mysqld.cc 259 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
#include "sql_db.h"       // my_database_names_free,
                          // my_database_names_init
#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 <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 "debug_sync.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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#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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/* stack traces are only supported on linux intel */
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#if defined(__linux__)  && defined(__i386__) && defined(USE_PSTACK)
#define	HAVE_STACK_TRACE_ON_SEGV
#include "../pstack/pstack.h"
char pstack_file_name[80];
#endif /* __linux__ */

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

#if defined(HAVE_DEC_3_2_THREADS) || defined(SIGNALS_DONT_BREAK_READ) || defined(HAVE_purify) && defined(__linux__)
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#define HAVE_CLOSE_SERVER_SOCK 1
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#endif
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extern "C" {					// Because of SCO 3.2V4.2
#include <errno.h>
#include <sys/stat.h>
#ifndef __GNU_LIBRARY__
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#define __GNU_LIBRARY__				// Skip warnings in getopt.h
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#endif
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#include <my_getopt.h>
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#ifdef HAVE_SYSENT_H
#include <sysent.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>				// For getpwent
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
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#include <my_net.h>
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#if !defined(__WIN__)
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#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)
#  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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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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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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uint delay_key_write_options;
uint protocol_version;
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uint lower_case_table_names;
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uint tc_heuristic_recover= 0;
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uint volatile thread_count;
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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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uint slave_exec_mode_options;
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ulonglong slave_type_conversions_options;
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ulong thread_cache_size=0, thread_pool_size= 0;
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ulong binlog_cache_size=0;
ulonglong  max_binlog_cache_size=0;
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ulong query_cache_size=0;
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ulong refresh_version;  /* Increments on each reload */
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query_id_t global_query_id;
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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 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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uint 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 LOCK_mysql_create_db, LOCK_open,
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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_refresh, 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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#ifdef HAVE_STACK_TRACE_ON_SEGV
static my_bool opt_do_pstack;
#endif /* HAVE_STACK_TRACE_ON_SEGV */
static my_bool opt_bootstrap, opt_myisam_log;
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static int cleanup_done;
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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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scheduler_functions thread_scheduler;

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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
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    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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    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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      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);
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    (void) unlink(mysqld_unix_port);
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    unix_sock= INVALID_SOCKET;
  }
#endif
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  end_thr_alarm(0);			 // Abort old alarms.
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  /*
    First signal all threads that it's time to die
    This will give the threads some time to gracefully abort their
    statements and inform their clients that the server is about to die.
  */
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  THD *tmp;
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  mysql_mutex_lock(&LOCK_thread_count); // For unlink from list
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  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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    thread_scheduler.post_kill_notification(tmp);
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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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    }
  }
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  mysql_mutex_unlock(&LOCK_thread_count); // For unlink from list
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  Events::deinit();
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  end_slave();

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  if (thread_count)
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    sleep(2);					// Give threads time to die
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  /*
    Force remaining threads to die by closing the connection to the client
    This will ensure that threads that are waiting for a command from the
    client on a blocking read call are aborted.
  */
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1116 1117 1118 1119

  for (;;)
  {
    DBUG_PRINT("quit",("Locking LOCK_thread_count"));
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    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
1128
    if (tmp->vio_ok())
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    {
1130
      if (global_system_variables.log_warnings)
1131
        sql_print_warning(ER_DEFAULT(ER_FORCING_CLOSE),my_progname,
1132
                          tmp->thread_id,
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                          (tmp->main_security_ctx.user ?
                           tmp->main_security_ctx.user : ""));
1135
      close_connection(tmp,0,0);
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    }
#endif
    DBUG_PRINT("quit",("Unlocking LOCK_thread_count"));
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    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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1143
  mysql_mutex_lock(&LOCK_thread_count);
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  while (thread_count)
  {
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    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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1149
  mysql_mutex_unlock(&LOCK_thread_count);
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1150

1151
  close_active_mi();
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  DBUG_PRINT("quit",("close_connections thread"));
  DBUG_VOID_RETURN;
}

1156

1157
static void close_server_sock()
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{
1159
#ifdef HAVE_CLOSE_SERVER_SOCK
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  DBUG_ENTER("close_server_sock");
1161 1162 1163
  my_socket tmp_sock;
  tmp_sock=ip_sock;
  if (tmp_sock != INVALID_SOCKET)
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  {
    ip_sock=INVALID_SOCKET;
1166
    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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  {
1172
    unix_sock=INVALID_SOCKET;
1173
    DBUG_PRINT("info",("calling shutdown on unix socket"));
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1174 1175
    (void) shutdown(tmp_sock, SHUT_RDWR);
    (void) unlink(mysqld_unix_port);
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  }
  DBUG_VOID_RETURN;
#endif
1179
}
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1181 1182
#endif /*EMBEDDED_LIBRARY*/

1183

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

1188
#if defined(SIGNALS_DONT_BREAK_READ) && !defined(EMBEDDED_LIBRARY)
1189 1190
  abort_loop=1;					// Break connection loops
  close_server_sock();				// Force accept to wake up
1191
#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()));
    }
1200 1201 1202 1203 1204 1205
    /*
      or:
      HANDLE hEvent=OpenEvent(0, FALSE, "MySqlShutdown");
      SetEvent(hEventShutdown);
      CloseHandle(hEvent);
    */
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  }
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#endif
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#elif defined(HAVE_PTHREAD_KILL)
1209
  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)
1214
  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
1219
  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))
1226
      sql_print_error("Can't create thread to kill server");
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  }
1228
#endif
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  DBUG_VOID_RETURN;
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}

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/**
  Force server down. Kill all connections and threads and exit.
1234

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  @param  sig_ptr       Signal number that caused kill_server to be called.
1236

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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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1243
#if !defined(__WIN__)
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static void *kill_server(void *sig_ptr)
1245
#define RETURN_FROM_KILL_SERVER return 0
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#else
static void __cdecl kill_server(int sig_ptr)
1248
#define RETURN_FROM_KILL_SERVER return
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#endif
{
  DBUG_ENTER("kill_server");
1252
#ifndef EMBEDDED_LIBRARY
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1253
  int sig=(int) (long) sig_ptr;			// This is passed a int
1254
  // 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;
1259
  }
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  kill_in_progress=TRUE;
  abort_loop=1;					// This should be set
1262
  if (sig != 0) // 0 is not a valid signal number
1263
    my_sigset(sig, SIG_IGN);                    /* purify inspected */
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  if (sig == MYSQL_KILL_SIGNAL || sig == 0)
1265
    sql_print_information(ER_DEFAULT(ER_NORMAL_SHUTDOWN),my_progname);
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  else
1267
    sql_print_error(ER_DEFAULT(ER_GOT_SIGNAL),my_progname,sig); /* purecov: inspected */
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#if defined(HAVE_SMEM) && defined(__WIN__)    
  /*    
   Send event to smem_event_connect_request for aborting    
   */    
  if (!SetEvent(smem_event_connect_request))    
  {      
	  DBUG_PRINT("error",
		("Got error: %ld from SetEvent of smem_event_connect_request",
		 GetLastError()));    
  }
#endif  
  
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  close_connections();
1282 1283
  if (sig != MYSQL_KILL_SIGNAL &&
      sig != 0)
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    unireg_abort(1);				/* purecov: inspected */
  else
1286
    unireg_end();
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1287

1288
  /* purecov: begin deadcode */
1289
  DBUG_LEAVE;                                   // Must match DBUG_ENTER()
1290
  my_thread_end();
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  pthread_exit(0);
  /* purecov: end */
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  RETURN_FROM_KILL_SERVER;                      // Avoid compiler warnings

#else /* EMBEDDED_LIBRARY*/

  DBUG_LEAVE;
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  RETURN_FROM_KILL_SERVER;
1300 1301

#endif /* EMBEDDED_LIBRARY */
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}


1305
#if defined(USE_ONE_SIGNAL_HAND)
1306
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;
1314
  /* purecov: end */
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}
#endif

1318

1319
extern "C" sig_handler print_signal_warning(int sig)
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{
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  if (global_system_variables.log_warnings)
1322
    sql_print_warning("Got signal %d from thread %ld", sig,my_thread_id());
1323
#ifdef SIGNAL_HANDLER_RESET_ON_DELIVERY
1324
  my_sigset(sig,print_signal_warning);		/* int. thread system calls */
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#endif
1326
#if !defined(__WIN__)
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  if (sig == SIGALRM)
    alarm(2);					/* reschedule alarm */
#endif
}

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#ifndef EMBEDDED_LIBRARY
1333

1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345
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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1349 1350 1351
    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.
*/
1356
void unireg_end(void)
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1357
{
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  clean_up(1);
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  my_thread_end();
1360
#if defined(SIGNALS_DONT_BREAK_READ)
1361 1362
  exit(0);
#else
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  pthread_exit(0);				// Exit is in main thread
1364
#endif
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}

1367

1368
extern "C" void unireg_abort(int exit_code)
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{
1370
  DBUG_ENTER("unireg_abort");
1371

1372 1373
  if (opt_help)
    usage();
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  if (exit_code)
    sql_print_error("Aborting\n");
1376
  clean_up(!opt_help && (exit_code || !opt_bootstrap)); /* purecov: inspected */
1377
  DBUG_PRINT("quit",("done with cleanup in unireg_abort"));
1378 1379 1380 1381 1382
  mysqld_exit(exit_code);
}

static void mysqld_exit(int exit_code)
{
1383 1384 1385 1386 1387
  /*
    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.
  */
1388
  wait_for_signal_thread_to_end();
1389
  mysql_audit_finalize();
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  clean_up_mutexes();
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  clean_up_error_log_mutex();
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  my_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
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  exit(exit_code); /* purecov: inspected */
}
1395

1396
#endif /* !EMBEDDED_LIBRARY */
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1398
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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1404
  stop_handle_manager();
1405 1406
  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();

1415
  injector::free_instance();
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  mysql_bin_log.cleanup();

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1418
#ifdef HAVE_REPLICATION
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  if (use_slave_mask)
    bitmap_free(&slave_error_mask);
1421
#endif
1422
  my_tz_free();
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  my_database_names_free();
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1424
#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 */
1433
  item_create_cleanup();
1434
  free_charsets();
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1435
  if (!opt_noacl)
1436
  {
1437
#ifdef HAVE_DLOPEN
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    udf_free();
1439
#endif
1440
  }
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  table_def_start_shutdown();
1442
  plugin_shutdown();
1443
  ha_end();
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  if (tc_log)
    tc_log->close();
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  delegates_destroy();
1447
  xid_cache_free();
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  table_def_free();
  mdl_destroy();
1450
  key_caches.delete_elements((void (*)(const char*, uchar*)) free_key_cache);
1451
  multi_keycache_free();
1452
  free_status_vars();
1453
  end_thr_alarm(1);			/* Free allocated memory */
1454
  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);
1458
  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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1461
#ifdef HAVE_REPLICATION
1462
  end_slave_list();
1463
#endif
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  delete binlog_filter;
  delete rpl_filter;
1466
  end_ssl();
1467
  vio_end();
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#ifdef USE_REGEX
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  my_regex_end();
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#endif
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#if defined(ENABLED_DEBUG_SYNC)
  /* End the debug sync facility. See debug_sync.cc. */
  debug_sync_end();
#endif /* defined(ENABLED_DEBUG_SYNC) */
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1476
#if !defined(EMBEDDED_LIBRARY)
1477
  if (!opt_bootstrap)
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    mysql_file_delete(key_file_pid, pidfile_name, MYF(0)); // This may not always exist
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#endif
1480
  if (print_message && my_default_lc_messages && server_start_time)
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    sql_print_information(ER_DEFAULT(ER_SHUTDOWN_COMPLETE),my_progname);
  cleanup_errmsgs();
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  thread_scheduler.end();
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1484
  finish_client_errs();
1485
  DBUG_PRINT("quit", ("Error messages freed"));
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  /* Tell main we are ready */
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  logger.cleanup_end();
1488
  my_atomic_rwlock_destroy(&global_query_id_lock);
1489
  my_atomic_rwlock_destroy(&thread_running_lock);
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1490
  mysql_mutex_lock(&LOCK_thread_count);
1491
  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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  mysql_cond_broadcast(&COND_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
1496
  sys_var_end();
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1497

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  /*
    The following lines may never be executed as the main thread may have
    killed us
  */
1502
  DBUG_PRINT("quit", ("done with cleanup"));
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} /* clean_up */


1506 1507
#ifndef EMBEDDED_LIBRARY

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/**
1509
  This is mainly needed when running with purify, but it's still nice to
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  know that all child threads have died when mysqld exits.
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*/
static void wait_for_signal_thread_to_end()
{
  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++)
  {
1521
    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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  mysql_mutex_destroy(&LOCK_mysql_create_db);
  mysql_mutex_destroy(&LOCK_lock_db);
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1532
  mysql_rwlock_destroy(&LOCK_grant);
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  mysql_mutex_destroy(&LOCK_open);
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1534
  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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  mysql_mutex_destroy(&LOCK_manager);
  mysql_mutex_destroy(&LOCK_crypt);
  mysql_mutex_destroy(&LOCK_user_conn);
  mysql_mutex_destroy(&LOCK_connection_count);
1543
  Events::destroy_mutexes();
1544
#ifdef HAVE_OPENSSL
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1545
  mysql_mutex_destroy(&LOCK_des_key_file);
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1546
#ifndef HAVE_YASSL
1547
  for (int i= 0; i < CRYPTO_num_locks(); ++i)
1548
    mysql_rwlock_destroy(&openssl_stdlocks[i].lock);
1549
  OPENSSL_free(openssl_stdlocks);
1550 1551
#endif
#endif
1552
#ifdef HAVE_REPLICATION
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  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_refresh);
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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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1570
  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;
1583
  if (!mysqld_port && !opt_disable_networking)
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  {					// Get port if not from commandline
1585
    mysqld_port= MYSQL_PORT;
1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597

    /*
      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 */
1601
#endif
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1602
    if ((env = getenv("MYSQL_TCP_PORT")))
1603
      mysqld_port= (uint) atoi(env);		/* purecov: inspected */
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  }
1605
  if (!mysqld_unix_port)
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  {
#ifdef __WIN__
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    mysqld_unix_port= (char*) MYSQL_NAMEDPIPE;
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#else
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    mysqld_unix_port= (char*) MYSQL_UNIX_ADDR;
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#endif
    if ((env = getenv("MYSQL_UNIX_PORT")))
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      mysqld_unix_port= env;			/* purecov: inspected */
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  }
}

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

1619
static struct passwd *check_user(const char *user)
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{
1621
#if !defined(__WIN__)
1622
  struct passwd *tmp_user_info;
1623
  uid_t user_id= geteuid();
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1625
  // Don't bother if we aren't superuser
1626
  if (user_id)
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  {
    if (user)
1629
    {
1630 1631 1632 1633
      /* 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) &&
1634
	  global_system_variables.log_warnings)
1635 1636
        sql_print_warning(
                    "One can only use the --user switch if running as root\n");
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      /* purecov: end */
1638
    }
1639
    return NULL;
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  }
1641
  if (!user)
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  {
    if (!opt_bootstrap)
    {
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      sql_print_error("Fatal error: Please read \"Security\" section of the manual to find out how to run mysqld as root!\n");
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      unireg_abort(1);
    }
1648
    return NULL;
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  }
1650
  /* purecov: begin tested */
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1651
  if (!strcmp(user,"root"))
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    return NULL;                        // Avoid problem with dynamic libraries
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1654
  if (!(tmp_user_info= getpwnam(user)))
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1655
  {
1656
    // 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
1660
      goto err;
1661
    if (!(tmp_user_info= getpwuid(atoi(user))))
1662
      goto err;
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  }
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  return tmp_user_info;
  /* purecov: end */
1666 1667

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);
1669
  unireg_abort(1);
1670 1671 1672 1673 1674 1675 1676 1677 1678

#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;
1681 1682
}

1683
static void set_user(const char *user, struct passwd *user_info_arg)
1684
{
1685
  /* purecov: begin tested */
1686
#if !defined(__WIN__)
1687
  DBUG_ASSERT(user_info_arg != 0);
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#ifdef HAVE_INITGROUPS
1689 1690 1691 1692 1693 1694 1695
  /*
    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;
1696
  initgroups((char*) user, user_info_arg->pw_gid);
1697
  calling_initgroups= FALSE;
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#endif
1699
  if (setgid(user_info_arg->pw_gid) == -1)
1700 1701 1702
  {
    sql_perror("setgid");
    unireg_abort(1);
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1703
  }
1704
  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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1714
static void set_effective_user(struct passwd *user_info_arg)
1715
{
1716
#if !defined(__WIN__)
1717 1718
  DBUG_ASSERT(user_info_arg != 0);
  if (setregid((gid_t)-1, user_info_arg->pw_gid) == -1)
1719
  {
1720
    sql_perror("setregid");
1721
    unireg_abort(1);
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1722
  }
1723
  if (setreuid((uid_t)-1, user_info_arg->pw_uid) == -1)
1724
  {
1725
    sql_perror("setreuid");
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    unireg_abort(1);
  }
#endif
}


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/** Change root user if started with @c --chroot . */
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static void set_root(const char *path)
{
1735
#if !defined(__WIN__)
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  if (chroot(path) == -1)
  {
    sql_perror("chroot");
    unireg_abort(1);
  }
1741
  my_setwd("/", MYF(0));
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#endif
}

