals:
      Sleep intervals: 1, 2, 4,  6,  9, 13, 17, 22, ...
      Retry at second: 1, 3, 7, 13, 22, 35, 52, 74, ...
      Limit the sequence by mysqld_port_timeout (set --port-open-timeout=#).
    */
    for (waited= 0, retry= 1; ; retry++, waited+= this_wait)
    {
1840
      if (((ret= bind(ip_sock, a->ai_addr, a->ai_addrlen)) >= 0 ) ||
1841
          (socket_errno != SOCKET_EADDRINUSE) ||
1842 1843 1844 1845 1846 1847
          (waited >= mysqld_port_timeout))
        break;
      sql_print_information("Retrying bind on TCP/IP port %u", mysqld_port);
      this_wait= retry * retry / 3 + 1;
      sleep(this_wait);
    }
1848
    freeaddrinfo(ai);
1849
    if (ret < 0)
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    {
      DBUG_PRINT("error",("Got error: %d from bind",socket_errno));
1852
      sql_perror("Can't start server: Bind on TCP/IP port");
1853
      sql_print_error("Do you already have another mysqld server running on port: %d ?",mysqld_port);
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      unireg_abort(1);
    }
1856
    if (listen(ip_sock,(int) back_log) < 0)
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    {
1858
      sql_perror("Can't start server: listen() on TCP/IP port");
1859
      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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1863
  }
1864

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1865
#ifdef _WIN32
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1866
  /* create named pipe */
1867
  if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap &&
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      opt_enable_named_pipe)
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1869
  {
1870
    strxnmov(pipe_name, sizeof(pipe_name)-1, "\\\\.\\pipe\\",
1871
	     mysqld_unix_port, NullS);
1872 1873
    bzero((char*) &saPipeSecurity, sizeof(saPipeSecurity));
    bzero((char*) &sdPipeDescriptor, sizeof(sdPipeDescriptor));
1874
    if (!InitializeSecurityDescriptor(&sdPipeDescriptor,
1875
				      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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Merge  
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1885
    saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES);
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    saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor;
    saPipeSecurity.bInheritHandle = FALSE;
1888
    if ((hPipe= CreateNamedPipe(pipe_name,
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				PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED,
1890 1891 1892 1893 1894 1895 1896 1897
				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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1898 1899 1900 1901 1902 1903 1904
      {
	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 );
1905
	sql_perror((char *)lpMsgBuf);
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1906
	LocalFree(lpMsgBuf);
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	unireg_abort(1);
      }
  }
#endif

1912
#if defined(HAVE_SYS_UN_H)
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  /*
  ** Create the UNIX socket
  */
1916
  if (mysqld_unix_port[0] && !opt_bootstrap)
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1917
  {
1918
    DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port));
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1919

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    if (strlen(mysqld_unix_port) > (sizeof(UNIXaddr.sun_path) - 1))
    {
1922
      sql_print_error("The socket file path is too long (> %u): %s",
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1923
                      (uint) sizeof(UNIXaddr.sun_path) - 1, mysqld_unix_port);
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      unireg_abort(1);
    }
1926
    if ((unix_sock= socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
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1927 1928 1929 1930 1931 1932
    {
      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;
1933 1934
    strmov(UNIXaddr.sun_path, mysqld_unix_port);
    (void) unlink(mysqld_unix_port);
1935
    arg= 1;
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    (void) setsockopt(unix_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,
		      sizeof(arg));
    umask(0);
1939
    if (bind(unix_sock, reinterpret_cast<struct sockaddr *>(&UNIXaddr),
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	     sizeof(UNIXaddr)) < 0)
    {
      sql_perror("Can't start server : Bind on unix socket"); /* purecov: tested */
1943
      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)
1948
    (void) chmod(mysqld_unix_port,S_IFSOCK);	/* Fix solaris 2.6 bug */
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#endif
1950
    if (listen(unix_sock,(int) back_log) < 0)
1951
      sql_print_warning("listen() on Unix socket failed with error %d",
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1952
		      socket_errno);
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1953 1954 1955 1956 1957 1958
  }
#endif
  DBUG_PRINT("info",("server started"));
  DBUG_VOID_RETURN;
}

1959
#endif /*!EMBEDDED_LIBRARY*/
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1960

1961

1962
#ifndef EMBEDDED_LIBRARY
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/**
  Close a connection.
1965

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  @param thd		Thread handle
  @param errcode	Error code to print to console
  @param lock	        1 if we have have to lock LOCK_thread_count
1969

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  @note
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    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)",
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		      errcode ? ER_DEFAULT(errcode) : ""));
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  if (lock)
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    mysql_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,
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                     ER_DEFAULT(errcode), NULL); /* purecov: inspected */
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    vio_close(vio);			/* vio is freed in delete thd */
  }
  if (lock)
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    mysql_mutex_unlock(&LOCK_thread_count);
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  MYSQL_CONNECTION_DONE((int) errcode, thd->thread_id);
  if (MYSQL_CONNECTION_DONE_ENABLED())
  {
    sleep(0); /* Workaround to avoid tailcall optimisation */
  }
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  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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    MYSQL_CALLBACK(thread_scheduler, end_thread, (thd,0)); /* purecov: inspected */
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  }
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  DBUG_VOID_RETURN;				/* purecov: deadcode */
}


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

  SYNOPSIS
    unlink_thd()
    thd		 Thread handler

  NOTES
    LOCK_thread_count is locked and left locked
*/

void unlink_thd(THD *thd)
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{
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  DBUG_ENTER("unlink_thd");
  DBUG_PRINT("enter", ("thd: 0x%lx", (long) thd));
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  thd->cleanup();
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  mysql_mutex_lock(&LOCK_connection_count);
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  --connection_count;
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  mysql_mutex_unlock(&LOCK_connection_count);
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  mysql_mutex_lock(&LOCK_thread_count);
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  thread_count--;
  delete thd;
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  DBUG_VOID_RETURN;
}

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/*
  Store thread in cache for reuse by new connections

  SYNOPSIS
    cache_thread()

  NOTES
    LOCK_thread_count has to be locked

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


static bool cache_thread()
{
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  mysql_mutex_assert_owner(&LOCK_thread_count);
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  if (cached_thread_count < thread_cache_size &&
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      ! abort_loop && !kill_cached_threads)
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  {
    /* Don't kill the thread, just put it in cache for reuse */
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    DBUG_PRINT("info", ("Adding thread to cache"));
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    cached_thread_count++;
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#ifdef HAVE_PSI_INTERFACE
    /*
      Delete the instrumentation for the job that just completed,
      before parking this pthread in the cache (blocked on COND_thread_cache).
    */
    if (likely(PSI_server != NULL))
      PSI_server->delete_current_thread();
#endif

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    while (!abort_loop && ! wake_thread && ! kill_cached_threads)
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      mysql_cond_wait(&COND_thread_cache, &LOCK_thread_count);
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    cached_thread_count--;
    if (kill_cached_threads)
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      mysql_cond_signal(&COND_flush_thread_cache);
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    if (wake_thread)
    {
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      THD *thd;
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      wake_thread--;
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      thd= thread_cache.get();
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      thd->thread_stack= (char*) &thd;          // For store_globals
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      (void) thd->store_globals();
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#ifdef HAVE_PSI_INTERFACE
      /*
        Create new instrumentation for the new THD job,
        and attach it to this running pthread.
      */
      if (likely(PSI_server != NULL))
      {
        PSI_thread *psi= PSI_server->new_thread(key_thread_one_connection,
                                                thd, thd->thread_id);
        if (likely(psi != NULL))
          PSI_server->set_thread(psi);
      }
#endif

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      /*
        THD::mysys_var::abort is associated with physical thread rather
        than with THD object. So we need to reset this flag before using
        this thread for handling of new THD object/connection.
      */
      thd->mysys_var->abort= 0;
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      thd->thr_create_utime= my_micro_time();
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      threads.append(thd);
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      return(1);
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    }
  }
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  return(0);
}


/*
  End thread for the current connection

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

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

  RETURN
    0    Signal to handle_one_connection to reuse connection
*/

bool one_thread_per_connection_end(THD *thd, bool put_in_cache)
{
  DBUG_ENTER("one_thread_per_connection_end");
  unlink_thd(thd);
  if (put_in_cache)
    put_in_cache= cache_thread();
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  mysql_mutex_unlock(&LOCK_thread_count);
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  if (put_in_cache)
    DBUG_RETURN(0);                             // Thread is reused
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  /* It's safe to broadcast outside a lock (COND... is not deleted here) */
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  DBUG_PRINT("signal", ("Broadcasting COND_thread_count"));
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  DBUG_LEAVE;                                   // Must match DBUG_ENTER()
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  my_thread_end();
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  mysql_cond_broadcast(&COND_thread_count);
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  pthread_exit(0);
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  return 0;                                     // Avoid compiler warnings
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}


void flush_thread_cache()
{
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  mysql_mutex_lock(&LOCK_thread_count);
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  kill_cached_threads++;
  while (cached_thread_count)
  {
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    mysql_cond_broadcast(&COND_thread_cache);
    mysql_cond_wait(&COND_flush_thread_cache, &LOCK_thread_count);
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  }
  kill_cached_threads--;
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  mysql_mutex_unlock(&LOCK_thread_count);
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}


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

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

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

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




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

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


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

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static void start_signal_handler(void)
2342
{
2343
#ifndef EMBEDDED_LIBRARY
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  // Save vm id of this process
  if (!opt_bootstrap)
    create_pid_file();
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#endif /* EMBEDDED_LIBRARY */
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}
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static void check_data_home(const char *path)
{}
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#endif /* __WIN__ */
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#ifdef HAVE_LINUXTHREADS
#define UNSAFE_DEFAULT_LINUX_THREADS 200
2358
#endif
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#if BACKTRACE_DEMANGLE
#include <cxxabi.h>
extern "C" char *my_demangle(const char *mangled_name, int *status)
{
  return abi::__cxa_demangle(mangled_name, NULL, NULL, status);
}
#endif


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extern "C" sig_handler handle_segfault(int sig)
2371
{
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  time_t curr_time;
  struct tm tm;

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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
  */
2381
  if (segfaulted)
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  {
2383
    fprintf(stderr, "Fatal " SIGNAL_FMT " while backtracing\n", sig);
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    exit(1);
  }
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  segfaulted = 1;
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  curr_time= my_time(0);
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  localtime_r(&curr_time, &tm);

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  fprintf(stderr,"\
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%02d%02d%02d %2d:%02d:%02d - mysqld got " SIGNAL_FMT " ;\n\
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This could be because you hit a bug. It is also possible that this binary\n\
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or one of the libraries it was linked against is corrupt, improperly built,\n\
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or misconfigured. This error can also be caused by malfunctioning hardware.\n",
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          tm.tm_year % 100, tm.tm_mon+1, tm.tm_mday,
          tm.tm_hour, tm.tm_min, tm.tm_sec,
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	  sig);
  fprintf(stderr, "\
We will try our best to scrape up some info that will hopefully help diagnose\n\
the problem, but since we have already crashed, something is definitely wrong\n\
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and this may fail.\n\n");
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  fprintf(stderr, "key_buffer_size=%lu\n",
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          (ulong) dflt_key_cache->key_cache_mem_size);
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  fprintf(stderr, "read_buffer_size=%ld\n", (long) global_system_variables.read_buff_size);
  fprintf(stderr, "max_used_connections=%lu\n", max_used_connections);
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  fprintf(stderr, "max_threads=%u\n", thread_scheduler->max_threads);
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  fprintf(stderr, "thread_count=%u\n", thread_count);
  fprintf(stderr, "connection_count=%u\n", connection_count);
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  fprintf(stderr, "It is possible that mysqld could use up to \n\
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = %lu K\n\
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bytes of memory\n", ((ulong) dflt_key_cache->key_cache_mem_size +
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		     (global_system_variables.read_buff_size +
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		      global_system_variables.sortbuff_size) *
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		     thread_scheduler->max_threads +
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                     max_connections * sizeof(THD)) / 1024);
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  fprintf(stderr, "Hope that's ok; if not, decrease some variables in the equation.\n\n");
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#if defined(HAVE_LINUXTHREADS)
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  if (sizeof(char*) == 4 && thread_count > UNSAFE_DEFAULT_LINUX_THREADS)
  {
    fprintf(stderr, "\
You seem to be running 32-bit Linux and have %d concurrent connections.\n\
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If you have not changed STACK_SIZE in LinuxThreads and built the binary \n\
yourself, LinuxThreads is quite likely to steal a part of the global heap for\n\
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the thread stack. Please read http://dev.mysql.com/doc/mysql/en/linux.html\n\n",
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	    thread_count);
  }
#endif /* HAVE_LINUXTHREADS */
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#ifdef HAVE_STACKTRACE
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  THD *thd=current_thd;

2435
  if (!(test_flags & TEST_NO_STACKTRACE))
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  {
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    fprintf(stderr, "thd: 0x%lx\n",(long) thd);
    fprintf(stderr, "Attempting backtrace. You can use the following "
                    "information to find out\nwhere mysqld died. If "
                    "you see no messages after this, something went\n"
                    "terribly wrong...\n");
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    my_print_stacktrace(thd ? (uchar*) thd->thread_stack : NULL,
                        my_thread_stack_size);
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  }
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  if (thd)
  {
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    const char *kreason= "UNKNOWN";
    switch (thd->killed) {
    case THD::NOT_KILLED:
      kreason= "NOT_KILLED";
      break;
    case THD::KILL_BAD_DATA:
      kreason= "KILL_BAD_DATA";
      break;
    case THD::KILL_CONNECTION:
      kreason= "KILL_CONNECTION";
      break;
    case THD::KILL_QUERY:
      kreason= "KILL_QUERY";
      break;
    case THD::KILLED_NO_VALUE:
      kreason= "KILLED_NO_VALUE";
      break;
    }
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    fprintf(stderr, "Trying to get some variables.\n\
Some pointers may be invalid and cause the dump to abort...\n");
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    my_safe_print_str("thd->query", thd->query(), 1024);
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    fprintf(stderr, "thd->thread_id=%lu\n", (ulong) thd->thread_id);
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    fprintf(stderr, "thd->killed=%s\n", kreason);
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  }
  fprintf(stderr, "\
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The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains\n\
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information that should help you find out what is causing the crash.\n");
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  fflush(stderr);
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#endif /* HAVE_STACKTRACE */

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

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

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

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

2524
#if !defined(__WIN__)
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#ifndef SA_RESETHAND
#define SA_RESETHAND 0
#endif
#ifndef SA_NODEFER
#define SA_NODEFER 0
#endif
2531

2532 2533
#ifndef EMBEDDED_LIBRARY

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

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

2548
#ifdef HAVE_STACKTRACE
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    my_init_stacktrace();
2550
#endif
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#if defined(__amiga__)
    sa.sa_handler=(void(*)())handle_segfault;
#else
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    sa.sa_handler=handle_segfault;
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#endif
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    sigaction(SIGSEGV, &sa, NULL);
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    sigaction(SIGABRT, &sa, NULL);
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#ifdef SIGBUS
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    sigaction(SIGBUS, &sa, NULL);
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#endif
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    sigaction(SIGILL, &sa, NULL);
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    sigaction(SIGFPE, &sa, NULL);
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  }
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#ifdef HAVE_GETRLIMIT
  if (test_flags & TEST_CORE_ON_SIGNAL)
  {
    /* Change limits so that we will get a core file */
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    STRUCT_RLIMIT rl;
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    rl.rlim_cur = rl.rlim_max = RLIM_INFINITY;
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    if (setrlimit(RLIMIT_CORE, &rl) && global_system_variables.log_warnings)
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      sql_print_warning("setrlimit could not change the size of core files to 'infinity';  We may not be able to generate a core file on signals");
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  }
#endif
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  (void) sigemptyset(&set);
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  my_sigset(SIGPIPE,SIG_IGN);
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  sigaddset(&set,SIGPIPE);
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#ifndef IGNORE_SIGHUP_SIGQUIT
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  sigaddset(&set,SIGQUIT);
  sigaddset(&set,SIGHUP);
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#endif
  sigaddset(&set,SIGTERM);
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  /* Fix signals if blocked by parents (can happen on Mac OS X) */
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  sigemptyset(&sa.sa_mask);
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  sa.sa_flags = 0;
  sa.sa_handler = print_signal_warning;
  sigaction(SIGTERM, &sa, (struct sigaction*) 0);
  sa.sa_flags = 0;
  sa.sa_handler = print_signal_warning;
  sigaction(SIGHUP, &sa, (struct sigaction*) 0);
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#ifdef SIGTSTP
  sigaddset(&set,SIGTSTP);
#endif
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  if (thd_lib_detected != THD_LIB_LT)
    sigaddset(&set,THR_SERVER_ALARM);
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  if (test_flags & TEST_SIGINT)
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  {
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    my_sigset(thr_kill_signal, end_thread_signal);
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    // May be SIGINT
    sigdelset(&set, thr_kill_signal);
  }
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  else
    sigaddset(&set,SIGINT);
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  sigprocmask(SIG_SETMASK,&set,NULL);
  pthread_sigmask(SIG_SETMASK,&set,NULL);
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  DBUG_VOID_RETURN;
}


static void start_signal_handler(void)
{
  int error;
  pthread_attr_t thr_attr;
  DBUG_ENTER("start_signal_handler");
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  (void) pthread_attr_init(&thr_attr);
#if !defined(HAVE_DEC_3_2_THREADS)
  pthread_attr_setscope(&thr_attr,PTHREAD_SCOPE_SYSTEM);
  (void) pthread_attr_setdetachstate(&thr_attr,PTHREAD_CREATE_DETACHED);
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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,my_thread_stack_size*2);
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#else
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  pthread_attr_setstacksize(&thr_attr,my_thread_stack_size);
2629
#endif
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#endif

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  mysql_mutex_lock(&LOCK_thread_count);
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  if ((error= mysql_thread_create(key_thread_signal_hand,
                                  &signal_thread, &thr_attr, signal_hand, 0)))
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  {
    sql_print_error("Can't create interrupt-thread (error %d, errno: %d)",
		    error,errno);
    exit(1);
  }
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  mysql_cond_wait(&COND_thread_count, &LOCK_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
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  (void) pthread_attr_destroy(&thr_attr);
  DBUG_VOID_RETURN;
}


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/** This threads handles all signals and alarms. */
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/* ARGSUSED */
2650
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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2662
  */
2663
  init_thr_alarm(thread_scheduler->max_threads +
2664
		 global_system_variables.max_insert_delayed_threads + 10);
2665
  if (thd_lib_detected != THD_LIB_LT && (test_flags & TEST_SIGINT))
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  {
    (void) sigemptyset(&set);			// Setup up SIGINT for debug
    (void) sigaddset(&set,SIGINT);		// For debugging
    (void) pthread_sigmask(SIG_UNBLOCK,&set,NULL);
  }
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  (void) sigemptyset(&set);			// Setup up SIGINT for debug
#ifdef USE_ONE_SIGNAL_HAND
  (void) sigaddset(&set,THR_SERVER_ALARM);	// For alarms
#endif
2675
#ifndef IGNORE_SIGHUP_SIGQUIT
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  (void) sigaddset(&set,SIGQUIT);
  (void) sigaddset(&set,SIGHUP);
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#endif
  (void) sigaddset(&set,SIGTERM);
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  (void) sigaddset(&set,SIGTSTP);

  /* Save pid to this process (or thread on Linux) */
2683
  if (!opt_bootstrap)
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    create_pid_file();

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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
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    should not be any other mysql_cond_signal() calls.
2692
  */
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  mysql_mutex_lock(&LOCK_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
  mysql_cond_broadcast(&COND_thread_count);
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2697
  (void) pthread_sigmask(SIG_BLOCK,&set,NULL);
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  for (;;)
  {
    int error;					// Used when debugging
    if (shutdown_in_progress && !abort_loop)
    {
2703
      sig= SIGTERM;
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      error=0;
    }
    else
      while ((error=my_sigwait(&set,&sig)) == EINTR) ;
    if (cleanup_done)
2709
    {
2710
      DBUG_PRINT("quit",("signal_handler: calling my_thread_end()"));
2711
      my_thread_end();
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      signal_thread_in_use= 0;
2713
      DBUG_LEAVE;                               // Must match DBUG_ENTER()
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      pthread_exit(0);				// Safety
2715
      return 0;                                 // Avoid compiler warnings
2716
    }
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    switch (sig) {
    case SIGTERM:
    case SIGQUIT:
    case SIGKILL:
#ifdef EXTRA_DEBUG
2722
      sql_print_information("Got signal %d to shutdown mysqld",sig);
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#endif
2724
      /* switch to the old log message processing */
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      logger.set_handlers(LOG_FILE, opt_slow_log ? LOG_FILE:LOG_NONE,
                          opt_log ? LOG_FILE:LOG_NONE);
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      DBUG_PRINT("info",("Got signal: %d  abort_loop: %d",sig,abort_loop));
      if (!abort_loop)
      {
	abort_loop=1;				// mark abort for threads
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#ifdef HAVE_PSI_INTERFACE
        /* Delete the instrumentation for the signal thread */
        if (likely(PSI_server != NULL))
          PSI_server->delete_current_thread();
#endif
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#ifdef USE_ONE_SIGNAL_HAND
	pthread_t tmp;
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        if (mysql_thread_create(0, /* Not instrumented */
                                &tmp, &connection_attrib, kill_server_thread,
                                (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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      }
2758
      /* reenable logs after the options were reloaded */
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      if (log_output_options & LOG_NONE)
      {
        logger.set_handlers(LOG_FILE,
                            opt_slow_log ? LOG_TABLE : LOG_NONE,
                            opt_log ? LOG_TABLE : LOG_NONE);
      }
      else
      {
        logger.set_handlers(LOG_FILE,
                            opt_slow_log ? log_output_options : LOG_NONE,
                            opt_log ? log_output_options : LOG_NONE);
      }
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      break;
#ifdef USE_ONE_SIGNAL_HAND
    case THR_SERVER_ALARM:
      process_alarm(sig);			// Trigger alarms.
      break;
#endif
    default:
#ifdef EXTRA_DEBUG
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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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static void check_data_home(const char *path)
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{}
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2790
#endif /*!EMBEDDED_LIBRARY*/
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#endif	/* __WIN__*/


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/**
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  All global error messages are sent here where the first one is stored
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  for the client.
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*/
/* ARGSUSED */
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extern "C" void my_message_sql(uint error, const char *str, myf MyFlags);
2800

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void my_message_sql(uint error, const char *str, myf MyFlags)
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{
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  THD *thd= current_thd;
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  DBUG_ENTER("my_message_sql");
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  DBUG_PRINT("error", ("error: %u  message: '%s'", error, str));
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  DBUG_ASSERT(str != NULL);
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2808
  /*
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    An error should have a valid error number (!= 0), so it can be caught
    in stored procedures by SQL exception handlers.
    Calling my_error() with error == 0 is a bug.
    Remaining known places to fix:
    - storage/myisam/mi_create.c, my_printf_error()
    TODO:
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    DBUG_ASSERT(error != 0);
  */
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  if (error == 0)
  {
    /* At least, prevent new abuse ... */
    DBUG_ASSERT(strncmp(str, "MyISAM table", 12) == 0);
    error= ER_UNKNOWN_ERROR;
  }

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  mysql_audit_general(thd, MYSQL_AUDIT_GENERAL_ERROR, error, str);

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  if (thd)
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  {
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    if (MyFlags & ME_FATALERROR)
      thd->is_fatal_error= 1;
    (void) thd->raise_condition(error,
                                NULL,
                                MYSQL_ERROR::WARN_LEVEL_ERROR,
                                str);
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  }
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  /* When simulating OOM, skip writing to error log to avoid mtr errors */
2838
  DBUG_EXECUTE_IF("simulate_out_of_memory", DBUG_VOID_RETURN;);
2839

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  if (!thd || MyFlags & ME_NOREFRESH)
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    sql_print_error("%s: %s",my_progname,str); /* purecov: inspected */
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2842
  DBUG_VOID_RETURN;
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}

2845

2846
#ifndef EMBEDDED_LIBRARY
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extern "C" void *my_str_malloc_mysqld(size_t size);
extern "C" void my_str_free_mysqld(void *ptr);

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


2856
void my_str_free_mysqld(void *ptr)
2857
{
2858
  my_free(ptr);
2859
}
2860
#endif /* EMBEDDED_LIBRARY */
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#ifdef __WIN__

2865
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)
2874
#endif /* EMBEDDED_LIBRARY */
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     kill_server(MYSQL_KILL_SIGNAL);
  return 0;
}
#endif

2880
const char *load_default_groups[]= {
2881
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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"mysql_cluster",
#endif
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"mysqld","server", MYSQL_BASE_VERSION, 0, 0};

2886
#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.
2894

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  @param format_type		What kind of format should be supported
  @param var_ptr		Pointer to variable that should be updated
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2897

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  @retval
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    0 ok
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  @retval
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    1 error
*/

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static bool init_global_datetime_format(timestamp_type format_type,
2905
                                        DATE_TIME_FORMAT *format)
2906
{
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  /*
    Get command line option
    format->format.str is already set by my_getopt
  */
  format->format.length= strlen(format->format.str);
2912