1745

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static void network_init(void)
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{
#ifdef HAVE_SYS_UN_H
  struct sockaddr_un	UNIXaddr;
#endif
1751
  int	arg;
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  int   ret;
  uint  waited;
  uint  this_wait;
  uint  retry;
1756
  char port_buf[NI_MAXSERV];
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1757
  DBUG_ENTER("network_init");
1758
  LINT_INIT(ret);
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1759

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  if (thread_scheduler.init())
    unireg_abort(1);			/* purecov: inspected */

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  set_ports();

1765
  if (mysqld_port != 0 && !opt_disable_networking && !opt_bootstrap)
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  {
1767 1768 1769
    struct addrinfo *ai, *a;
    struct addrinfo hints;
    int error;
1770
    DBUG_PRINT("general",("IP Socket is %d",mysqld_port));
1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781

    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));
1782
      sql_perror(ER_DEFAULT(ER_IPSOCK_ERROR));  /* purecov: tested */
1783 1784 1785 1786 1787 1788 1789 1790 1791 1792
      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));
1796
      sql_perror(ER_DEFAULT(ER_IPSOCK_ERROR));  /* purecov: tested */
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      unireg_abort(1);				/* purecov: tested */
    }
1799 1800 1801 1802 1803 1804

#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.
    */
1805
    arg= 1;
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    (void) setsockopt(ip_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,sizeof(arg));
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#endif /* __WIN__ */
1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825

#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
1826 1827 1828 1829 1830 1831 1832 1833 1834 1835
    /*
      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)
    {
1836
      if (((ret= bind(ip_sock, a->ai_addr, a->ai_addrlen)) >= 0 ) ||
1837
          (socket_errno != SOCKET_EADDRINUSE) ||
1838 1839 1840 1841 1842 1843
          (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);
    }
1844
    freeaddrinfo(ai);
1845
    if (ret < 0)
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1846 1847
    {
      DBUG_PRINT("error",("Got error: %d from bind",socket_errno));
1848
      sql_perror("Can't start server: Bind on TCP/IP port");
1849
      sql_print_error("Do you already have another mysqld server running on port: %d ?",mysqld_port);
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      unireg_abort(1);
    }
1852
    if (listen(ip_sock,(int) back_log) < 0)
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    {
1854
      sql_perror("Can't start server: listen() on TCP/IP port");
1855
      sql_print_error("listen() on TCP/IP failed with error %d",
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1856
		      socket_errno);
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      unireg_abort(1);
    }
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1859
  }
1860

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1861
#ifdef _WIN32
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1862
  /* create named pipe */
1863
  if (Service.IsNT() && mysqld_unix_port[0] && !opt_bootstrap &&
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      opt_enable_named_pipe)
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  {
1866
    strxnmov(pipe_name, sizeof(pipe_name)-1, "\\\\.\\pipe\\",
1867
	     mysqld_unix_port, NullS);
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    bzero((char*) &saPipeSecurity, sizeof(saPipeSecurity));
    bzero((char*) &sdPipeDescriptor, sizeof(sdPipeDescriptor));
1870
    if (!InitializeSecurityDescriptor(&sdPipeDescriptor,
1871
				      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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1881
    saPipeSecurity.nLength = sizeof(SECURITY_ATTRIBUTES);
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    saPipeSecurity.lpSecurityDescriptor = &sdPipeDescriptor;
    saPipeSecurity.bInheritHandle = FALSE;
1884
    if ((hPipe= CreateNamedPipe(pipe_name,
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				PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED,
1886 1887 1888 1889 1890 1891 1892 1893
				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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1894 1895 1896 1897 1898 1899 1900
      {
	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 );
1901
	sql_perror((char *)lpMsgBuf);
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1902
	LocalFree(lpMsgBuf);
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	unireg_abort(1);
      }
  }
#endif

1908
#if defined(HAVE_SYS_UN_H)
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  /*
  ** Create the UNIX socket
  */
1912
  if (mysqld_unix_port[0] && !opt_bootstrap)
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1913
  {
1914
    DBUG_PRINT("general",("UNIX Socket is %s",mysqld_unix_port));
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1915

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    if (strlen(mysqld_unix_port) > (sizeof(UNIXaddr.sun_path) - 1))
    {
1918
      sql_print_error("The socket file path is too long (> %u): %s",
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                      (uint) sizeof(UNIXaddr.sun_path) - 1, mysqld_unix_port);
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      unireg_abort(1);
    }
1922
    if ((unix_sock= socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
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1923 1924 1925 1926 1927 1928
    {
      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;
1929 1930
    strmov(UNIXaddr.sun_path, mysqld_unix_port);
    (void) unlink(mysqld_unix_port);
1931
    arg= 1;
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    (void) setsockopt(unix_sock,SOL_SOCKET,SO_REUSEADDR,(char*)&arg,
		      sizeof(arg));
    umask(0);
    if (bind(unix_sock, my_reinterpret_cast(struct sockaddr *) (&UNIXaddr),
	     sizeof(UNIXaddr)) < 0)
    {
      sql_perror("Can't start server : Bind on unix socket"); /* purecov: tested */
1939
      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)
1944
    (void) chmod(mysqld_unix_port,S_IFSOCK);	/* Fix solaris 2.6 bug */
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1945
#endif
1946
    if (listen(unix_sock,(int) back_log) < 0)
1947
      sql_print_warning("listen() on Unix socket failed with error %d",
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		      socket_errno);
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1949 1950 1951 1952 1953 1954
  }
#endif
  DBUG_PRINT("info",("server started"));
  DBUG_VOID_RETURN;
}

1955
#endif /*!EMBEDDED_LIBRARY*/
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1956

1957

1958
#ifndef EMBEDDED_LIBRARY
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/**
  Close a connection.
1961

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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
1965

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  @note
1967 1968
    For the connection that is doing shutdown, this is called twice
*/
1969
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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    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;
}

2041

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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)
2338
{
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#ifndef EMBEDDED_LIBRARY
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  // Save vm id of this process
  if (!opt_bootstrap)
    create_pid_file();
2343
#endif /* EMBEDDED_LIBRARY */
2344
}
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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
2354
#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)
2367
{
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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
  */
2377
  if (segfaulted)
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  {
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    fprintf(stderr, "Fatal " SIGNAL_FMT " while backtracing\n", sig);
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    exit(1);
  }
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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 +
                     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;

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  if (!(test_flags & TEST_NO_STACKTRACE))
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  {
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    fprintf(stderr, "thd: 0x%lx\n",(long) thd);
    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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}

2520
#if !defined(__WIN__)
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#ifndef SA_RESETHAND
#define SA_RESETHAND 0
#endif
#ifndef SA_NODEFER
#define SA_NODEFER 0
#endif
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#ifndef EMBEDDED_LIBRARY

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

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

2544
#ifdef HAVE_STACKTRACE
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    my_init_stacktrace();
2546
#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);
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#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 */
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pthread_handler_t signal_hand(void *arg __attribute__((unused)))
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{
  sigset_t set;
  int sig;
  my_thread_init();				// Init new thread
  DBUG_ENTER("signal_hand");
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  signal_thread_in_use= 1;

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  /*
    Setup alarm handler
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    This should actually be '+ max_number_of_slaves' instead of +10,
    but the +10 should be quite safe.
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  */
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  init_thr_alarm(thread_scheduler.max_threads +
2660
		 global_system_variables.max_insert_delayed_threads + 10);
2661
  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
2671
#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) */
2679
  if (!opt_bootstrap)
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    create_pid_file();

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#ifdef HAVE_STACK_TRACE_ON_SEGV
  if (opt_do_pstack)
  {
    sprintf(pstack_file_name,"mysqld-%lu-%%d-%%d.backtrace", (ulong)getpid());
    pstack_install_segv_action(pstack_file_name);
  }
#endif /* HAVE_STACK_TRACE_ON_SEGV */
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  /*
    signal to start_signal_handler that we are ready
    This works by waiting for start_signal_handler to free mutex,
    after which we signal it that we are ready.
    At this pointer there is no other threads running, so there
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2695
    should not be any other mysql_cond_signal() calls.
2696
  */
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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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2701
  (void) pthread_sigmask(SIG_BLOCK,&set,NULL);
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  for (;;)
  {
    int error;					// Used when debugging
    if (shutdown_in_progress && !abort_loop)
    {
2707
      sig= SIGTERM;
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      error=0;
    }
    else
      while ((error=my_sigwait(&set,&sig)) == EINTR) ;
    if (cleanup_done)
2713
    {
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      DBUG_PRINT("quit",("signal_handler: calling my_thread_end()"));
2715
      my_thread_end();
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      signal_thread_in_use= 0;
2717
      DBUG_LEAVE;                               // Must match DBUG_ENTER()
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      pthread_exit(0);				// Safety
2719
      return 0;                                 // Avoid compiler warnings
2720
    }
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    switch (sig) {
    case SIGTERM:
    case SIGQUIT:
    case SIGKILL:
#ifdef EXTRA_DEBUG
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      sql_print_information("Got signal %d to shutdown mysqld",sig);
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#endif
2728
      /* switch to the old log message processing */
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      logger.set_handlers(LOG_FILE, opt_slow_log ? LOG_FILE:LOG_NONE,
                          opt_log ? LOG_FILE:LOG_NONE);
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      DBUG_PRINT("info",("Got signal: %d  abort_loop: %d",sig,abort_loop));
      if (!abort_loop)
      {
	abort_loop=1;				// mark abort for threads
#ifdef USE_ONE_SIGNAL_HAND
	pthread_t tmp;
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        if (mysql_thread_create(0, /* Not instrumented */
                                &tmp, &connection_attrib, kill_server_thread,
                                (void*) &sig))
2740
	  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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Merge  
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2750
	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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      }
2757
      /* 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
2778
      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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2789
#endif /*!EMBEDDED_LIBRARY*/
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#endif	/* __WIN__*/


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/**
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2794
  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);
2799

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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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2807
  /*
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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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2826
  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 */
2837
  DBUG_EXECUTE_IF("simulate_out_of_memory", DBUG_VOID_RETURN;);
2838

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2839
  if (!thd || MyFlags & ME_NOREFRESH)
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    sql_print_error("%s: %s",my_progname,str); /* purecov: inspected */
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2841
  DBUG_VOID_RETURN;
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}

2844

2845
#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));
}


2855
void my_str_free_mysqld(void *ptr)
2856
{
2857
  my_free(ptr);
2858
}
2859
#endif /* EMBEDDED_LIBRARY */
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#ifdef __WIN__

2864
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)
2873
#endif /* EMBEDDED_LIBRARY */
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     kill_server(MYSQL_KILL_SIGNAL);
  return 0;
}
#endif

2879
const char *load_default_groups[]= {
2880
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
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"mysql_cluster",
#endif
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"mysqld","server", MYSQL_BASE_VERSION, 0, 0};

2885
#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.
2893

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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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2896

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  @retval
2898
    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,
2904
                                        DATE_TIME_FORMAT *format)
2905
{
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  /*
    Get command line option
    format->format.str is already set by my_getopt
  */
  format->format.length= strlen(format->format.str);
2911

2912
  if (parse_date_time_format(format_type, format))
2913
  {
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    fprintf(stderr, "Wrong date/time format specifier: %s\n",
            format->format.str);
    return true;
2917
  }
2918
  return false;
2919 2920
}

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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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  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;
   int max_desired_page_size;
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   int max_page_size;
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   if (opt_super_large_pages)
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     max_page_size= SUPER_LARGE_PAGESIZE;
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   else
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     max_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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3279

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3280 3281
  /* connections and databases needs lots of files */
  {
3282
    uint files, wanted_files, max_open_files;
3283

3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298
    /* 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);
3299 3300

    if (files < wanted_files)
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    {
3302 3303
      if (!open_files_limit)
      {
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        /*
          If we have requested too much file handles than we bring
          max_connections in supported bounds.
        */
        max_connections= (ulong) min(files-10-TABLE_OPEN_CACHE_MIN*2,
                                     max_connections);
        /*
          Decrease table_cache_size according to max_connections, but
          not below TABLE_OPEN_CACHE_MIN.  Outer min() ensures that we
          never increase table_cache_size automatically (that could
          happen if max_connections is decreased above).
        */
        table_cache_size= (ulong) min(max((files-10-max_connections)/2,
                                          TABLE_OPEN_CACHE_MIN),
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                                      table_cache_size);
3319 3320 3321
	DBUG_PRINT("warning",
		   ("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
		    files, max_connections, table_cache_size));
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	if (global_system_variables.log_warnings)
3323
	  sql_print_warning("Changed limits: max_open_files: %u  max_connections: %ld  table_cache: %ld",
3324 3325
			files, max_connections, table_cache_size);
      }
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      else if (global_system_variables.log_warnings)
3327
	sql_print_warning("Could not increase number of max_open_files to more than %u (request: %u)", files, wanted_files);
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    }
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    open_files_limit= files;
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  }
  unireg_init(opt_specialflag); /* Set up extern variabels */
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  if (!(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;
3339 3340
  if (init_errmessage())	/* Read error messages from file */
    return 1;
3341
  init_client_errs();
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3342
  lex_init();
3343 3344
  if (item_create_init())
    return 1;
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  item_init();
#ifdef USE_REGEX
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  my_regex_init(&my_charset_latin1);
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#endif
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  /*
    Process a comma-separated character set list and choose
    the first available character set. This is mostly for
    test purposes, to be able to start "mysqld" even if
    the requested character set is not available (see bug#18743).
  */
  for (;;)
  {
    char *next_character_set_name= strchr(default_character_set_name, ',');
    if (next_character_set_name)
      *next_character_set_name++= '\0';
    if (!(default_charset_info=
          get_charset_by_csname(default_character_set_name,
                                MY_CS_PRIMARY, MYF(MY_WME))))
    {
      if (next_character_set_name)
      {
        default_character_set_name= next_character_set_name;
        default_collation_name= 0;          // Ignore collation
      }
      else
        return 1;                           // Eof of the list
    }
    else
      break;
  }

3376 3377
  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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3380 3381
    if (!default_collation)
    {
3382
      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))
3386
    {
3387
      sql_print_error(ER_DEFAULT(ER_COLLATION_CHARSET_MISMATCH),
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		      default_collation_name,
		      default_charset_info->csname);
      return 1;
    }
    default_charset_info= default_collation;
  }
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  /* Set collactions that depends on the default collation */
  global_system_variables.collation_server=	 default_charset_info;
  global_system_variables.collation_database=	 default_charset_info;
  global_system_variables.collation_connection=  default_charset_info;
3398
  global_system_variables.character_set_results= default_charset_info;
3399
  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;

3406 3407 3408
  if (!(my_default_lc_time_names=
        my_locale_by_name(lc_time_names_name)))
  {
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3409
    sql_print_error("Unknown locale: '%s'", lc_time_names_name);
3410 3411 3412
    return 1;
  }
  global_system_variables.lc_time_names= my_default_lc_time_names;
3413

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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. "
3419
                      "To enable logging to files use the --log-output option.");
3420 3421 3422 3423

  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 "
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3424
                      "--log-slow-queries option, log tables are used. "
3425
                      "To enable logging to files use the --log-output=file option.");
3426

3427 3428 3429
#define FIX_LOG_VAR(VAR, ALT)                                   \
  if (!VAR || !*VAR)                                            \
  {                                                             \
3430
    my_free(VAR); /* it could be an allocated empty string "" */ \
3431 3432
    VAR= my_strdup(ALT, MYF(0));                                \
  }
3433

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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"));
3438

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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) */

3445
#if (ENABLE_TEMP_POOL)
3446
  if (use_temp_pool && bitmap_init(&temp_pool,0,1024,1))
3447
    return 1;
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#else
  use_temp_pool= 0;
#endif

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3452
  if (my_database_names_init())
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3453 3454
    return 1;

3455 3456 3457 3458 3459 3460
  /*
    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));
3461 3462
  lower_case_file_system= test_if_case_insensitive(mysql_real_data_home);
  if (!lower_case_table_names && lower_case_file_system == 1)
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  {
    if (lower_case_table_names_used)
    {
      if (global_system_variables.log_warnings)
	sql_print_warning("\
You have forced lower_case_table_names to 0 through a command-line \
option, even though your file system '%s' is case insensitive.  This means \
that you can corrupt a MyISAM table by accessing it with different cases. \
You should consider changing lower_case_table_names to 1 or 2",
			mysql_real_data_home);
    }
    else
    {
      if (global_system_variables.log_warnings)
	sql_print_warning("Setting lower_case_table_names=2 because file system for %s is case insensitive", mysql_real_data_home);
      lower_case_table_names= 2;
    }
  }
  else if (lower_case_table_names == 2 &&
           !(lower_case_file_system=
             (test_if_case_insensitive(mysql_real_data_home) == 1)))
  {
    if (global_system_variables.log_warnings)
      sql_print_warning("lower_case_table_names was set to 2, even though your "
                        "the file system '%s' is case sensitive.  Now setting "
                        "lower_case_table_names to 0 to avoid future problems.",
			mysql_real_data_home);
    lower_case_table_names= 0;
  }
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  else
  {
    lower_case_file_system=
      (test_if_case_insensitive(mysql_real_data_home) == 1);
  }
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  /* Reset table_alias_charset, now that lower_case_table_names is set. */
  table_alias_charset= (lower_case_table_names ?
			files_charset_info :
			&my_charset_bin);

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3503 3504
  return 0;
}
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3505