2913
  if (parse_date_time_format(format_type, format))
2914
  {
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    fprintf(stderr, "Wrong date/time format specifier: %s\n",
            format->format.str);
    return true;
2918
  }
2919
  return false;
2920 2921
}

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

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static int init_common_variables()
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{
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  char buff[FN_REFLEN];
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  umask(((~my_umask) & 0666));
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  my_decimal_set_zero(&decimal_zero); // set decimal_zero constant;
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  tzset();			// Set tzname

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  max_system_variables.pseudo_thread_id= (ulong)~0;
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  server_start_time= flush_status_time= my_time(0);
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  /* TODO: remove this when my_time_t is 64 bit compatible */
  if (server_start_time >= (time_t) MY_TIME_T_MAX)
  {
    sql_print_error("This MySQL server doesn't support dates later then 2038");
    return 1;
  }

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  rpl_filter= new Rpl_filter;
  binlog_filter= new Rpl_filter;
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  if (!rpl_filter || !binlog_filter)
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  {
    sql_perror("Could not allocate replication and binlog filters");
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    return 1;
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  }

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

 }
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#endif
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  /*
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    We set SYSTEM time zone as reasonable default and
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    also for failure of my_tz_init() and bootstrap mode.
    If user explicitly set time zone with --default-time-zone
    option we will change this value in my_tz_init().
  */
  global_system_variables.time_zone= my_tz_SYSTEM;
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  /*
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    Init mutexes for the global MYSQL_BIN_LOG objects.
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    As safe_mutex depends on what MY_INIT() does, we can't init the mutexes of
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    global MYSQL_BIN_LOGs in their constructors, because then they would be
    inited before MY_INIT(). So we do it here.
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  */
  mysql_bin_log.init_pthread_objects();
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  if (gethostname(glob_hostname,sizeof(glob_hostname)) < 0)
  {
    strmake(glob_hostname, STRING_WITH_LEN("localhost"));
    sql_print_warning("gethostname failed, using '%s' as hostname",
                      glob_hostname);
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    strmake(default_logfile_name, STRING_WITH_LEN("mysql"));
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  }
  else
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    strmake(default_logfile_name, glob_hostname, 
	    sizeof(default_logfile_name)-5);

  strmake(pidfile_name, default_logfile_name, sizeof(pidfile_name)-5);
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  strmov(fn_ext(pidfile_name),".pid");		// Add proper extension
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  /*
    The default-storage-engine entry in my_long_options should have a
    non-null default value. It was earlier intialized as
    (longlong)"MyISAM" in my_long_options but this triggered a
    compiler error in the Sun Studio 12 compiler. As a work-around we
    set the def_value member to 0 in my_long_options and initialize it
    to the correct value here.
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    From MySQL 5.5 onwards, the default storage engine is InnoDB
    (except in the embedded server, where the default continues to
    be MyISAM)
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  */
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#ifdef EMBEDDED_LIBRARY
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  default_storage_engine= const_cast<char *>("MyISAM");
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#else
  default_storage_engine= const_cast<char *>("InnoDB");
#endif
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  /*
    Add server status variables to the dynamic list of
    status variables that is shown by SHOW STATUS.
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    Later, in plugin_init, and mysql_install_plugin
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    new entries could be added to that list.
  */
  if (add_status_vars(status_vars))
    return 1; // an error was already reported

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

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

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

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

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  if (get_options(&remaining_argc, &remaining_argv))
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    return 1;
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  set_server_version();

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#ifndef EMBEDDED_LIBRARY
  if (opt_help && !opt_verbose)
    unireg_abort(0);
#endif /*!EMBEDDED_LIBRARY*/

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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()))
  {
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      DBUG_PRINT("info", ("Large page set, large_page_size = %d",
                 opt_large_page_size));
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      my_use_large_pages= 1;
      my_large_page_size= opt_large_page_size;
  }
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  else
  {
    opt_large_pages= 0;
    /* 
       Either not configured to use large pages or Linux haven't
       been compiled with large page support
    */
  }
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#endif /* HAVE_LARGE_PAGES */
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#ifdef HAVE_SOLARIS_LARGE_PAGES
#define LARGE_PAGESIZE (4*1024*1024)  /* 4MB */
#define SUPER_LARGE_PAGESIZE (256*1024*1024)  /* 256MB */
  if (opt_large_pages)
  {
  /*
    tell the kernel that we want to use 4/256MB page for heap storage
    and also for the stack. We use 4 MByte as default and if the
    super-large-page is set we increase it to 256 MByte. 256 MByte
    is for server installations with GBytes of RAM memory where
    the MySQL Server will have page caches and other memory regions
    measured in a number of GBytes.
    We use as big pages as possible which isn't bigger than the above
    desired page sizes.
  */
   int nelem;
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   size_t max_desired_page_size;
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   if (opt_super_large_pages)
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     max_desired_page_size= SUPER_LARGE_PAGESIZE;
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   else
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     max_desired_page_size= LARGE_PAGESIZE;
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   nelem = getpagesizes(NULL, 0);
   if (nelem > 0)
   {
     size_t *pagesize = (size_t *) malloc(sizeof(size_t) * nelem);
     if (pagesize != NULL && getpagesizes(pagesize, nelem) > 0)
     {
       size_t i, max_page_size= 0;
       for (i= 0; i < nelem; i++)
       {
         if (pagesize[i] > max_page_size &&
             pagesize[i] <= max_desired_page_size)
            max_page_size= pagesize[i];
       }
       free(pagesize);
       if (max_page_size > 0)
       {
         struct memcntl_mha mpss;

         mpss.mha_cmd= MHA_MAPSIZE_BSSBRK;
         mpss.mha_pagesize= max_page_size;
         mpss.mha_flags= 0;
         memcntl(NULL, 0, MC_HAT_ADVISE, (caddr_t)&mpss, 0, 0);
         mpss.mha_cmd= MHA_MAPSIZE_STACK;
         memcntl(NULL, 0, MC_HAT_ADVISE, (caddr_t)&mpss, 0, 0);
       }
     }
   }
  }
#endif /* HAVE_SOLARIS_LARGE_PAGES */
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3284

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3285 3286
  /* connections and databases needs lots of files */
  {
3287
    uint files, wanted_files, max_open_files;
3288

3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303
    /* MyISAM requires two file handles per table. */
    wanted_files= 10+max_connections+table_cache_size*2;
    /*
      We are trying to allocate no less than max_connections*5 file
      handles (i.e. we are trying to set the limit so that they will
      be available).  In addition, we allocate no less than how much
      was already allocated.  However below we report a warning and
      recompute values only if we got less file handles than were
      explicitly requested.  No warning and re-computation occur if we
      can't get max_connections*5 but still got no less than was
      requested (value of wanted_files).
    */
    max_open_files= max(max(wanted_files, max_connections*5),
                        open_files_limit);
    files= my_set_max_open_files(max_open_files);
3304 3305

    if (files < wanted_files)
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    {
3307 3308
      if (!open_files_limit)
      {
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        /*
          If we have requested too much file handles than we bring
          max_connections in supported bounds.
        */
        max_connections= (ulong) min(files-10-TABLE_OPEN_CACHE_MIN*2,
                                     max_connections);
        /*
          Decrease table_cache_size according to max_connections, but
          not below TABLE_OPEN_CACHE_MIN.  Outer min() ensures that we
          never increase table_cache_size automatically (that could
          happen if max_connections is decreased above).
        */
        table_cache_size= (ulong) min(max((files-10-max_connections)/2,
                                          TABLE_OPEN_CACHE_MIN),
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3323
                                      table_cache_size);
3324 3325 3326
	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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3327
	if (global_system_variables.log_warnings)
3328
	  sql_print_warning("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
3329 3330
			files, max_connections, table_cache_size);
      }
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      else if (global_system_variables.log_warnings)
3332
	sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, wanted_files);
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3333
    }
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    open_files_limit= files;
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3335 3336
  }
  unireg_init(opt_specialflag); /* Set up extern variabels */
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  if (!(my_default_lc_messages=
        my_locale_by_name(lc_messages)))
  {
    sql_print_error("Unknown locale: '%s'", lc_messages);
    return 1;
  }
  global_system_variables.lc_messages= my_default_lc_messages;
3344 3345
  if (init_errmessage())	/* Read error messages from file */
    return 1;
3346
  init_client_errs();
3347
  mysql_client_plugin_init();
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3348
  lex_init();
3349 3350
  if (item_create_init())
    return 1;
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3351
  item_init();
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3352
  my_regex_init(&my_charset_latin1);
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  /*
    Process a comma-separated character set list and choose
    the first available character set. This is mostly for
    test purposes, to be able to start "mysqld" even if
    the requested character set is not available (see bug#18743).
  */
  for (;;)
  {
    char *next_character_set_name= strchr(default_character_set_name, ',');
    if (next_character_set_name)
      *next_character_set_name++= '\0';
    if (!(default_charset_info=
          get_charset_by_csname(default_character_set_name,
                                MY_CS_PRIMARY, MYF(MY_WME))))
    {
      if (next_character_set_name)
      {
        default_character_set_name= next_character_set_name;
        default_collation_name= 0;          // Ignore collation
      }
      else
        return 1;                           // Eof of the list
    }
    else
      break;
  }

3380 3381
  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)
    {
3386
      sql_print_error(ER_DEFAULT(ER_UNKNOWN_COLLATION), default_collation_name);
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      return 1;
    }
    if (!my_charset_same(default_charset_info, default_collation))
3390
    {
3391
      sql_print_error(ER_DEFAULT(ER_COLLATION_CHARSET_MISMATCH),
3392 3393 3394 3395 3396 3397
		      default_collation_name,
		      default_charset_info->csname);
      return 1;
    }
    default_charset_info= default_collation;
  }
3398 3399 3400 3401
  /* 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;
3402
  global_system_variables.character_set_results= default_charset_info;
3403
  global_system_variables.character_set_client=  default_charset_info;
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  if (!(character_set_filesystem= 
        get_charset_by_csname(character_set_filesystem_name,
                              MY_CS_PRIMARY, MYF(MY_WME))))
    return 1;
  global_system_variables.character_set_filesystem= character_set_filesystem;

3410 3411 3412
  if (!(my_default_lc_time_names=
        my_locale_by_name(lc_time_names_name)))
  {
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3413
    sql_print_error("Unknown locale: '%s'", lc_time_names_name);
3414 3415 3416
    return 1;
  }
  global_system_variables.lc_time_names= my_default_lc_time_names;
3417

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  /* check log options and issue warnings if needed */
  if (opt_log && opt_logname && !(log_output_options & LOG_FILE) &&
      !(log_output_options & LOG_NONE))
    sql_print_warning("Although a path was specified for the "
                      "--log option, log tables are used. "
3423
                      "To enable logging to files use the --log-output option.");
3424 3425 3426 3427

  if (opt_slow_log && opt_slow_logname && !(log_output_options & LOG_FILE)
      && !(log_output_options & LOG_NONE))
    sql_print_warning("Although a path was specified for the "
Konstantin Osipov's avatar
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3428
                      "--log-slow-queries option, log tables are used. "
3429
                      "To enable logging to files use the --log-output=file option.");
3430

3431 3432 3433
#define FIX_LOG_VAR(VAR, ALT)                                   \
  if (!VAR || !*VAR)                                            \
  {                                                             \
3434
    my_free(VAR); /* it could be an allocated empty string "" */ \
3435 3436
    VAR= my_strdup(ALT, MYF(0));                                \
  }
3437

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  FIX_LOG_VAR(opt_logname,
              make_default_log_name(buff, ".log"));
  FIX_LOG_VAR(opt_slow_logname,
              make_default_log_name(buff, "-slow.log"));
3442

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#if defined(ENABLED_DEBUG_SYNC)
  /* Initialize the debug sync facility. See debug_sync.cc. */
  if (debug_sync_init())
    return 1; /* purecov: tested */
#endif /* defined(ENABLED_DEBUG_SYNC) */

3449
#if (ENABLE_TEMP_POOL)
3450
  if (use_temp_pool && bitmap_init(&temp_pool,0,1024,1))
3451
    return 1;
3452 3453 3454 3455
#else
  use_temp_pool= 0;
#endif

3456
  if (my_dboptions_cache_init())
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3457 3458
    return 1;

3459 3460 3461 3462 3463 3464
  /*
    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));
3465 3466
  lower_case_file_system= test_if_case_insensitive(mysql_real_data_home);
  if (!lower_case_table_names && lower_case_file_system == 1)
3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495
  {
    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;
  }
3496 3497 3498 3499 3500
  else
  {
    lower_case_file_system=
      (test_if_case_insensitive(mysql_real_data_home) == 1);
  }
3501 3502 3503 3504 3505 3506

  /* 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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3507 3508
  return 0;
}
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3509

3510 3511

static int init_thread_environment()
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3512
{
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3513
  mysql_mutex_init(key_LOCK_thread_count, &LOCK_thread_count, MY_MUTEX_INIT_FAST);
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Marc Alff committed
3514
  mysql_mutex_init(key_LOCK_status, &LOCK_status, MY_MUTEX_INIT_FAST);
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3515
  mysql_mutex_init(key_LOCK_delayed_insert,
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3516 3517 3518 3519 3520
                   &LOCK_delayed_insert, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_delayed_status,
                   &LOCK_delayed_status, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_delayed_create,
                   &LOCK_delayed_create, MY_MUTEX_INIT_SLOW);
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3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539
  mysql_mutex_init(key_LOCK_manager,
                   &LOCK_manager, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_crypt, &LOCK_crypt, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_user_conn, &LOCK_user_conn, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_active_mi, &LOCK_active_mi, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_global_system_variables,
                   &LOCK_global_system_variables, MY_MUTEX_INIT_FAST);
  mysql_rwlock_init(key_rwlock_LOCK_system_variables_hash,
                    &LOCK_system_variables_hash);
  mysql_mutex_init(key_LOCK_global_read_lock,
                   &LOCK_global_read_lock, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_prepared_stmt_count,
                   &LOCK_prepared_stmt_count, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_error_messages,
                   &LOCK_error_messages, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_uuid_generator,
                   &LOCK_uuid_generator, MY_MUTEX_INIT_FAST);
  mysql_mutex_init(key_LOCK_connection_count,
                   &LOCK_connection_count, MY_MUTEX_INIT_FAST);
3540
#ifdef HAVE_OPENSSL
Marc Alff's avatar
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3541 3542
  mysql_mutex_init(key_LOCK_des_key_file,
                   &LOCK_des_key_file, MY_MUTEX_INIT_FAST);
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3543 3544 3545 3546
#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)
3547
    mysql_rwlock_init(key_rwlock_openssl, &openssl_stdlocks[i].lock);
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3548 3549 3550 3551 3552 3553
  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
3554
#endif
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3555 3556 3557
  mysql_rwlock_init(key_rwlock_LOCK_sys_init_connect, &LOCK_sys_init_connect);
  mysql_rwlock_init(key_rwlock_LOCK_sys_init_slave, &LOCK_sys_init_slave);
  mysql_rwlock_init(key_rwlock_LOCK_grant, &LOCK_grant);
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3558
  mysql_cond_init(key_COND_thread_count, &COND_thread_count, NULL);
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3559
  mysql_cond_init(key_COND_global_read_lock, &COND_global_read_lock, NULL);
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3560 3561
  mysql_cond_init(key_COND_thread_cache, &COND_thread_cache, NULL);
  mysql_cond_init(key_COND_flush_thread_cache, &COND_flush_thread_cache, NULL);
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3562
  mysql_cond_init(key_COND_manager, &COND_manager, NULL);
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3563
#ifdef HAVE_REPLICATION
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3564 3565
  mysql_mutex_init(key_LOCK_rpl_status, &LOCK_rpl_status, MY_MUTEX_INIT_FAST);
  mysql_cond_init(key_COND_rpl_status, &COND_rpl_status, NULL);
3566
#endif
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  mysql_mutex_init(key_LOCK_server_started,
                   &LOCK_server_started, MY_MUTEX_INIT_FAST);
  mysql_cond_init(key_COND_server_started, &COND_server_started, NULL);
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3570
  sp_cache_init();
3571
#ifdef HAVE_EVENT_SCHEDULER
3572
  Events::init_mutexes();
3573
#endif
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3574 3575 3576 3577 3578
  /* 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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3579

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3580 3581 3582 3583 3584 3585 3586 3587 3588
  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;
}

3589

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3590
#if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL)
3591 3592 3593 3594 3595 3596 3597 3598 3599
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;
3600
  mysql_rwlock_init(key_rwlock_openssl, &lock->lock);
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  return lock;
}


static void openssl_dynlock_destroy(openssl_lock_t *lock, const char *file, 
				    int line)
{
3608
  mysql_rwlock_destroy(&lock->lock);
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  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";
3634
    err= mysql_rwlock_rdlock(&lock->lock);
3635 3636 3637
    break;
  case CRYPTO_LOCK|CRYPTO_WRITE:
    what = "write lock";
3638
    err= mysql_rwlock_wrlock(&lock->lock);
3639 3640 3641 3642
    break;
  case CRYPTO_UNLOCK|CRYPTO_READ:
  case CRYPTO_UNLOCK|CRYPTO_WRITE:
    what = "unlock";
3643
    err= mysql_rwlock_unlock(&lock->lock);
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    break;
  default:
    /* Unknown locking mode. */
    sql_print_error("Fatal: OpenSSL interface problem (mode=0x%x)", mode);
    abort();
  }
  if (err) 
  {
3652
    sql_print_error("Fatal: can't %s OpenSSL lock", what);
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    abort();
  }
}
#endif /* HAVE_OPENSSL */


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3659 3660
static void init_ssl()
{
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3661
#ifdef HAVE_OPENSSL
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3662
#ifndef EMBEDDED_LIBRARY
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  if (opt_use_ssl)
  {
3665 3666
    enum enum_ssl_init_error error= SSL_INITERR_NOERROR;

3667 3668 3669
    /* 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,
3670
					  opt_ssl_cipher, &error);
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3671
    DBUG_PRINT("info",("ssl_acceptor_fd: 0x%lx", (long) ssl_acceptor_fd));
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3672
    if (!ssl_acceptor_fd)
3673
    {
3674
      sql_print_warning("Failed to setup SSL");
3675
      sql_print_warning("SSL error: %s", sslGetErrString(error));
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3676
      opt_use_ssl = 0;
3677
      have_ssl= SHOW_OPTION_DISABLED;
3678 3679 3680 3681
    }
  }
  else
  {
3682
    have_ssl= SHOW_OPTION_DISABLED;
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3683
  }
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#else
  have_ssl= SHOW_OPTION_DISABLED;
#endif /* ! EMBEDDED_LIBRARY */
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3687 3688
  if (des_key_file)
    load_des_key_file(des_key_file);
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3689
#endif /* HAVE_OPENSSL */
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3690
}
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3691

3692

3693 3694 3695
static void end_ssl()
{
#ifdef HAVE_OPENSSL
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3696
#ifndef EMBEDDED_LIBRARY
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  if (ssl_acceptor_fd)
  {
    free_vio_ssl_acceptor_fd(ssl_acceptor_fd);
    ssl_acceptor_fd= 0;
  }
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3702
#endif /* ! EMBEDDED_LIBRARY */
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#endif /* HAVE_OPENSSL */
}


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3707 3708
static int init_server_components()
{
3709
  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
  */
3714 3715
  mdl_init();
  if (table_def_init() | hostname_cache_init())
3716
    unireg_abort(1);
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3717

3718
  query_cache_set_min_res_unit(query_cache_min_res_unit);
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3719
  query_cache_init();
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  query_cache_resize(query_cache_size);
3721
  randominit(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2);
3722
  setup_fpu();
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3723
  init_thr_lock();
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SCRUM  
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3724
#ifdef HAVE_REPLICATION
3725
  init_slave_list();
3726
#endif
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3727

3728 3729
  /* Setup logs */

3730 3731 3732 3733 3734 3735
  /*
    Enable old-fashioned error log, except when the user has requested
    help information. Since the implementation of plugin server
    variables the help output is now written much later.
  */
  if (opt_error_log && !opt_help)
3736 3737
  {
    if (!log_error_file_ptr[0])
3738
      fn_format(log_error_file, pidfile_name, mysql_data_home, ".err",
3739 3740 3741 3742
                MY_REPLACE_EXT); /* replace '.<domain>' by '.err', bug#4997 */
    else
      fn_format(log_error_file, log_error_file_ptr, mysql_data_home, ".err",
                MY_UNPACK_FILENAME | MY_SAFE_PATH);
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    /*
      _ptr may have been set to my_disabled_option or "" if no argument was
      passed, but we need to show the real name in SHOW VARIABLES:
    */
    log_error_file_ptr= log_error_file;
3748
    if (!log_error_file[0])
3749
      opt_error_log= 0;                         // Too long file name
3750 3751
    else
    {
3752
      my_bool res;
3753
#ifndef EMBEDDED_LIBRARY
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      res= reopen_fstreams(log_error_file, stdout, stderr);
#else
      res= reopen_fstreams(log_error_file, NULL, stderr);
3757
#endif
3758 3759 3760

      if (!res)
        setbuf(stderr, NULL);
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    }
  }

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  proc_info_hook= set_thd_proc_info;

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#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
  /*
    Parsing the performance schema command line option may have reported
    warnings/information messages.
    Now that the logger is finally available, and redirected
    to the proper file when the --log--error option is used,
    print the buffered messages to the log.
  */
  buffered_logs.print();
  buffered_logs.cleanup();
#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */

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

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  /*
    initialize delegates for extension observers, errors have already
    been reported in the function
  */
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  if (delegates_init())
    unireg_abort(1);

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  /* need to configure logging before initializing storage engines */
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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 "
3795
                    "--log-slave-updates work.");
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  }
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  if (!opt_bin_log && binlog_format_used)
    sql_print_warning("You need to use --log-bin to make "
                      "--binlog-format work.");
3800

3801
  /* Check that we have not let the format to unspecified at this point */
3802
  DBUG_ASSERT((uint)global_system_variables.binlog_format <=
3803
              array_elements(binlog_format_names)-1);
3804

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#ifdef HAVE_REPLICATION
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  if (opt_log_slave_updates && replicate_same_server_id)
  {
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    if (opt_bin_log)
    {
      sql_print_error("using --replicate-same-server-id in conjunction with \
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--log-slave-updates is impossible, it would lead to infinite loops in this \
server.");
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      unireg_abort(1);
    }
    else
      sql_print_warning("using --replicate-same-server-id in conjunction with \
--log-slave-updates would lead to infinite loops in this server. However this \
will be ignored as the --log-bin option is not defined.");
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  }
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#endif
3821

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  if (opt_bin_log)
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  {
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    /* Reports an error and aborts, if the --log-bin's path 
       is a directory.*/
    if (opt_bin_logname && 
        opt_bin_logname[strlen(opt_bin_logname) - 1] == FN_LIBCHAR)
    {
      sql_print_error("Path '%s' is a directory name, please specify \
a file name for --log-bin option", opt_bin_logname);
      unireg_abort(1);
    }

    /* Reports an error and aborts, if the --log-bin-index's path 
       is a directory.*/
    if (opt_binlog_index_name && 
        opt_binlog_index_name[strlen(opt_binlog_index_name) - 1] 
        == FN_LIBCHAR)
    {
      sql_print_error("Path '%s' is a directory name, please specify \
a file name for --log-bin-index option", opt_binlog_index_name);
      unireg_abort(1);
    }

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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)
3849 3850
    {
      /*
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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.
3856
      */
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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);
3862
    }
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    if (ln == buf)
3864
    {
3865
      my_free(opt_bin_logname);
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      opt_bin_logname=my_strdup(buf, MYF(0));
3867
    }
3868
    if (mysql_bin_log.open_index_file(opt_binlog_index_name, ln, TRUE))
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    {
      unireg_abort(1);
    }
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  }

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  /* call ha_init_key_cache() on all key caches to init them */
  process_key_caches(&ha_init_key_cache);

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

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3881
  if (plugin_init(&remaining_argc, remaining_argv,
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                  (opt_noacl ? PLUGIN_INIT_SKIP_PLUGIN_TABLE : 0) |
                  (opt_help ? PLUGIN_INIT_SKIP_INITIALIZATION : 0)))
  {
    sql_print_error("Failed to initialize plugins.");
    unireg_abort(1);
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  }
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  plugins_are_initialized= TRUE;  /* Don't separate from init function */
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3890 3891 3892 3893 3894 3895
  have_csv= plugin_status(STRING_WITH_LEN("csv"),
                          MYSQL_STORAGE_ENGINE_PLUGIN);
  have_ndbcluster= plugin_status(STRING_WITH_LEN("ndbcluster"),
                                 MYSQL_STORAGE_ENGINE_PLUGIN);
  have_partitioning= plugin_status(STRING_WITH_LEN("partition"),
                                   MYSQL_STORAGE_ENGINE_PLUGIN);
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  /* we do want to exit if there are any other unknown options */
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  if (remaining_argc > 1)
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  {
    int ho_error;
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    struct my_option no_opts[]=
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    {
      {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
    };
    /*
      We need to eat any 'loose' arguments first before we conclude
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      that there are unprocessed options.
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    */
    my_getopt_skip_unknown= 0;
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    if ((ho_error= handle_options(&remaining_argc, &remaining_argv, no_opts,
3912
                                  mysqld_get_one_option)))
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      unireg_abort(ho_error);
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    /* Add back the program name handle_options removes */
    remaining_argc++;
    remaining_argv--;
3917
    my_getopt_skip_unknown= TRUE;
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    if (remaining_argc > 1)
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    {
      fprintf(stderr, "%s: Too many arguments (first extra is '%s').\n"
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              "Use --verbose --help to get a list of available options\n",
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              my_progname, remaining_argv[1]);
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      unireg_abort(1);
    }
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  }