3506 3507

static int init_thread_environment()
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3508
{
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  mysql_mutex_init(key_LOCK_mysql_create_db,
                   &LOCK_mysql_create_db, MY_MUTEX_INIT_SLOW);
  mysql_mutex_init(key_LOCK_lock_db, &LOCK_lock_db, MY_MUTEX_INIT_SLOW);
  mysql_mutex_init(key_LOCK_open, &LOCK_open, MY_MUTEX_INIT_FAST);
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3513
  mysql_mutex_init(key_LOCK_thread_count, &LOCK_thread_count, MY_MUTEX_INIT_FAST);
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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
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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_refresh, &COND_refresh, NULL);
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3560
  mysql_cond_init(key_COND_global_read_lock, &COND_global_read_lock, NULL);
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3561 3562
  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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3563
  mysql_cond_init(key_COND_manager, &COND_manager, NULL);
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3564
#ifdef HAVE_REPLICATION
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3565 3566
  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);
3567
#endif
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3568 3569 3570
  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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3571
  sp_cache_init();
3572
#ifdef HAVE_EVENT_SCHEDULER
3573
  Events::init_mutexes();
3574
#endif
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3575 3576 3577 3578 3579
  /* 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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3580

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3581 3582 3583 3584 3585 3586 3587 3588 3589
  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;
}

3590

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3591
#if defined(HAVE_OPENSSL) && !defined(HAVE_YASSL)
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static unsigned long openssl_id_function()
{ 
  return (unsigned long) pthread_self();
} 


static openssl_lock_t *openssl_dynlock_create(const char *file, int line)
{ 
  openssl_lock_t *lock= new openssl_lock_t;
3601
  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)
{
3609
  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";
3635
    err= mysql_rwlock_rdlock(&lock->lock);
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    break;
  case CRYPTO_LOCK|CRYPTO_WRITE:
    what = "write lock";
3639
    err= mysql_rwlock_wrlock(&lock->lock);
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    break;
  case CRYPTO_UNLOCK|CRYPTO_READ:
  case CRYPTO_UNLOCK|CRYPTO_WRITE:
    what = "unlock";
3644
    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) 
  {
3653
    sql_print_error("Fatal: can't %s OpenSSL lock", what);
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    abort();
  }
}
#endif /* HAVE_OPENSSL */


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3660 3661
static void init_ssl()
{
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3662
#ifdef HAVE_OPENSSL
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3663
#ifndef EMBEDDED_LIBRARY
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  if (opt_use_ssl)
  {
3666 3667
    enum enum_ssl_init_error error= SSL_INITERR_NOERROR;

3668 3669 3670
    /* 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,
3671
					  opt_ssl_cipher, &error);
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3672
    DBUG_PRINT("info",("ssl_acceptor_fd: 0x%lx", (long) ssl_acceptor_fd));
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3673
    if (!ssl_acceptor_fd)
3674
    {
3675
      sql_print_warning("Failed to setup SSL");
3676
      sql_print_warning("SSL error: %s", sslGetErrString(error));
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      opt_use_ssl = 0;
3678
      have_ssl= SHOW_OPTION_DISABLED;
3679 3680 3681 3682
    }
  }
  else
  {
3683
    have_ssl= SHOW_OPTION_DISABLED;
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3684
  }
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#else
  have_ssl= SHOW_OPTION_DISABLED;
#endif /* ! EMBEDDED_LIBRARY */
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  if (des_key_file)
    load_des_key_file(des_key_file);
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3690
#endif /* HAVE_OPENSSL */
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3691
}
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3693

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static void end_ssl()
{
#ifdef HAVE_OPENSSL
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Konstantin Osipov committed
3697
#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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3703
#endif /* ! EMBEDDED_LIBRARY */
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#endif /* HAVE_OPENSSL */
}


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3708 3709
static int init_server_components()
{
3710
  FILE *reopen;
3711
  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
  */
3716 3717
  mdl_init();
  if (table_def_init() | hostname_cache_init())
3718
    unireg_abort(1);
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3719

3720
  query_cache_set_min_res_unit(query_cache_min_res_unit);
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  query_cache_init();
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  query_cache_resize(query_cache_size);
3723
  randominit(&sql_rand,(ulong) server_start_time,(ulong) server_start_time/2);
3724
  setup_fpu();
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3725
  init_thr_lock();
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SCRUM  
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3726
#ifdef HAVE_REPLICATION
3727
  init_slave_list();
3728
#endif
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3730 3731
  /* Setup logs */

3732 3733 3734 3735 3736 3737
  /*
    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)
3738 3739
  {
    if (!log_error_file_ptr[0])
3740
      fn_format(log_error_file, pidfile_name, mysql_data_home, ".err",
3741 3742 3743 3744
                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;
3750
    if (!log_error_file[0])
3751
      opt_error_log= 0;                         // Too long file name
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    else
    {
#ifndef EMBEDDED_LIBRARY
      if (freopen(log_error_file, "a+", stdout))
#endif
3757
      {
3758
        reopen= freopen(log_error_file, "a+", stderr);
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        setbuf(stderr, NULL);
      }
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    }
  }

3764 3765
  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 */
  if (delegates_init())
  {
    sql_print_error("Initialize extension delegates failed");
    unireg_abort(1);
  }

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  /* need to configure logging before initializing storage engines */
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3792
  if (opt_log_slave_updates && !opt_bin_log)
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  {
3794
    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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3845 3846 3847 3848
    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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3857 3858 3859 3860 3861
      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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3863
    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);
    }
3872 3873
  }

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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,
3882 3883 3884 3885 3886
                  (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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  }
3888
  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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3907
      that there are unprocessed options.
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3908 3909
    */
    my_getopt_skip_unknown= 0;
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3910

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3911
    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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3918

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Marc Alff committed
3919
    if (remaining_argc > 1)
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3920 3921
    {
      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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3923
              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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3931
  /* 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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3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 3958 3959 3960 3961 3962
  /* 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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3967 3968
      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);
    }
4003 4004 4005 4006 4007 4008 4009 4010 4011 4012
    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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Merge  
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4039 4040
    if (purge_time >= 0)
      mysql_bin_log.purge_logs_before_date(purge_time);
4041
  }
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4042 4043 4044 4045
#endif

  if (opt_myisam_log)
    (void) mi_log(1);
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4047
#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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4066
    locked_in_memory=0;
4067

4068
  ft_init_stopwords();
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4069

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4070
  init_max_user_conn();
4071
  init_update_queries();
4072
  DBUG_RETURN(0);
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4073
}
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4074

4075

4076
#ifndef EMBEDDED_LIBRARY
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4077

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4078 4079 4080
static void create_shutdown_thread()
{
#ifdef __WIN__
4081 4082
  hEventShutdown=CreateEvent(0, FALSE, FALSE, shutdown_event_name);
  pthread_t hThread;
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Marc Alff committed
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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4086

4087 4088
  // On "Stop Service" we have to do regular shutdown
  Service.SetShutdownEvent(hEventShutdown);
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4089
#endif /* __WIN__ */
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4090
}
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4091

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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4097
{
4098 4099
  pthread_t hThread;
  DBUG_ENTER("handle_connections_methods");
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4100
  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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4108 4109
  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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4112
  {
4113
    handler_count++;
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4114 4115 4116
    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");
4119 4120 4121 4122 4123 4124
      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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4137 4138 4139
    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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4146

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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#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
#ifdef	__WIN__
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  /*
    Before performing any socket operation (like retrieving hostname
    in init_common_variables we have to call WSAStartup
  */
4374 4375 4376 4377
  {
    WSADATA WsaData;
    if (SOCKET_ERROR == WSAStartup (0x0101, &WsaData))
    {
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      /* errors are not read yet, so we use english text here */
4379
      my_message(ER_WSAS_FAILED, "WSAStartup Failed", MYF(0));
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4380 4381
      /* Not enough initializations for unireg_abort() */
      return 1;
4382 4383 4384 4385
    }
  }
#endif /* __WIN__ */

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4386
  if (init_common_variables())
4387
    unireg_abort(1);				// Will do exit
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  init_signals();
4390
#if defined(__ia64__) || defined(__ia64)
4391 4392 4393 4394
  /*
    Peculiar things with ia64 platforms - it seems we only have half the
    stack size in reality, so we have to double it here
  */
4395
  pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size*2);
4396
#else
4397
  pthread_attr_setstacksize(&connection_attrib,my_thread_stack_size);
4398
#endif
4399 4400 4401 4402 4403
#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);
4404 4405 4406
#if defined(__ia64__) || defined(__ia64)
    stack_size/= 2;
#endif
4407
    /* We must check if stack_size = 0 as Solaris 2.9 can return 0 here */
4408
    if (stack_size && stack_size < my_thread_stack_size)
4409 4410
    {
      if (global_system_variables.log_warnings)
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	sql_print_warning("Asked for %lu thread stack, but got %ld",
4412
			  my_thread_stack_size, (long) stack_size);
4413
#if defined(__ia64__) || defined(__ia64)
4414
      my_thread_stack_size= stack_size*2;
4415
#else
4416
      my_thread_stack_size= stack_size;
4417
#endif
4418 4419 4420
    }
  }
#endif
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4422
  (void) thr_setconcurrency(concurrency);	// 10 by default
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4424 4425
  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

4432 4433 4434 4435
#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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4439
  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)
  {
4455
    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.");
4461
#endif
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  }

  if (init_server_components())
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    unireg_abort(1);
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4467
  init_ssl();
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  network_init();

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#ifdef __WIN__
  if (!opt_console)
  {
4473 4474
    freopen(log_error_file,"a+",stdout);
    freopen(log_error_file,"a+",stderr);
4475
    setbuf(stderr, NULL);
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    FreeConsole();				// Remove window
4477
  }
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#endif

4480 4481 4482 4483 4484 4485
  /*
   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
  */
4490
  error_handler_hook= my_message_sql;
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  start_signal_handler();				// Creates pidfile
4492

4493
  if (mysql_rm_tmp_tables() || acl_init(opt_noacl) ||
4494
      my_tz_init((THD *)0, default_tz_name, opt_bootstrap))
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  {
    abort_loop=1;
    select_thread_in_use=0;
4498

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    (void) pthread_kill(signal_thread, MYSQL_KILL_SIGNAL);
4500

4501

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    if (!opt_bootstrap)
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4503
      mysql_file_delete(key_file_pid, pidfile_name, MYF(MY_WME)); // Not needed anymore
4504

4505
    if (unix_sock != INVALID_SOCKET)
4506
      unlink(mysqld_unix_port);
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    exit(1);
  }
4509

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4510
  if (!opt_noacl)
4511
    (void) grant_init();
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4512

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  if (!opt_bootstrap)
    servers_init(0);

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  if (!opt_noacl)
4517 4518
  {
#ifdef HAVE_DLOPEN
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    udf_init();
#endif
4521
  }
4522

4523
  init_status_vars();
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  if (opt_bootstrap) /* If running with bootstrap, do not start replication. */
    opt_skip_slave_start= 1;
4526 4527 4528 4529 4530 4531 4532 4533 4534 4535
  /*
    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);
  }
4536

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4537 4538
#ifdef WITH_PERFSCHEMA_STORAGE_ENGINE
  initialize_performance_schema_acl(opt_bootstrap);
4539 4540 4541 4542 4543 4544 4545 4546
  /*
    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();

4551 4552 4553 4554 4555
  execute_ddl_log_recovery();

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

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  if (opt_bootstrap)
  {
4558
    select_thread_in_use= 0;                    // Allow 'kill' to work
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4559
    bootstrap(mysql_stdin);
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4560
    unireg_abort(bootstrap_error ? 1 : 0);
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  }
4562
  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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4567

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4568
  create_shutdown_thread();
4569
  start_handle_manager();
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4570

4571
  sql_print_information(ER_DEFAULT(ER_STARTUP),my_progname,server_version,
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4572
                        ((unix_sock == INVALID_SOCKET) ? (char*) ""
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                                                       : mysqld_unix_port),
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                         mysqld_port,
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4575
                         MYSQL_COMPILATION_COMMENT);
4576 4577 4578
#if defined(_WIN32) && !defined(EMBEDDED_LIBRARY)
  Service.SetRunning();
#endif
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4579

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  /* Signal threads waiting for server to be started */
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4582
  mysql_mutex_lock(&LOCK_server_started);
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4583
  mysqld_server_started= 1;
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4584 4585
  mysql_cond_signal(&COND_server_started);
  mysql_mutex_unlock(&LOCK_server_started);
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4586

4587
#if defined(_WIN32) || defined(HAVE_SMEM)
4588
  handle_connections_methods();
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4589
#else
4590 4591
  handle_connections_sockets();
#endif /* _WIN32 || HAVE_SMEM */
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4592 4593

  /* (void) pthread_attr_destroy(&connection_attrib); */
4594
  
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4595 4596 4597
  DBUG_PRINT("quit",("Exiting main thread"));

#ifndef __WIN__
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#ifdef EXTRA_DEBUG2
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4599 4600
  sql_print_error("Before Lock_thread_count");
#endif
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4601
  mysql_mutex_lock(&LOCK_thread_count);
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4602
  DBUG_PRINT("quit", ("Got thread_count mutex"));
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4603
  select_thread_in_use=0;			// For close_connections
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4604 4605
  mysql_mutex_unlock(&LOCK_thread_count);
  mysql_cond_broadcast(&COND_thread_count);
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4606
#ifdef EXTRA_DEBUG2
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  sql_print_error("After lock_thread_count");
#endif
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4609
#endif /* __WIN__ */
4610

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  /* Wait until cleanup is done */
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4612
  mysql_mutex_lock(&LOCK_thread_count);
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  while (!ready_to_exit)
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4614 4615
    mysql_cond_wait(&COND_thread_count, &LOCK_thread_count);
  mysql_mutex_unlock(&LOCK_thread_count);
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4616 4617

#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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4627
  clean_up(1);
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#ifdef HAVE_PSI_INTERFACE
  /*
    Disable the instrumentation, to avoid recording events
    during the shutdown.
  */
  if (PSI_server)
  {
    PSI_server->delete_current_thread();
    PSI_server= NULL;
  }
  shutdown_performance_schema();
#endif
4640
  mysqld_exit(0);
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4641 4642
}

4643
#endif /* !EMBEDDED_LIBRARY */
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4644

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4645

4646 4647 4648 4649 4650
/****************************************************************************
  Main and thread entry function for Win32
  (all this is needed only to run mysqld as a service on WinNT)
****************************************************************************/

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4651
#if defined(__WIN__) && !defined(EMBEDDED_LIBRARY)
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4652 4653
int mysql_service(void *p)
{
4654 4655 4656 4657
  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;
}

4661 4662 4663 4664 4665 4666 4667 4668

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

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

  if (!strchr(from, ' '))
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    return strmake(to, from, length-1);
  return strxnmov(to, length-1, "\"", from, "\"", NullS);
4671 4672 4673
}


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4674 4675
/**
  Handle basic handling of services, like installation and removal.
4676

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4677 4678 4679 4680 4681 4682 4683
  @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
4684
    0		option handled
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  @retval
4686
    1		Could not handle option
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4687
*/
4688

4689 4690 4691 4692 4693
static bool
default_service_handling(char **argv,
			 const char *servicename,
			 const char *displayname,
			 const char *file_path,
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4694 4695
			 const char *extra_opt,
			 const char *account_name)
4696
{
4697
  char path_and_service[FN_REFLEN+FN_REFLEN+32], *pos, *end;
4698
  const char *opt_delim;
4699
  end= path_and_service + sizeof(path_and_service)-3;
4700 4701 4702 4703 4704

  /* We have to quote filename if it contains spaces */
  pos= add_quoted_string(path_and_service, file_path, end);
  if (*extra_opt)
  {
4705 4706 4707 4708 4709
    /* 
     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.  
    */
4710
    *pos++= ' ';
4711 4712 4713
    if (opt_delim= strchr(extra_opt, '='))
    {
      size_t length= ++opt_delim - extra_opt;
4714
      pos= strnmov(pos, extra_opt, length);
4715 4716 4717 4718 4719
    }
    else
      opt_delim= extra_opt;
    
    pos= add_quoted_string(pos, opt_delim, end);
4720
  }
4721 4722
  /* We must have servicename last */
  *pos++= ' ';
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4723
  (void) add_quoted_string(pos, servicename, end);
4724

4725 4726
  if (Service.got_service_option(argv, "install"))
  {
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4727 4728
    Service.Install(1, servicename, displayname, path_and_service,
                    account_name);
4729 4730 4731 4732
    return 0;
  }
  if (Service.got_service_option(argv, "install-manual"))
  {
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4733 4734
    Service.Install(0, servicename, displayname, path_and_service,
                    account_name);
4735 4736 4737 4738 4739 4740 4741 4742 4743 4744 4745
    return 0;
  }
  if (Service.got_service_option(argv, "remove"))
  {
    Service.Remove(servicename);
    return 0;
  }
  return 1;
}


4746
int mysqld_main(int argc, char **argv)
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4747
{
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4748 4749 4750 4751
  /*
    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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4752
  */
4753
  int10_to_str((int) GetCurrentProcessId(),strmov(shutdown_event_name,
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4754 4755
                                                  "MySQLShutdown"), 10);

4756 4757 4758
  /* Must be initialized early for comparison of service name */
  system_charset_info= &my_charset_utf8_general_ci;