3928 3929 3930
  if (opt_help)
    unireg_abort(0);

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  /* if the errmsg.sys is not loaded, terminate to maintain behaviour */
3932 3933
  if (!DEFAULT_ERRMSGS[0][0])
    unireg_abort(1);  
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3934

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

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

  if (log_output_options & LOG_NONE)
  {
    /*
      Issue a warining if there were specified additional options to the
      log-output along with NONE. Probably this wasn't what user wanted.
    */
    if ((log_output_options & LOG_NONE) && (log_output_options & ~LOG_NONE))
      sql_print_warning("There were other values specified to "
                        "log-output besides NONE. Disabling slow "
                        "and general logs anyway.");
    logger.set_handlers(LOG_FILE, LOG_NONE, LOG_NONE);
  }
  else
  {
    /* fall back to the log files if tables are not present */
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    LEX_STRING csv_name={C_STRING_WITH_LEN("csv")};
    if (!plugin_is_ready(&csv_name, MYSQL_STORAGE_ENGINE_PLUGIN))
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    {
3966
      /* purecov: begin inspected */
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      sql_print_error("CSV engine is not present, falling back to the "
                      "log files");
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      log_output_options= (log_output_options & ~LOG_TABLE) | LOG_FILE;
3970
      /* purecov: end */
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    }

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

3981
  /*
3982
    Set the default storage engine
3983
  */
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  LEX_STRING name= { default_storage_engine, strlen(default_storage_engine) };
  plugin_ref plugin;
  handlerton *hton;
  if ((plugin= ha_resolve_by_name(0, &name)))
    hton= plugin_data(plugin, handlerton*);
  else
3990
  {
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    sql_print_error("Unknown/unsupported storage engine: %s",
                    default_storage_engine);
    unireg_abort(1);
  }
  if (!ha_storage_engine_is_enabled(hton))
  {
    if (!opt_bootstrap)
3998
    {
3999 4000
      sql_print_error("Default storage engine (%s) is not available",
                      default_storage_engine);
4001 4002
      unireg_abort(1);
    }
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    DBUG_ASSERT(global_system_variables.table_plugin);
  }
  else
  {
    /*
      Need to unlock as global_system_variables.table_plugin
      was acquired during plugin_init()
    */
    plugin_unlock(0, global_system_variables.table_plugin);
    global_system_variables.table_plugin= plugin;
4013 4014
  }

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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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4020
  if (tc_log->open(opt_bin_log ? opt_bin_logname : opt_tc_log_file))
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4021 4022 4023 4024 4025
  {
    sql_print_error("Can't init tc log");
    unireg_abort(1);
  }

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4026 4027 4028 4029 4030
  if (ha_recover(0))
  {
    unireg_abort(1);
  }

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4031
  if (opt_bin_log && mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0,
4032
                                        WRITE_CACHE, 0, max_binlog_size, 0, TRUE))
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    unireg_abort(1);
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4034 4035 4036

#ifdef HAVE_REPLICATION
  if (opt_bin_log && expire_logs_days)
4037
  {
4038
    time_t purge_time= server_start_time - expire_logs_days*24*60*60;
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4039 4040
    if (purge_time >= 0)
      mysql_bin_log.purge_logs_before_date(purge_time);
4041
  }
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#endif

  if (opt_myisam_log)
    (void) mi_log(1);
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#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && !defined(EMBEDDED_LIBRARY)
4048
  if (locked_in_memory && !getuid())
4049
  {
4050
    if (setreuid((uid_t)-1, 0) == -1)
4051
    {                        // this should never happen
4052
      sql_perror("setreuid");
4053 4054
      unireg_abort(1);
    }
4055 4056
    if (mlockall(MCL_CURRENT))
    {
4057
      if (global_system_variables.log_warnings)
4058
	sql_print_warning("Failed to lock memory. Errno: %d\n",errno);
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      locked_in_memory= 0;
4060
    }
4061 4062
    if (user_info)
      set_user(mysqld_user, user_info);
4063
  }
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  else
4065
#endif
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    locked_in_memory=0;
4067

4068
  ft_init_stopwords();
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  init_max_user_conn();
4071
  init_update_queries();
4072
  DBUG_RETURN(0);
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}
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4075

4076
#ifndef EMBEDDED_LIBRARY
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static void create_shutdown_thread()
{
#ifdef __WIN__
4081 4082
  hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name);
  pthread_t hThread;
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4083 4084
  if (mysql_thread_create(key_thread_handle_shutdown,
                          &hThread, &connection_attrib, handle_shutdown, 0))
4085
    sql_print_warning("Can't create thread to handle shutdown requests");
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4087 4088
  // On "Stop Service" we have to do regular shutdown
  Service.SetShutdownEvent(hEventShutdown);
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#endif /* __WIN__ */
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}
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4092
#endif /* EMBEDDED_LIBRARY */
4093 4094


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4095
#if (defined(_WIN32) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
4096
static void handle_connections_methods()
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{
4098 4099
  pthread_t hThread;
  DBUG_ENTER("handle_connections_methods");
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  if (hPipe == INVALID_HANDLE_VALUE &&
4101 4102
      (!have_tcpip || opt_disable_networking) &&
      !opt_enable_shared_memory)
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4103
  {
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4104
    sql_print_error("TCP/IP, --shared-memory, or --named-pipe should be configured on NT OS");
4105
    unireg_abort(1);				// Will not return
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  }
4107

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  mysql_mutex_lock(&LOCK_thread_count);
  mysql_cond_init(key_COND_handler_count, &COND_handler_count, NULL);
4110 4111
  handler_count=0;
  if (hPipe != INVALID_HANDLE_VALUE)
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  {
4113
    handler_count++;
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    if (mysql_thread_create(key_thread_handle_con_namedpipes,
                            &hThread, &connection_attrib,
                            handle_connections_namedpipes, 0))
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    {
4118
      sql_print_warning("Can't create thread to handle named pipes");
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      handler_count--;
    }
  }
  if (have_tcpip && !opt_disable_networking)
  {
    handler_count++;
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    if (mysql_thread_create(key_thread_handle_con_sockets,
                            &hThread, &connection_attrib,
                            handle_connections_sockets_thread, 0))
4128
    {
4129
      sql_print_warning("Can't create thread to handle TCP/IP");
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      handler_count--;
    }
  }
#ifdef HAVE_SMEM
  if (opt_enable_shared_memory)
  {
    handler_count++;
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    if (mysql_thread_create(key_thread_handle_con_sharedmem,
                            &hThread, &connection_attrib,
                            handle_connections_shared_memory, 0))
4140
    {
4141
      sql_print_warning("Can't create thread to handle shared memory");
4142
      handler_count--;
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    }
  }
4145
#endif 
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4147
  while (handler_count > 0)
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    mysql_cond_wait(&COND_handler_count, &LOCK_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
4150 4151
  DBUG_VOID_RETURN;
}
4152 4153 4154

void decrement_handler_count()
{
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4155
  mysql_mutex_lock(&LOCK_thread_count);
4156
  handler_count--;
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  mysql_cond_signal(&COND_handler_count);
  mysql_mutex_unlock(&LOCK_thread_count);
4159
  my_thread_end();
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}
#else
#define decrement_handler_count()
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4163
#endif /* defined(_WIN32) || defined(HAVE_SMEM) */
4164 4165


4166
#ifndef EMBEDDED_LIBRARY
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#ifndef DBUG_OFF
/*
  Debugging helper function to keep the locale database
  (see sql_locale.cc) and max_month_name_length and
  max_day_name_length variable values in consistent state.
*/
static void test_lc_time_sz()
{
  DBUG_ENTER("test_lc_time_sz");
  for (MY_LOCALE **loc= my_locales; *loc; loc++)
  {
    uint max_month_len= 0;
    uint max_day_len = 0;
    for (const char **month= (*loc)->month_names->type_names; *month; month++)
    {
      set_if_bigger(max_month_len,
                    my_numchars_mb(&my_charset_utf8_general_ci,
                                   *month, *month + strlen(*month)));
    }
    for (const char **day= (*loc)->day_names->type_names; *day; day++)
    {
      set_if_bigger(max_day_len,
                    my_numchars_mb(&my_charset_utf8_general_ci,
                                   *day, *day + strlen(*day)));
    }
    if ((*loc)->max_month_name_length != max_month_len ||
        (*loc)->max_day_name_length != max_day_len)
    {
      DBUG_PRINT("Wrong max day name(or month name) length for locale:",
                 ("%s", (*loc)->name));
      DBUG_ASSERT(0);
    }
  }
  DBUG_VOID_RETURN;
}
#endif//DBUG_OFF

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#ifdef __WIN__
int win_main(int argc, char **argv)
#else
4207
int mysqld_main(int argc, char **argv)
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#endif
{
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  /*
    Perform basic thread library and malloc initialization,
    to be able to read defaults files and parse options.
  */
  my_progname= argv[0];
  if (my_basic_init())
  {
    fprintf(stderr, "my_basic_init() failed.");
    return 1;
  }

  orig_argc= argc;
  orig_argv= argv;
  if (load_defaults(MYSQL_CONFIG_NAME, load_default_groups, &argc, &argv))
    return 1;
  defaults_argc= argc;
  defaults_argv= argv;
  remaining_argc= argc;
  remaining_argv= argv;

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

  sys_var_init();

#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
  /*
    The performance schema needs to be initialized as early as possible,
    before to-be-instrumented objects of the server are initialized.
  */
  int ho_error;
  DYNAMIC_ARRAY all_early_options;

  my_getopt_register_get_addr(NULL);
  /* Skip unknown options so that they may be processed later */
  my_getopt_skip_unknown= TRUE;

  /* prepare all_early_options array */
  my_init_dynamic_array(&all_early_options, sizeof(my_option), 100, 25);
  sys_var_add_options(&all_early_options, sys_var::PARSE_EARLY);
  add_terminator(&all_early_options);

  /*
    Logs generated while parsing the command line
    options are buffered and printed later.
  */
  buffered_logs.init();
  my_getopt_error_reporter= buffered_option_error_reporter;

  ho_error= handle_options(&remaining_argc, &remaining_argv,
                           (my_option*)(all_early_options.buffer), NULL);
  delete_dynamic(&all_early_options);
  if (ho_error == 0)
  {
    /* Add back the program name handle_options removes */
    remaining_argc++;
    remaining_argv--;
    if (pfs_param.m_enabled)
    {
      PSI_hook= initialize_performance_schema(&pfs_param);
      if (PSI_hook == NULL)
      {
        pfs_param.m_enabled= false;
        buffered_logs.buffer(WARNING_LEVEL,
                             "Performance schema disabled (reason: init failed).");
      }
    }
  }
#else
  /*
    Other provider of the instrumentation interface should
    initialize PSI_hook here:
    - HAVE_PSI_INTERFACE is for the instrumentation interface
    - WITH_PERFSCHEMA_STORAGE_ENGINE is for one implementation
      of the interface,
    but there could be alternate implementations, which is why
    these two defines are kept separate.
  */
#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */

#ifdef HAVE_PSI_INTERFACE
  /*
    Obtain the current performance schema instrumentation interface,
    if available.
  */
  if (PSI_hook)
    PSI_server= (PSI*) PSI_hook->get_interface(PSI_CURRENT_VERSION);

  if (PSI_server)
  {
    /*
      Now that we have parsed the command line arguments, and have initialized
      the performance schema itself, the next step is to register all the
      server instruments.
    */
    init_server_psi_keys();
    /* Instrument the main thread */
    PSI_thread *psi= PSI_server->new_thread(key_thread_main, NULL, 0);
    if (psi)
      PSI_server->set_thread(psi);

    /*
      Now that some instrumentation is in place,
      recreate objects which were initialised early,
      so that they are instrumented as well.
    */
    my_thread_basic_global_reinit();
  }
#endif /* HAVE_PSI_INTERFACE */

  my_init();                                   // init my_sys library & pthreads
  init_error_log_mutex();
4322

4323 4324 4325 4326 4327 4328 4329
  /* Set signal used to kill MySQL */
#if defined(SIGUSR2)
  thr_kill_signal= thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2;
#else
  thr_kill_signal= SIGINT;
#endif

4330 4331 4332
  /* Initialize audit interface globals. Audit plugins are inited later. */
  mysql_audit_initialize();

4333 4334 4335 4336 4337 4338
  /*
    Perform basic logger initialization logger. Should be called after
    MY_INIT, as it initializes mutexes. Log tables are inited later.
  */
  logger.init_base();

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4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360
#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
  if (ho_error)
  {
    /*
      Parsing command line option failed,
      Since we don't have a workable remaining_argc/remaining_argv
      to continue the server initialization, this is as far as this
      code can go.
      This is the best effort to log meaningful messages:
      - messages will be printed to stderr, which is not redirected yet,
      - messages will be printed in the NT event log, for windows.
    */
    buffered_logs.print();
    buffered_logs.cleanup();
    /*
      Not enough initializations for unireg_abort()
      Using exit() for windows.
    */
    exit (ho_error);
  }
#endif /* WITH_PERFSCHEMA_STORAGE_ENGINE */

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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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4369
  if (init_common_variables())
4370
    unireg_abort(1);				// Will do exit
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  init_signals();
4373
#if defined(__ia64__) || defined(__ia64)
4374 4375 4376 4377
  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
4378
  pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size*2);
4379
#else
4380
  pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size);
4381
#endif
4382 4383 4384 4385 4386
#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);
4387 4388 4389
#if defined(__ia64__) || defined(__ia64)
    stack_size/= 2;
#endif
4390
    /* We must check if stack_size = 0 as Solaris 2.9 can return 0 here */
4391
    if (stack_size && stack_size < my_thread_stack_size)
4392 4393
    {
      if (global_system_variables.log_warnings)
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	sql_print_warning("Asked for %lu thread stack, but got %ld",
4395
			  my_thread_stack_size, (long) stack_size);
4396
#if defined(__ia64__) || defined(__ia64)
4397
      my_thread_stack_size= stack_size*2;
4398
#else
4399
      my_thread_stack_size= stack_size;
4400
#endif
4401 4402 4403
    }
  }
#endif
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4405
  (void) thr_setconcurrency(concurrency);	// 10 by default
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4407 4408
  select_thread=pthread_self();
  select_thread_in_use=1;
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#ifdef HAVE_LIBWRAP
  libwrapName= my_progname+dirname_length(my_progname);
  openlog(libwrapName, LOG_PID, LOG_AUTH);
#endif

4415 4416 4417 4418
#ifndef DBUG_OFF
  test_lc_time_sz();
#endif

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  /*
    We have enough space for fiddling with the argv, continue
  */
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  check_data_home(mysql_real_data_home);
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  if (my_setwd(mysql_real_data_home,MYF(MY_WME)) && !opt_help)
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    unireg_abort(1);				/* purecov: inspected */
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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)
  {
4438
    server_id= 1;
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#ifdef EXTRA_DEBUG
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    sql_print_warning("You have enabled the binary log, but you haven't set "
                      "server-id to 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.");
4444
#endif
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  }

  if (init_server_components())
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    unireg_abort(1);
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4450
  init_ssl();
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  network_init();

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#ifdef __WIN__
  if (!opt_console)
  {
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    if (reopen_fstreams(log_error_file, stdout, stderr))
      unireg_abort(1);
4458
    setbuf(stderr, NULL);
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    FreeConsole();				// Remove window
4460
  }
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#endif

4463 4464 4465 4466 4467 4468
  /*
   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
  */
4473
  error_handler_hook= my_message_sql;
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  start_signal_handler();				// Creates pidfile
4475

4476
  if (mysql_rm_tmp_tables() || acl_init(opt_noacl) ||
4477
      my_tz_init((THD *)0, default_tz_name, opt_bootstrap))
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  {
    abort_loop=1;
    select_thread_in_use=0;
4481

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    (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL);
4483

4484

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    if (!opt_bootstrap)
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      mysql_file_delete(key_file_pid, pidfile_name, MYF(MY_WME)); // Not needed anymore
4487

4488
    if (unix_sock != INVALID_SOCKET)
4489
      unlink(mysqld_unix_port);
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    exit(1);
  }
4492

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  if (!opt_noacl)
4494
    (void) grant_init();
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  if (!opt_bootstrap)
    servers_init(0);

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  if (!opt_noacl)
4500 4501
  {
#ifdef HAVE_DLOPEN
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    udf_init();
#endif
4504
  }
4505

4506
  init_status_vars();
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  if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
    opt_skip_slave_start= 1;
4509 4510

  binlog_unsafe_map_init();
4511 4512 4513 4514 4515 4516 4517 4518 4519 4520
  /*
    init_slave() must be called after the thread keys are created.
    Some parts of the code (e.g. SHOW STATUS LIKE 'slave_running' and other
    places) assume that active_mi != 0, so let's fail if it's 0 (out of
    memory); a message has already been printed.
  */
  if (init_slave() && !active_mi)
  {
    unireg_abort(1);
  }
4521

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4522 4523
#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
  initialize_performance_schema_acl(opt_bootstrap);
4524 4525 4526 4527 4528 4529 4530 4531
  /*
    Do not check the structure of the performance schema tables
    during bootstrap:
    - the tables are not supposed to exist yet, bootstrap will create them
    - a check would print spurious error messages
  */
  if (! opt_bootstrap)
    check_performance_schema();
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#endif

  initialize_information_schema_acl();

4536 4537 4538 4539 4540
  execute_ddl_log_recovery();

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

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  if (opt_bootstrap)
  {
4543
    select_thread_in_use= 0;                    // Allow 'kill' to work
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    bootstrap(mysql_stdin);
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    unireg_abort(bootstrap_error ? 1 : 0);
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  }
4547
  if (opt_init_file && *opt_init_file)
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  {
    if (read_init_file(opt_init_file))
      unireg_abort(1);
  }
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4552

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4553
  create_shutdown_thread();
4554
  start_handle_manager();
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4555

4556
  sql_print_information(ER_DEFAULT(ER_STARTUP),my_progname,server_version,
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                        ((unix_sock == INVALID_SOCKET) ? (char*) ""
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                                                       : mysqld_unix_port),
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                         mysqld_port,
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                         MYSQL_COMPILATION_COMMENT);
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#if defined(_WIN32) && !defined(EMBEDDED_LIBRARY)
  Service.SetRunning();
#endif
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4564

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  /* Signal threads waiting for server to be started */
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4567
  mysql_mutex_lock(&LOCK_server_started);
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  mysqld_server_started= 1;
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4569 4570
  mysql_cond_signal(&COND_server_started);
  mysql_mutex_unlock(&LOCK_server_started);
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4571

4572
#if defined(_WIN32) || defined(HAVE_SMEM)
4573
  handle_connections_methods();
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4574
#else
4575 4576
  handle_connections_sockets();
#endif /* _WIN32 || HAVE_SMEM */
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4577 4578

  /* (void) pthread_attr_destroy(&connection_attrib); */
4579
  
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4580 4581 4582
  DBUG_PRINT("quit",("Exiting main thread"));

#ifndef __WIN__
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#ifdef EXTRA_DEBUG2
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4584 4585
  sql_print_error("Before Lock_thread_count");
#endif
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4586
  mysql_mutex_lock(&LOCK_thread_count);
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4587
  DBUG_PRINT("quit", ("Got thread_count mutex"));
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4588
  select_thread_in_use=0;			// For close_connections
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  mysql_mutex_unlock(&LOCK_thread_count);
  mysql_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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4594
#endif /* __WIN__ */
4595

4596 4597 4598 4599 4600 4601 4602 4603 4604
#ifdef HAVE_PSI_INTERFACE
  /*
    Disable the main thread instrumentation,
    to avoid recording events during the shutdown.
  */
  if (PSI_server)
    PSI_server->delete_current_thread();
#endif

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4605
  /* Wait until cleanup is done */
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4606
  mysql_mutex_lock(&LOCK_thread_count);
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  while (!ready_to_exit)
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    mysql_cond_wait(&COND_thread_count, &LOCK_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
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4610 4611

#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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4621
  clean_up(1);
4622
  mysqld_exit(0);
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4623 4624
}

4625
#endif /* !EMBEDDED_LIBRARY */
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4626

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SCRUM  
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4627

4628 4629 4630 4631 4632
/****************************************************************************
  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)
{
4636 4637 4638 4639
  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;
}

4643 4644 4645 4646 4647 4648 4649 4650

/* 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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4651 4652
    return strmake(to, from, length-1);
  return strxnmov(to, length-1, "\"", from, "\"", NullS);
4653 4654 4655
}


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4656 4657
/**
  Handle basic handling of services, like installation and removal.
4658

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  @param argv	   	        Pointer to argument list
  @param servicename		Internal name of service
  @param displayname		Display name of service (in taskbar ?)
  @param file_path		Path to this program
  @param startup_option	Startup option to mysqld

  @retval
4666
    0		option handled
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  @retval
4668
    1		Could not handle option
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4669
*/
4670

4671 4672 4673 4674 4675
static bool
default_service_handling(char **argv,
			 const char *servicename,
			 const char *displayname,
			 const char *file_path,
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4676 4677
			 const char *extra_opt,
			 const char *account_name)
4678
{
4679
  char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end;
4680
  const char *opt_delim;
4681
  end= path_and_service + sizeof(path_and_service)-3;
4682 4683 4684 4685 4686

  /* We have to quote filename if it contains spaces */
  pos= add_quoted_string(path_and_service, file_path, end);
  if (*extra_opt)
  {
4687 4688 4689 4690 4691
    /* 
     Add option after file_path. There will be zero or one extra option.  It's 
     assumed to be --defaults-file=file but isn't checked.  The variable (not
     the option name) should be quoted if it contains a string.  
    */
4692
    *pos++= ' ';
4693 4694 4695
    if (opt_delim= strchr(extra_opt, '='))
    {
      size_t length= ++opt_delim - extra_opt;
4696
      pos= strnmov(pos, extra_opt, length);
4697 4698 4699 4700 4701
    }
    else
      opt_delim= extra_opt;
    
    pos= add_quoted_string(pos, opt_delim, end);
4702
  }
4703 4704
  /* We must have servicename last */
  *pos++= ' ';
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4705
  (void) add_quoted_string(pos, servicename, end);
4706

4707 4708
  if (Service.got_service_option(argv, "install"))
  {
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4709 4710
    Service.Install(1, servicename, displayname, path_and_service,
                    account_name);
4711 4712 4713 4714
    return 0;
  }
  if (Service.got_service_option(argv, "install-manual"))
  {
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    Service.Install(0, servicename, displayname, path_and_service,
                    account_name);
4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727
    return 0;
  }
  if (Service.got_service_option(argv, "remove"))
  {
    Service.Remove(servicename);
    return 0;
  }
  return 1;
}


4728
int mysqld_main(int argc, char **argv)
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4729
{
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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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4734
  */
4735
  int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name,
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4736 4737
                                                  "MySQLShutdown"), 10);

4738 4739 4740
  /* Must be initialized early for comparison of service name */
  system_charset_info= &my_charset_utf8_general_ci;

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4741
  if (Service.GetOS())	/* true NT family */
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  {
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4743
    char file_path[FN_REFLEN];
4744
    my_path(file_path, argv[0], "");		      /* Find name in path */
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4745 4746
    fn_format(file_path,argv[0],file_path,"",
	      MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_RESOLVE_SYMLINKS);
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4747

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4748
    if (argc == 2)
4749
    {
4750
      if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME,
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4751
				   file_path, "", NULL))
4752
	return 0;
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      if (Service.IsService(argv[1]))        /* Start an optional service */
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      {
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4755 4756 4757 4758 4759 4760
	/*
	  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.
	*/
4761
	if (my_strcasecmp(system_charset_info, argv[1],"mysql"))
4762
	  load_default_groups[load_default_groups_sz-2]= argv[1];
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4763
        start_mode= 1;
4764
        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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4770 4771
      if (!default_service_handling(argv, argv[2], argv[2], file_path, "",
                                    NULL))
4772 4773
	return 0;
      if (Service.IsService(argv[2]))
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4774
      {
4775 4776 4777 4778
	/*
	  mysqld was started as
	  mysqld --defaults-file=my_path\my.ini service-name
	*/
4779
	use_opt_args=1;
4780
	opt_argc= 2;				// Skip service-name
4781 4782
	opt_argv=argv;
	start_mode= 1;
4783
	if (my_strcasecmp(system_charset_info, argv[2],"mysql"))
4784
	  load_default_groups[load_default_groups_sz-2]= argv[2];
4785
	Service.Init(argv[2], mysql_service);
4786
	return 0;
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4787 4788
      }
    }
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4789
    else if (argc == 4 || argc == 5)
4790 4791
    {
      /*
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4792 4793 4794 4795 4796
        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.)
4797
      */
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4798 4799 4800 4801 4802 4803 4804 4805 4806 4807 4808 4809 4810 4811 4812
      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;
4813
    }
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4814
    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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4822
  /* Start as standalone server */
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4823 4824 4825 4826 4827 4828 4829 4830
  Service.my_argc=argc;
  Service.my_argv=argv;
  mysql_service(NULL);
  return 0;
}
#endif


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4831
/**
4832 4833 4834
  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.
*/
4835

Marc Alff's avatar
Marc Alff committed
4836
static void bootstrap(MYSQL_FILE *file)
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4837
{
4838
  DBUG_ENTER("bootstrap");
4839

4840
  THD *thd= new THD;
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4841
  thd->bootstrap=1;
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4842
  my_net_init(&thd->net,(st_vio*) 0);
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4843
  thd->max_client_packet_length= thd->net.max_packet;
4844
  thd->security_ctx->master_access= ~(ulong)0;
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4845
  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
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4846
  thread_count++;
4847
  in_bootstrap= TRUE;
4848 4849

  bootstrap_file=file;
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4850
#ifndef EMBEDDED_LIBRARY			// TODO:  Enable this
Marc Alff's avatar
Marc Alff committed
4851 4852 4853
  if (mysql_thread_create(key_thread_bootstrap,
                          &thd->real_id, &connection_attrib, handle_bootstrap,
                          (void*) thd))
4854
  {
4855
    sql_print_warning("Can't create thread to handle bootstrap");
unknown's avatar
Merge  
unknown committed
4856 4857
    bootstrap_error=-1;
    DBUG_VOID_RETURN;
4858 4859
  }
  /* Wait for thread to die */
Marc Alff's avatar
Marc Alff committed
4860
  mysql_mutex_lock(&LOCK_thread_count);
4861
  while (in_bootstrap)
4862
  {
Marc Alff's avatar
Marc Alff committed
4863
    mysql_cond_wait(&COND_thread_count, &LOCK_thread_count);
4864 4865
    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
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4866
  mysql_mutex_unlock(&LOCK_thread_count);
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4867 4868
#else
  thd->mysql= 0;
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4869
  do_handle_bootstrap(thd);
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4870 4871
#endif

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Merge  
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4872
  DBUG_VOID_RETURN;
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}

4875

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4876 4877
static bool read_init_file(char *file_name)
{
Marc Alff's avatar
Marc Alff committed
4878
  MYSQL_FILE *file;
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4879 4880
  DBUG_ENTER("read_init_file");
  DBUG_PRINT("enter",("name: %s",file_name));
Marc Alff's avatar
Marc Alff committed
4881 4882
  if (!(file= mysql_file_fopen(key_file_init, file_name,
                               O_RDONLY, MYF(MY_WME))))
4883
    DBUG_RETURN(TRUE);
unknown's avatar
Merge  
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4884
  bootstrap(file);
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Marc Alff committed
4885
  mysql_file_fclose(file, MYF(MY_WME));
4886
  DBUG_RETURN(FALSE);
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4887 4888 4889
}


4890
#ifndef EMBEDDED_LIBRARY
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4891 4892 4893 4894 4895 4896 4897 4898 4899 4900

/*
   Simple scheduler that use the main thread to handle the request

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

     When we enter this function, LOCK_thread_count is hold!
*/
4901

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4902 4903
void handle_connection_in_main_thread(THD *thd)
{
Marc Alff's avatar
Marc Alff committed
4904
  mysql_mutex_assert_owner(&LOCK_thread_count);
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4905 4906
  thread_cache_size=0;			// Safety
  threads.append(thd);
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Marc Alff committed
4907
  mysql_mutex_unlock(&LOCK_thread_count);
4908
  thd->start_utime= my_micro_time();
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4909
  do_handle_one_connection(thd);
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}


/*
  Scheduler that uses one thread per connection
*/

void create_thread_to_handle_connection(THD *thd)
{
  if (cached_thread_count > wake_thread)
  {
    /* Get thread from cache */
    thread_cache.append(thd);
    wake_thread++;
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4924
    mysql_cond_signal(&COND_thread_cache);
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  }
  else
  {
4928
    char error_message_buff[MYSQL_ERRMSG_SIZE];
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    /* Create new thread to handle connection */
    int error;
    thread_created++;
    threads.append(thd);
    DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id));
4934
    thd->prior_thr_create_utime= thd->start_utime= my_micro_time();
Marc Alff's avatar
Marc Alff committed
4935 4936 4937 4938
    if ((error= mysql_thread_create(key_thread_one_connection,
                                    &thd->real_id, &connection_attrib,
                                    handle_one_connection,
                                    (void*) thd)))
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unknown committed
4939
    {
4940
      /* purecov: begin inspected */
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4941 4942 4943 4944 4945
      DBUG_PRINT("error",
                 ("Can't create thread to handle request (error %d)",
                  error));
      thread_count--;
      thd->killed= THD::KILL_CONNECTION;			// Safety
Marc Alff's avatar
Marc Alff committed
4946
      mysql_mutex_unlock(&LOCK_thread_count);
4947

Marc Alff's avatar
Marc Alff committed
4948
      mysql_mutex_lock(&LOCK_connection_count);
4949
      --connection_count;
Marc Alff's avatar
Marc Alff committed
4950
      mysql_mutex_unlock(&LOCK_connection_count);
4951

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4952
      statistic_increment(aborted_connects,&LOCK_status);
4953 4954 4955
      /* Can't use my_error() since store_globals has not been called. */
      my_snprintf(error_message_buff, sizeof(error_message_buff),
                  ER(ER_CANT_CREATE_THREAD), error);
Marc Alff's avatar
Marc Alff committed
4956
      net_send_error(thd, ER_CANT_CREATE_THREAD, error_message_buff, NULL);
Marc Alff's avatar
Marc Alff committed
4957
      mysql_mutex_lock(&LOCK_thread_count);
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unknown committed
4958 4959
      close_connection(thd,0,0);
      delete thd;
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Marc Alff committed
4960
      mysql_mutex_unlock(&LOCK_thread_count);
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4961 4962 4963 4964
      return;
      /* purecov: end */
    }
  }
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4965
  mysql_mutex_unlock(&LOCK_thread_count);
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4966 4967 4968 4969
  DBUG_PRINT("info",("Thread created"));
}


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4970
/**
4971 4972 4973 4974 4975 4976
  Create new thread to handle incoming connection.

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

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4977
    In single-threaded mode (\#define ONE_THREAD) connection will be
4978 4979
    handled inside this function.

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4980
  @param[in,out] thd    Thread handle of future thread.
4981 4982
*/

unknown's avatar
unknown committed
4983 4984 4985 4986
static void create_new_thread(THD *thd)
{
  DBUG_ENTER("create_new_thread");

4987 4988 4989 4990 4991
  /*
    Don't allow too many connections. We roughly check here that we allow
    only (max_connections + 1) connections.
  */

Marc Alff's avatar
Marc Alff committed
4992
  mysql_mutex_lock(&LOCK_connection_count);
4993 4994

  if (connection_count >= max_connections + 1 || abort_loop)
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4995
  {
Marc Alff's avatar
Marc Alff committed
4996
    mysql_mutex_unlock(&LOCK_connection_count);
4997

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4998
    DBUG_PRINT("error",("Too many connections"));
4999
    close_connection(thd, ER_CON_COUNT_ERROR, 1);
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5000 5001 5002
    delete thd;
    DBUG_VOID_RETURN;
  }
5003 5004 5005

  ++connection_count;

5006 5007 5008
  if (connection_count > max_used_connections)
    max_used_connections= connection_count;

Marc Alff's avatar
Marc Alff committed
5009
  mysql_mutex_unlock(&LOCK_connection_count);
5010 5011 5012

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

Marc Alff's avatar
Marc Alff committed
5013
  mysql_mutex_lock(&LOCK_thread_count);
5014

5015 5016 5017 5018 5019
  /*
    The initialization of thread_id is done in create_embedded_thd() for
    the embedded library.
    TODO: refactor this to avoid code duplication there
  */
unknown's avatar
unknown committed
5020
  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
unknown's avatar
unknown committed
5021

5022 5023
  thread_count++;

5024
  MYSQL_CALLBACK(thread_scheduler, add_connection, (thd));
5025

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5026 5027
  DBUG_VOID_RETURN;
}
5028 5029
#endif /* EMBEDDED_LIBRARY */

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5030

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5031 5032 5033 5034
#ifdef SIGNALS_DONT_BREAK_READ
inline void kill_broken_server()
{
  /* hack to get around signals ignored in syscalls for problem OS's */
5035
  if (unix_sock == INVALID_SOCKET ||
5036
      (!opt_disable_networking && ip_sock == INVALID_SOCKET))
unknown's avatar
unknown committed
5037 5038
  {
    select_thread_in_use = 0;
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unknown committed
5039
    /* The following call will never return */
5040
    kill_server((void*) MYSQL_KILL_SIGNAL);
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5041 5042 5043 5044 5045 5046
  }
}
#define MAYBE_BROKEN_SYSCALL kill_broken_server();
#else
#define MAYBE_BROKEN_SYSCALL
#endif
unknown's avatar
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5047 5048 5049

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

5050
#ifndef EMBEDDED_LIBRARY
5051

5052
void handle_connections_sockets()
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5053
{
5054
  my_socket UNINIT_VAR(sock), UNINIT_VAR(new_sock);
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5055 5056
  uint error_count=0;
  THD *thd;
5057
  struct sockaddr_storage cAddr;
5058
  int ip_flags=0,socket_flags=0,flags=0,retval;
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5059
  st_vio *vio_tmp;
5060 5061 5062 5063 5064 5065 5066 5067
#ifdef HAVE_POLL
  int socket_count= 0;
  struct pollfd fds[2]; // for ip_sock and unix_sock
#else
  fd_set readFDs,clientFDs;
  uint max_used_connection= (uint) (max(ip_sock,unix_sock)+1);
#endif

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unknown committed
5068 5069
  DBUG_ENTER("handle_connections_sockets");

5070
#ifndef HAVE_POLL
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5071
  FD_ZERO(&clientFDs);
5072 5073
#endif

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5074 5075
  if (ip_sock != INVALID_SOCKET)
  {
5076 5077 5078 5079 5080
#ifdef HAVE_POLL
    fds[socket_count].fd= ip_sock;
    fds[socket_count].events= POLLIN;
    socket_count++;
#else
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5081
    FD_SET(ip_sock,&clientFDs);
5082
#endif    
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5083 5084 5085 5086 5087
#ifdef HAVE_FCNTL
    ip_flags = fcntl(ip_sock, F_GETFL, 0);
#endif
  }
#ifdef HAVE_SYS_UN_H
5088 5089 5090 5091 5092
#ifdef HAVE_POLL
  fds[socket_count].fd= unix_sock;
  fds[socket_count].events= POLLIN;
  socket_count++;
#else
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unknown committed
5093
  FD_SET(unix_sock,&clientFDs);
5094
#endif
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5095
#ifdef HAVE_FCNTL
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5096
  socket_flags=fcntl(unix_sock, F_GETFL, 0);
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5097
#endif
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5098 5099 5100
#endif

  DBUG_PRINT("general",("Waiting for connections."));
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unknown committed
5101
  MAYBE_BROKEN_SYSCALL;
unknown's avatar
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5102 5103
  while (!abort_loop)
  {
5104 5105
#ifdef HAVE_POLL
    retval= poll(fds, socket_count, -1);
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5106
#else
5107 5108 5109 5110 5111 5112
    readFDs=clientFDs;

    retval= select((int) max_used_connection,&readFDs,0,0,0);
#endif

    if (retval < 0)
unknown's avatar
unknown committed
5113
    {
unknown's avatar
unknown committed
5114
      if (socket_errno != SOCKET_EINTR)
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unknown committed
5115 5116
      {
	if (!select_errors++ && !abort_loop)	/* purecov: inspected */
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unknown committed
5117
	  sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */
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unknown committed
5118
      }
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unknown committed
5119
      MAYBE_BROKEN_SYSCALL
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unknown committed
5120 5121
      continue;
    }
5122

unknown's avatar
unknown committed
5123
    if (abort_loop)
unknown's avatar
unknown committed
5124 5125
    {
      MAYBE_BROKEN_SYSCALL;
unknown's avatar
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5126
      break;
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5127
    }
unknown's avatar
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5128

5129
    /* Is this a new connection request ? */
5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144
#ifdef HAVE_POLL
    for (int i= 0; i < socket_count; ++i) 
    {
      if (fds[i].revents & POLLIN)
      {
        sock= fds[i].fd;
#ifdef HAVE_FCNTL
        flags= fcntl(sock, F_GETFL, 0);
#else
        flags= 0;
#endif // HAVE_FCNTL
        break;
      }
    }
#else  // HAVE_POLL
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5145 5146 5147 5148 5149 5150 5151
#ifdef HAVE_SYS_UN_H
    if (FD_ISSET(unix_sock,&readFDs))
    {
      sock = unix_sock;
      flags= socket_flags;
    }
    else
5152
#endif // HAVE_SYS_UN_H
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5153 5154 5155 5156
    {
      sock = ip_sock;
      flags= ip_flags;
    }
5157
#endif // HAVE_POLL
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5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170

#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++)
    {
5171 5172 5173
      size_socket length= sizeof(struct sockaddr_storage);
      new_sock= accept(sock, (struct sockaddr *)(&cAddr),
                       &length);
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unknown committed
5174 5175
      if (new_sock != INVALID_SOCKET ||
	  (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN))
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5176
	break;
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unknown committed
5177
      MAYBE_BROKEN_SYSCALL;
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5178 5179 5180 5181 5182 5183 5184 5185 5186 5187 5188 5189
#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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unknown committed
5190
    if (new_sock == INVALID_SOCKET)
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5191 5192 5193
    {
      if ((error_count++ & 255) == 0)		// This can happen often
	sql_perror("Error in accept");
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unknown committed
5194
      MAYBE_BROKEN_SYSCALL;
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unknown committed
5195
      if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE)
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5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206
	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);
5207 5208
	my_fromhost(&req);
	if (!my_hosts_access(&req))
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5209
	{
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unknown committed
5210 5211 5212 5213 5214
	  /*
	    This may be stupid but refuse() includes an exit(0)
	    which we surely don't want...
	    clean_exit() - same stupid thing ...
	  */
5215
	  syslog(deny_severity, "refused connect from %s",
5216
		 my_eval_client(&req));
unknown's avatar
unknown committed
5217

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unknown committed
5218 5219 5220 5221 5222 5223
	  /*
	    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...
	  */
unknown's avatar
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5224 5225 5226
	  if (req.sink)
	    ((void (*)(int))req.sink)(req.fd);

5227
	  (void) shutdown(new_sock, SHUT_RDWR);
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	  (void) closesocket(new_sock);
	  continue;
	}
      }
    }
#endif /* HAVE_LIBWRAP */

    {
      size_socket dummyLen;
5237 5238 5239 5240
      struct sockaddr_storage dummy;
      dummyLen = sizeof(dummy);
      if (  getsockname(new_sock,(struct sockaddr *)&dummy, 
                  (SOCKET_SIZE_TYPE *)&dummyLen) < 0  )
unknown's avatar
unknown committed
5241 5242
      {
	sql_perror("Error on new connection socket");
5243
	(void) shutdown(new_sock, SHUT_RDWR);
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5244 5245 5246 5247 5248 5249 5250 5251 5252 5253 5254
	(void) closesocket(new_sock);
	continue;
      }
    }

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

    if (!(thd= new THD))
    {
5255
      (void) shutdown(new_sock, SHUT_RDWR);
Konstantin Osipov's avatar
Konstantin Osipov committed
5256
      (void) closesocket(new_sock);
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5257 5258 5259
      continue;
    }
    if (!(vio_tmp=vio_new(new_sock,
5260
			  sock == unix_sock ? VIO_TYPE_SOCKET :
unknown's avatar
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5261
			  VIO_TYPE_TCPIP,
5262
			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
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5263 5264
	my_net_init(&thd->net,vio_tmp))
    {
5265 5266 5267 5268 5269 5270 5271
      /*
        Only delete the temporary vio if we didn't already attach it to the
        NET object. The destructor in THD will delete any initialized net
        structure.
      */
      if (vio_tmp && thd->net.vio != vio_tmp)
        vio_delete(vio_tmp);
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5272 5273
      else
      {
5274
	(void) shutdown(new_sock, SHUT_RDWR);
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5275 5276 5277 5278 5279 5280
	(void) closesocket(new_sock);
      }
      delete thd;
      continue;
    }
    if (sock == unix_sock)
5281
      thd->security_ctx->host=(char*) my_localhost;
5282

unknown's avatar
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5283 5284
    create_new_thread(thd);
  }
5285 5286 5287
  DBUG_VOID_RETURN;
}

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5288

5289 5290 5291 5292 5293
#ifdef _WIN32
pthread_handler_t handle_connections_sockets_thread(void *arg)
{
  my_thread_init();
  handle_connections_sockets();
5294
  decrement_handler_count();
5295
  return 0;
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5296 5297
}

5298
pthread_handler_t handle_connections_namedpipes(void *arg)
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5299 5300
{
  HANDLE hConnectedPipe;
5301
  OVERLAPPED connectOverlapped= {0};
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5302 5303 5304
  THD *thd;
  my_thread_init();
  DBUG_ENTER("handle_connections_namedpipes");
5305 5306 5307 5308 5309 5310
  connectOverlapped.hEvent= CreateEvent(NULL, TRUE, FALSE, NULL);
  if (!connectOverlapped.hEvent)
  {
    sql_print_error("Can't create event, last error=%u", GetLastError());
    unireg_abort(1);
  }
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5311 5312 5313 5314
  DBUG_PRINT("general",("Waiting for named pipe connections."));
  while (!abort_loop)
  {
    /* wait for named pipe connection */
5315 5316 5317 5318 5319 5320 5321 5322 5323 5324
    BOOL fConnected= ConnectNamedPipe(hPipe, &connectOverlapped);
    if (!fConnected && (GetLastError() == ERROR_IO_PENDING))
    {
        /*
          ERROR_IO_PENDING says async IO has started but not yet finished.
          GetOverlappedResult will wait for completion.
        */
        DWORD bytes;
        fConnected= GetOverlappedResult(hPipe, &connectOverlapped,&bytes, TRUE);
    }
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unknown committed
5325 5326
    if (abort_loop)
      break;
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5327
    if (!fConnected)
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5328
      fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
unknown's avatar
unknown committed
5329
    if (!fConnected)
unknown's avatar
unknown committed
5330
    {
unknown's avatar
Merge  
unknown committed
5331 5332
      CloseHandle(hPipe);
      if ((hPipe= CreateNamedPipe(pipe_name,
5333 5334
                                  PIPE_ACCESS_DUPLEX |
                                  FILE_FLAG_OVERLAPPED,
unknown's avatar
Merge  
unknown committed
5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345
                                  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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5346 5347 5348 5349 5350 5351 5352
      {
	sql_perror("Can't create new named pipe!");
	break;					// Abort
      }
    }
    hConnectedPipe = hPipe;
    /* create new pipe for new connection */
5353
    if ((hPipe = CreateNamedPipe(pipe_name,
5354 5355
                 PIPE_ACCESS_DUPLEX |
                 FILE_FLAG_OVERLAPPED,
unknown's avatar
unknown committed
5356 5357 5358 5359
				 PIPE_TYPE_BYTE |
				 PIPE_READMODE_BYTE |
				 PIPE_WAIT,
				 PIPE_UNLIMITED_INSTANCES,
5360 5361
				 (int) global_system_variables.net_buffer_length,
				 (int) global_system_variables.net_buffer_length,
unknown's avatar
unknown committed
5362 5363 5364 5365 5366 5367 5368 5369 5370
				 NMPWAIT_USE_DEFAULT_WAIT,
				 &saPipeSecurity)) ==
	INVALID_HANDLE_VALUE)
    {
      sql_perror("Can't create new named pipe!");
      hPipe=hConnectedPipe;
      continue;					// We have to try again
    }

unknown's avatar
unknown committed
5371
    if (!(thd = new THD))
unknown's avatar
unknown committed
5372
    {
unknown's avatar
Merge  
unknown committed
5373 5374
      DisconnectNamedPipe(hConnectedPipe);
      CloseHandle(hConnectedPipe);
unknown's avatar
unknown committed
5375 5376
      continue;
    }
5377
    if (!(thd->net.vio= vio_new_win32pipe(hConnectedPipe)) ||
unknown's avatar
unknown committed
5378 5379
	my_net_init(&thd->net, thd->net.vio))
    {
5380
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
unknown's avatar
unknown committed
5381 5382 5383
      delete thd;
      continue;
    }
5384 5385
    /* Host is unknown */
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0));
unknown's avatar
unknown committed
5386 5387
    create_new_thread(thd);
  }
5388
  CloseHandle(connectOverlapped.hEvent);
5389
  DBUG_LEAVE;
5390
  decrement_handler_count();
5391
  return 0;
unknown's avatar
unknown committed
5392
}
Vladislav Vaintroub's avatar
Vladislav Vaintroub committed
5393
#endif /* _WIN32 */
unknown's avatar
unknown committed
5394

5395

unknown's avatar
unknown committed
5396
#ifdef HAVE_SMEM
5397

unknown's avatar
unknown committed
5398 5399
/**
  Thread of shared memory's service.
5400

unknown's avatar
unknown committed
5401 5402
  @param arg                              Arguments of thread
*/
5403
pthread_handler_t handle_connections_shared_memory(void *arg)
5404
{
5405 5406
  /* file-mapping object, use for create shared memory */
  HANDLE handle_connect_file_map= 0;
5407
  char  *handle_connect_map= 0;                 // pointer on shared memory
5408 5409 5410
  HANDLE event_connect_answer= 0;
  ulong smem_buffer_length= shared_memory_buffer_length + 4;
  ulong connect_number= 1;
5411
  char *tmp= NULL;
5412 5413
  char *suffix_pos;
  char connect_number_char[22], *p;
5414
  const char *errmsg= 0;
5415
  SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0;
5416 5417 5418 5419
  my_thread_init();
  DBUG_ENTER("handle_connections_shared_memorys");
  DBUG_PRINT("general",("Waiting for allocated shared memory."));

5420 5421 5422 5423 5424 5425
  /*
     get enough space base-name + '_' + longest suffix we might ever send
   */
  if (!(tmp= (char *)my_malloc(strlen(shared_memory_base_name) + 32L, MYF(MY_FAE))))
    goto error;

5426 5427 5428 5429 5430 5431 5432 5433
  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;

5434 5435 5436 5437 5438 5439 5440
  /*
    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)
  */
5441
  suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS);
5442
  strmov(suffix_pos, "CONNECT_REQUEST");
5443 5444
  if ((smem_event_connect_request= CreateEvent(sa_event,
                                               FALSE, FALSE, tmp)) == 0)
5445
  {
5446
    errmsg= "Could not create request event";
5447 5448
    goto error;
  }
5449
  strmov(suffix_pos, "CONNECT_ANSWER");
5450
  if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5451
  {
5452
    errmsg="Could not create answer event";
5453 5454
    goto error;
  }
5455
  strmov(suffix_pos, "CONNECT_DATA");
5456 5457 5458
  if ((handle_connect_file_map=
       CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                         PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0)
5459
  {
5460
    errmsg= "Could not create file mapping";
5461 5462
    goto error;
  }
5463 5464 5465
  if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map,
						  FILE_MAP_WRITE,0,0,
						  sizeof(DWORD))) == 0)
5466
  {
5467
    errmsg= "Could not create shared memory service";
5468 5469 5470 5471 5472
    goto error;
  }

  while (!abort_loop)
  {
5473
    /* Wait a request from client */
5474
    WaitForSingleObject(smem_event_connect_request,INFINITE);
5475

unknown's avatar
unknown committed
5476 5477 5478
    /*
       it can be after shutdown command
    */
unknown's avatar
Merge  
unknown committed
5479
    if (abort_loop)
unknown's avatar
unknown committed
5480
      goto error;
5481

5482 5483 5484 5485 5486 5487
    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
unknown committed
5488
    HANDLE event_conn_closed= 0;
5489
    THD *thd= 0;
5490