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  if (Service.GetOS())	/* true NT family */
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  {
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    char file_path[FN_REFLEN];
4762
    my_path(file_path, argv[0], "");		      /* Find name in path */
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    fn_format(file_path,argv[0],file_path,"",
	      MY_REPLACE_DIR | MY_UNPACK_FILENAME | MY_RESOLVE_SYMLINKS);
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4766
    if (argc == 2)
4767
    {
4768
      if (!default_service_handling(argv, MYSQL_SERVICENAME, MYSQL_SERVICENAME,
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				   file_path, "", NULL))
4770
	return 0;
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      if (Service.IsService(argv[1]))        /* Start an optional service */
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      {
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	/*
	  Only add the service name to the groups read from the config file
	  if it's not "MySQL". (The default service name should be 'mysqld'
	  but we started a bad tradition by calling it MySQL from the start
	  and we are now stuck with it.
	*/
4779
	if (my_strcasecmp(system_charset_info, argv[1],"mysql"))
4780
	  load_default_groups[load_default_groups_sz-2]= argv[1];
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4781
        start_mode= 1;
4782
        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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4788 4789
      if (!default_service_handling(argv, argv[2], argv[2], file_path, "",
                                    NULL))
4790 4791
	return 0;
      if (Service.IsService(argv[2]))
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      {
4793 4794 4795 4796
	/*
	  mysqld was started as
	  mysqld --defaults-file=my_path\my.ini service-name
	*/
4797
	use_opt_args=1;
4798
	opt_argc= 2;				// Skip service-name
4799 4800
	opt_argv=argv;
	start_mode= 1;
4801
	if (my_strcasecmp(system_charset_info, argv[2],"mysql"))
4802
	  load_default_groups[load_default_groups_sz-2]= argv[2];
4803
	Service.Init(argv[2], mysql_service);
4804
	return 0;
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4805 4806
      }
    }
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4807
    else if (argc == 4 || argc == 5)
4808 4809
    {
      /*
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4810 4811 4812 4813 4814
        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.)
4815
      */
unknown's avatar
Merge  
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4816 4817 4818 4819 4820 4821 4822 4823 4824 4825 4826 4827 4828 4829 4830
      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;
4831
    }
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4832
    else if (argc == 1 && Service.IsService(MYSQL_SERVICENAME))
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4833
    {
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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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4840
  /* Start as standalone server */
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4841 4842 4843 4844 4845 4846 4847 4848
  Service.my_argc=argc;
  Service.my_argv=argv;
  mysql_service(NULL);
  return 0;
}
#endif


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4849
/**
4850 4851 4852
  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.
*/
4853

Marc Alff's avatar
Marc Alff committed
4854
static void bootstrap(MYSQL_FILE *file)
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4855
{
4856
  DBUG_ENTER("bootstrap");
4857

4858
  THD *thd= new THD;
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4859
  thd->bootstrap=1;
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4860
  my_net_init(&thd->net,(st_vio*) 0);
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4861
  thd->max_client_packet_length= thd->net.max_packet;
4862
  thd->security_ctx->master_access= ~(ulong)0;
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4863
  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
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4864
  thread_count++;
4865
  in_bootstrap= TRUE;
4866 4867

  bootstrap_file=file;
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4868
#ifndef EMBEDDED_LIBRARY			// TODO:  Enable this
Marc Alff's avatar
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4869 4870 4871
  if (mysql_thread_create(key_thread_bootstrap,
                          &thd->real_id, &connection_attrib, handle_bootstrap,
                          (void*) thd))
4872
  {
4873
    sql_print_warning("Can't create thread to handle bootstrap");
unknown's avatar
Merge  
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4874 4875
    bootstrap_error=-1;
    DBUG_VOID_RETURN;
4876 4877
  }
  /* Wait for thread to die */
Marc Alff's avatar
Marc Alff committed
4878
  mysql_mutex_lock(&LOCK_thread_count);
4879
  while (in_bootstrap)
4880
  {
Marc Alff's avatar
Marc Alff committed
4881
    mysql_cond_wait(&COND_thread_count, &LOCK_thread_count);
4882 4883
    DBUG_PRINT("quit",("One thread died (count=%u)",thread_count));
  }
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4884
  mysql_mutex_unlock(&LOCK_thread_count);
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4885 4886
#else
  thd->mysql= 0;
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4887
  do_handle_bootstrap(thd);
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4888 4889
#endif

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4890
  DBUG_VOID_RETURN;
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}

4893

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4894 4895
static bool read_init_file(char *file_name)
{
Marc Alff's avatar
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4896
  MYSQL_FILE *file;
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4897 4898
  DBUG_ENTER("read_init_file");
  DBUG_PRINT("enter",("name: %s",file_name));
Marc Alff's avatar
Marc Alff committed
4899 4900
  if (!(file= mysql_file_fopen(key_file_init, file_name,
                               O_RDONLY, MYF(MY_WME))))
4901
    DBUG_RETURN(TRUE);
unknown's avatar
Merge  
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4902
  bootstrap(file);
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Marc Alff committed
4903
  mysql_file_fclose(file, MYF(MY_WME));
4904
  DBUG_RETURN(FALSE);
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}


4908
#ifndef EMBEDDED_LIBRARY
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4909 4910 4911 4912 4913 4914 4915 4916 4917 4918

/*
   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!
*/
4919

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4920 4921
void handle_connection_in_main_thread(THD *thd)
{
Marc Alff's avatar
Marc Alff committed
4922
  mysql_mutex_assert_owner(&LOCK_thread_count);
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4923 4924
  thread_cache_size=0;			// Safety
  threads.append(thd);
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Marc Alff committed
4925
  mysql_mutex_unlock(&LOCK_thread_count);
4926
  thd->start_utime= my_micro_time();
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4927
  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++;
Marc Alff's avatar
Marc Alff committed
4942
    mysql_cond_signal(&COND_thread_cache);
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  }
  else
  {
4946
    char error_message_buff[MYSQL_ERRMSG_SIZE];
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4947 4948 4949 4950 4951
    /* Create new thread to handle connection */
    int error;
    thread_created++;
    threads.append(thd);
    DBUG_PRINT("info",(("creating thread %lu"), thd->thread_id));
4952
    thd->prior_thr_create_utime= thd->start_utime= my_micro_time();
Marc Alff's avatar
Marc Alff committed
4953 4954 4955 4956
    if ((error= mysql_thread_create(key_thread_one_connection,
                                    &thd->real_id, &connection_attrib,
                                    handle_one_connection,
                                    (void*) thd)))
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4957
    {
4958
      /* purecov: begin inspected */
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      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
4964
      mysql_mutex_unlock(&LOCK_thread_count);
4965

Marc Alff's avatar
Marc Alff committed
4966
      mysql_mutex_lock(&LOCK_connection_count);
4967
      --connection_count;
Marc Alff's avatar
Marc Alff committed
4968
      mysql_mutex_unlock(&LOCK_connection_count);
4969

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4970
      statistic_increment(aborted_connects,&LOCK_status);
4971 4972 4973
      /* 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
4974
      net_send_error(thd, ER_CANT_CREATE_THREAD, error_message_buff, NULL);
Marc Alff's avatar
Marc Alff committed
4975
      mysql_mutex_lock(&LOCK_thread_count);
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      close_connection(thd,0,0);
      delete thd;
Marc Alff's avatar
Marc Alff committed
4978
      mysql_mutex_unlock(&LOCK_thread_count);
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4979 4980 4981 4982
      return;
      /* purecov: end */
    }
  }
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4983
  mysql_mutex_unlock(&LOCK_thread_count);
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4984 4985 4986 4987
  DBUG_PRINT("info",("Thread created"));
}


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4988
/**
4989 4990 4991 4992 4993 4994
  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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4995
    In single-threaded mode (\#define ONE_THREAD) connection will be
4996 4997
    handled inside this function.

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4998
  @param[in,out] thd    Thread handle of future thread.
4999 5000
*/

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5001 5002 5003 5004
static void create_new_thread(THD *thd)
{
  DBUG_ENTER("create_new_thread");

5005 5006 5007 5008 5009
  /*
    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
5010
  mysql_mutex_lock(&LOCK_connection_count);
5011 5012

  if (connection_count >= max_connections + 1 || abort_loop)
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5013
  {
Marc Alff's avatar
Marc Alff committed
5014
    mysql_mutex_unlock(&LOCK_connection_count);
5015

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5016
    DBUG_PRINT("error",("Too many connections"));
5017
    close_connection(thd, ER_CON_COUNT_ERROR, 1);
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5018 5019 5020
    delete thd;
    DBUG_VOID_RETURN;
  }
5021 5022 5023

  ++connection_count;

5024 5025 5026
  if (connection_count > max_used_connections)
    max_used_connections= connection_count;

Marc Alff's avatar
Marc Alff committed
5027
  mysql_mutex_unlock(&LOCK_connection_count);
5028 5029 5030

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

Marc Alff's avatar
Marc Alff committed
5031
  mysql_mutex_lock(&LOCK_thread_count);
5032

5033 5034 5035 5036 5037
  /*
    The initialization of thread_id is done in create_embedded_thd() for
    the embedded library.
    TODO: refactor this to avoid code duplication there
  */
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5038
  thd->thread_id= thd->variables.pseudo_thread_id= thread_id++;
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5039

5040 5041
  thread_count++;

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5042
  thread_scheduler.add_connection(thd);
5043

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5044 5045
  DBUG_VOID_RETURN;
}
5046 5047
#endif /* EMBEDDED_LIBRARY */

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5048

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5049 5050 5051 5052
#ifdef SIGNALS_DONT_BREAK_READ
inline void kill_broken_server()
{
  /* hack to get around signals ignored in syscalls for problem OS's */
5053
  if (unix_sock == INVALID_SOCKET ||
5054
      (!opt_disable_networking && ip_sock == INVALID_SOCKET))
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5055 5056
  {
    select_thread_in_use = 0;
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5057
    /* The following call will never return */
5058
    kill_server((void*) MYSQL_KILL_SIGNAL);
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5059 5060 5061 5062 5063 5064
  }
}
#define MAYBE_BROKEN_SYSCALL kill_broken_server();
#else
#define MAYBE_BROKEN_SYSCALL
#endif
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5065 5066 5067

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

5068
#ifndef EMBEDDED_LIBRARY
5069

5070
void handle_connections_sockets()
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5071
{
5072
  my_socket UNINIT_VAR(sock), UNINIT_VAR(new_sock);
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5073 5074
  uint error_count=0;
  THD *thd;
5075
  struct sockaddr_storage cAddr;
5076
  int ip_flags=0,socket_flags=0,flags=0,retval;
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5077
  st_vio *vio_tmp;
5078 5079 5080 5081 5082 5083 5084 5085
#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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5086 5087
  DBUG_ENTER("handle_connections_sockets");

5088
#ifndef HAVE_POLL
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5089
  FD_ZERO(&clientFDs);
5090 5091
#endif

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5092 5093
  if (ip_sock != INVALID_SOCKET)
  {
5094 5095 5096 5097 5098
#ifdef HAVE_POLL
    fds[socket_count].fd= ip_sock;
    fds[socket_count].events= POLLIN;
    socket_count++;
#else
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5099
    FD_SET(ip_sock,&clientFDs);
5100
#endif    
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5101 5102 5103 5104 5105
#ifdef HAVE_FCNTL
    ip_flags = fcntl(ip_sock, F_GETFL, 0);
#endif
  }
#ifdef HAVE_SYS_UN_H
5106 5107 5108 5109 5110
#ifdef HAVE_POLL
  fds[socket_count].fd= unix_sock;
  fds[socket_count].events= POLLIN;
  socket_count++;
#else
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5111
  FD_SET(unix_sock,&clientFDs);
5112
#endif
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5113
#ifdef HAVE_FCNTL
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5114
  socket_flags=fcntl(unix_sock, F_GETFL, 0);
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5115
#endif
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5116 5117 5118
#endif

  DBUG_PRINT("general",("Waiting for connections."));
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5119
  MAYBE_BROKEN_SYSCALL;
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5120 5121
  while (!abort_loop)
  {
5122 5123
#ifdef HAVE_POLL
    retval= poll(fds, socket_count, -1);
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5124
#else
5125 5126 5127 5128 5129 5130
    readFDs=clientFDs;

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

    if (retval < 0)
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5131
    {
unknown's avatar
unknown committed
5132
      if (socket_errno != SOCKET_EINTR)
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5133 5134
      {
	if (!select_errors++ && !abort_loop)	/* purecov: inspected */
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5135
	  sql_print_error("mysqld: Got error %d from select",socket_errno); /* purecov: inspected */
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5136
      }
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5137
      MAYBE_BROKEN_SYSCALL
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5138 5139
      continue;
    }
5140

unknown's avatar
unknown committed
5141
    if (abort_loop)
unknown's avatar
unknown committed
5142 5143
    {
      MAYBE_BROKEN_SYSCALL;
unknown's avatar
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5144
      break;
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5145
    }
unknown's avatar
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5146

5147
    /* Is this a new connection request ? */
5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162
#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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5163 5164 5165 5166 5167 5168 5169
#ifdef HAVE_SYS_UN_H
    if (FD_ISSET(unix_sock,&readFDs))
    {
      sock = unix_sock;
      flags= socket_flags;
    }
    else
5170
#endif // HAVE_SYS_UN_H
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5171 5172 5173 5174
    {
      sock = ip_sock;
      flags= ip_flags;
    }
5175
#endif // HAVE_POLL
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5176 5177 5178 5179 5180 5181 5182 5183 5184 5185 5186 5187 5188

#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++)
    {
5189 5190 5191
      size_socket length= sizeof(struct sockaddr_storage);
      new_sock= accept(sock, (struct sockaddr *)(&cAddr),
                       &length);
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5192 5193
      if (new_sock != INVALID_SOCKET ||
	  (socket_errno != SOCKET_EINTR && socket_errno != SOCKET_EAGAIN))
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5194
	break;
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5195
      MAYBE_BROKEN_SYSCALL;
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5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207
#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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5208
    if (new_sock == INVALID_SOCKET)
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5209 5210 5211
    {
      if ((error_count++ & 255) == 0)		// This can happen often
	sql_perror("Error in accept");
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5212
      MAYBE_BROKEN_SYSCALL;
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5213
      if (socket_errno == SOCKET_ENFILE || socket_errno == SOCKET_EMFILE)
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5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224
	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);
5225 5226
	my_fromhost(&req);
	if (!my_hosts_access(&req))
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5227
	{
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	  /*
	    This may be stupid but refuse() includes an exit(0)
	    which we surely don't want...
	    clean_exit() - same stupid thing ...
	  */
5233
	  syslog(deny_severity, "refused connect from %s",
5234
		 my_eval_client(&req));
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5235

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5236 5237 5238 5239 5240 5241
	  /*
	    C++ sucks (the gibberish in front just translates the supplied
	    sink function pointer in the req structure from a void (*sink)();
	    to a void(*sink)(int) if you omit the cast, the C++ compiler
	    will cry...
	  */
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5242 5243 5244
	  if (req.sink)
	    ((void (*)(int))req.sink)(req.fd);

5245
	  (void) shutdown(new_sock, SHUT_RDWR);
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	  (void) closesocket(new_sock);
	  continue;
	}
      }
    }
#endif /* HAVE_LIBWRAP */

    {
      size_socket dummyLen;
5255 5256 5257 5258
      struct sockaddr_storage dummy;
      dummyLen = sizeof(dummy);
      if (  getsockname(new_sock,(struct sockaddr *)&dummy, 
                  (SOCKET_SIZE_TYPE *)&dummyLen) < 0  )
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5259 5260
      {
	sql_perror("Error on new connection socket");
5261
	(void) shutdown(new_sock, SHUT_RDWR);
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	(void) closesocket(new_sock);
	continue;
      }
    }

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

    if (!(thd= new THD))
    {
5273
      (void) shutdown(new_sock, SHUT_RDWR);
Konstantin Osipov's avatar
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5274
      (void) closesocket(new_sock);
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5275 5276 5277
      continue;
    }
    if (!(vio_tmp=vio_new(new_sock,
5278
			  sock == unix_sock ? VIO_TYPE_SOCKET :
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5279
			  VIO_TYPE_TCPIP,
5280
			  sock == unix_sock ? VIO_LOCALHOST: 0)) ||
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5281 5282
	my_net_init(&thd->net,vio_tmp))
    {
5283 5284 5285 5286 5287 5288 5289
      /*
        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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5290 5291
      else
      {
5292
	(void) shutdown(new_sock, SHUT_RDWR);
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	(void) closesocket(new_sock);
      }
      delete thd;
      continue;
    }
    if (sock == unix_sock)
5299
      thd->security_ctx->host=(char*) my_localhost;
5300

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5301 5302
    create_new_thread(thd);
  }
5303 5304 5305
  DBUG_VOID_RETURN;
}

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5306

5307 5308 5309 5310 5311
#ifdef _WIN32
pthread_handler_t handle_connections_sockets_thread(void *arg)
{
  my_thread_init();
  handle_connections_sockets();
5312
  decrement_handler_count();
5313
  return 0;
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5314 5315
}