5491
    p= int10_to_str(connect_number, connect_number_char, 10);
5492 5493 5494 5495 5496 5497 5498 5499 5500 5501
    /*
      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);
5502
    strmov(suffix_pos, "DATA");
5503 5504 5505
    if ((handle_client_file_map=
         CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                           PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0)
5506
    {
5507
      errmsg= "Could not create file mapping";
5508 5509
      goto errorconn;
    }
5510 5511 5512
    if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map,
						  FILE_MAP_WRITE,0,0,
						  smem_buffer_length)) == 0)
5513
    {
5514
      errmsg= "Could not create memory map";
5515 5516 5517
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_WROTE");
5518
    if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5519
    {
5520
      errmsg= "Could not create client write event";
5521 5522 5523
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_READ");
5524
    if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5525
    {
5526
      errmsg= "Could not create client read event";
5527 5528 5529
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_READ");
5530
    if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5531
    {
5532
      errmsg= "Could not create server read event";
5533 5534 5535
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_WROTE");
5536 5537
    if ((event_server_wrote= CreateEvent(sa_event,
                                         FALSE, FALSE, tmp)) == 0)
5538
    {
5539
      errmsg= "Could not create server write event";
5540 5541
      goto errorconn;
    }
unknown's avatar
unknown committed
5542
    strmov(suffix_pos, "CONNECTION_CLOSED");
5543 5544
    if ((event_conn_closed= CreateEvent(sa_event,
                                        TRUE, FALSE, tmp)) == 0)
unknown's avatar
unknown committed
5545 5546 5547 5548
    {
      errmsg= "Could not create closed connection event";
      goto errorconn;
    }
5549
    if (abort_loop)
5550
      goto errorconn;
5551 5552 5553
    if (!(thd= new THD))
      goto errorconn;
    /* Send number of connection to client */
5554
    int4store(handle_connect_map, connect_number);
5555
    if (!SetEvent(event_connect_answer))
5556
    {
5557
      errmsg= "Could not send answer event";
5558 5559
      goto errorconn;
    }
5560
    /* Set event that client should receive data */
5561 5562
    if (!SetEvent(event_client_read))
    {
5563
      errmsg= "Could not set client to read mode";
5564 5565
      goto errorconn;
    }
5566
    if (!(thd->net.vio= vio_new_win32shared_memory(handle_client_file_map,
unknown's avatar
unknown committed
5567 5568 5569 5570 5571
                                                   handle_client_map,
                                                   event_client_wrote,
                                                   event_client_read,
                                                   event_server_wrote,
                                                   event_server_read,
unknown's avatar
unknown committed
5572
                                                   event_conn_closed)) ||
unknown's avatar
unknown committed
5573
                        my_net_init(&thd->net, thd->net.vio))
5574
    {
5575
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
5576 5577
      errmsg= 0;
      goto errorconn;
5578
    }
5579
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */
5580
    create_new_thread(thd);
5581 5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592
    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);
    }
5593
    if (handle_client_file_map)
unknown's avatar
unknown committed
5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606
      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);
5607
    delete thd;
5608
  }
5609 5610

  /* End shared memory handling */
5611
error:
5612
  if (tmp)
5613
    my_free(tmp);
5614

5615 5616 5617 5618 5619 5620
  if (errmsg)
  {
    char buff[180];
    strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS);
    sql_perror(buff);
  }
5621 5622
  my_security_attr_free(sa_event);
  my_security_attr_free(sa_mapping);
5623 5624 5625
  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);
5626
  if (smem_event_connect_request) CloseHandle(smem_event_connect_request);
5627
  DBUG_LEAVE;
5628
  decrement_handler_count();
5629
  return 0;
5630 5631
}
#endif /* HAVE_SMEM */
5632
#endif /* EMBEDDED_LIBRARY */
unknown's avatar
unknown committed
5633

5634 5635 5636

/****************************************************************************
  Handle start options
unknown's avatar
unknown committed
5637 5638
******************************************************************************/

5639
DYNAMIC_ARRAY all_options;
5640

5641 5642 5643 5644 5645
/**
  System variables are automatically command-line options (few
  exceptions are documented in sys_var.h), so don't need
  to be listed here.
*/
5646

Marc Alff's avatar
Marc Alff committed
5647
struct my_option my_long_options[]=
5648
{
unknown's avatar
unknown committed
5649
  {"help", '?', "Display this help and exit.", 
5650
   &opt_help, &opt_help, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
unknown's avatar
unknown committed
5651 5652
   0, 0},
#ifdef HAVE_REPLICATION
5653
  {"abort-slave-event-count", 0,
unknown's avatar
unknown committed
5654
   "Option used by mysql-test for debugging and testing of replication.",
5655
   &abort_slave_event_count,  &abort_slave_event_count,
unknown's avatar
unknown committed
5656 5657
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif /* HAVE_REPLICATION */
5658
  {"allow-suspicious-udfs", 0,
unknown's avatar
unknown committed
5659 5660
   "Allows use of UDFs consisting of only one symbol xxx() "
   "without corresponding xxx_init() or xxx_deinit(). That also means "
5661 5662
   "that one can load any function from any library, for example exit() "
   "from libc.so",
5663
   &opt_allow_suspicious_udfs, &opt_allow_suspicious_udfs,
5664
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5665 5666
  {"ansi", 'a', "Use ANSI SQL syntax instead of MySQL syntax. This mode "
   "will also set transaction isolation level 'serializable'.", 0, 0, 0,
unknown's avatar
unknown committed
5667
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
unknown's avatar
unknown committed
5668
  {"bind-address", OPT_BIND_ADDRESS, "IP address to bind to.",
5669
   &my_bind_addr_str, &my_bind_addr_str, 0, GET_STR,
unknown's avatar
unknown committed
5670
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5671
  {"binlog-do-db", OPT_BINLOG_DO_DB,
5672 5673
   "Tells the master it should log updates for the specified database, "
   "and exclude all others not explicitly mentioned.",
5674
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
unknown's avatar
unknown committed
5675
  {"binlog-ignore-db", OPT_BINLOG_IGNORE_DB,
Staale Smedseng's avatar
Staale Smedseng committed
5676
   "Tells the master that updates to the given database should not be logged to the binary log.",
5677
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5678
  {"binlog-row-event-max-size", 0,
5679 5680 5681
   "The maximum size of a row-based binary log event in bytes. Rows will be "
   "grouped into events smaller than this size if possible. "
   "The value has to be a multiple of 256.",
5682 5683
   &opt_binlog_rows_event_max_size, &opt_binlog_rows_event_max_size,
   0, GET_ULONG, REQUIRED_ARG,
5684 5685 5686 5687
   /* def_value */ 1024, /* min_value */  256, /* max_value */ ULONG_MAX, 
   /* sub_size */     0, /* block_size */ 256, 
   /* app_type */ 0
  },
5688
#ifndef DISABLE_GRANT_OPTIONS
5689
  {"bootstrap", OPT_BOOTSTRAP, "Used by mysql installation scripts.", 0, 0, 0,
5690
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5691
#endif
5692
  {"character-set-client-handshake", 0,
unknown's avatar
unknown committed
5693
   "Don't ignore client side character set value sent during handshake.",
5694 5695
   &opt_character_set_client_handshake,
   &opt_character_set_client_handshake,
5696
    0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
5697
  {"character-set-filesystem", 0,
unknown's avatar
unknown committed
5698
   "Set the filesystem character set.",
5699 5700
   &character_set_filesystem_name,
   &character_set_filesystem_name,
unknown's avatar
unknown committed
5701
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
unknown's avatar
unknown committed
5702
  {"character-set-server", 'C', "Set the default character set.",
5703
   &default_character_set_name, &default_character_set_name,
unknown's avatar
unknown committed
5704
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
unknown's avatar
unknown committed
5705
  {"chroot", 'r', "Chroot mysqld daemon during startup.",
5706
   &mysqld_chroot, &mysqld_chroot, 0, GET_STR, REQUIRED_ARG,
unknown's avatar
unknown committed
5707
   0, 0, 0, 0, 0, 0},
5708
  {"collation-server", 0, "Set the default collation.",
5709
   &default_collation_name, &default_collation_name,
unknown's avatar
unknown committed
5710
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
Staale Smedseng's avatar
Staale Smedseng committed
5711
  {"console", OPT_CONSOLE, "Write error output on screen; don't remove the console window on windows.",
5712
   &opt_console, &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0,
5713
   0, 0, 0},
5714
  {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG,
5715
   NO_ARG, 0, 0, 0, 0, 0, 0},
5716 5717 5718
  /* default-storage-engine should have "MyISAM" as def_value. Instead
     of initializing it here it is done in init_common_variables() due
     to a compiler bug in Sun Studio compiler. */
5719
  {"default-storage-engine", 0, "The default storage engine for new tables",
5720
   &default_storage_engine, 0, 0, GET_STR, REQUIRED_ARG,
5721
   0, 0, 0, 0, 0, 0 },
5722
  {"default-time-zone", 0, "Set the default time zone.",
5723
   &default_tz_name, &default_tz_name,
5724
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
unknown's avatar
unknown committed
5725
#ifdef HAVE_OPENSSL
5726
  {"des-key-file", 0,
unknown's avatar
unknown committed
5727
   "Load keys for des_encrypt() and des_encrypt from given file.",
5728
   &des_key_file, &des_key_file, 0, GET_STR, REQUIRED_ARG,
unknown's avatar
unknown committed
5729 5730 5731
   0, 0, 0, 0, 0, 0},
#endif /* HAVE_OPENSSL */
#ifdef HAVE_REPLICATION
5732
  {"disconnect-slave-event-count", 0,
unknown's avatar
unknown committed
5733
   "Option used by mysql-test for debugging and testing of replication.",
5734 5735
   &disconnect_slave_event_count, &disconnect_slave_event_count,
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
unknown's avatar
unknown committed
5736
#endif /* HAVE_REPLICATION */
Staale Smedseng's avatar
Staale Smedseng committed
5737
  {"exit-info", 'T', "Used for debugging. Use at your own risk.", 0, 0, 0,
5738
   GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0},
5739 5740 5741 5742 5743

  {"external-locking", 0, "Use system (external) locking (disabled by "
   "default).  With this option enabled you can run myisamchk to test "
   "(not repair) tables while the MySQL server is running. Disable with "
   "--skip-external-locking.", &opt_external_locking, &opt_external_locking,
unknown's avatar
unknown committed
5744
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5745 5746
  /* We must always support the next option to make scripts like mysqltest
     easier to do */
5747
  {"gdb", 0,
Staale Smedseng's avatar
Staale Smedseng committed
5748
   "Set up signals usable for debugging.",
5749
   &opt_debugging, &opt_debugging,
5750
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5751
#ifdef HAVE_LARGE_PAGE_OPTION
5752
  {"super-large-pages", 0, "Enable support for super large pages.",
5753
   &opt_super_large_pages, &opt_super_large_pages, 0,
5754
   GET_BOOL, OPT_ARG, 0, 0, 1, 0, 1, 0},
unknown's avatar
Merge  
unknown committed
5755
#endif
5756
  {"language", 'L',
5757 5758
   "Client error messages in given language. May be given as a full path. "
   "Deprecated. Use --lc-messages-dir instead.",
5759
   &lc_messages_dir_ptr, &lc_messages_dir_ptr, 0,
5760
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5761
  {"lc-messages", 0,
5762
   "Set the language used for the error messages.",
5763
   &lc_messages, &lc_messages, 0, GET_STR, REQUIRED_ARG,
5764
   0, 0, 0, 0, 0, 0 },
5765
  {"lc-time-names", 0,
5766
   "Set the language used for the month names and the days of the week.",
5767
   &lc_time_names_name, &lc_time_names_name,
5768
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
5769
  {"log", 'l', "Log connections and queries to file (deprecated option, use "
5770 5771
   "--general-log/--general-log-file instead).", &opt_logname, &opt_logname,
   0, GET_STR_ALLOC, OPT_ARG, 0, 0, 0, 0, 0, 0},
5772
  {"log-bin", OPT_BIN_LOG,
unknown's avatar
Merge  
unknown committed
5773 5774 5775
   "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.",
5776
   &opt_bin_logname, &opt_bin_logname, 0, GET_STR_ALLOC,
unknown's avatar
unknown committed
5777
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5778
  {"log-bin-index", 0,
5779
   "File that holds the names for last binary log files.",
5780
   &opt_binlog_index_name, &opt_binlog_index_name, 0, GET_STR,
5781
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5782
  {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.",
5783
   &myisam_log_filename, &myisam_log_filename, 0, GET_STR,
5784
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5785
  {"log-short-format", 0,
unknown's avatar
unknown committed
5786
   "Don't log extra information to update and slow-query logs.",
5787
   &opt_short_log_format, &opt_short_log_format,
unknown's avatar
unknown committed
5788
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5789
  {"log-slow-admin-statements", 0,
5790 5791
   "Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to "
   "the slow log if it is open.", &opt_log_slow_admin_statements,
5792
   &opt_log_slow_admin_statements, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5793
 {"log-slow-slave-statements", 0,
5794
  "Log slow statements executed by slave thread to the slow log if it is open.",
5795
  &opt_log_slow_slave_statements, &opt_log_slow_slave_statements,
5796
  0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
Konstantin Osipov's avatar
Konstantin Osipov committed
5797 5798 5799 5800 5801
  {"log-slow-queries", OPT_SLOW_QUERY_LOG,
   "Log slow queries to a table or log file. Defaults logging to table "
   "mysql.slow_log or hostname-slow.log if --log-output=file is used. "
   "Must be enabled to activate other slow log options. "
   "Deprecated option, use --slow-query-log/--slow-query-log-file instead.",
5802
   &opt_slow_logname, &opt_slow_logname, 0, GET_STR_ALLOC, OPT_ARG,
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5803
   0, 0, 0, 0, 0, 0},
5804
  {"log-tc", 0,
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5805
   "Path to transaction coordinator log (used for transactions that affect "
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5806
   "more than one storage engine, when binary log is disabled).",
5807
   &opt_tc_log_file, &opt_tc_log_file, 0, GET_STR,
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5808
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5809
#ifdef HAVE_MMAP
5810
  {"log-tc-size", 0, "Size of transaction coordinator log.",
5811
   &opt_tc_log_size, &opt_tc_log_size, 0, GET_ULONG,
5812 5813
   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, ULONG_MAX, 0,
   TC_LOG_PAGE_SIZE, 0},
5814
#endif
5815
  {"master-info-file", 0,
5816 5817 5818
   "The location and name of the file that remembers the master and where "
   "the I/O replication thread is in the master's binlogs.",
   &master_info_file, &master_info_file, 0, GET_STR,
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5819
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5820
  {"master-retry-count", 0,
5821
   "The number of tries the slave will make to connect to the master before giving up.",
5822
   &master_retry_count, &master_retry_count, 0, GET_ULONG,
5823
   REQUIRED_ARG, 3600*24, 0, 0, 0, 0, 0},
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5824
#ifdef HAVE_REPLICATION
5825
  {"init-rpl-role", 0, "Set the replication role.",
5826
   &rpl_status, &rpl_status, &rpl_role_typelib,
5827 5828
   GET_ENUM, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"max-binlog-dump-events", 0,
5829
   "Option used by mysql-test for debugging and testing of replication.",
5830
   &max_binlog_dump_events, &max_binlog_dump_events, 0,
5831
   GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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5832
#endif /* HAVE_REPLICATION */
5833
  {"memlock", 0, "Lock mysqld in memory.", &locked_in_memory,
5834
   &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5835
  {"one-thread", OPT_ONE_THREAD,
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5836 5837
   "(Deprecated): Only use one thread (for debugging under Linux). Use "
   "thread-handling=no-threads instead.",
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5838
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5839
  {"old-style-user-limits", 0,
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5840 5841
   "Enable old-style user limits (before 5.0.3, user resources were counted "
   "per each user+host vs. per account).",
5842
   &opt_old_style_user_limits, &opt_old_style_user_limits,
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5843
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5844
  {"port-open-timeout", 0,
5845
   "Maximum time in seconds to wait for the port to become free. "
5846 5847
   "(Default: No wait).", &mysqld_port_timeout, &mysqld_port_timeout, 0,
   GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5848
  {"replicate-do-db", OPT_REPLICATE_DO_DB,
5849 5850 5851 5852 5853 5854 5855
   "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.%.",
5856 5857
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-do-table", OPT_REPLICATE_DO_TABLE,
5858 5859 5860 5861
   "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},
5862
  {"replicate-ignore-db", OPT_REPLICATE_IGNORE_DB,
5863 5864 5865 5866 5867 5868
   "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},
5869
  {"replicate-ignore-table", OPT_REPLICATE_IGNORE_TABLE,
5870 5871 5872
   "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-database updates, in contrast to "
5873
   "replicate-ignore-db.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5874
  {"replicate-rewrite-db", OPT_REPLICATE_REWRITE_DB,
5875 5876
   "Updates to a database with a different name than the original. Example: "
   "replicate-rewrite-db=master_db_name->slave_db_name.",
5877
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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5878
#ifdef HAVE_REPLICATION
5879
  {"replicate-same-server-id", 0,
5880 5881 5882 5883
   "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.",
   &replicate_same_server_id, &replicate_same_server_id,
5884
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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5885
#endif
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5886
  {"replicate-wild-do-table", OPT_REPLICATE_WILD_DO_TABLE,
5887 5888 5889 5890 5891 5892
   "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.",
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5893 5894
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-wild-ignore-table", OPT_REPLICATE_WILD_IGNORE_TABLE,
5895 5896 5897 5898 5899 5900
   "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.",
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5901
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5902 5903
  {"safe-mode", OPT_SAFE, "Skip some optimize stages (for testing).",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5904
  {"safe-user-create", 0,
5905
   "Don't allow new user creation by the user who has no write privileges to the mysql.user table.",
5906
   &opt_safe_user_create, &opt_safe_user_create, 0, GET_BOOL,
5907
   NO_ARG, 0, 0, 0, 0, 0, 0},
5908
  {"show-slave-auth-info", 0,
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5909
   "Show user and password in SHOW SLAVE HOSTS on this master.",
5910
   &opt_show_slave_auth_info, &opt_show_slave_auth_info, 0,
5911
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5912
#ifndef DISABLE_GRANT_OPTIONS
5913
  {"skip-grant-tables", 0,
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5914
   "Start without grant tables. This gives all users FULL ACCESS to all tables.",
5915
   &opt_noacl, &opt_noacl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
5916
   0},
5917
#endif
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5918 5919
  {"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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5920
  {"skip-new", OPT_SKIP_NEW, "Don't use new, possibly wrong routines.",
5921
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5922
  {"skip-slave-start", 0,
5923 5924
   "If set, slave is not autostarted.", &opt_skip_slave_start,
   &opt_skip_slave_start, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5925
  {"skip-stack-trace", OPT_SKIP_STACK_TRACE,
5926
   "Don't print a stack trace on failure.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
5927 5928
   0, 0, 0, 0},
  {"skip-thread-priority", OPT_SKIP_PRIOR,
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5929 5930 5931
   "Don't give threads different priorities. This option is deprecated "
   "because it has no effect; the implied behavior is already the default.",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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5932
#ifdef HAVE_REPLICATION
5933
  {"sporadic-binlog-dump-fail", 0,
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5934
   "Option used by mysql-test for debugging and testing of replication.",
5935 5936
   &opt_sporadic_binlog_dump_fail,
   &opt_sporadic_binlog_dump_fail, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
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5937 5938
   0},
#endif /* HAVE_REPLICATION */
5939
#ifdef HAVE_OPENSSL
5940 5941
  {"ssl", 0,
   "Enable SSL for connection (automatically enabled with other flags).",
5942
   &opt_use_ssl, &opt_use_ssl, 0, GET_BOOL, OPT_ARG, 0, 0, 0,
5943
   0, 0, 0},
5944
#endif
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5945
#ifdef __WIN__
5946
  {"standalone", 0,
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5947 5948 5949 5950
  "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.",
5951
   &my_use_symdir, &my_use_symdir, 0, GET_BOOL, NO_ARG,
5952 5953 5954 5955 5956
   /*
     The system call realpath() produces warnings under valgrind and
     purify. These are not suppressed: instead we disable symlinks
     option if compiled with valgrind support.
   */
5957
   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
5958
  {"sysdate-is-now", 0,
5959 5960 5961 5962
   "Non-default option to alias SYSDATE() to NOW() to make it safe-replicable. "
   "Since 5.0, SYSDATE() returns a `dynamic' value different for different "
   "invocations, even within the same statement.",
   &global_system_variables.sysdate_is_now,
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5963
   0, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
5964
  {"tc-heuristic-recover", 0,
5965
   "Decision to use in heuristic recover process. Possible values are COMMIT "
5966
   "or ROLLBACK.", &tc_heuristic_recover, &tc_heuristic_recover,
5967
   &tc_heuristic_recover_typelib, GET_ENUM, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5968 5969 5970 5971 5972
#if defined(ENABLED_DEBUG_SYNC)
  {"debug-sync-timeout", OPT_DEBUG_SYNC_TIMEOUT,
   "Enable the debug sync facility "
   "and optionally specify a default wait timeout in seconds. "
   "A zero value keeps the facility disabled.",
5973
   &opt_debug_sync_timeout, 0,
5974 5975
   0, GET_UINT, OPT_ARG, 0, 0, UINT_MAX, 0, 0, 0},
#endif /* defined(ENABLED_DEBUG_SYNC) */
5976
  {"temp-pool", 0,
5977
#if (ENABLE_TEMP_POOL)
5978 5979
   "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.",
5980 5981 5982
#else
   "This option is ignored on this OS.",
#endif
5983
   &use_temp_pool, &use_temp_pool, 0, GET_BOOL, NO_ARG, 1,
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5984
   0, 0, 0, 0, 0},
5985 5986
  {"transaction-isolation", 0,
   "Default transaction isolation level.",
5987 5988
   &global_system_variables.tx_isolation,
   &global_system_variables.tx_isolation, &tx_isolation_typelib,
5989
   GET_ENUM, REQUIRED_ARG, ISO_REPEATABLE_READ, 0, 0, 0, 0, 0},
5990
  {"user", 'u', "Run mysqld daemon as user.", 0, 0, 0, GET_STR, REQUIRED_ARG,
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5991
   0, 0, 0, 0, 0, 0},
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5992
  {"verbose", 'v', "Used with --help option for detailed help.",
5993
   &opt_verbose, &opt_verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5994
  {"version", 'V', "Output version information and exit.", 0, 0, 0, GET_NO_ARG,
5995
   NO_ARG, 0, 0, 0, 0, 0, 0},
5996
  {"plugin-load", 0,
5997
   "Optional semicolon-separated list of plugins to load, where each plugin is "
5998 5999
   "identified as name=library, where name is the plugin name and library "
   "is the plugin library in plugin_dir.",
6000
   &opt_plugin_load, &opt_plugin_load, 0,
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6001
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6002
  {"table_cache", 0, "Deprecated; use --table-open-cache instead.",
6003
   &table_cache_size, &table_cache_size, 0, GET_ULONG,
6004
   REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0},
6005
  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
6006
};
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6007

6008

6009
static int show_queries(THD *thd, SHOW_VAR *var, char *buff)
6010
{
6011
  var->type= SHOW_LONGLONG;
6012 6013 6014 6015
  var->value= (char *)&thd->query_id;
  return 0;
}

6016

6017
static int show_net_compression(THD *thd, SHOW_VAR *var, char *buff)
6018
{
6019
  var->type= SHOW_MY_BOOL;
6020 6021 6022 6023
  var->value= (char *)&thd->net.compress;
  return 0;
}

6024
static int show_starttime(THD *thd, SHOW_VAR *var, char *buff)
6025
{
6026
  var->type= SHOW_LONG;
6027
  var->value= buff;
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6028
  *((long *)buff)= (long) (thd->query_start() - server_start_time);
6029 6030 6031
  return 0;
}

6032
#ifdef ENABLED_PROFILING
6033 6034 6035 6036 6037 6038 6039
static int show_flushstatustime(THD *thd, SHOW_VAR *var, char *buff)
{
  var->type= SHOW_LONG;
  var->value= buff;
  *((long *)buff)= (long) (thd->query_start() - flush_status_time);
  return 0;
}
6040
#endif
6041

6042
#ifdef HAVE_REPLICATION
6043
static int show_rpl_status(THD *thd, SHOW_VAR *var, char *buff)
6044
{
6045
  var->type= SHOW_CHAR;
6046 6047 6048 6049
  var->value= const_cast<char*>(rpl_status_type[(int)rpl_status]);
  return 0;
}

6050
static int show_slave_running(THD *thd, SHOW_VAR *var, char *buff)
6051
{
6052
  var->type= SHOW_MY_BOOL;
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6053
  mysql_mutex_lock(&LOCK_active_mi);
6054
  var->value= buff;
6055 6056
  *((my_bool *)buff)= (my_bool) (active_mi && 
                                 active_mi->slave_running == MYSQL_SLAVE_RUN_CONNECT &&
6057
                                 active_mi->rli.slave_running);
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6058
  mysql_mutex_unlock(&LOCK_active_mi);
6059 6060 6061
  return 0;
}

6062
static int show_slave_retried_trans(THD *thd, SHOW_VAR *var, char *buff)
6063 6064 6065 6066 6067
{
  /*
    TODO: with multimaster, have one such counter per line in
    SHOW SLAVE STATUS, and have the sum over all lines here.
  */
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6068
  mysql_mutex_lock(&LOCK_active_mi);
6069 6070
  if (active_mi)
  {
6071
    var->type= SHOW_LONG;
6072
    var->value= buff;
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6073
    mysql_mutex_lock(&active_mi->rli.data_lock);
6074
    *((long *)buff)= (long)active_mi->rli.retried_trans;
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6075
    mysql_mutex_unlock(&active_mi->rli.data_lock);
6076 6077
  }
  else
6078
    var->type= SHOW_UNDEF;
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6079
  mysql_mutex_unlock(&LOCK_active_mi);
6080 6081
  return 0;
}
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6082 6083 6084

static int show_slave_received_heartbeats(THD *thd, SHOW_VAR *var, char *buff)
{
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6085
  mysql_mutex_lock(&LOCK_active_mi);
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6086 6087 6088 6089
  if (active_mi)
  {
    var->type= SHOW_LONGLONG;
    var->value= buff;
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6090
    mysql_mutex_lock(&active_mi->rli.data_lock);
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6091
    *((longlong *)buff)= active_mi->received_heartbeats;
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6092
    mysql_mutex_unlock(&active_mi->rli.data_lock);
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  }
  else
    var->type= SHOW_UNDEF;
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6096
  mysql_mutex_unlock(&LOCK_active_mi);
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  return 0;
}

static int show_heartbeat_period(THD *thd, SHOW_VAR *var, char *buff)
{
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6102
  mysql_mutex_lock(&LOCK_active_mi);
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6103 6104 6105 6106
  if (active_mi)
  {
    var->type= SHOW_CHAR;
    var->value= buff;
6107
    sprintf(buff, "%.3f", active_mi->heartbeat_period);
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6108 6109 6110
  }
  else
    var->type= SHOW_UNDEF;
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6111
  mysql_mutex_unlock(&LOCK_active_mi);
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6112 6113 6114 6115
  return 0;
}


6116 6117
#endif /* HAVE_REPLICATION */

6118
static int show_open_tables(THD *thd, SHOW_VAR *var, char *buff)
6119
{
6120
  var->type= SHOW_LONG;
6121 6122 6123 6124 6125
  var->value= buff;
  *((long *)buff)= (long)cached_open_tables();
  return 0;
}

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6126 6127 6128 6129
static int show_prepared_stmt_count(THD *thd, SHOW_VAR *var, char *buff)
{
  var->type= SHOW_LONG;
  var->value= buff;
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6130
  mysql_mutex_lock(&LOCK_prepared_stmt_count);
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6131
  *((long *)buff)= (long)prepared_stmt_count;
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6132
  mysql_mutex_unlock(&LOCK_prepared_stmt_count);
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6133 6134 6135
  return 0;
}

6136
static int show_table_definitions(THD *thd, SHOW_VAR *var, char *buff)
6137
{
6138
  var->type= SHOW_LONG;
6139 6140 6141 6142 6143
  var->value= buff;
  *((long *)buff)= (long)cached_table_definitions();
  return 0;
}

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6144
#if defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY)
6145
/* Functions relying on CTX */
6146
static int show_ssl_ctx_sess_accept(THD *thd, SHOW_VAR *var, char *buff)
6147
{
6148
  var->type= SHOW_LONG;
6149 6150 6151 6152 6153 6154
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept(ssl_acceptor_fd->ssl_context));
  return 0;
}

6155
static int show_ssl_ctx_sess_accept_good(THD *thd, SHOW_VAR *var, char *buff)
6156
{
6157
  var->type= SHOW_LONG;
6158 6159 6160 6161 6162 6163
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

6164
static int show_ssl_ctx_sess_connect_good(THD *thd, SHOW_VAR *var, char *buff)
6165
{
6166
  var->type= SHOW_LONG;
6167 6168 6169 6170 6171 6172
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

6173
static int show_ssl_ctx_sess_accept_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
6174
{
6175
  var->type= SHOW_LONG;
6176 6177 6178 6179 6180 6181
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

6182
static int show_ssl_ctx_sess_connect_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
6183
{
6184
  var->type= SHOW_LONG;
6185 6186 6187 6188 6189 6190
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

6191
static int show_ssl_ctx_sess_cb_hits(THD *thd, SHOW_VAR *var, char *buff)
6192
{
6193
  var->type= SHOW_LONG;
6194 6195 6196 6197 6198 6199
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cb_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

6200
static int show_ssl_ctx_sess_hits(THD *thd, SHOW_VAR *var, char *buff)
6201
{
6202
  var->type= SHOW_LONG;
6203 6204 6205 6206 6207 6208
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

6209
static int show_ssl_ctx_sess_cache_full(THD *thd, SHOW_VAR *var, char *buff)
6210
{
6211
  var->type= SHOW_LONG;
6212 6213 6214 6215 6216 6217
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cache_full(ssl_acceptor_fd->ssl_context));
  return 0;
}

6218
static int show_ssl_ctx_sess_misses(THD *thd, SHOW_VAR *var, char *buff)
6219
{
6220
  var->type= SHOW_LONG;
6221 6222 6223 6224 6225 6226
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_misses(ssl_acceptor_fd->ssl_context));
  return 0;
}

6227
static int show_ssl_ctx_sess_timeouts(THD *thd, SHOW_VAR *var, char *buff)
6228
{
6229
  var->type= SHOW_LONG;
6230 6231 6232 6233 6234 6235
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context));
  return 0;
}

6236
static int show_ssl_ctx_sess_number(THD *thd, SHOW_VAR *var, char *buff)
6237
{
6238
  var->type= SHOW_LONG;
6239 6240 6241 6242 6243 6244
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context));
  return 0;
}

6245
static int show_ssl_ctx_sess_connect(THD *thd, SHOW_VAR *var, char *buff)
6246
{
6247
  var->type= SHOW_LONG;
6248 6249 6250 6251 6252 6253
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context));
  return 0;
}

6254
static int show_ssl_ctx_sess_get_cache_size(THD *thd, SHOW_VAR *var, char *buff)
6255
{
6256
  var->type= SHOW_LONG;
6257 6258 6259 6260 6261 6262
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context));
  return 0;
}

6263
static int show_ssl_ctx_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
6264
{
6265
  var->type= SHOW_LONG;
6266 6267 6268 6269 6270 6271
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context));
  return 0;
}

6272
static int show_ssl_ctx_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
6273
{
6274
  var->type= SHOW_LONG;
6275 6276 6277 6278 6279 6280
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context));
  return 0;
}

6281
static int show_ssl_ctx_get_session_cache_mode(THD *thd, SHOW_VAR *var, char *buff)
6282
{
6283
  var->type= SHOW_CHAR;
6284
  if (!ssl_acceptor_fd)
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6285
    var->value= const_cast<char*>("NONE");
6286 6287 6288 6289
  else
    switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
    {
    case SSL_SESS_CACHE_OFF:
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6290
      var->value= const_cast<char*>("OFF"); break;
6291
    case SSL_SESS_CACHE_CLIENT:
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6292
      var->value= const_cast<char*>("CLIENT"); break;
6293
    case SSL_SESS_CACHE_SERVER:
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6294
      var->value= const_cast<char*>("SERVER"); break;
6295
    case SSL_SESS_CACHE_BOTH:
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6296
      var->value= const_cast<char*>("BOTH"); break;
6297
    case SSL_SESS_CACHE_NO_AUTO_CLEAR:
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6298
      var->value= const_cast<char*>("NO_AUTO_CLEAR"); break;
6299
    case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
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6300
      var->value= const_cast<char*>("NO_INTERNAL_LOOKUP"); break;
6301
    default:
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6302
      var->value= const_cast<char*>("Unknown"); break;
6303 6304 6305 6306
    }
  return 0;
}

6307 6308 6309 6310 6311 6312 6313
/*
   Functions relying on SSL 
   Note: In the show_ssl_* functions, we need to check if we have a
         valid vio-object since this isn't always true, specifically
         when session_status or global_status is requested from
         inside an Event.
 */
6314
static int show_ssl_get_version(THD *thd, SHOW_VAR *var, char *buff)
6315
{
6316
  var->type= SHOW_CHAR;
6317 6318 6319
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    var->value= const_cast<char*>(SSL_get_version((SSL*) thd->net.vio->ssl_arg));
  else
6320
    var->value= (char *)"";
6321 6322 6323
  return 0;
}

6324
static int show_ssl_session_reused(THD *thd, SHOW_VAR *var, char *buff)
6325
{
6326
  var->type= SHOW_LONG;
6327
  var->value= buff;
6328 6329 6330 6331
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_session_reused((SSL*) thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
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6332
  return 0;
6333 6334
}

6335
static int show_ssl_get_default_timeout(THD *thd, SHOW_VAR *var, char *buff)
6336
{
6337
  var->type= SHOW_LONG;
6338
  var->value= buff;
6339 6340 6341 6342
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_get_default_timeout((SSL*)thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
6343 6344 6345
  return 0;
}

6346
static int show_ssl_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
6347
{
6348
  var->type= SHOW_LONG;
6349
  var->value= buff;
6350 6351 6352 6353
  if( thd->net.vio && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_get_verify_mode((SSL*)thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
6354 6355 6356
  return 0;
}

6357
static int show_ssl_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
6358
{
6359
  var->type= SHOW_LONG;
6360
  var->value= buff;
6361 6362 6363 6364
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    *((long *)buff)= (long)SSL_get_verify_depth((SSL*)thd->net.vio->ssl_arg);
  else
    *((long *)buff)= 0;
6365 6366 6367
  return 0;
}

6368
static int show_ssl_get_cipher(THD *thd, SHOW_VAR *var, char *buff)
6369
{
6370
  var->type= SHOW_CHAR;
6371 6372 6373
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    var->value= const_cast<char*>(SSL_get_cipher((SSL*) thd->net.vio->ssl_arg));
  else
6374
    var->value= (char *)"";
6375 6376 6377
  return 0;
}

6378
static int show_ssl_get_cipher_list(THD *thd, SHOW_VAR *var, char *buff)
6379
{
6380
  var->type= SHOW_CHAR;
6381
  var->value= buff;
6382
  if (thd->vio_ok() && thd->net.vio->ssl_arg)
6383 6384 6385
  {
    int i;
    const char *p;
6386 6387 6388
    char *end= buff + SHOW_VAR_FUNC_BUFF_SIZE;
    for (i=0; (p= SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i)) &&
               buff < end; i++)
6389
    {
6390
      buff= strnmov(buff, p, end-buff-1);
6391 6392 6393 6394 6395 6396 6397 6398 6399
      *buff++= ':';
    }
    if (i)
      buff--;
  }
  *buff=0;
  return 0;
}

Konstantin Osipov's avatar
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6400
#endif /* HAVE_OPENSSL && !EMBEDDED_LIBRARY */
6401

6402

6403 6404 6405 6406
/*
  Variables shown by SHOW STATUS in alphabetical order
*/

6407
SHOW_VAR status_vars[]= {
6408 6409
  {"Aborted_clients",          (char*) &aborted_threads,        SHOW_LONG},
  {"Aborted_connects",         (char*) &aborted_connects,       SHOW_LONG},
6410 6411
  {"Binlog_cache_disk_use",    (char*) &binlog_cache_disk_use,  SHOW_LONG},
  {"Binlog_cache_use",         (char*) &binlog_cache_use,       SHOW_LONG},
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  {"Binlog_stmt_cache_disk_use",(char*) &binlog_stmt_cache_disk_use,  SHOW_LONG},
  {"Binlog_stmt_cache_use",    (char*) &binlog_stmt_cache_use,       SHOW_LONG},
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  {"Bytes_received",           (char*) offsetof(STATUS_VAR, bytes_received), SHOW_LONGLONG_STATUS},
  {"Bytes_sent",               (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONGLONG_STATUS},
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6416
  {"Com",                      (char*) com_status_vars, SHOW_ARRAY},
6417
  {"Compression",              (char*) &show_net_compression, SHOW_FUNC},
6418
  {"Connections",              (char*) &thread_id,              SHOW_LONG_NOFLUSH},
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6419
  {"Created_tmp_disk_tables",  (char*) offsetof(STATUS_VAR, created_tmp_disk_tables), SHOW_LONG_STATUS},
6420
  {"Created_tmp_files",	       (char*) &my_tmp_file_created,	SHOW_LONG},
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Merge  
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6421
  {"Created_tmp_tables",       (char*) offsetof(STATUS_VAR, created_tmp_tables), SHOW_LONG_STATUS},
6422
  {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
6423
  {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG_NOFLUSH},
6424
  {"Delayed_writes",           (char*) &delayed_insert_writes,  SHOW_LONG},
6425
  {"Flush_commands",           (char*) &refresh_version,        SHOW_LONG_NOFLUSH},
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6426 6427 6428 6429 6430 6431
  {"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},
6432
  {"Handler_read_last",        (char*) offsetof(STATUS_VAR, ha_read_last_count), SHOW_LONG_STATUS},
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6433 6434 6435 6436 6437 6438 6439 6440 6441
  {"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},
6442
  {"Key_blocks_not_flushed",   (char*) offsetof(KEY_CACHE, global_blocks_changed), SHOW_KEY_CACHE_LONG},
6443 6444
  {"Key_blocks_unused",        (char*) offsetof(KEY_CACHE, blocks_unused), SHOW_KEY_CACHE_LONG},
  {"Key_blocks_used",          (char*) offsetof(KEY_CACHE, blocks_used), SHOW_KEY_CACHE_LONG},
6445 6446 6447 6448
  {"Key_read_requests",        (char*) offsetof(KEY_CACHE, global_cache_r_requests), SHOW_KEY_CACHE_LONGLONG},
  {"Key_reads",                (char*) offsetof(KEY_CACHE, global_cache_read), SHOW_KEY_CACHE_LONGLONG},
  {"Key_write_requests",       (char*) offsetof(KEY_CACHE, global_cache_w_requests), SHOW_KEY_CACHE_LONGLONG},
  {"Key_writes",               (char*) offsetof(KEY_CACHE, global_cache_write), SHOW_KEY_CACHE_LONGLONG},
6449
  {"Last_query_cost",          (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS},
6450
  {"Max_used_connections",     (char*) &max_used_connections,  SHOW_LONG},
6451 6452 6453
  {"Not_flushed_delayed_rows", (char*) &delayed_rows_in_use,    SHOW_LONG_NOFLUSH},
  {"Open_files",               (char*) &my_file_opened,         SHOW_LONG_NOFLUSH},
  {"Open_streams",             (char*) &my_stream_opened,       SHOW_LONG_NOFLUSH},
6454 6455
  {"Open_table_definitions",   (char*) &show_table_definitions, SHOW_FUNC},
  {"Open_tables",              (char*) &show_open_tables,       SHOW_FUNC},
6456
  {"Opened_files",             (char*) &my_file_total_opened, SHOW_LONG_NOFLUSH},
unknown's avatar
Merge  
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6457
  {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
6458
  {"Opened_table_definitions", (char*) offsetof(STATUS_VAR, opened_shares), SHOW_LONG_STATUS},
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unknown committed
6459
  {"Prepared_stmt_count",      (char*) &show_prepared_stmt_count, SHOW_FUNC},
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unknown committed
6460
#ifdef HAVE_QUERY_CACHE
6461 6462
  {"Qcache_free_blocks",       (char*) &query_cache.free_memory_blocks, SHOW_LONG_NOFLUSH},
  {"Qcache_free_memory",       (char*) &query_cache.free_memory, SHOW_LONG_NOFLUSH},
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6463
  {"Qcache_hits",              (char*) &query_cache.hits,       SHOW_LONG},
6464
  {"Qcache_inserts",           (char*) &query_cache.inserts,    SHOW_LONG},
6465
  {"Qcache_lowmem_prunes",     (char*) &query_cache.lowmem_prunes, SHOW_LONG},
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6466
  {"Qcache_not_cached",        (char*) &query_cache.refused,    SHOW_LONG},
6467 6468
  {"Qcache_queries_in_cache",  (char*) &query_cache.queries_in_cache, SHOW_LONG_NOFLUSH},
  {"Qcache_total_blocks",      (char*) &query_cache.total_blocks, SHOW_LONG_NOFLUSH},
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6469
#endif /*HAVE_QUERY_CACHE*/
6470
  {"Queries",                  (char*) &show_queries,            SHOW_FUNC},
6471
  {"Questions",                (char*) offsetof(STATUS_VAR, questions), SHOW_LONG_STATUS},
6472 6473 6474
#ifdef HAVE_REPLICATION
  {"Rpl_status",               (char*) &show_rpl_status,          SHOW_FUNC},
#endif
unknown's avatar
Merge  
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6475 6476 6477 6478 6479
  {"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},
6480
  {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
6481 6482
#ifdef HAVE_REPLICATION
  {"Slave_retried_transactions",(char*) &show_slave_retried_trans, SHOW_FUNC},
Andrei Elkin's avatar
Andrei Elkin committed
6483 6484
  {"Slave_heartbeat_period",   (char*) &show_heartbeat_period, SHOW_FUNC},
  {"Slave_received_heartbeats",(char*) &show_slave_received_heartbeats, SHOW_FUNC},
6485 6486
  {"Slave_running",            (char*) &show_slave_running,     SHOW_FUNC},
#endif
6487
  {"Slow_launch_threads",      (char*) &slow_launch_threads,    SHOW_LONG},
unknown's avatar
Merge  
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6488 6489 6490 6491 6492
  {"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},
unknown's avatar
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6493
#ifdef HAVE_OPENSSL
Konstantin Osipov's avatar
Konstantin Osipov committed
6494
#ifndef EMBEDDED_LIBRARY
6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517
  {"Ssl_accept_renegotiates",  (char*) &show_ssl_ctx_sess_accept_renegotiate, SHOW_FUNC},
  {"Ssl_accepts",              (char*) &show_ssl_ctx_sess_accept, SHOW_FUNC},
  {"Ssl_callback_cache_hits",  (char*) &show_ssl_ctx_sess_cb_hits, SHOW_FUNC},
  {"Ssl_cipher",               (char*) &show_ssl_get_cipher, SHOW_FUNC},
  {"Ssl_cipher_list",          (char*) &show_ssl_get_cipher_list, SHOW_FUNC},
  {"Ssl_client_connects",      (char*) &show_ssl_ctx_sess_connect, SHOW_FUNC},
  {"Ssl_connect_renegotiates", (char*) &show_ssl_ctx_sess_connect_renegotiate, SHOW_FUNC},
  {"Ssl_ctx_verify_depth",     (char*) &show_ssl_ctx_get_verify_depth, SHOW_FUNC},
  {"Ssl_ctx_verify_mode",      (char*) &show_ssl_ctx_get_verify_mode, SHOW_FUNC},
  {"Ssl_default_timeout",      (char*) &show_ssl_get_default_timeout, SHOW_FUNC},
  {"Ssl_finished_accepts",     (char*) &show_ssl_ctx_sess_accept_good, SHOW_FUNC},
  {"Ssl_finished_connects",    (char*) &show_ssl_ctx_sess_connect_good, SHOW_FUNC},
  {"Ssl_session_cache_hits",   (char*) &show_ssl_ctx_sess_hits, SHOW_FUNC},
  {"Ssl_session_cache_misses", (char*) &show_ssl_ctx_sess_misses, SHOW_FUNC},
  {"Ssl_session_cache_mode",   (char*) &show_ssl_ctx_get_session_cache_mode, SHOW_FUNC},
  {"Ssl_session_cache_overflows", (char*) &show_ssl_ctx_sess_cache_full, SHOW_FUNC},
  {"Ssl_session_cache_size",   (char*) &show_ssl_ctx_sess_get_cache_size, SHOW_FUNC},
  {"Ssl_session_cache_timeouts", (char*) &show_ssl_ctx_sess_timeouts, SHOW_FUNC},
  {"Ssl_sessions_reused",      (char*) &show_ssl_session_reused, SHOW_FUNC},
  {"Ssl_used_session_cache_entries",(char*) &show_ssl_ctx_sess_number, SHOW_FUNC},
  {"Ssl_verify_depth",         (char*) &show_ssl_get_verify_depth, SHOW_FUNC},
  {"Ssl_verify_mode",          (char*) &show_ssl_get_verify_mode, SHOW_FUNC},
  {"Ssl_version",              (char*) &show_ssl_get_version, SHOW_FUNC},
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6518
#endif
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6519
#endif /* HAVE_OPENSSL */
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6520 6521
  {"Table_locks_immediate",    (char*) &locks_immediate,        SHOW_LONG},
  {"Table_locks_waited",       (char*) &locks_waited,           SHOW_LONG},
6522
#ifdef HAVE_MMAP
unknown's avatar
Merge  
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6523 6524 6525
  {"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},
6526
#endif
6527
  {"Threads_cached",           (char*) &cached_thread_count,    SHOW_LONG_NOFLUSH},
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Konstantin Osipov committed
6528
  {"Threads_connected",        (char*) &connection_count,       SHOW_INT},
6529 6530
  {"Threads_created",	       (char*) &thread_created,		SHOW_LONG_NOFLUSH},
  {"Threads_running",          (char*) &thread_running,         SHOW_INT},
6531
  {"Uptime",                   (char*) &show_starttime,         SHOW_FUNC},
6532
#ifdef ENABLED_PROFILING
6533
  {"Uptime_since_flush_status",(char*) &show_flushstatustime,   SHOW_FUNC},
6534
#endif
6535
  {NullS, NullS, SHOW_LONG}
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6536 6537
};

Marc Alff's avatar
Marc Alff committed
6538
bool add_terminator(DYNAMIC_ARRAY *options)
6539 6540
{
  my_option empty_element= {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0};
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Marc Alff committed
6541
  return insert_dynamic(options, (uchar *)&empty_element);
6542 6543
}

6544
#ifndef EMBEDDED_LIBRARY
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unknown committed
6545 6546
static void print_version(void)
{
6547
  set_server_version();
6548

6549 6550
  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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6551 6552
}

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/** Compares two options' names, treats - and _ the same */
static int option_cmp(my_option *a, my_option *b)
{
  const char *sa= a->name;
  const char *sb= b->name;
  for (; *sa || *sb; sa++, sb++)
  {
    if (*sa < *sb)
    {
      if (*sa == '-' && *sb == '_')
        continue;
      else
        return -1;
    }
    if (*sa > *sb)
    {
      if (*sa == '_' && *sb == '-')
        continue;
      else
        return 1;
    }
  }
  DBUG_ASSERT(a->name == b->name);
  return 0;
}

static void print_help()
{
  MEM_ROOT mem_root;
  init_alloc_root(&mem_root, 4096, 4096);

  pop_dynamic(&all_options);
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6585
  sys_var_add_options(&all_options, sys_var::PARSE_EARLY);
6586 6587
  add_plugin_options(&all_options, &mem_root);
  sort_dynamic(&all_options, (qsort_cmp) option_cmp);
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6588
  add_terminator(&all_options);
6589 6590 6591 6592 6593 6594 6595 6596

  my_print_help((my_option*) all_options.buffer);
  my_print_variables((my_option*) all_options.buffer);

  free_root(&mem_root, MYF(0));
  delete_dynamic(&all_options);
}

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static void usage(void)
{
6599
  DBUG_ENTER("usage");
6600
  if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
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6601 6602 6603 6604 6605
					           MY_CS_PRIMARY,
						   MYF(MY_WME))))
    exit(1);
  if (!default_collation_name)
    default_collation_name= (char*) default_charset_info->name;
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6606
  print_version();
6607 6608
  puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000, 2010"));
  puts("Starts the MySQL database server.\n");
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6609
  printf("Usage: %s [OPTIONS]\n", my_progname);
6610
  if (!opt_verbose)
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6611
    puts("\nFor more help options (several pages), use mysqld --verbose --help.");
6612 6613
  else
  {
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#ifdef __WIN__
  puts("NT and Win32 specific options:\n\
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6616 6617 6618 6619 6620 6621 6622 6623
  --install                     Install the default service (NT).\n\
  --install-manual              Install the default service started manually (NT).\n\
  --install service_name        Install an optional service (NT).\n\
  --install-manual service_name Install an optional service started manually (NT).\n\
  --remove                      Remove the default service from the service list (NT).\n\
  --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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");
6625
  puts("");
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#endif
6627
  print_defaults(MYSQL_CONFIG_NAME,load_default_groups);
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  puts("");
  set_ports();
6630

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6631
  /* Print out all the options including plugin supplied options */
6632
  print_help();
6633

6634 6635 6636 6637 6638 6639 6640
  if (! plugins_are_initialized)
  {
    puts("\n\
Plugins have parameters that are not reflected in this list\n\
because execution stopped before plugins were initialized.");
  }

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6641
  puts("\n\
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6642
To see what values a running MySQL server is using, type\n\
6643
'mysqladmin variables' instead of 'mysqld --verbose --help'.");
6644
  }
6645
  DBUG_VOID_RETURN;
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6646
}
6647
#endif /*!EMBEDDED_LIBRARY*/
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6648

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6649
/**
6650
  Initialize MySQL global variables to default values.
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6651

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6652
  @note
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    The reason to set a lot of global variables to zero is to allow one to
    restart the embedded server with a clean environment
    It's also needed on some exotic platforms where global variables are
    not set to 0 when a program starts.
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6657

6658
    We don't need to set variables refered to in my_long_options
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6659 6660
    as these are initialized by my_getopt.
*/
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6661