5316
pthread_handler_t handle_connections_namedpipes(void *arg)
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5317 5318
{
  HANDLE hConnectedPipe;
5319
  OVERLAPPED connectOverlapped= {0};
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  THD *thd;
  my_thread_init();
  DBUG_ENTER("handle_connections_namedpipes");
5323 5324 5325 5326 5327 5328
  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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5329 5330 5331 5332
  DBUG_PRINT("general",("Waiting for named pipe connections."));
  while (!abort_loop)
  {
    /* wait for named pipe connection */
5333 5334 5335 5336 5337 5338 5339 5340 5341 5342
    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);
    }
unknown's avatar
unknown committed
5343 5344
    if (abort_loop)
      break;
unknown's avatar
unknown committed
5345
    if (!fConnected)
unknown's avatar
unknown committed
5346
      fConnected = GetLastError() == ERROR_PIPE_CONNECTED;
unknown's avatar
unknown committed
5347
    if (!fConnected)
unknown's avatar
unknown committed
5348
    {
unknown's avatar
Merge  
unknown committed
5349 5350
      CloseHandle(hPipe);
      if ((hPipe= CreateNamedPipe(pipe_name,
5351 5352
                                  PIPE_ACCESS_DUPLEX |
                                  FILE_FLAG_OVERLAPPED,
unknown's avatar
Merge  
unknown committed
5353 5354 5355 5356 5357 5358 5359 5360 5361 5362 5363
                                  PIPE_TYPE_BYTE |
                                  PIPE_READMODE_BYTE |
                                  PIPE_WAIT,
                                  PIPE_UNLIMITED_INSTANCES,
                                  (int) global_system_variables.
                                  net_buffer_length,
                                  (int) global_system_variables.
                                  net_buffer_length,
                                  NMPWAIT_USE_DEFAULT_WAIT,
                                  &saPipeSecurity)) ==
	  INVALID_HANDLE_VALUE)
unknown's avatar
unknown committed
5364 5365 5366 5367 5368 5369 5370
      {
	sql_perror("Can't create new named pipe!");
	break;					// Abort
      }
    }
    hConnectedPipe = hPipe;
    /* create new pipe for new connection */
5371
    if ((hPipe = CreateNamedPipe(pipe_name,
5372 5373
                 PIPE_ACCESS_DUPLEX |
                 FILE_FLAG_OVERLAPPED,
unknown's avatar
unknown committed
5374 5375 5376 5377
				 PIPE_TYPE_BYTE |
				 PIPE_READMODE_BYTE |
				 PIPE_WAIT,
				 PIPE_UNLIMITED_INSTANCES,
5378 5379
				 (int) global_system_variables.net_buffer_length,
				 (int) global_system_variables.net_buffer_length,
unknown's avatar
unknown committed
5380 5381 5382 5383 5384 5385 5386 5387 5388
				 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
5389
    if (!(thd = new THD))
unknown's avatar
unknown committed
5390
    {
unknown's avatar
Merge  
unknown committed
5391 5392
      DisconnectNamedPipe(hConnectedPipe);
      CloseHandle(hConnectedPipe);
unknown's avatar
unknown committed
5393 5394
      continue;
    }
5395
    if (!(thd->net.vio= vio_new_win32pipe(hConnectedPipe)) ||
unknown's avatar
unknown committed
5396 5397
	my_net_init(&thd->net, thd->net.vio))
    {
5398
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
unknown's avatar
unknown committed
5399 5400 5401
      delete thd;
      continue;
    }
5402 5403
    /* Host is unknown */
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0));
unknown's avatar
unknown committed
5404 5405
    create_new_thread(thd);
  }
5406
  CloseHandle(connectOverlapped.hEvent);
5407
  DBUG_LEAVE;
5408
  decrement_handler_count();
5409
  return 0;
unknown's avatar
unknown committed
5410
}
Vladislav Vaintroub's avatar
Vladislav Vaintroub committed
5411
#endif /* _WIN32 */
unknown's avatar
unknown committed
5412

5413

unknown's avatar
unknown committed
5414
#ifdef HAVE_SMEM
5415

unknown's avatar
unknown committed
5416 5417
/**
  Thread of shared memory's service.
5418

unknown's avatar
unknown committed
5419 5420
  @param arg                              Arguments of thread
*/
5421
pthread_handler_t handle_connections_shared_memory(void *arg)
5422
{
5423 5424
  /* file-mapping object, use for create shared memory */
  HANDLE handle_connect_file_map= 0;
5425
  char  *handle_connect_map= 0;                 // pointer on shared memory
5426 5427 5428
  HANDLE event_connect_answer= 0;
  ulong smem_buffer_length= shared_memory_buffer_length + 4;
  ulong connect_number= 1;
5429
  char *tmp= NULL;
5430 5431
  char *suffix_pos;
  char connect_number_char[22], *p;
5432
  const char *errmsg= 0;
5433
  SECURITY_ATTRIBUTES *sa_event= 0, *sa_mapping= 0;
5434 5435 5436 5437
  my_thread_init();
  DBUG_ENTER("handle_connections_shared_memorys");
  DBUG_PRINT("general",("Waiting for allocated shared memory."));

5438 5439 5440 5441 5442 5443
  /*
     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;

5444 5445 5446 5447 5448 5449 5450 5451
  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;

5452 5453 5454 5455 5456 5457 5458
  /*
    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)
  */
5459
  suffix_pos= strxmov(tmp,shared_memory_base_name,"_",NullS);
5460
  strmov(suffix_pos, "CONNECT_REQUEST");
5461 5462
  if ((smem_event_connect_request= CreateEvent(sa_event,
                                               FALSE, FALSE, tmp)) == 0)
5463
  {
5464
    errmsg= "Could not create request event";
5465 5466
    goto error;
  }
5467
  strmov(suffix_pos, "CONNECT_ANSWER");
5468
  if ((event_connect_answer= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5469
  {
5470
    errmsg="Could not create answer event";
5471 5472
    goto error;
  }
5473
  strmov(suffix_pos, "CONNECT_DATA");
5474 5475 5476
  if ((handle_connect_file_map=
       CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                         PAGE_READWRITE, 0, sizeof(connect_number), tmp)) == 0)
5477
  {
5478
    errmsg= "Could not create file mapping";
5479 5480
    goto error;
  }
5481 5482 5483
  if ((handle_connect_map= (char *)MapViewOfFile(handle_connect_file_map,
						  FILE_MAP_WRITE,0,0,
						  sizeof(DWORD))) == 0)
5484
  {
5485
    errmsg= "Could not create shared memory service";
5486 5487 5488 5489 5490
    goto error;
  }

  while (!abort_loop)
  {
5491
    /* Wait a request from client */
5492
    WaitForSingleObject(smem_event_connect_request,INFINITE);
5493

unknown's avatar
unknown committed
5494 5495 5496
    /*
       it can be after shutdown command
    */
unknown's avatar
Merge  
unknown committed
5497
    if (abort_loop)
unknown's avatar
unknown committed
5498
      goto error;
5499

5500 5501 5502 5503 5504 5505
    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
5506
    HANDLE event_conn_closed= 0;
5507
    THD *thd= 0;
5508

5509
    p= int10_to_str(connect_number, connect_number_char, 10);
5510 5511 5512 5513 5514 5515 5516 5517 5518 5519
    /*
      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);
5520
    strmov(suffix_pos, "DATA");
5521 5522 5523
    if ((handle_client_file_map=
         CreateFileMapping(INVALID_HANDLE_VALUE, sa_mapping,
                           PAGE_READWRITE, 0, smem_buffer_length, tmp)) == 0)
5524
    {
5525
      errmsg= "Could not create file mapping";
5526 5527
      goto errorconn;
    }
5528 5529 5530
    if ((handle_client_map= (char*)MapViewOfFile(handle_client_file_map,
						  FILE_MAP_WRITE,0,0,
						  smem_buffer_length)) == 0)
5531
    {
5532
      errmsg= "Could not create memory map";
5533 5534 5535
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_WROTE");
5536
    if ((event_client_wrote= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5537
    {
5538
      errmsg= "Could not create client write event";
5539 5540 5541
      goto errorconn;
    }
    strmov(suffix_pos, "CLIENT_READ");
5542
    if ((event_client_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5543
    {
5544
      errmsg= "Could not create client read event";
5545 5546 5547
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_READ");
5548
    if ((event_server_read= CreateEvent(sa_event, FALSE, FALSE, tmp)) == 0)
5549
    {
5550
      errmsg= "Could not create server read event";
5551 5552 5553
      goto errorconn;
    }
    strmov(suffix_pos, "SERVER_WROTE");
5554 5555
    if ((event_server_wrote= CreateEvent(sa_event,
                                         FALSE, FALSE, tmp)) == 0)
5556
    {
5557
      errmsg= "Could not create server write event";
5558 5559
      goto errorconn;
    }
unknown's avatar
unknown committed
5560
    strmov(suffix_pos, "CONNECTION_CLOSED");
5561 5562
    if ((event_conn_closed= CreateEvent(sa_event,
                                        TRUE, FALSE, tmp)) == 0)
unknown's avatar
unknown committed
5563 5564 5565 5566
    {
      errmsg= "Could not create closed connection event";
      goto errorconn;
    }
5567
    if (abort_loop)
5568
      goto errorconn;
5569 5570 5571
    if (!(thd= new THD))
      goto errorconn;
    /* Send number of connection to client */
5572
    int4store(handle_connect_map, connect_number);
5573
    if (!SetEvent(event_connect_answer))
5574
    {
5575
      errmsg= "Could not send answer event";
5576 5577
      goto errorconn;
    }
5578
    /* Set event that client should receive data */
5579 5580
    if (!SetEvent(event_client_read))
    {
5581
      errmsg= "Could not set client to read mode";
5582 5583
      goto errorconn;
    }
5584
    if (!(thd->net.vio= vio_new_win32shared_memory(handle_client_file_map,
unknown's avatar
unknown committed
5585 5586 5587 5588 5589
                                                   handle_client_map,
                                                   event_client_wrote,
                                                   event_client_read,
                                                   event_server_wrote,
                                                   event_server_read,
unknown's avatar
unknown committed
5590
                                                   event_conn_closed)) ||
unknown's avatar
unknown committed
5591
                        my_net_init(&thd->net, thd->net.vio))
5592
    {
5593
      close_connection(thd, ER_OUT_OF_RESOURCES, 1);
5594 5595
      errmsg= 0;
      goto errorconn;
5596
    }
5597
    thd->security_ctx->host= my_strdup(my_localhost, MYF(0)); /* Host is unknown */
5598
    create_new_thread(thd);
5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610
    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);
    }
5611
    if (handle_client_file_map)
unknown's avatar
unknown committed
5612 5613 5614 5615 5616 5617 5618 5619 5620 5621 5622 5623 5624
      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);
5625
    delete thd;
5626
  }
5627 5628

  /* End shared memory handling */
5629
error:
5630
  if (tmp)
5631
    my_free(tmp);
5632

5633 5634 5635 5636 5637 5638
  if (errmsg)
  {
    char buff[180];
    strxmov(buff, "Can't create shared memory service: ", errmsg, ".", NullS);
    sql_perror(buff);
  }
5639 5640
  my_security_attr_free(sa_event);
  my_security_attr_free(sa_mapping);
5641 5642 5643
  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);
5644
  if (smem_event_connect_request) CloseHandle(smem_event_connect_request);
5645
  DBUG_LEAVE;
5646
  decrement_handler_count();
5647
  return 0;
5648 5649
}
#endif /* HAVE_SMEM */
5650
#endif /* EMBEDDED_LIBRARY */
unknown's avatar
unknown committed
5651

5652 5653 5654

/****************************************************************************
  Handle start options
unknown's avatar
unknown committed
5655 5656
******************************************************************************/

5657
DYNAMIC_ARRAY all_options;
5658

5659 5660 5661 5662 5663
/**
  System variables are automatically command-line options (few
  exceptions are documented in sys_var.h), so don't need
  to be listed here.
*/
5664

Marc Alff's avatar
Marc Alff committed
5665
struct my_option my_long_options[]=
5666
{
unknown's avatar
unknown committed
5667
  {"help", '?', "Display this help and exit.", 
5668
   &opt_help, &opt_help, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0,
unknown's avatar
unknown committed
5669 5670
   0, 0},
#ifdef HAVE_REPLICATION
5671
  {"abort-slave-event-count", 0,
unknown's avatar
unknown committed
5672
   "Option used by mysql-test for debugging and testing of replication.",
5673
   &abort_slave_event_count,  &abort_slave_event_count,
unknown's avatar
unknown committed
5674 5675
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#endif /* HAVE_REPLICATION */
5676
  {"allow-suspicious-udfs", 0,
unknown's avatar
unknown committed
5677 5678
   "Allows use of UDFs consisting of only one symbol xxx() "
   "without corresponding xxx_init() or xxx_deinit(). That also means "
5679 5680
   "that one can load any function from any library, for example exit() "
   "from libc.so",
5681
   &opt_allow_suspicious_udfs, &opt_allow_suspicious_udfs,
5682
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5683 5684
  {"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
5685
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
unknown's avatar
unknown committed
5686
  {"bind-address", OPT_BIND_ADDRESS, "IP address to bind to.",
5687
   &my_bind_addr_str, &my_bind_addr_str, 0, GET_STR,
unknown's avatar
unknown committed
5688
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5689
  {"binlog-do-db", OPT_BINLOG_DO_DB,
5690 5691
   "Tells the master it should log updates for the specified database, "
   "and exclude all others not explicitly mentioned.",
5692
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
unknown's avatar
unknown committed
5693
  {"binlog-ignore-db", OPT_BINLOG_IGNORE_DB,
Staale Smedseng's avatar
Staale Smedseng committed
5694
   "Tells the master that updates to the given database should not be logged to the binary log.",
5695
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5696
  {"binlog-row-event-max-size", 0,
5697 5698 5699
   "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.",
5700 5701
   &opt_binlog_rows_event_max_size, &opt_binlog_rows_event_max_size,
   0, GET_ULONG, REQUIRED_ARG,
5702 5703 5704 5705
   /* def_value */ 1024, /* min_value */  256, /* max_value */ ULONG_MAX, 
   /* sub_size */     0, /* block_size */ 256, 
   /* app_type */ 0
  },
5706
#ifndef DISABLE_GRANT_OPTIONS
5707
  {"bootstrap", OPT_BOOTSTRAP, "Used by mysql installation scripts.", 0, 0, 0,
5708
   GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5709
#endif
5710
  {"character-set-client-handshake", 0,
unknown's avatar
unknown committed
5711
   "Don't ignore client side character set value sent during handshake.",
5712 5713
   &opt_character_set_client_handshake,
   &opt_character_set_client_handshake,
5714
    0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
5715
  {"character-set-filesystem", 0,
unknown's avatar
unknown committed
5716
   "Set the filesystem character set.",
5717 5718
   &character_set_filesystem_name,
   &character_set_filesystem_name,
unknown's avatar
unknown committed
5719
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
unknown's avatar
unknown committed
5720
  {"character-set-server", 'C', "Set the default character set.",
5721
   &default_character_set_name, &default_character_set_name,
unknown's avatar
unknown committed
5722
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
unknown's avatar
unknown committed
5723
  {"chroot", 'r', "Chroot mysqld daemon during startup.",
5724
   &mysqld_chroot, &mysqld_chroot, 0, GET_STR, REQUIRED_ARG,
unknown's avatar
unknown committed
5725
   0, 0, 0, 0, 0, 0},
5726
  {"collation-server", 0, "Set the default collation.",
5727
   &default_collation_name, &default_collation_name,
unknown's avatar
unknown committed
5728
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
Staale Smedseng's avatar
Staale Smedseng committed
5729
  {"console", OPT_CONSOLE, "Write error output on screen; don't remove the console window on windows.",
5730
   &opt_console, &opt_console, 0, GET_BOOL, NO_ARG, 0, 0, 0,
5731
   0, 0, 0},
5732
  {"core-file", OPT_WANT_CORE, "Write core on errors.", 0, 0, 0, GET_NO_ARG,
5733
   NO_ARG, 0, 0, 0, 0, 0, 0},
5734 5735 5736
  /* 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. */
5737
  {"default-storage-engine", 0, "The default storage engine for new tables",
5738
   &default_storage_engine, 0, 0, GET_STR, REQUIRED_ARG,
5739
   0, 0, 0, 0, 0, 0 },
5740
  {"default-time-zone", 0, "Set the default time zone.",
5741
   &default_tz_name, &default_tz_name,
5742
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
unknown's avatar
unknown committed
5743
#ifdef HAVE_OPENSSL
5744
  {"des-key-file", 0,
unknown's avatar
unknown committed
5745
   "Load keys for des_encrypt() and des_encrypt from given file.",
5746
   &des_key_file, &des_key_file, 0, GET_STR, REQUIRED_ARG,
unknown's avatar
unknown committed
5747 5748 5749
   0, 0, 0, 0, 0, 0},
#endif /* HAVE_OPENSSL */
#ifdef HAVE_REPLICATION
5750
  {"disconnect-slave-event-count", 0,
unknown's avatar
unknown committed
5751
   "Option used by mysql-test for debugging and testing of replication.",
5752 5753
   &disconnect_slave_event_count, &disconnect_slave_event_count,
   0, GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
unknown's avatar
unknown committed
5754
#endif /* HAVE_REPLICATION */
5755
#ifdef HAVE_STACK_TRACE_ON_SEGV
5756
  {"enable-pstack", 0, "Print a symbolic stack trace on failure.",
5757
   &opt_do_pstack, &opt_do_pstack, 0, GET_BOOL, NO_ARG, 0, 0,
5758
   0, 0, 0, 0},
5759
#endif /* HAVE_STACK_TRACE_ON_SEGV */
Staale Smedseng's avatar
Staale Smedseng committed
5760
  {"exit-info", 'T', "Used for debugging. Use at your own risk.", 0, 0, 0,
5761
   GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0},
5762 5763 5764 5765 5766

  {"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
5767
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5768 5769
  /* We must always support the next option to make scripts like mysqltest
     easier to do */
5770
  {"gdb", 0,
Staale Smedseng's avatar
Staale Smedseng committed
5771
   "Set up signals usable for debugging.",
5772
   &opt_debugging, &opt_debugging,
5773
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5774
#ifdef HAVE_LARGE_PAGE_OPTION
5775
  {"super-large-pages", 0, "Enable support for super large pages.",
5776
   &opt_super_large_pages, &opt_super_large_pages, 0,
5777
   GET_BOOL, OPT_ARG, 0, 0, 1, 0, 1, 0},
unknown's avatar
Merge  
unknown committed
5778
#endif
5779
  {"language", 'L',
5780 5781
   "Client error messages in given language. May be given as a full path. "
   "Deprecated. Use --lc-messages-dir instead.",
5782
   &lc_messages_dir_ptr, &lc_messages_dir_ptr, 0,
5783
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5784
  {"lc-messages", 0,
5785
   "Set the language used for the error messages.",
5786
   &lc_messages, &lc_messages, 0, GET_STR, REQUIRED_ARG,
5787
   0, 0, 0, 0, 0, 0 },
5788
  {"lc-time-names", 0,
5789
   "Set the language used for the month names and the days of the week.",
5790
   &lc_time_names_name, &lc_time_names_name,
5791
   0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
5792
  {"log", 'l', "Log connections and queries to file (deprecated option, use "
5793 5794
   "--general-log/--general-log-file instead).", &opt_logname, &opt_logname,
   0, GET_STR_ALLOC, OPT_ARG, 0, 0, 0, 0, 0, 0},
5795
  {"log-bin", OPT_BIN_LOG,
unknown's avatar
Merge  
unknown committed
5796 5797 5798
   "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.",
5799
   &opt_bin_logname, &opt_bin_logname, 0, GET_STR_ALLOC,
unknown's avatar
unknown committed
5800
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5801
  {"log-bin-index", 0,
5802
   "File that holds the names for last binary log files.",
5803
   &opt_binlog_index_name, &opt_binlog_index_name, 0, GET_STR,
5804
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5805
  {"log-isam", OPT_ISAM_LOG, "Log all MyISAM changes to file.",
5806
   &myisam_log_filename, &myisam_log_filename, 0, GET_STR,
5807
   OPT_ARG, 0, 0, 0, 0, 0, 0},
5808
  {"log-short-format", 0,
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unknown committed
5809
   "Don't log extra information to update and slow-query logs.",
5810
   &opt_short_log_format, &opt_short_log_format,
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5811
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5812
  {"log-slow-admin-statements", 0,
5813 5814
   "Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to "
   "the slow log if it is open.", &opt_log_slow_admin_statements,
5815
   &opt_log_slow_admin_statements, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5816
 {"log-slow-slave-statements", 0,
5817
  "Log slow statements executed by slave thread to the slow log if it is open.",
5818
  &opt_log_slow_slave_statements, &opt_log_slow_slave_statements,
5819
  0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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5820 5821 5822 5823 5824
  {"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.",
5825
   &opt_slow_logname, &opt_slow_logname, 0, GET_STR_ALLOC, OPT_ARG,
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5826
   0, 0, 0, 0, 0, 0},
5827
  {"log-tc", 0,
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5828
   "Path to transaction coordinator log (used for transactions that affect "
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Staale Smedseng committed
5829
   "more than one storage engine, when binary log is disabled).",
5830
   &opt_tc_log_file, &opt_tc_log_file, 0, GET_STR,
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Merge  
unknown committed
5831
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5832
#ifdef HAVE_MMAP
5833
  {"log-tc-size", 0, "Size of transaction coordinator log.",
5834
   &opt_tc_log_size, &opt_tc_log_size, 0, GET_ULONG,
5835 5836
   REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, ULONG_MAX, 0,
   TC_LOG_PAGE_SIZE, 0},
5837
#endif
5838
  {"master-info-file", 0,
5839 5840 5841
   "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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5842
   REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5843
  {"master-retry-count", 0,
5844
   "The number of tries the slave will make to connect to the master before giving up.",
5845
   &master_retry_count, &master_retry_count, 0, GET_ULONG,
5846
   REQUIRED_ARG, 3600*24, 0, 0, 0, 0, 0},
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SCRUM  
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5847
#ifdef HAVE_REPLICATION
5848
  {"init-rpl-role", 0, "Set the replication role.",
5849
   &rpl_status, &rpl_status, &rpl_role_typelib,
5850 5851
   GET_ENUM, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"max-binlog-dump-events", 0,
5852
   "Option used by mysql-test for debugging and testing of replication.",
5853
   &max_binlog_dump_events, &max_binlog_dump_events, 0,
5854
   GET_INT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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SCRUM  
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5855
#endif /* HAVE_REPLICATION */
5856
  {"memlock", 0, "Lock mysqld in memory.", &locked_in_memory,
5857
   &locked_in_memory, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5858
  {"one-thread", OPT_ONE_THREAD,
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5859 5860
   "(Deprecated): Only use one thread (for debugging under Linux). Use "
   "thread-handling=no-threads instead.",
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5861
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5862
  {"old-style-user-limits", 0,
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5863 5864
   "Enable old-style user limits (before 5.0.3, user resources were counted "
   "per each user+host vs. per account).",
5865
   &opt_old_style_user_limits, &opt_old_style_user_limits,
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unknown committed
5866
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5867
  {"port-open-timeout", 0,
5868
   "Maximum time in seconds to wait for the port to become free. "
5869 5870
   "(Default: No wait).", &mysqld_port_timeout, &mysqld_port_timeout, 0,
   GET_UINT, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5871
  {"replicate-do-db", OPT_REPLICATE_DO_DB,
5872 5873 5874 5875 5876 5877 5878
   "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.%.",
5879 5880
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-do-table", OPT_REPLICATE_DO_TABLE,
5881 5882 5883 5884
   "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},
5885
  {"replicate-ignore-db", OPT_REPLICATE_IGNORE_DB,
5886 5887 5888 5889 5890 5891
   "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},
5892
  {"replicate-ignore-table", OPT_REPLICATE_IGNORE_TABLE,
5893 5894 5895
   "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 "
5896
   "replicate-ignore-db.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5897
  {"replicate-rewrite-db", OPT_REPLICATE_REWRITE_DB,
5898 5899
   "Updates to a database with a different name than the original. Example: "
   "replicate-rewrite-db=master_db_name->slave_db_name.",
5900
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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5901
#ifdef HAVE_REPLICATION
5902
  {"replicate-same-server-id", 0,
5903 5904 5905 5906
   "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,
5907
   0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
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5908
#endif
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5909
  {"replicate-wild-do-table", OPT_REPLICATE_WILD_DO_TABLE,
5910 5911 5912 5913 5914 5915
   "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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5916 5917
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
  {"replicate-wild-ignore-table", OPT_REPLICATE_WILD_IGNORE_TABLE,
5918 5919 5920 5921 5922 5923
   "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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5924
   0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5925 5926
  {"safe-mode", OPT_SAFE, "Skip some optimize stages (for testing).",
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5927
  {"safe-user-create", 0,
5928
   "Don't allow new user creation by the user who has no write privileges to the mysql.user table.",
5929
   &opt_safe_user_create, &opt_safe_user_create, 0, GET_BOOL,
5930
   NO_ARG, 0, 0, 0, 0, 0, 0},
5931
  {"show-slave-auth-info", 0,
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5932
   "Show user and password in SHOW SLAVE HOSTS on this master.",
5933
   &opt_show_slave_auth_info, &opt_show_slave_auth_info, 0,
5934
   GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
5935
#ifndef DISABLE_GRANT_OPTIONS
5936
  {"skip-grant-tables", 0,
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5937
   "Start without grant tables. This gives all users FULL ACCESS to all tables.",
5938
   &opt_noacl, &opt_noacl, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
5939
   0},
5940
#endif
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5941 5942
  {"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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5943
  {"skip-new", OPT_SKIP_NEW, "Don't use new, possibly wrong routines.",
5944
   0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
5945
  {"skip-slave-start", 0,
5946 5947
   "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},
5948
  {"skip-stack-trace", OPT_SKIP_STACK_TRACE,
5949
   "Don't print a stack trace on failure.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
5950 5951
   0, 0, 0, 0},
  {"skip-thread-priority", OPT_SKIP_PRIOR,
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Konstantin Osipov committed
5952 5953 5954
   "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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5955
#ifdef HAVE_REPLICATION
5956
  {"sporadic-binlog-dump-fail", 0,
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5957
   "Option used by mysql-test for debugging and testing of replication.",
5958 5959
   &opt_sporadic_binlog_dump_fail,
   &opt_sporadic_binlog_dump_fail, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0,
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5960 5961
   0},
#endif /* HAVE_REPLICATION */
5962
#ifdef HAVE_OPENSSL
5963 5964
  {"ssl", 0,
   "Enable SSL for connection (automatically enabled with other flags).",
5965
   &opt_use_ssl, &opt_use_ssl, 0, GET_BOOL, OPT_ARG, 0, 0, 0,
5966
   0, 0, 0},
5967
#endif
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5968
#ifdef __WIN__
5969
  {"standalone", 0,
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5970 5971 5972 5973
  "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.",
5974
   &my_use_symdir, &my_use_symdir, 0, GET_BOOL, NO_ARG,
5975 5976 5977 5978 5979
   /*
     The system call realpath() produces warnings under valgrind and
     purify. These are not suppressed: instead we disable symlinks
     option if compiled with valgrind support.
   */
5980
   IF_PURIFY(0,1), 0, 0, 0, 0, 0},
5981
  {"sysdate-is-now", 0,
5982 5983 5984 5985
   "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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5986
   0, 0, GET_BOOL, NO_ARG, 0, 0, 1, 0, 1, 0},
5987
  {"tc-heuristic-recover", 0,
5988
   "Decision to use in heuristic recover process. Possible values are COMMIT "
5989
   "or ROLLBACK.", &tc_heuristic_recover, &tc_heuristic_recover,
5990
   &tc_heuristic_recover_typelib, GET_ENUM, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
5991 5992 5993 5994 5995
#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.",
5996
   &opt_debug_sync_timeout, 0,
5997 5998
   0, GET_UINT, OPT_ARG, 0, 0, UINT_MAX, 0, 0, 0},
#endif /* defined(ENABLED_DEBUG_SYNC) */
5999
  {"temp-pool", 0,
6000
#if (ENABLE_TEMP_POOL)
6001 6002
   "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.",
6003 6004 6005
#else
   "This option is ignored on this OS.",
#endif
6006
   &use_temp_pool, &use_temp_pool, 0, GET_BOOL, NO_ARG, 1,
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6007
   0, 0, 0, 0, 0},
6008 6009
  {"transaction-isolation", 0,
   "Default transaction isolation level.",
6010 6011
   &global_system_variables.tx_isolation,
   &global_system_variables.tx_isolation, &tx_isolation_typelib,
6012
   GET_ENUM, REQUIRED_ARG, ISO_REPEATABLE_READ, 0, 0, 0, 0, 0},
6013
  {"user", 'u', "Run mysqld daemon as user.", 0, 0, 0, GET_STR, REQUIRED_ARG,
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unknown committed
6014
   0, 0, 0, 0, 0, 0},
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Staale Smedseng committed
6015
  {"verbose", 'v', "Used with --help option for detailed help.",
6016
   &opt_verbose, &opt_verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
6017
  {"version", 'V', "Output version information and exit.", 0, 0, 0, GET_NO_ARG,
6018
   NO_ARG, 0, 0, 0, 0, 0, 0},
6019
  {"plugin-load", 0,
6020
   "Optional semicolon-separated list of plugins to load, where each plugin is "
6021 6022
   "identified as name=library, where name is the plugin name and library "
   "is the plugin library in plugin_dir.",
6023
   &opt_plugin_load, &opt_plugin_load, 0,
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6024
   GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
6025
  {"table_cache", 0, "Deprecated; use --table-open-cache instead.",
6026
   &table_cache_size, &table_cache_size, 0, GET_ULONG,
6027
   REQUIRED_ARG, TABLE_OPEN_CACHE_DEFAULT, 1, 512*1024L, 0, 1, 0},
6028
  {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
6029
};
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6030

6031

6032
static int show_queries(THD *thd, SHOW_VAR *var, char *buff)
6033
{
6034
  var->type= SHOW_LONGLONG;
6035 6036 6037 6038
  var->value= (char *)&thd->query_id;
  return 0;
}

6039

6040
static int show_net_compression(THD *thd, SHOW_VAR *var, char *buff)
6041
{
6042
  var->type= SHOW_MY_BOOL;
6043 6044 6045 6046
  var->value= (char *)&thd->net.compress;
  return 0;
}

6047
static int show_starttime(THD *thd, SHOW_VAR *var, char *buff)
6048
{
6049
  var->type= SHOW_LONG;
6050
  var->value= buff;
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6051
  *((long *)buff)= (long) (thd->query_start() - server_start_time);
6052 6053 6054
  return 0;
}

6055
#ifdef ENABLED_PROFILING
6056 6057 6058 6059 6060 6061 6062
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;
}
6063
#endif
6064

6065
#ifdef HAVE_REPLICATION
6066
static int show_rpl_status(THD *thd, SHOW_VAR *var, char *buff)
6067
{
6068
  var->type= SHOW_CHAR;
6069 6070 6071 6072
  var->value= const_cast<char*>(rpl_status_type[(int)rpl_status]);
  return 0;
}

6073
static int show_slave_running(THD *thd, SHOW_VAR *var, char *buff)
6074
{
6075
  var->type= SHOW_MY_BOOL;
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6076
  mysql_mutex_lock(&LOCK_active_mi);
6077
  var->value= buff;
6078 6079
  *((my_bool *)buff)= (my_bool) (active_mi && 
                                 active_mi->slave_running == MYSQL_SLAVE_RUN_CONNECT &&
6080
                                 active_mi->rli.slave_running);
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6081
  mysql_mutex_unlock(&LOCK_active_mi);
6082 6083 6084
  return 0;
}

6085
static int show_slave_retried_trans(THD *thd, SHOW_VAR *var, char *buff)
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{
  /*
    TODO: with multimaster, have one such counter per line in
    SHOW SLAVE STATUS, and have the sum over all lines here.
  */
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6091
  mysql_mutex_lock(&LOCK_active_mi);
6092 6093
  if (active_mi)
  {
6094
    var->type= SHOW_LONG;
6095
    var->value= buff;
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6096
    mysql_mutex_lock(&active_mi->rli.data_lock);
6097
    *((long *)buff)= (long)active_mi->rli.retried_trans;
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6098
    mysql_mutex_unlock(&active_mi->rli.data_lock);
6099 6100
  }
  else
6101
    var->type= SHOW_UNDEF;
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6102
  mysql_mutex_unlock(&LOCK_active_mi);
6103 6104
  return 0;
}
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6105 6106 6107

static int show_slave_received_heartbeats(THD *thd, SHOW_VAR *var, char *buff)
{
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6108
  mysql_mutex_lock(&LOCK_active_mi);
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  if (active_mi)
  {
    var->type= SHOW_LONGLONG;
    var->value= buff;
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6113
    mysql_mutex_lock(&active_mi->rli.data_lock);
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6114
    *((longlong *)buff)= active_mi->received_heartbeats;
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6115
    mysql_mutex_unlock(&active_mi->rli.data_lock);
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  }
  else
    var->type= SHOW_UNDEF;
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6119
  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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6125
  mysql_mutex_lock(&LOCK_active_mi);
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  if (active_mi)
  {
    var->type= SHOW_CHAR;
    var->value= buff;
6130
    sprintf(buff, "%.3f", active_mi->heartbeat_period);
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  }
  else
    var->type= SHOW_UNDEF;
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6134
  mysql_mutex_unlock(&LOCK_active_mi);
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  return 0;
}


6139 6140
#endif /* HAVE_REPLICATION */

6141
static int show_open_tables(THD *thd, SHOW_VAR *var, char *buff)
6142
{
6143
  var->type= SHOW_LONG;
6144 6145 6146 6147 6148
  var->value= buff;
  *((long *)buff)= (long)cached_open_tables();
  return 0;
}

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static int show_prepared_stmt_count(THD *thd, SHOW_VAR *var, char *buff)
{
  var->type= SHOW_LONG;
  var->value= buff;
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6153
  mysql_mutex_lock(&LOCK_prepared_stmt_count);
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6154
  *((long *)buff)= (long)prepared_stmt_count;
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6155
  mysql_mutex_unlock(&LOCK_prepared_stmt_count);
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  return 0;
}

6159
static int show_table_definitions(THD *thd, SHOW_VAR *var, char *buff)
6160
{
6161
  var->type= SHOW_LONG;
6162 6163 6164 6165 6166
  var->value= buff;
  *((long *)buff)= (long)cached_table_definitions();
  return 0;
}

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6167
#if defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY)
6168
/* Functions relying on CTX */
6169
static int show_ssl_ctx_sess_accept(THD *thd, SHOW_VAR *var, char *buff)
6170
{
6171
  var->type= SHOW_LONG;
6172 6173 6174 6175 6176 6177
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept(ssl_acceptor_fd->ssl_context));
  return 0;
}

6178
static int show_ssl_ctx_sess_accept_good(THD *thd, SHOW_VAR *var, char *buff)
6179
{
6180
  var->type= SHOW_LONG;
6181 6182 6183 6184 6185 6186
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

6187
static int show_ssl_ctx_sess_connect_good(THD *thd, SHOW_VAR *var, char *buff)
6188
{
6189
  var->type= SHOW_LONG;
6190 6191 6192 6193 6194 6195
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_good(ssl_acceptor_fd->ssl_context));
  return 0;
}

6196
static int show_ssl_ctx_sess_accept_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
6197
{
6198
  var->type= SHOW_LONG;
6199 6200 6201 6202 6203 6204
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

6205
static int show_ssl_ctx_sess_connect_renegotiate(THD *thd, SHOW_VAR *var, char *buff)
6206
{
6207
  var->type= SHOW_LONG;
6208 6209 6210 6211 6212 6213
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd->ssl_context));
  return 0;
}