6662
static int mysql_init_variables(void)
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{
  /* Things reset to zero */
  opt_skip_slave_start= opt_reckless_slave = 0;
  mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0;
6667
  myisam_test_invalid_symlink= test_if_data_home_dir;
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6668
  opt_log= opt_slow_log= 0;
6669
  opt_bin_log= 0;
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6670
  opt_disable_networking= opt_skip_show_db=0;
6671
  opt_skip_name_resolve= 0;
6672
  opt_ignore_builtin_innodb= 0;
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6673 6674
  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 !
6675 6676
  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;
  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;
6686
  opt_using_transactions= 0;
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6687 6688
  abort_loop= select_thread_in_use= signal_thread_in_use= 0;
  ready_to_exit= shutdown_in_progress= grant_option= 0;
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6689
  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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6692
  specialflag= 0;
6693
  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;
6696
  prepared_stmt_count= 0;
6697
  mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS;
6698
  bzero((uchar*) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list));
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6699
  bzero((char *) &global_status_var, sizeof(global_status_var));
6700
  opt_large_pages= 0;
6701
  opt_super_large_pages= 0;
6702 6703 6704
#if defined(ENABLED_DEBUG_SYNC)
  opt_debug_sync_timeout= 0;
#endif /* defined(ENABLED_DEBUG_SYNC) */
6705
  key_map_full.set_all();
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6707 6708 6709 6710 6711
  /* Character sets */
  system_charset_info= &my_charset_utf8_general_ci;
  files_charset_info= &my_charset_utf8_general_ci;
  national_charset_info= &my_charset_utf8_general_ci;
  table_alias_charset= &my_charset_bin;
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  character_set_filesystem= &my_charset_bin;
6713

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  opt_specialflag= SPECIAL_ENGLISH;
  unix_sock= ip_sock= INVALID_SOCKET;
  mysql_home_ptr= mysql_home;
  pidfile_name_ptr= pidfile_name;
  log_error_file_ptr= log_error_file;
6719
  lc_messages_dir_ptr= lc_messages_dir;
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  protocol_version= PROTOCOL_VERSION;
  what_to_log= ~ (1L << (uint) COM_TIME);
6722
  refresh_version= 1L;	/* Increments on each reload */
6723
  global_query_id= thread_id= 1L;
6724
  my_atomic_rwlock_init(&global_query_id_lock);
6725
  my_atomic_rwlock_init(&thread_running_lock);
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  strmov(server_version, MYSQL_SERVER_VERSION);
  threads.empty();
  thread_cache.empty();
6729
  key_caches.empty();
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6730
  if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str,
6731
                                                default_key_cache_base.length)))
6732 6733 6734 6735
  {
    sql_print_error("Cannot allocate the keycache");
    return 1;
  }
6736 6737
  /* set key_cache_hash.default_value = dflt_key_cache */
  multi_keycache_init();
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6738 6739

  /* Set directory paths */
6740 6741 6742
  mysql_real_data_home_len=
    strmake(mysql_real_data_home, get_relative_path(MYSQL_DATADIR),
            sizeof(mysql_real_data_home)-1) - mysql_real_data_home;
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6743 6744
  /* Replication parameters */
  master_info_file= (char*) "master.info",
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6745
    relay_log_info_file= (char*) "relay-log.info";
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6746 6747 6748 6749 6750
  report_user= report_password = report_host= 0;	/* TO BE DELETED */
  opt_relay_logname= opt_relaylog_index_name= 0;

  /* Variables in libraries */
  charsets_dir= 0;
6751
  default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME;
6752
  default_collation_name= compiled_default_collation_name;
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6753
  character_set_filesystem_name= (char*) "binary";
6754
  lc_messages= (char*) "en_US";
6755
  lc_time_names_name= (char*) "en_US";
6756
  
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6757 6758 6759 6760 6761 6762
  /* 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);
6763 6764
#ifdef ENABLED_PROFILING
    have_profiling = SHOW_OPTION_YES;
6765
#else
6766
    have_profiling = SHOW_OPTION_NO;
6767
#endif
6768

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6769
#ifdef HAVE_OPENSSL
6770
  have_ssl=SHOW_OPTION_YES;
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6771
#else
6772
  have_ssl=SHOW_OPTION_NO;
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6773
#endif
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#ifdef HAVE_BROKEN_REALPATH
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  have_symlink=SHOW_OPTION_NO;
#else
  have_symlink=SHOW_OPTION_YES;
#endif
6779 6780 6781 6782 6783
#ifdef HAVE_DLOPEN
  have_dlopen=SHOW_OPTION_YES;
#else
  have_dlopen=SHOW_OPTION_NO;
#endif
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6784 6785 6786 6787 6788
#ifdef HAVE_QUERY_CACHE
  have_query_cache=SHOW_OPTION_YES;
#else
  have_query_cache=SHOW_OPTION_NO;
#endif
6789 6790 6791 6792 6793 6794 6795 6796 6797 6798
#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
6805
  have_compress= SHOW_OPTION_YES;
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6806
#else
6807
  have_compress= SHOW_OPTION_NO;
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6808 6809 6810 6811 6812 6813
#endif
#ifdef HAVE_LIBWRAP
  libwrapName= NullS;
#endif
#ifdef HAVE_OPENSSL
  des_key_file = 0;
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Konstantin Osipov committed
6814
#ifndef EMBEDDED_LIBRARY
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6815
  ssl_acceptor_fd= 0;
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Konstantin Osipov committed
6816 6817
#endif /* ! EMBEDDED_LIBRARY */
#endif /* HAVE_OPENSSL */
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6818 6819 6820 6821
#ifdef HAVE_SMEM
  shared_memory_base_name= default_shared_memory_base_name;
#endif

6822 6823
#if defined(__WIN__)
  /* Allow Win32 users to move MySQL anywhere */
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6824 6825
  {
    char prg_dev[LIBLEN];
6826 6827 6828 6829 6830 6831 6832 6833 6834 6835 6836
    char executing_path_name[LIBLEN];
    if (!test_if_hard_path(my_progname))
    {
      // we don't want to use GetModuleFileName inside of my_path since
      // my_path is a generic path dereferencing function and here we care
      // only about the executing binary.
      GetModuleFileName(NULL, executing_path_name, sizeof(executing_path_name));
      my_path(prg_dev, executing_path_name, NULL);
    }
    else
      my_path(prg_dev, my_progname, "mysql/bin");
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6837 6838 6839 6840 6841
    strcat(prg_dev,"/../");			// Remove 'bin' to get base dir
    cleanup_dirname(mysql_home,prg_dev);
  }
#else
  const char *tmpenv;
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6842
  if (!(tmpenv = getenv("MY_BASEDIR_VERSION")))
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6843
    tmpenv = DEFAULT_MYSQL_HOME;
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6844
  (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1);
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6845
#endif
6846
  return 0;
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6847 6848
}

6849 6850 6851 6852
my_bool
mysqld_get_one_option(int optid,
                      const struct my_option *opt __attribute__((unused)),
                      char *argument)
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6853
{
6854 6855
  switch(optid) {
  case '#':
6856
#ifndef DBUG_OFF
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6857
    DBUG_SET_INITIAL(argument ? argument : default_dbug_option);
6858 6859 6860 6861
#endif
    opt_endinfo=1;				/* unireg: memory allocation */
    break;
  case 'a':
6862
    global_system_variables.sql_mode= MODE_ANSI;
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6863
    global_system_variables.tx_isolation= ISO_SERIALIZABLE;
6864 6865 6866 6867
    break;
  case 'b':
    strmake(mysql_home,argument,sizeof(mysql_home)-1);
    break;
6868
  case 'C':
6869 6870
    if (default_collation_name == compiled_default_collation_name)
      default_collation_name= 0;
6871
    break;
6872
  case 'l':
6873
    WARN_DEPRECATED(NULL, 7, 0, "--log", "'--general-log'/'--general-log-file'");
6874 6875 6876 6877
    opt_log=1;
    break;
  case 'h':
    strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
6878
    /* Correct pointer set by my_getopt (for embedded library) */
6879
    mysql_real_data_home_ptr= mysql_real_data_home;
6880
    break;
6881
  case 'u':
6882
    if (!mysqld_user || !strcmp(mysqld_user, argument))
unknown's avatar
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6883
      mysqld_user= argument;
6884
    else
6885
      sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user);
6886
    break;
6887
  case 'L':
6888
    strmake(lc_messages_dir, argument, sizeof(lc_messages_dir)-1);
6889
    lc_messages_dir_ptr= lc_messages_dir;
6890
    break;
6891 6892
  case OPT_BINLOG_FORMAT:
    binlog_format_used= true;
6893
    break;
6894
#include <sslopt-case.h>
6895
#ifndef EMBEDDED_LIBRARY
6896 6897 6898
  case 'V':
    print_version();
    exit(0);
6899
#endif /*EMBEDDED_LIBRARY*/
6900 6901 6902 6903 6904 6905 6906 6907
  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;
6908 6909 6910 6911 6912 6913 6914 6915
  case 'T':
    test_flags= argument ? (uint) atoi(argument) : 0;
    opt_endinfo=1;
    break;
  case (int) OPT_ISAM_LOG:
    opt_myisam_log=1;
    break;
  case (int) OPT_BIN_LOG:
6916
    opt_bin_log= test(argument != disabled_my_option);
6917
    break;
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6918
#ifdef HAVE_REPLICATION
6919
  case (int)OPT_REPLICATE_IGNORE_DB:
6920
  {
6921
    rpl_filter->add_ignore_db(argument);
6922 6923 6924 6925
    break;
  }
  case (int)OPT_REPLICATE_DO_DB:
  {
6926
    rpl_filter->add_do_db(argument);
6927 6928 6929 6930 6931
    break;
  }
  case (int)OPT_REPLICATE_REWRITE_DB:
  {
    char* key = argument,*p, *val;
6932

6933
    if (!(p= strstr(argument, "->")))
6934
    {
6935 6936
      sql_print_error("Bad syntax in replicate-rewrite-db - missing '->'!\n");
      return 1;
6937
    }
6938
    val= p--;
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6939
    while (my_isspace(mysqld_charset, *p) && p > argument)
6940 6941
      *p-- = 0;
    if (p == argument)
6942
    {
6943 6944
      sql_print_error("Bad syntax in replicate-rewrite-db - empty FROM db!\n");
      return 1;
6945
    }
6946 6947
    *val= 0;
    val+= 2;
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6948
    while (*val && my_isspace(mysqld_charset, *val))
6949
      val++;
6950
    if (!*val)
6951
    {
6952 6953
      sql_print_error("Bad syntax in replicate-rewrite-db - empty TO db!\n");
      return 1;
6954 6955
    }

6956
    rpl_filter->add_db_rewrite(key, val);
6957 6958 6959
    break;
  }

6960
  case (int)OPT_BINLOG_IGNORE_DB:
6961
  {
6962
    binlog_filter->add_ignore_db(argument);
6963 6964
    break;
  }
6965
  case (int)OPT_BINLOG_DO_DB:
6966
  {
6967
    binlog_filter->add_do_db(argument);
6968 6969
    break;
  }
6970
  case (int)OPT_REPLICATE_DO_TABLE:
6971
  {
6972
    if (rpl_filter->add_do_table(argument))
6973
    {
6974 6975
      sql_print_error("Could not add do table rule '%s'!\n", argument);
      return 1;
6976
    }
6977 6978
    break;
  }
6979
  case (int)OPT_REPLICATE_WILD_DO_TABLE:
6980
  {
6981
    if (rpl_filter->add_wild_do_table(argument))
6982
    {
6983 6984
      sql_print_error("Could not add do table rule '%s'!\n", argument);
      return 1;
6985
    }
6986 6987
    break;
  }
6988
  case (int)OPT_REPLICATE_WILD_IGNORE_TABLE:
6989
  {
6990
    if (rpl_filter->add_wild_ignore_table(argument))
6991
    {
6992 6993
      sql_print_error("Could not add ignore table rule '%s'!\n", argument);
      return 1;
6994
    }
6995 6996
    break;
  }
6997
  case (int)OPT_REPLICATE_IGNORE_TABLE:
6998
  {
6999
    if (rpl_filter->add_ignore_table(argument))
7000
    {
7001 7002
      sql_print_error("Could not add ignore table rule '%s'!\n", argument);
      return 1;
7003
    }
7004 7005
    break;
  }
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7006
#endif /* HAVE_REPLICATION */
7007
  case (int) OPT_SLOW_QUERY_LOG:
7008
    WARN_DEPRECATED(NULL, 7, 0, "--log-slow-queries", "'--slow-query-log'/'--slow-query-log-file'");
7009
    opt_slow_log= 1;
7010
    break;
7011 7012
  case (int) OPT_SKIP_NEW:
    opt_specialflag|= SPECIAL_NO_NEW_FUNC;
7013
    delay_key_write_options= DELAY_KEY_WRITE_NONE;
7014
    myisam_concurrent_insert=0;
7015
    myisam_recover_options= HA_RECOVER_OFF;
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7016
    sp_automatic_privileges=0;
7017
    my_use_symdir=0;
7018
    ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE);
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7019
#ifdef HAVE_QUERY_CACHE
7020 7021 7022 7023 7024
    query_cache_size=0;
#endif
    break;
  case (int) OPT_SAFE:
    opt_specialflag|= SPECIAL_SAFE_MODE;
7025
    delay_key_write_options= DELAY_KEY_WRITE_NONE;
7026 7027
    myisam_recover_options= HA_RECOVER_DEFAULT;
    ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE);
7028 7029 7030
    break;
  case (int) OPT_SKIP_PRIOR:
    opt_specialflag|= SPECIAL_NO_PRIOR;
7031
    sql_print_warning("The --skip-thread-priority startup option is deprecated "
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7032 7033
                      "and will be removed in MySQL 7.0. This option has no effect "
                      "as the implied behavior is already the default.");
7034
    break;
7035 7036 7037 7038
  case (int) OPT_SKIP_HOST_CACHE:
    opt_specialflag|= SPECIAL_NO_HOST_CACHE;
    break;
  case (int) OPT_SKIP_RESOLVE:
7039
    opt_skip_name_resolve= 1;
7040 7041 7042 7043 7044 7045 7046 7047 7048 7049
    opt_specialflag|=SPECIAL_NO_RESOLVE;
    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_BIND_ADDRESS:
    {
7050 7051 7052 7053 7054 7055 7056
      struct addrinfo *res_lst, hints;    

      bzero(&hints, sizeof(struct addrinfo));
      hints.ai_socktype= SOCK_STREAM;
      hints.ai_protocol= IPPROTO_TCP;

      if (getaddrinfo(argument, NULL, &hints, &res_lst) != 0) 
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7057
      {
7058 7059
        sql_print_error("Can't start server: cannot resolve hostname!");
        return 1;
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7060
      }
7061 7062

      if (res_lst->ai_next)
7063
      {
7064
        sql_print_error("Can't start server: bind-address refers to multiple interfaces!");
7065
        return 1;
7066
      }
7067
      freeaddrinfo(res_lst);
7068 7069
    }
    break;
7070 7071 7072 7073
  case OPT_CONSOLE:
    if (opt_console)
      opt_error_log= 0;			// Force logs to stdout
    break;
7074 7075 7076 7077 7078 7079
  case OPT_BOOTSTRAP:
    opt_noacl=opt_bootstrap=1;
    break;
  case OPT_SERVER_ID:
    server_id_supplied = 1;
    break;
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7080
  case OPT_ONE_THREAD:
7081
    thread_handling= SCHEDULER_ONE_THREAD_PER_CONNECTION;
7082
    break;
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7083
  case OPT_LOWER_CASE_TABLE_NAMES:
7084
    lower_case_table_names_used= 1;
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7085
    break;
7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101
#if defined(ENABLED_DEBUG_SYNC)
  case OPT_DEBUG_SYNC_TIMEOUT:
    /*
      Debug Sync Facility. See debug_sync.cc.
      Default timeout for WAIT_FOR action.
      Default value is zero (facility disabled).
      If option is given without an argument, supply a non-zero value.
    */
    if (!argument)
    {
      /* purecov: begin tested */
      opt_debug_sync_timeout= DEBUG_SYNC_DEFAULT_WAIT_TIMEOUT;
      /* purecov: end */
    }
    break;
#endif /* defined(ENABLED_DEBUG_SYNC) */
7102 7103 7104 7105 7106 7107 7108 7109 7110 7111 7112 7113
  case OPT_ENGINE_CONDITION_PUSHDOWN:
    /*
      The last of --engine-condition-pushdown and --optimizer_switch on
      command line wins (see get_options().
    */
    if (global_system_variables.engine_condition_pushdown)
      global_system_variables.optimizer_switch|=
        OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN;
    else
      global_system_variables.optimizer_switch&=
        ~OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN;
    break;
7114 7115 7116 7117 7118 7119 7120 7121
  case OPT_LOG_ERROR:
    /*
      "No --log-error" == "write errors to stderr",
      "--log-error without argument" == "write errors to a file".
    */
    if (argument == NULL) /* no argument */
      log_error_file_ptr= const_cast<char*>("");
    break;
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7122
  }
7123 7124
  return 0;
}
7125

7126

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7127
/** Handle arguments for multiple key caches. */
7128

7129
C_MODE_START
7130

7131
static void*
7132
mysql_getopt_value(const char *keyname, uint key_length,
7133
		   const struct my_option *option, int *error)
7134
{
7135 7136
  if (error)
    *error= 0;
7137 7138
  switch (option->id) {
  case OPT_KEY_BUFFER_SIZE:
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7139
  case OPT_KEY_CACHE_BLOCK_SIZE:
7140 7141
  case OPT_KEY_CACHE_DIVISION_LIMIT:
  case OPT_KEY_CACHE_AGE_THRESHOLD:
7142
  {
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7143
    KEY_CACHE *key_cache;
7144
    if (!(key_cache= get_or_create_key_cache(keyname, key_length)))
7145 7146 7147 7148 7149
    {
      if (error)
        *error= EXIT_OUT_OF_MEMORY;
      return 0;
    }
7150 7151
    switch (option->id) {
    case OPT_KEY_BUFFER_SIZE:
7152
      return &key_cache->param_buff_size;
7153
    case OPT_KEY_CACHE_BLOCK_SIZE:
7154
      return &key_cache->param_block_size;
7155
    case OPT_KEY_CACHE_DIVISION_LIMIT:
7156
      return &key_cache->param_division_limit;
7157
    case OPT_KEY_CACHE_AGE_THRESHOLD:
7158
      return &key_cache->param_age_threshold;
7159
    }
7160 7161
  }
  }
7162
  return option->value;
7163 7164
}

7165
static void option_error_reporter(enum loglevel level, const char *format, ...)
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7166
{
7167
  va_list args;
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7168
  va_start(args, format);
7169 7170 7171 7172 7173 7174 7175

  /* Don't print warnings for --loose options during bootstrap */
  if (level == ERROR_LEVEL || !opt_bootstrap ||
      global_system_variables.log_warnings)
  {
    vprint_msg_to_log(level, format, args);
  }
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7176
  va_end(args);
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7177
}
7178

7179
C_MODE_END
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7180

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7181
/**
Marc Alff's avatar
Marc Alff committed
7182 7183 7184 7185 7186 7187
  Get server options from the command line,
  and perform related server initializations.
  @param [in, out] argc_ptr       command line options (count)
  @param [in, out] argv_ptr       command line options (values)
  @return 0 on success

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7188 7189 7190
  @todo
  - FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code?
*/
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7191
static int get_options(int *argc_ptr, char ***argv_ptr)
7192 7193 7194
{
  int ho_error;

7195
  my_getopt_register_get_addr(mysql_getopt_value);
7196
  my_getopt_error_reporter= option_error_reporter;
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7197

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7198 7199 7200 7201
  /* prepare all_options array */
  my_init_dynamic_array(&all_options, sizeof(my_option),
                        array_elements(my_long_options),
                        array_elements(my_long_options)/4);
7202 7203 7204
  for (my_option *opt= my_long_options;
       opt < my_long_options + array_elements(my_long_options) - 1;
       opt++)
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7205 7206 7207
    insert_dynamic(&all_options, (uchar*) opt);
  sys_var_add_options(&all_options, sys_var::PARSE_NORMAL);
  add_terminator(&all_options);
7208

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7209 7210 7211
  /* Skip unknown options so that they may be processed later by plugins */
  my_getopt_skip_unknown= TRUE;

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7212
  if ((ho_error= handle_options(argc_ptr, argv_ptr, (my_option*)(all_options.buffer),
7213
                                mysqld_get_one_option)))
7214
    return ho_error;
7215 7216 7217 7218

  if (!opt_help)
    delete_dynamic(&all_options);

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7219 7220 7221
  /* Add back the program name handle_options removes */
  (*argc_ptr)++;
  (*argv_ptr)--;
7222

7223 7224 7225 7226 7227 7228
  /*
    Options have been parsed. Now some of them need additional special
    handling, like custom value checking, checking of incompatibilites
    between options, setting of multiple variables, etc.
    Do them here.
  */
7229

7230 7231
  if ((opt_log_slow_admin_statements || opt_log_queries_not_using_indexes ||
       opt_log_slow_slave_statements) &&
7232
      !opt_slow_log)
7233
    sql_print_warning("options --log-slow-admin-statements, --log-queries-not-using-indexes and --log-slow-slave-statements have no effect if --log_slow_queries is not set");
7234

7235 7236 7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254
  if (log_error_file_ptr != disabled_my_option)
    opt_error_log= 1;
  else
    log_error_file_ptr= const_cast<char*>("");

  opt_init_connect.length=strlen(opt_init_connect.str);
  opt_init_slave.length=strlen(opt_init_slave.str);

  if (global_system_variables.low_priority_updates)
    thr_upgraded_concurrent_insert_lock= TL_WRITE_LOW_PRIORITY;

  if (ft_boolean_check_syntax_string((uchar*) ft_boolean_syntax))
  {
    sql_print_error("Invalid ft-boolean-syntax string: %s\n",
                    ft_boolean_syntax);
    return 1;
  }

  if (opt_disable_networking)
    mysqld_port= 0;
7255

7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 7278
  if (opt_skip_show_db)
    opt_specialflag|= SPECIAL_SKIP_SHOW_DB;

  if (myisam_flush)
    flush_time= 0;

#ifdef HAVE_REPLICATION
  if (opt_slave_skip_errors)
    init_slave_skip_errors(opt_slave_skip_errors);
#endif

  if (global_system_variables.max_join_size == HA_POS_ERROR)
    global_system_variables.option_bits|= OPTION_BIG_SELECTS;
  else
    global_system_variables.option_bits&= ~OPTION_BIG_SELECTS;

  if (global_system_variables.option_bits & OPTION_AUTOCOMMIT)
    global_system_variables.option_bits&= ~OPTION_NOT_AUTOCOMMIT;
  else
    global_system_variables.option_bits|= OPTION_NOT_AUTOCOMMIT;

  global_system_variables.sql_mode=
    expand_sql_mode(global_system_variables.sql_mode);
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7279
#if defined(HAVE_BROKEN_REALPATH)
7280 7281 7282 7283 7284 7285 7286 7287 7288 7289
  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
7290 7291 7292 7293 7294 7295
  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;
  }
7296
  /* Set global MyISAM variables from delay_key_write_options */
7297
  fix_delay_key_write(0, 0, OPT_GLOBAL);
7298

7299
#ifndef EMBEDDED_LIBRARY
7300 7301
  if (mysqld_chroot)
    set_root(mysqld_chroot);
7302
#else
7303
  thread_handling = SCHEDULER_NO_THREADS;
7304 7305
  max_allowed_packet= global_system_variables.max_allowed_packet;
  net_buffer_length= global_system_variables.net_buffer_length;
7306
#endif
7307 7308
  if (fix_paths())
    return 1;
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7309

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7310 7311 7312 7313
  /*
    Set some global variables from the global_system_variables
    In most cases the global variables will not be used
  */
7314
  my_disable_locking= myisam_single_user= test(opt_external_locking == 0);
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7315
  my_default_record_cache_size=global_system_variables.read_buff_size;
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7316

7317 7318
  global_system_variables.long_query_time= (ulonglong)
    (global_system_variables.long_query_time_double * 1e6);
7319

7320 7321
  if (opt_short_log_format)
    opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;
7322

7323
  if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE,
7324
                                  &global_date_format) ||
7325
      init_global_datetime_format(MYSQL_TIMESTAMP_TIME,
7326
                                  &global_time_format) ||
7327
      init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME,
7328
                                  &global_datetime_format))
7329
    return 1;
7330

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7331
#ifdef EMBEDDED_LIBRARY
7332
  one_thread_scheduler();
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7333
#else
7334
  if (thread_handling <= SCHEDULER_ONE_THREAD_PER_CONNECTION)
7335 7336 7337
    one_thread_per_connection_scheduler();
  else                  /* thread_handling == SCHEDULER_NO_THREADS) */
    one_thread_scheduler();
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7338
#endif
7339 7340 7341 7342 7343

  global_system_variables.engine_condition_pushdown=
    test(global_system_variables.optimizer_switch &
         OPTIMIZER_SWITCH_ENGINE_CONDITION_PUSHDOWN);

7344
  return 0;
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7345 7346 7347
}


7348 7349 7350 7351 7352 7353 7354 7355 7356 7357
/*
  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,
7358
                     MYSQL_SERVER_SUFFIX_STR, NullS);
7359 7360 7361 7362
#ifdef EMBEDDED_LIBRARY
  end= strmov(end, "-embedded");
#endif
#ifndef DBUG_OFF
7363
  if (!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug"))
7364 7365
    end= strmov(end, "-debug");
#endif
7366
  if (opt_log || opt_slow_log || opt_bin_log)
7367 7368 7369 7370
    strmov(end, "-log");                        // This may slow down system
}


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7371 7372 7373
static char *get_relative_path(const char *path)
{
  if (test_if_hard_path(path) &&
7374
      is_prefix(path,DEFAULT_MYSQL_HOME) &&
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7375 7376
      strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR))
  {
unknown's avatar
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7377
    path+=(uint) strlen(DEFAULT_MYSQL_HOME);
7378
    while (*path == FN_LIBCHAR || *path == FN_LIBCHAR2)
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7379 7380 7381 7382 7383 7384
      path++;
  }
  return (char*) path;
}


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7385
/**
7386 7387
  Fix filename and replace extension where 'dir' is relative to
  mysql_real_data_home.
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7388 7389
  @return
    1 if len(path) > FN_REFLEN
7390 7391 7392
*/

bool
7393
fn_format_relative_to_data_home(char * to, const char *name,
7394 7395 7396 7397 7398 7399 7400 7401 7402 7403
				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,
7404
		    MY_APPEND_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH);
7405 7406 7407
}


7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423 7424 7425 7426 7427
/**
  Test a file path to determine if the path is compatible with the secure file
  path restriction.
 