6214
static int show_ssl_ctx_sess_cb_hits(THD *thd, SHOW_VAR *var, char *buff)
6215
{
6216
  var->type= SHOW_LONG;
6217 6218 6219 6220 6221 6222
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cb_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

6223
static int show_ssl_ctx_sess_hits(THD *thd, SHOW_VAR *var, char *buff)
6224
{
6225
  var->type= SHOW_LONG;
6226 6227 6228 6229 6230 6231
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_hits(ssl_acceptor_fd->ssl_context));
  return 0;
}

6232
static int show_ssl_ctx_sess_cache_full(THD *thd, SHOW_VAR *var, char *buff)
6233
{
6234
  var->type= SHOW_LONG;
6235 6236 6237 6238 6239 6240
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_cache_full(ssl_acceptor_fd->ssl_context));
  return 0;
}

6241
static int show_ssl_ctx_sess_misses(THD *thd, SHOW_VAR *var, char *buff)
6242
{
6243
  var->type= SHOW_LONG;
6244 6245 6246 6247 6248 6249
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_misses(ssl_acceptor_fd->ssl_context));
  return 0;
}

6250
static int show_ssl_ctx_sess_timeouts(THD *thd, SHOW_VAR *var, char *buff)
6251
{
6252
  var->type= SHOW_LONG;
6253 6254 6255 6256 6257 6258
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context));
  return 0;
}

6259
static int show_ssl_ctx_sess_number(THD *thd, SHOW_VAR *var, char *buff)
6260
{
6261
  var->type= SHOW_LONG;
6262 6263 6264 6265 6266 6267
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context));
  return 0;
}

6268
static int show_ssl_ctx_sess_connect(THD *thd, SHOW_VAR *var, char *buff)
6269
{
6270
  var->type= SHOW_LONG;
6271 6272 6273 6274 6275 6276
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context));
  return 0;
}

6277
static int show_ssl_ctx_sess_get_cache_size(THD *thd, SHOW_VAR *var, char *buff)
6278
{
6279
  var->type= SHOW_LONG;
6280 6281 6282 6283 6284 6285
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context));
  return 0;
}

6286
static int show_ssl_ctx_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
6287
{
6288
  var->type= SHOW_LONG;
6289 6290 6291 6292 6293 6294
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context));
  return 0;
}

6295
static int show_ssl_ctx_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
6296
{
6297
  var->type= SHOW_LONG;
6298 6299 6300 6301 6302 6303
  var->value= buff;
  *((long *)buff)= (!ssl_acceptor_fd ? 0 :
                     SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context));
  return 0;
}

6304
static int show_ssl_ctx_get_session_cache_mode(THD *thd, SHOW_VAR *var, char *buff)
6305
{
6306
  var->type= SHOW_CHAR;
6307
  if (!ssl_acceptor_fd)
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6308
    var->value= const_cast<char*>("NONE");
6309 6310 6311 6312
  else
    switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
    {
    case SSL_SESS_CACHE_OFF:
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6313
      var->value= const_cast<char*>("OFF"); break;
6314
    case SSL_SESS_CACHE_CLIENT:
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6315
      var->value= const_cast<char*>("CLIENT"); break;
6316
    case SSL_SESS_CACHE_SERVER:
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6317
      var->value= const_cast<char*>("SERVER"); break;
6318
    case SSL_SESS_CACHE_BOTH:
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6319
      var->value= const_cast<char*>("BOTH"); break;
6320
    case SSL_SESS_CACHE_NO_AUTO_CLEAR:
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6321
      var->value= const_cast<char*>("NO_AUTO_CLEAR"); break;
6322
    case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
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6323
      var->value= const_cast<char*>("NO_INTERNAL_LOOKUP"); break;
6324
    default:
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6325
      var->value= const_cast<char*>("Unknown"); break;
6326 6327 6328 6329
    }
  return 0;
}

6330 6331 6332 6333 6334 6335 6336
/*
   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.
 */
6337
static int show_ssl_get_version(THD *thd, SHOW_VAR *var, char *buff)
6338
{
6339
  var->type= SHOW_CHAR;
6340 6341 6342
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    var->value= const_cast<char*>(SSL_get_version((SSL*) thd->net.vio->ssl_arg));
  else
6343
    var->value= (char *)"";
6344 6345 6346
  return 0;
}

6347
static int show_ssl_session_reused(THD *thd, SHOW_VAR *var, char *buff)
6348
{
6349
  var->type= SHOW_LONG;
6350
  var->value= buff;
6351 6352 6353 6354
  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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6355
  return 0;
6356 6357
}

6358
static int show_ssl_get_default_timeout(THD *thd, SHOW_VAR *var, char *buff)
6359
{
6360
  var->type= SHOW_LONG;
6361
  var->value= buff;
6362 6363 6364 6365
  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;
6366 6367 6368
  return 0;
}

6369
static int show_ssl_get_verify_mode(THD *thd, SHOW_VAR *var, char *buff)
6370
{
6371
  var->type= SHOW_LONG;
6372
  var->value= buff;
6373 6374 6375 6376
  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;
6377 6378 6379
  return 0;
}

6380
static int show_ssl_get_verify_depth(THD *thd, SHOW_VAR *var, char *buff)
6381
{
6382
  var->type= SHOW_LONG;
6383
  var->value= buff;
6384 6385 6386 6387
  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;
6388 6389 6390
  return 0;
}

6391
static int show_ssl_get_cipher(THD *thd, SHOW_VAR *var, char *buff)
6392
{
6393
  var->type= SHOW_CHAR;
6394 6395 6396
  if( thd->vio_ok() && thd->net.vio->ssl_arg )
    var->value= const_cast<char*>(SSL_get_cipher((SSL*) thd->net.vio->ssl_arg));
  else
6397
    var->value= (char *)"";
6398 6399 6400
  return 0;
}

6401
static int show_ssl_get_cipher_list(THD *thd, SHOW_VAR *var, char *buff)
6402
{
6403
  var->type= SHOW_CHAR;
6404
  var->value= buff;
6405
  if (thd->vio_ok() && thd->net.vio->ssl_arg)
6406 6407 6408
  {
    int i;
    const char *p;
6409 6410 6411
    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++)
6412
    {
6413
      buff= strnmov(buff, p, end-buff-1);
6414 6415 6416 6417 6418 6419 6420 6421 6422
      *buff++= ':';
    }
    if (i)
      buff--;
  }
  *buff=0;
  return 0;
}

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6423
#endif /* HAVE_OPENSSL && !EMBEDDED_LIBRARY */
6424

6425

6426 6427 6428 6429
/*
  Variables shown by SHOW STATUS in alphabetical order
*/

6430
SHOW_VAR status_vars[]= {
6431 6432
  {"Aborted_clients",          (char*) &aborted_threads,        SHOW_LONG},
  {"Aborted_connects",         (char*) &aborted_connects,       SHOW_LONG},
6433 6434
  {"Binlog_cache_disk_use",    (char*) &binlog_cache_disk_use,  SHOW_LONG},
  {"Binlog_cache_use",         (char*) &binlog_cache_use,       SHOW_LONG},
6435 6436
  {"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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6437
  {"Com",                      (char*) com_status_vars, SHOW_ARRAY},
6438
  {"Compression",              (char*) &show_net_compression, SHOW_FUNC},
6439
  {"Connections",              (char*) &thread_id,              SHOW_LONG_NOFLUSH},
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6440
  {"Created_tmp_disk_tables",  (char*) offsetof(STATUS_VAR, created_tmp_disk_tables), SHOW_LONG_STATUS},
6441
  {"Created_tmp_files",	       (char*) &my_tmp_file_created,	SHOW_LONG},
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6442
  {"Created_tmp_tables",       (char*) offsetof(STATUS_VAR, created_tmp_tables), SHOW_LONG_STATUS},
6443
  {"Delayed_errors",           (char*) &delayed_insert_errors,  SHOW_LONG},
6444
  {"Delayed_insert_threads",   (char*) &delayed_insert_threads, SHOW_LONG_NOFLUSH},
6445
  {"Delayed_writes",           (char*) &delayed_insert_writes,  SHOW_LONG},
6446
  {"Flush_commands",           (char*) &refresh_version,        SHOW_LONG_NOFLUSH},
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6447 6448 6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461
  {"Handler_commit",           (char*) offsetof(STATUS_VAR, ha_commit_count), SHOW_LONG_STATUS},
  {"Handler_delete",           (char*) offsetof(STATUS_VAR, ha_delete_count), SHOW_LONG_STATUS},
  {"Handler_discover",         (char*) offsetof(STATUS_VAR, ha_discover_count), SHOW_LONG_STATUS},
  {"Handler_prepare",          (char*) offsetof(STATUS_VAR, ha_prepare_count),  SHOW_LONG_STATUS},
  {"Handler_read_first",       (char*) offsetof(STATUS_VAR, ha_read_first_count), SHOW_LONG_STATUS},
  {"Handler_read_key",         (char*) offsetof(STATUS_VAR, ha_read_key_count), SHOW_LONG_STATUS},
  {"Handler_read_next",        (char*) offsetof(STATUS_VAR, ha_read_next_count), SHOW_LONG_STATUS},
  {"Handler_read_prev",        (char*) offsetof(STATUS_VAR, ha_read_prev_count), SHOW_LONG_STATUS},
  {"Handler_read_rnd",         (char*) offsetof(STATUS_VAR, ha_read_rnd_count), SHOW_LONG_STATUS},
  {"Handler_read_rnd_next",    (char*) offsetof(STATUS_VAR, ha_read_rnd_next_count), SHOW_LONG_STATUS},
  {"Handler_rollback",         (char*) offsetof(STATUS_VAR, ha_rollback_count), SHOW_LONG_STATUS},
  {"Handler_savepoint",        (char*) offsetof(STATUS_VAR, ha_savepoint_count), SHOW_LONG_STATUS},
  {"Handler_savepoint_rollback",(char*) offsetof(STATUS_VAR, ha_savepoint_rollback_count), SHOW_LONG_STATUS},
  {"Handler_update",           (char*) offsetof(STATUS_VAR, ha_update_count), SHOW_LONG_STATUS},
  {"Handler_write",            (char*) offsetof(STATUS_VAR, ha_write_count), SHOW_LONG_STATUS},
6462
  {"Key_blocks_not_flushed",   (char*) offsetof(KEY_CACHE, global_blocks_changed), SHOW_KEY_CACHE_LONG},
6463 6464
  {"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},
6465 6466 6467 6468
  {"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},
6469
  {"Last_query_cost",          (char*) offsetof(STATUS_VAR, last_query_cost), SHOW_DOUBLE_STATUS},
6470
  {"Max_used_connections",     (char*) &max_used_connections,  SHOW_LONG},
6471 6472 6473
  {"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},
6474 6475
  {"Open_table_definitions",   (char*) &show_table_definitions, SHOW_FUNC},
  {"Open_tables",              (char*) &show_open_tables,       SHOW_FUNC},
6476
  {"Opened_files",             (char*) &my_file_total_opened, SHOW_LONG_NOFLUSH},
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6477
  {"Opened_tables",            (char*) offsetof(STATUS_VAR, opened_tables), SHOW_LONG_STATUS},
6478
  {"Opened_table_definitions", (char*) offsetof(STATUS_VAR, opened_shares), SHOW_LONG_STATUS},
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unknown committed
6479
  {"Prepared_stmt_count",      (char*) &show_prepared_stmt_count, SHOW_FUNC},
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6480
#ifdef HAVE_QUERY_CACHE
6481 6482
  {"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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6483
  {"Qcache_hits",              (char*) &query_cache.hits,       SHOW_LONG},
6484
  {"Qcache_inserts",           (char*) &query_cache.inserts,    SHOW_LONG},
6485
  {"Qcache_lowmem_prunes",     (char*) &query_cache.lowmem_prunes, SHOW_LONG},
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6486
  {"Qcache_not_cached",        (char*) &query_cache.refused,    SHOW_LONG},
6487 6488
  {"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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6489
#endif /*HAVE_QUERY_CACHE*/
6490
  {"Queries",                  (char*) &show_queries,            SHOW_FUNC},
6491
  {"Questions",                (char*) offsetof(STATUS_VAR, questions), SHOW_LONG_STATUS},
6492 6493 6494
#ifdef HAVE_REPLICATION
  {"Rpl_status",               (char*) &show_rpl_status,          SHOW_FUNC},
#endif
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Merge  
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6495 6496 6497 6498 6499
  {"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},
6500
  {"Slave_open_temp_tables",   (char*) &slave_open_temp_tables, SHOW_LONG},
6501 6502
#ifdef HAVE_REPLICATION
  {"Slave_retried_transactions",(char*) &show_slave_retried_trans, SHOW_FUNC},
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Andrei Elkin committed
6503 6504
  {"Slave_heartbeat_period",   (char*) &show_heartbeat_period, SHOW_FUNC},
  {"Slave_received_heartbeats",(char*) &show_slave_received_heartbeats, SHOW_FUNC},
6505 6506
  {"Slave_running",            (char*) &show_slave_running,     SHOW_FUNC},
#endif
6507
  {"Slow_launch_threads",      (char*) &slow_launch_threads,    SHOW_LONG},
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6508 6509 6510 6511 6512
  {"Slow_queries",             (char*) offsetof(STATUS_VAR, long_query_count), SHOW_LONG_STATUS},
  {"Sort_merge_passes",	       (char*) offsetof(STATUS_VAR, filesort_merge_passes), SHOW_LONG_STATUS},
  {"Sort_range",	       (char*) offsetof(STATUS_VAR, filesort_range_count), SHOW_LONG_STATUS},
  {"Sort_rows",		       (char*) offsetof(STATUS_VAR, filesort_rows), SHOW_LONG_STATUS},
  {"Sort_scan",		       (char*) offsetof(STATUS_VAR, filesort_scan_count), SHOW_LONG_STATUS},
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6513
#ifdef HAVE_OPENSSL
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6514
#ifndef EMBEDDED_LIBRARY
6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537
  {"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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6538
#endif
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6539
#endif /* HAVE_OPENSSL */
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6540 6541
  {"Table_locks_immediate",    (char*) &locks_immediate,        SHOW_LONG},
  {"Table_locks_waited",       (char*) &locks_waited,           SHOW_LONG},
6542
#ifdef HAVE_MMAP
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6543 6544 6545
  {"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},
6546
#endif
6547
  {"Threads_cached",           (char*) &cached_thread_count,    SHOW_LONG_NOFLUSH},
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Konstantin Osipov committed
6548
  {"Threads_connected",        (char*) &connection_count,       SHOW_INT},
6549 6550
  {"Threads_created",	       (char*) &thread_created,		SHOW_LONG_NOFLUSH},
  {"Threads_running",          (char*) &thread_running,         SHOW_INT},
6551
  {"Uptime",                   (char*) &show_starttime,         SHOW_FUNC},
6552
#ifdef ENABLED_PROFILING
6553
  {"Uptime_since_flush_status",(char*) &show_flushstatustime,   SHOW_FUNC},
6554
#endif
6555
  {NullS, NullS, SHOW_LONG}
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6556 6557
};

Marc Alff's avatar
Marc Alff committed
6558
bool add_terminator(DYNAMIC_ARRAY *options)
6559 6560
{
  my_option empty_element= {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0};
Marc Alff's avatar
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6561
  return insert_dynamic(options, (uchar *)&empty_element);
6562 6563
}

6564
#ifndef EMBEDDED_LIBRARY
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6565 6566
static void print_version(void)
{
6567
  set_server_version();
6568

6569 6570
  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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6571 6572
}

6573 6574 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 6594 6595 6596 6597 6598 6599 6600 6601 6602 6603 6604
/** 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);
Marc Alff's avatar
Marc Alff committed
6605
  sys_var_add_options(&all_options, sys_var::PARSE_EARLY);
6606 6607
  add_plugin_options(&all_options, &mem_root);
  sort_dynamic(&all_options, (qsort_cmp) option_cmp);
Marc Alff's avatar
Marc Alff committed
6608
  add_terminator(&all_options);
6609 6610 6611 6612 6613 6614 6615 6616

  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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unknown committed
6617 6618
static void usage(void)
{
6619
  DBUG_ENTER("usage");
6620
  if (!(default_charset_info= get_charset_by_csname(default_character_set_name,
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6621 6622 6623 6624 6625
					           MY_CS_PRIMARY,
						   MYF(MY_WME))))
    exit(1);
  if (!default_collation_name)
    default_collation_name= (char*) default_charset_info->name;
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6626
  print_version();
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6627
  puts("\
Staale Smedseng's avatar
Staale Smedseng committed
6628
Copyright (C) 2000-2008 MySQL AB, by Monty and others.\n\
6629
Copyright (C) 2008,2009 Sun Microsystems, Inc.\n\
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6630
This software comes with ABSOLUTELY NO WARRANTY. This is free software,\n\
6631
and you are welcome to modify and redistribute it under the GPL license\n\n\
Staale Smedseng's avatar
Staale Smedseng committed
6632
Starts the MySQL database server.\n");
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6633 6634

  printf("Usage: %s [OPTIONS]\n", my_progname);
6635
  if (!opt_verbose)
Staale Smedseng's avatar
Staale Smedseng committed
6636
    puts("\nFor more help options (several pages), use mysqld --verbose --help.");
6637 6638
  else
  {
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6639 6640
#ifdef __WIN__
  puts("NT and Win32 specific options:\n\
Staale Smedseng's avatar
Staale Smedseng committed
6641 6642 6643 6644 6645 6646 6647 6648
  --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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6649
");
6650
  puts("");
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6651
#endif
6652
  print_defaults(MYSQL_CONFIG_NAME,load_default_groups);
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6653 6654
  puts("");
  set_ports();
6655