  @param path null terminated character string

  @return
    @retval TRUE The path is secure
    @retval FALSE The path isn't secure
*/

bool is_secure_file_path(char *path)
{
  char buff1[FN_REFLEN], buff2[FN_REFLEN];
  /*
    All paths are secure if opt_secure_file_path is 0
  */
  if (!opt_secure_file_priv)
    return TRUE;

Georgi Kodinov's avatar
Georgi Kodinov committed
7428 7429 7430
  if (strlen(path) >= FN_REFLEN)
    return FALSE;

7431 7432 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 7448 7449
  if (my_realpath(buff1, path, 0))
  {
    /*
      The supplied file path might have been a file and not a directory.
    */
    int length= (int)dirname_length(path);
    if (length >= FN_REFLEN)
      return FALSE;
    memcpy(buff2, path, length);
    buff2[length]= '\0';
    if (length == 0 || my_realpath(buff1, buff2, 0))
      return FALSE;
  }
  convert_dirname(buff2, buff1, NullS);
  if (strncmp(opt_secure_file_priv, buff2, strlen(opt_secure_file_priv)))
    return FALSE;
  return TRUE;
}

7450
static int fix_paths(void)
unknown's avatar
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7451
{
7452
  char buff[FN_REFLEN],*pos;
7453
  convert_dirname(mysql_home,mysql_home,NullS);
7454
  /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */
7455
  my_realpath(mysql_home,mysql_home,MYF(0));
7456 7457 7458 7459 7460 7461 7462
  /* Ensure that mysql_home ends in FN_LIBCHAR */
  pos=strend(mysql_home);
  if (pos[-1] != FN_LIBCHAR)
  {
    pos[0]= FN_LIBCHAR;
    pos[1]= 0;
  }
7463
  convert_dirname(lc_messages_dir, lc_messages_dir, NullS);
7464
  convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS);
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7465 7466
  (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);
7467
  (void) my_load_path(pidfile_name, pidfile_name_ptr, mysql_real_data_home);
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7468
  (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr :
7469
                                      get_relative_path(PLUGINDIR), mysql_home);
7470
  opt_plugin_dir_ptr= opt_plugin_dir;
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7471

7472 7473 7474 7475 7476 7477
  my_realpath(mysql_unpacked_real_data_home, mysql_real_data_home, MYF(0));
  mysql_unpacked_real_data_home_len= 
    (int) strlen(mysql_unpacked_real_data_home);
  if (mysql_unpacked_real_data_home[mysql_unpacked_real_data_home_len-1] == FN_LIBCHAR)
    --mysql_unpacked_real_data_home_len;

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7478
  char *sharedir=get_relative_path(SHAREDIR);
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7479
  if (test_if_hard_path(sharedir))
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7480
    strmake(buff,sharedir,sizeof(buff)-1);		/* purecov: tested */
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7481
  else
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7482
    strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS);
7483
  convert_dirname(buff,buff,NullS);
7484
  (void) my_load_path(lc_messages_dir, lc_messages_dir, buff);
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7485 7486

  /* If --character-sets-dir isn't given, use shared library dir */
7487 7488 7489
  if (charsets_dir)
    strmake(mysql_charsets_dir, charsets_dir, sizeof(mysql_charsets_dir)-1);
  else
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7490 7491
    strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff,
	     CHARSET_DIR, NullS);
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7492
  (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff);
7493
  convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS);
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7494
  charsets_dir=mysql_charsets_dir;
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7495

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7496
  if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir))
7497
    return 1;
7498 7499
  if (!opt_mysql_tmpdir)
    opt_mysql_tmpdir= mysql_tmpdir;
unknown's avatar
SCRUM  
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7500
#ifdef HAVE_REPLICATION
7501
  if (!slave_load_tmpdir)
7502
    slave_load_tmpdir= mysql_tmpdir;
7503
#endif /* HAVE_REPLICATION */
7504 7505 7506 7507 7508 7509
  /*
    Convert the secure-file-priv option to system format, allowing
    a quick strcmp to check if read or write is in an allowed dir
   */
  if (opt_secure_file_priv)
  {
7510 7511 7512 7513 7514 7515
    if (*opt_secure_file_priv == 0)
    {
      opt_secure_file_priv= 0;
    }
    else
    {
Georgi Kodinov's avatar
Georgi Kodinov committed
7516 7517
      if (strlen(opt_secure_file_priv) >= FN_REFLEN)
        opt_secure_file_priv[FN_REFLEN-1]= '\0';
7518
      if (my_realpath(buff, opt_secure_file_priv, 0))
7519 7520 7521 7522
      {
        sql_print_warning("Failed to normalize the argument for --secure-file-priv.");
        return 1;
      }
7523 7524
      char *secure_file_real_path= (char *)my_malloc(FN_REFLEN, MYF(MY_FAE));
      convert_dirname(secure_file_real_path, buff, NullS);
7525
      my_free(opt_secure_file_priv);
7526 7527
      opt_secure_file_priv= secure_file_real_path;
    }
7528
  }
7529
  
7530
  return 0;
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7531 7532
}

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7533 7534
/**
  Check if file system used for databases is case insensitive.
7535

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7536
  @param dir_name			Directory to test
7537

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7538
  @retval
7539
    -1  Don't know (Test failed)
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7540
  @retval
7541
    0   File system is case sensitive
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7542
  @retval
7543 7544 7545 7546 7547 7548 7549 7550 7551
    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;
7552
  DBUG_ENTER("test_if_case_insensitive");
7553 7554 7555 7556 7557

  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);
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7558 7559 7560
  mysql_file_delete(key_file_casetest, buff2, MYF(0));
  if ((file= mysql_file_create(key_file_casetest,
                               buff, 0666, O_RDWR, MYF(0))) < 0)
7561
  {
7562
    sql_print_warning("Can't create test file %s", buff);
7563
    DBUG_RETURN(-1);
7564
  }
Marc Alff's avatar
Marc Alff committed
7565 7566
  mysql_file_close(file, MYF(0));
  if (mysql_file_stat(key_file_casetest, buff2, &stat_info, MYF(0)))
7567
    result= 1;					// Can access file
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Marc Alff committed
7568
  mysql_file_delete(key_file_casetest, buff, MYF(MY_WME));
7569 7570
  DBUG_PRINT("exit", ("result: %d", result));
  DBUG_RETURN(result);
7571 7572 7573
}


7574 7575
#ifndef EMBEDDED_LIBRARY

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7576 7577 7578
/**
  Create file to store pid number.
*/
7579 7580 7581
static void create_pid_file()
{
  File file;
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  if ((file= mysql_file_create(key_file_pid, pidfile_name, 0664,
                               O_WRONLY | O_TRUNC, MYF(MY_WME))) >= 0)
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  {
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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 (!mysql_file_write(file, (uchar*) buff, (uint) (end-buff),
                          MYF(MY_WME | MY_NABP)))
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    {
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      mysql_file_close(file, MYF(0));
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      return;
    }
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    mysql_file_close(file, MYF(0));
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  }
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  sql_perror("Can't start server: can't create PID file");
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  exit(1);
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}
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#endif /* EMBEDDED_LIBRARY */
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/** Clear most status variables. */
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void refresh_status(THD *thd)
{
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  mysql_mutex_lock(&LOCK_status);
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  /* Add thread's status variabes to global status */
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  add_to_status(&global_status_var, &thd->status_var);
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  /* Reset thread's status variables */
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  bzero((uchar*) &thd->status_var, sizeof(thd->status_var));
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  /* Reset some global variables */
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  reset_status_vars();
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  /* Reset the counters of all key caches (default and named). */
  process_key_caches(reset_key_cache_counters);
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  flush_status_time= time((time_t*) 0);
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  mysql_mutex_unlock(&LOCK_status);
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  /*
    Set max_used_connections to the number of currently open
    connections.  Lock LOCK_thread_count out of LOCK_status to avoid
    deadlocks.  Status reset becomes not atomic, but status data is
    not exact anyway.
  */
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  mysql_mutex_lock(&LOCK_thread_count);
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  max_used_connections= thread_count-delayed_insert_threads;
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  mysql_mutex_unlock(&LOCK_thread_count);
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}


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

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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<Statement>;
template class I_List_iterator<Statement>;
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#endif
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#ifdef HAVE_PSI_INTERFACE
#ifdef HAVE_MMAP
PSI_mutex_key key_PAGE_lock, key_LOCK_sync, key_LOCK_active, key_LOCK_pool;
#endif /* HAVE_MMAP */

#ifdef HAVE_OPENSSL
PSI_mutex_key key_LOCK_des_key_file;
#endif /* HAVE_OPENSSL */

PSI_mutex_key key_BINLOG_LOCK_index, key_BINLOG_LOCK_prep_xids,
  key_delayed_insert_mutex, key_hash_filo_lock, key_LOCK_active_mi,
  key_LOCK_connection_count, key_LOCK_crypt, key_LOCK_delayed_create,
  key_LOCK_delayed_insert, key_LOCK_delayed_status, key_LOCK_error_log,
  key_LOCK_gdl, key_LOCK_global_read_lock, key_LOCK_global_system_variables,
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  key_LOCK_manager,
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  key_LOCK_prepared_stmt_count,
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  key_LOCK_rpl_status, key_LOCK_server_started, key_LOCK_status,
  key_LOCK_system_variables_hash, key_LOCK_table_share, key_LOCK_thd_data,
  key_LOCK_user_conn, key_LOCK_uuid_generator, key_LOG_LOCK_log,
  key_master_info_data_lock, key_master_info_run_lock,
  key_mutex_slave_reporting_capability_err_lock, key_relay_log_info_data_lock,
  key_relay_log_info_log_space_lock, key_relay_log_info_run_lock,
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  key_structure_guard_mutex, key_TABLE_SHARE_LOCK_ha_data,
  key_LOCK_error_messages, key_LOG_INFO_lock, key_LOCK_thread_count,
  key_PARTITION_LOCK_auto_inc;
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static PSI_mutex_info all_server_mutexes[]=
{
#ifdef HAVE_MMAP
  { &key_PAGE_lock, "PAGE::lock", 0},
  { &key_LOCK_sync, "TC_LOG_MMAP::LOCK_sync", 0},
  { &key_LOCK_active, "TC_LOG_MMAP::LOCK_active", 0},
  { &key_LOCK_pool, "TC_LOG_MMAP::LOCK_pool", 0},
#endif /* HAVE_MMAP */

#ifdef HAVE_OPENSSL
  { &key_LOCK_des_key_file, "LOCK_des_key_file", PSI_FLAG_GLOBAL},
#endif /* HAVE_OPENSSL */

  { &key_BINLOG_LOCK_index, "MYSQL_BIN_LOG::LOCK_index", 0},
  { &key_BINLOG_LOCK_prep_xids, "MYSQL_BIN_LOG::LOCK_prep_xids", 0},
  { &key_delayed_insert_mutex, "Delayed_insert::mutex", 0},
  { &key_hash_filo_lock, "hash_filo::lock", 0},
  { &key_LOCK_active_mi, "LOCK_active_mi", PSI_FLAG_GLOBAL},
  { &key_LOCK_connection_count, "LOCK_connection_count", PSI_FLAG_GLOBAL},
  { &key_LOCK_crypt, "LOCK_crypt", PSI_FLAG_GLOBAL},
  { &key_LOCK_delayed_create, "LOCK_delayed_create", PSI_FLAG_GLOBAL},
  { &key_LOCK_delayed_insert, "LOCK_delayed_insert", PSI_FLAG_GLOBAL},
  { &key_LOCK_delayed_status, "LOCK_delayed_status", PSI_FLAG_GLOBAL},
  { &key_LOCK_error_log, "LOCK_error_log", PSI_FLAG_GLOBAL},
  { &key_LOCK_gdl, "LOCK_gdl", PSI_FLAG_GLOBAL},
  { &key_LOCK_global_read_lock, "LOCK_global_read_lock", PSI_FLAG_GLOBAL},
  { &key_LOCK_global_system_variables, "LOCK_global_system_variables", PSI_FLAG_GLOBAL},
  { &key_LOCK_manager, "LOCK_manager", PSI_FLAG_GLOBAL},
  { &key_LOCK_prepared_stmt_count, "LOCK_prepared_stmt_count", PSI_FLAG_GLOBAL},
  { &key_LOCK_rpl_status, "LOCK_rpl_status", PSI_FLAG_GLOBAL},
  { &key_LOCK_server_started, "LOCK_server_started", PSI_FLAG_GLOBAL},
  { &key_LOCK_status, "LOCK_status", PSI_FLAG_GLOBAL},
  { &key_LOCK_system_variables_hash, "LOCK_system_variables_hash", PSI_FLAG_GLOBAL},
  { &key_LOCK_table_share, "LOCK_table_share", PSI_FLAG_GLOBAL},
  { &key_LOCK_thd_data, "THD::LOCK_thd_data", 0},
  { &key_LOCK_user_conn, "LOCK_user_conn", PSI_FLAG_GLOBAL},
  { &key_LOCK_uuid_generator, "LOCK_uuid_generator", PSI_FLAG_GLOBAL},
  { &key_LOG_LOCK_log, "LOG::LOCK_log", 0},
  { &key_master_info_data_lock, "Master_info::data_lock", 0},
  { &key_master_info_run_lock, "Master_info::run_lock", 0},
  { &key_mutex_slave_reporting_capability_err_lock, "Slave_reporting_capability::err_lock", 0},
  { &key_relay_log_info_data_lock, "Relay_log_info::data_lock", 0},
  { &key_relay_log_info_log_space_lock, "Relay_log_info::log_space_lock", 0},
  { &key_relay_log_info_run_lock, "Relay_log_info::run_lock", 0},
  { &key_structure_guard_mutex, "Query_cache::structure_guard_mutex", 0},
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  { &key_TABLE_SHARE_LOCK_ha_data, "TABLE_SHARE::LOCK_ha_data", 0},
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  { &key_LOCK_error_messages, "LOCK_error_messages", PSI_FLAG_GLOBAL},
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  { &key_LOG_INFO_lock, "LOG_INFO::lock", 0},
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  { &key_LOCK_thread_count, "LOCK_thread_count", PSI_FLAG_GLOBAL},
  { &key_PARTITION_LOCK_auto_inc, "HA_DATA_PARTITION::LOCK_auto_inc", 0}
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};

PSI_rwlock_key key_rwlock_LOCK_grant, key_rwlock_LOCK_logger,
  key_rwlock_LOCK_sys_init_connect, key_rwlock_LOCK_sys_init_slave,
  key_rwlock_LOCK_system_variables_hash, key_rwlock_query_cache_query_lock;

static PSI_rwlock_info all_server_rwlocks[]=
{
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#if defined (HAVE_OPENSSL) && !defined(HAVE_YASSL)
  { &key_rwlock_openssl, "CRYPTO_dynlock_value::lock", 0},
#endif
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  { &key_rwlock_LOCK_grant, "LOCK_grant", PSI_FLAG_GLOBAL},
  { &key_rwlock_LOCK_logger, "LOGGER::LOCK_logger", 0},
  { &key_rwlock_LOCK_sys_init_connect, "LOCK_sys_init_connect", PSI_FLAG_GLOBAL},
  { &key_rwlock_LOCK_sys_init_slave, "LOCK_sys_init_slave", PSI_FLAG_GLOBAL},
  { &key_rwlock_LOCK_system_variables_hash, "LOCK_system_variables_hash", PSI_FLAG_GLOBAL},
  { &key_rwlock_query_cache_query_lock, "Query_cache_query::lock", 0}
};

#ifdef HAVE_MMAP
PSI_cond_key key_PAGE_cond, key_COND_active, key_COND_pool;
#endif /* HAVE_MMAP */

PSI_cond_key key_BINLOG_COND_prep_xids, key_BINLOG_update_cond,
  key_COND_cache_status_changed, key_COND_global_read_lock, key_COND_manager,
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  key_COND_rpl_status, key_COND_server_started,
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  key_delayed_insert_cond, key_delayed_insert_cond_client,
  key_item_func_sleep_cond, key_master_info_data_cond,
  key_master_info_start_cond, key_master_info_stop_cond,
  key_relay_log_info_data_cond, key_relay_log_info_log_space_cond,
  key_relay_log_info_start_cond, key_relay_log_info_stop_cond,
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  key_TABLE_SHARE_cond, key_user_level_lock_cond,
  key_COND_thread_count, key_COND_thread_cache, key_COND_flush_thread_cache;
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static PSI_cond_info all_server_conds[]=
{
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#if (defined(_WIN32) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
  { &key_COND_handler_count, "COND_handler_count", PSI_FLAG_GLOBAL},
#endif /* _WIN32 || HAVE_SMEM && !EMBEDDED_LIBRARY */
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#ifdef HAVE_MMAP
  { &key_PAGE_cond, "PAGE::cond", 0},
  { &key_COND_active, "TC_LOG_MMAP::COND_active", 0},
  { &key_COND_pool, "TC_LOG_MMAP::COND_pool", 0},
#endif /* HAVE_MMAP */
  { &key_BINLOG_COND_prep_xids, "MYSQL_BIN_LOG::COND_prep_xids", 0},
  { &key_BINLOG_update_cond, "MYSQL_BIN_LOG::update_cond", 0},
  { &key_COND_cache_status_changed, "Query_cache::COND_cache_status_changed", 0},
  { &key_COND_global_read_lock, "COND_global_read_lock", PSI_FLAG_GLOBAL},
  { &key_COND_manager, "COND_manager", PSI_FLAG_GLOBAL},
  { &key_COND_rpl_status, "COND_rpl_status", PSI_FLAG_GLOBAL},
  { &key_COND_server_started, "COND_server_started", PSI_FLAG_GLOBAL},
  { &key_delayed_insert_cond, "Delayed_insert::cond", 0},
  { &key_delayed_insert_cond_client, "Delayed_insert::cond_client", 0},
  { &key_item_func_sleep_cond, "Item_func_sleep::cond", 0},
  { &key_master_info_data_cond, "Master_info::data_cond", 0},
  { &key_master_info_start_cond, "Master_info::start_cond", 0},
  { &key_master_info_stop_cond, "Master_info::stop_cond", 0},
  { &key_relay_log_info_data_cond, "Relay_log_info::data_cond", 0},
  { &key_relay_log_info_log_space_cond, "Relay_log_info::log_space_cond", 0},
  { &key_relay_log_info_start_cond, "Relay_log_info::start_cond", 0},
  { &key_relay_log_info_stop_cond, "Relay_log_info::stop_cond", 0},
  { &key_TABLE_SHARE_cond, "TABLE_SHARE::cond", 0},
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  { &key_user_level_lock_cond, "User_level_lock::cond", 0},
  { &key_COND_thread_count, "COND_thread_count", PSI_FLAG_GLOBAL},
  { &key_COND_thread_cache, "COND_thread_cache", PSI_FLAG_GLOBAL},
  { &key_COND_flush_thread_cache, "COND_flush_thread_cache", PSI_FLAG_GLOBAL}
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};

PSI_thread_key key_thread_bootstrap, key_thread_delayed_insert,
  key_thread_handle_manager, key_thread_main,
  key_thread_one_connection, key_thread_signal_hand;

static PSI_thread_info all_server_threads[]=
{
#if (defined(_WIN32) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
  { &key_thread_handle_con_namedpipes, "con_named_pipes", PSI_FLAG_GLOBAL},
#endif /* _WIN32 || HAVE_SMEM && !EMBEDDED_LIBRARY */

#if defined(HAVE_SMEM) && !defined(EMBEDDED_LIBRARY)
  { &key_thread_handle_con_sharedmem, "con_shared_mem", PSI_FLAG_GLOBAL},
#endif /* HAVE_SMEM && !EMBEDDED_LIBRARY */

#if (defined(_WIN32) || defined(HAVE_SMEM)) && !defined(EMBEDDED_LIBRARY)
  { &key_thread_handle_con_sockets, "con_sockets", PSI_FLAG_GLOBAL},
#endif /* _WIN32 || HAVE_SMEM && !EMBEDDED_LIBRARY */

#ifdef __WIN__
  { &key_thread_handle_shutdown, "shutdown", PSI_FLAG_GLOBAL},
#endif /* __WIN__ */

  { &key_thread_bootstrap, "bootstrap", PSI_FLAG_GLOBAL},
  { &key_thread_delayed_insert, "delayed_insert", 0},
  { &key_thread_handle_manager, "manager", PSI_FLAG_GLOBAL},
  { &key_thread_main, "main", PSI_FLAG_GLOBAL},
  { &key_thread_one_connection, "one_connection", 0},
  { &key_thread_signal_hand, "signal_handler", PSI_FLAG_GLOBAL}
};

#ifdef HAVE_MMAP
PSI_file_key key_file_map;
#endif /* HAVE_MMAP */

PSI_file_key key_file_binlog, key_file_binlog_index, key_file_casetest,
  key_file_dbopt, key_file_des_key_file, key_file_ERRMSG, key_select_to_file,
  key_file_fileparser, key_file_frm, key_file_global_ddl_log, key_file_load,
  key_file_loadfile, key_file_log_event_data, key_file_log_event_info,
  key_file_master_info, key_file_misc, key_file_MYSQL_LOG, key_file_partition,
  key_file_pid, key_file_relay_log_info, key_file_send_file, key_file_tclog,
  key_file_trg, key_file_trn, key_file_init;

static PSI_file_info all_server_files[]=
{
#ifdef HAVE_MMAP
  { &key_file_map, "map", 0},
#endif /* HAVE_MMAP */
  { &key_file_binlog, "binlog", 0},
  { &key_file_binlog_index, "binlog_index", 0},
  { &key_file_casetest, "casetest", 0},
  { &key_file_dbopt, "dbopt", 0},
  { &key_file_des_key_file, "des_key_file", 0},
  { &key_file_ERRMSG, "ERRMSG", 0},
  { &key_select_to_file, "select_to_file", 0},
  { &key_file_fileparser, "file_parser", 0},
  { &key_file_frm, "FRM", 0},
  { &key_file_global_ddl_log, "global_ddl_log", 0},
  { &key_file_load, "load", 0},
  { &key_file_loadfile, "LOAD_FILE", 0},
  { &key_file_log_event_data, "log_event_data", 0},
  { &key_file_log_event_info, "log_event_info", 0},
  { &key_file_master_info, "master_info", 0},
  { &key_file_misc, "misc", 0},
  { &key_file_MYSQL_LOG, "MYSQL_LOG", 0},
  { &key_file_partition, "partition", 0},
  { &key_file_pid, "pid", 0},
  { &key_file_relay_log_info, "relay_log_info", 0},
  { &key_file_send_file, "send_file", 0},
  { &key_file_tclog, "tclog", 0},
  { &key_file_trg, "trigger_name", 0},
  { &key_file_trn, "trigger", 0},
  { &key_file_init, "init", 0}
};

/**
  Initialise all the performance schema instrumentation points
  used by the server.
*/
void init_server_psi_keys(void)
{
  const char* category= "sql";
  int count;

  if (PSI_server == NULL)
    return;

  count= array_elements(all_server_mutexes);
  PSI_server->register_mutex(category, all_server_mutexes, count);

  count= array_elements(all_server_rwlocks);
  PSI_server->register_rwlock(category, all_server_rwlocks, count);

  count= array_elements(all_server_conds);
  PSI_server->register_cond(category, all_server_conds, count);

  count= array_elements(all_server_threads);
  PSI_server->register_thread(category, all_server_threads, count);

  count= array_elements(all_server_files);
  PSI_server->register_file(category, all_server_files, count);
}

#endif /* HAVE_PSI_INTERFACE */