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6656
  /* Print out all the options including plugin supplied options */
6657
  print_help();
6658

6659 6660 6661 6662 6663 6664 6665
  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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6666
  puts("\n\
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6667
To see what values a running MySQL server is using, type\n\
6668
'mysqladmin variables' instead of 'mysqld --verbose --help'.");
6669
  }
6670
  DBUG_VOID_RETURN;
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6671
}
6672
#endif /*!EMBEDDED_LIBRARY*/
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6673

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6674
/**
6675
  Initialize MySQL global variables to default values.
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6676

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6677
  @note
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6678 6679 6680 6681
    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.
unknown's avatar
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6682

6683
    We don't need to set variables refered to in my_long_options
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6684 6685
    as these are initialized by my_getopt.
*/
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6686

6687
static int mysql_init_variables(void)
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6688 6689 6690 6691
{
  /* Things reset to zero */
  opt_skip_slave_start= opt_reckless_slave = 0;
  mysql_home[0]= pidfile_name[0]= log_error_file[0]= 0;
6692
  myisam_test_invalid_symlink= test_if_data_home_dir;
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6693
  opt_log= opt_slow_log= 0;
6694
  opt_bin_log= 0;
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6695
  opt_disable_networking= opt_skip_show_db=0;
6696
  opt_skip_name_resolve= 0;
6697
  opt_ignore_builtin_innodb= 0;
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Merge  
unknown committed
6698 6699
  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 !
6700 6701
  opt_secure_auth= 0;
  opt_bootstrap= opt_myisam_log= 0;
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6702 6703 6704 6705 6706 6707 6708 6709 6710
  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;
6711
  opt_using_transactions= 0;
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6712 6713
  abort_loop= select_thread_in_use= signal_thread_in_use= 0;
  ready_to_exit= shutdown_in_progress= grant_option= 0;
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Merge  
unknown committed
6714
  aborted_threads= aborted_connects= 0;
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6715 6716
  delayed_insert_threads= delayed_insert_writes= delayed_rows_in_use= 0;
  delayed_insert_errors= thread_created= 0;
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Merge  
unknown committed
6717
  specialflag= 0;
6718
  binlog_cache_use=  binlog_cache_disk_use= 0;
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6719 6720
  max_used_connections= slow_launch_threads = 0;
  mysqld_user= mysqld_chroot= opt_init_file= opt_bin_logname = 0;
6721
  prepared_stmt_count= 0;
6722
  mysqld_unix_port= opt_mysql_tmpdir= my_bind_addr_str= NullS;
6723
  bzero((uchar*) &mysql_tmpdir_list, sizeof(mysql_tmpdir_list));
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Merge  
unknown committed
6724
  bzero((char *) &global_status_var, sizeof(global_status_var));
6725
  opt_large_pages= 0;
6726
  opt_super_large_pages= 0;
6727 6728 6729
#if defined(ENABLED_DEBUG_SYNC)
  opt_debug_sync_timeout= 0;
#endif /* defined(ENABLED_DEBUG_SYNC) */
6730
  key_map_full.set_all();
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6731

6732 6733 6734 6735 6736
  /* 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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6737
  character_set_filesystem= &my_charset_bin;
6738

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6739 6740 6741 6742 6743
  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;
6744
  lc_messages_dir_ptr= lc_messages_dir;
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6745 6746
  protocol_version= PROTOCOL_VERSION;
  what_to_log= ~ (1L << (uint) COM_TIME);
6747
  refresh_version= 1L;	/* Increments on each reload */
6748
  global_query_id= thread_id= 1L;
6749
  my_atomic_rwlock_init(&global_query_id_lock);
6750
  my_atomic_rwlock_init(&thread_running_lock);
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6751 6752 6753
  strmov(server_version, MYSQL_SERVER_VERSION);
  threads.empty();
  thread_cache.empty();
6754
  key_caches.empty();
unknown's avatar
unknown committed
6755
  if (!(dflt_key_cache= get_or_create_key_cache(default_key_cache_base.str,
6756
                                                default_key_cache_base.length)))
6757 6758 6759 6760
  {
    sql_print_error("Cannot allocate the keycache");
    return 1;
  }
6761 6762
  /* set key_cache_hash.default_value = dflt_key_cache */
  multi_keycache_init();
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unknown committed
6763 6764

  /* Set directory paths */
6765 6766 6767
  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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unknown committed
6768 6769
  /* Replication parameters */
  master_info_file= (char*) "master.info",
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6770
    relay_log_info_file= (char*) "relay-log.info";
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6771 6772 6773 6774 6775
  report_user= report_password = report_host= 0;	/* TO BE DELETED */
  opt_relay_logname= opt_relaylog_index_name= 0;

  /* Variables in libraries */
  charsets_dir= 0;
6776
  default_character_set_name= (char*) MYSQL_DEFAULT_CHARSET_NAME;
6777
  default_collation_name= compiled_default_collation_name;
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6778
  character_set_filesystem_name= (char*) "binary";
6779
  lc_messages= (char*) "en_US";
6780
  lc_time_names_name= (char*) "en_US";
6781
  
unknown's avatar
unknown committed
6782 6783 6784 6785 6786 6787
  /* 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);
6788 6789
#ifdef ENABLED_PROFILING
    have_profiling = SHOW_OPTION_YES;
6790
#else
6791
    have_profiling = SHOW_OPTION_NO;
6792
#endif
6793

unknown's avatar
unknown committed
6794
#ifdef HAVE_OPENSSL
6795
  have_ssl=SHOW_OPTION_YES;
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6796
#else
6797
  have_ssl=SHOW_OPTION_NO;
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6798
#endif
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6799
#ifdef HAVE_BROKEN_REALPATH
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6800 6801 6802 6803
  have_symlink=SHOW_OPTION_NO;
#else
  have_symlink=SHOW_OPTION_YES;
#endif
6804 6805 6806 6807 6808
#ifdef HAVE_DLOPEN
  have_dlopen=SHOW_OPTION_YES;
#else
  have_dlopen=SHOW_OPTION_NO;
#endif
unknown's avatar
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6809 6810 6811 6812 6813
#ifdef HAVE_QUERY_CACHE
  have_query_cache=SHOW_OPTION_YES;
#else
  have_query_cache=SHOW_OPTION_NO;
#endif
6814 6815 6816 6817 6818 6819 6820 6821 6822 6823
#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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unknown committed
6824 6825 6826 6827 6828 6829
#ifdef HAVE_CRYPT
  have_crypt=SHOW_OPTION_YES;
#else
  have_crypt=SHOW_OPTION_NO;
#endif
#ifdef HAVE_COMPRESS
6830
  have_compress= SHOW_OPTION_YES;
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6831
#else
6832
  have_compress= SHOW_OPTION_NO;
unknown's avatar
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6833 6834 6835 6836 6837 6838
#endif
#ifdef HAVE_LIBWRAP
  libwrapName= NullS;
#endif
#ifdef HAVE_OPENSSL
  des_key_file = 0;
Konstantin Osipov's avatar
Konstantin Osipov committed
6839
#ifndef EMBEDDED_LIBRARY
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6840
  ssl_acceptor_fd= 0;
Konstantin Osipov's avatar
Konstantin Osipov committed
6841 6842
#endif /* ! EMBEDDED_LIBRARY */
#endif /* HAVE_OPENSSL */
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unknown committed
6843 6844 6845 6846
#ifdef HAVE_SMEM
  shared_memory_base_name= default_shared_memory_base_name;
#endif

6847 6848
#if defined(__WIN__)
  /* Allow Win32 users to move MySQL anywhere */
unknown's avatar
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6849 6850
  {
    char prg_dev[LIBLEN];
6851 6852 6853 6854 6855 6856 6857 6858 6859 6860 6861
    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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6862 6863 6864 6865 6866
    strcat(prg_dev,"/../");			// Remove 'bin' to get base dir
    cleanup_dirname(mysql_home,prg_dev);
  }
#else
  const char *tmpenv;
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6867
  if (!(tmpenv = getenv("MY_BASEDIR_VERSION")))
unknown's avatar
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6868
    tmpenv = DEFAULT_MYSQL_HOME;
unknown's avatar
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6869
  (void) strmake(mysql_home, tmpenv, sizeof(mysql_home)-1);
unknown's avatar
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6870
#endif
6871
  return 0;
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6872 6873
}

6874 6875 6876 6877
my_bool
mysqld_get_one_option(int optid,
                      const struct my_option *opt __attribute__((unused)),
                      char *argument)
unknown's avatar
unknown committed
6878
{
6879 6880
  switch(optid) {
  case '#':
6881
#ifndef DBUG_OFF
unknown's avatar
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6882
    DBUG_SET_INITIAL(argument ? argument : default_dbug_option);
6883 6884 6885 6886
#endif
    opt_endinfo=1;				/* unireg: memory allocation */
    break;
  case 'a':
6887
    global_system_variables.sql_mode= MODE_ANSI;
unknown's avatar
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6888
    global_system_variables.tx_isolation= ISO_SERIALIZABLE;
6889 6890 6891 6892
    break;
  case 'b':
    strmake(mysql_home,argument,sizeof(mysql_home)-1);
    break;
6893
  case 'C':
6894 6895
    if (default_collation_name == compiled_default_collation_name)
      default_collation_name= 0;
6896
    break;
6897
  case 'l':
6898
    WARN_DEPRECATED(NULL, 7, 0, "--log", "'--general-log'/'--general-log-file'");
6899 6900 6901 6902
    opt_log=1;
    break;
  case 'h':
    strmake(mysql_real_data_home,argument, sizeof(mysql_real_data_home)-1);
6903
    /* Correct pointer set by my_getopt (for embedded library) */
6904
    mysql_real_data_home_ptr= mysql_real_data_home;
6905
    break;
6906
  case 'u':
6907
    if (!mysqld_user || !strcmp(mysqld_user, argument))
unknown's avatar
unknown committed
6908
      mysqld_user= argument;
6909
    else
6910
      sql_print_warning("Ignoring user change to '%s' because the user was set to '%s' earlier on the command line\n", argument, mysqld_user);
6911
    break;
6912
  case 'L':
6913
    strmake(lc_messages_dir, argument, sizeof(lc_messages_dir)-1);
6914
    lc_messages_dir_ptr= lc_messages_dir;
6915
    break;
6916 6917
  case OPT_BINLOG_FORMAT:
    binlog_format_used= true;
6918
    break;
6919
#include <sslopt-case.h>
6920
#ifndef EMBEDDED_LIBRARY
6921 6922 6923
  case 'V':
    print_version();
    exit(0);
6924
#endif /*EMBEDDED_LIBRARY*/
6925 6926 6927 6928 6929 6930 6931 6932
  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;
6933 6934 6935 6936 6937 6938 6939 6940
  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:
6941
    opt_bin_log= test(argument != disabled_my_option);
6942
    break;
unknown's avatar
SCRUM  
unknown committed
6943
#ifdef HAVE_REPLICATION
6944
  case (int)OPT_REPLICATE_IGNORE_DB:
6945
  {
6946
    rpl_filter->add_ignore_db(argument);
6947 6948 6949 6950
    break;
  }
  case (int)OPT_REPLICATE_DO_DB:
  {
6951
    rpl_filter->add_do_db(argument);
6952 6953 6954 6955 6956
    break;
  }
  case (int)OPT_REPLICATE_REWRITE_DB:
  {
    char* key = argument,*p, *val;
6957

6958
    if (!(p= strstr(argument, "->")))
6959
    {
6960 6961
      sql_print_error("Bad syntax in replicate-rewrite-db - missing '->'!\n");
      return 1;
6962
    }
6963
    val= p--;
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unknown committed
6964
    while (my_isspace(mysqld_charset, *p) && p > argument)
6965 6966
      *p-- = 0;
    if (p == argument)
6967
    {
6968 6969
      sql_print_error("Bad syntax in replicate-rewrite-db - empty FROM db!\n");
      return 1;
6970
    }
6971 6972
    *val= 0;
    val+= 2;
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6973
    while (*val && my_isspace(mysqld_charset, *val))
6974 6975
      *val++;
    if (!*val)
6976
    {
6977 6978
      sql_print_error("Bad syntax in replicate-rewrite-db - empty TO db!\n");
      return 1;
6979 6980
    }

6981
    rpl_filter->add_db_rewrite(key, val);
6982 6983 6984
    break;
  }

6985
  case (int)OPT_BINLOG_IGNORE_DB:
6986
  {
6987
    binlog_filter->add_ignore_db(argument);
6988 6989
    break;
  }
6990
  case (int)OPT_BINLOG_DO_DB:
6991
  {
6992
    binlog_filter->add_do_db(argument);
6993 6994
    break;
  }
6995
  case (int)OPT_REPLICATE_DO_TABLE:
6996
  {
6997
    if (rpl_filter->add_do_table(argument))
6998
    {
6999 7000
      sql_print_error("Could not add do table rule '%s'!\n", argument);
      return 1;
7001
    }
7002 7003
    break;
  }
7004
  case (int)OPT_REPLICATE_WILD_DO_TABLE:
7005
  {
7006
    if (rpl_filter->add_wild_do_table(argument))
7007
    {
7008 7009
      sql_print_error("Could not add do table rule '%s'!\n", argument);
      return 1;
7010
    }
7011 7012
    break;
  }
7013
  case (int)OPT_REPLICATE_WILD_IGNORE_TABLE:
7014
  {
7015
    if (rpl_filter->add_wild_ignore_table(argument))
7016
    {
7017 7018
      sql_print_error("Could not add ignore table rule '%s'!\n", argument);
      return 1;
7019
    }
7020 7021
    break;
  }
7022
  case (int)OPT_REPLICATE_IGNORE_TABLE:
7023
  {
7024
    if (rpl_filter->add_ignore_table(argument))
7025
    {
7026 7027
      sql_print_error("Could not add ignore table rule '%s'!\n", argument);
      return 1;
7028
    }
7029 7030
    break;
  }
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7031
#endif /* HAVE_REPLICATION */
7032
  case (int) OPT_SLOW_QUERY_LOG:
7033
    WARN_DEPRECATED(NULL, 7, 0, "--log-slow-queries", "'--slow-query-log'/'--slow-query-log-file'");
7034
    opt_slow_log= 1;
7035
    break;
7036 7037
  case (int) OPT_SKIP_NEW:
    opt_specialflag|= SPECIAL_NO_NEW_FUNC;
7038
    delay_key_write_options= DELAY_KEY_WRITE_NONE;
7039
    myisam_concurrent_insert=0;
7040
    myisam_recover_options= HA_RECOVER_OFF;
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Merge  
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7041
    sp_automatic_privileges=0;
7042
    my_use_symdir=0;
7043
    ha_open_options&= ~(HA_OPEN_ABORT_IF_CRASHED | HA_OPEN_DELAY_KEY_WRITE);
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7044
#ifdef HAVE_QUERY_CACHE
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    query_cache_size=0;
#endif
    break;
  case (int) OPT_SAFE:
    opt_specialflag|= SPECIAL_SAFE_MODE;
7050
    delay_key_write_options= DELAY_KEY_WRITE_NONE;
7051 7052
    myisam_recover_options= HA_RECOVER_DEFAULT;
    ha_open_options&= ~(HA_OPEN_DELAY_KEY_WRITE);
7053 7054 7055
    break;
  case (int) OPT_SKIP_PRIOR:
    opt_specialflag|= SPECIAL_NO_PRIOR;
7056
    sql_print_warning("The --skip-thread-priority startup option is deprecated "
Konstantin Osipov's avatar
Konstantin Osipov committed
7057 7058
                      "and will be removed in MySQL 7.0. This option has no effect "
                      "as the implied behavior is already the default.");
7059
    break;
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  case (int) OPT_SKIP_HOST_CACHE:
    opt_specialflag|= SPECIAL_NO_HOST_CACHE;
    break;
  case (int) OPT_SKIP_RESOLVE:
7064
    opt_skip_name_resolve= 1;
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    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:
    {
7075 7076 7077 7078 7079 7080 7081
      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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7082
      {
7083 7084
        sql_print_error("Can't start server: cannot resolve hostname!");
        return 1;
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7085
      }
7086 7087

      if (res_lst->ai_next)
7088
      {
7089
        sql_print_error("Can't start server: bind-address refers to multiple interfaces!");
7090
        return 1;
7091
      }
7092
      freeaddrinfo(res_lst);
7093 7094
    }
    break;
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  case OPT_CONSOLE:
    if (opt_console)
      opt_error_log= 0;			// Force logs to stdout
    break;
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  case OPT_BOOTSTRAP:
    opt_noacl=opt_bootstrap=1;
    break;
  case OPT_SERVER_ID:
    server_id_supplied = 1;
    break;
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7105
  case OPT_ONE_THREAD:
7106
    thread_handling= SCHEDULER_ONE_THREAD_PER_CONNECTION;
7107
    break;
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7108
  case OPT_LOWER_CASE_TABLE_NAMES:
7109
    lower_case_table_names_used= 1;
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    break;
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#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) */
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  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;
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  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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7147
  }
7148 7149
  return 0;
}
7150

7151

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7152
/** Handle arguments for multiple key caches. */
7153

7154
C_MODE_START
7155

7156
static void*
7157
mysql_getopt_value(const char *keyname, uint key_length,
7158
		   const struct my_option *option, int *error)
7159
{
7160 7161
  if (error)
    *error= 0;
7162 7163
  switch (option->id) {
  case OPT_KEY_BUFFER_SIZE:
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7164
  case OPT_KEY_CACHE_BLOCK_SIZE:
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  case OPT_KEY_CACHE_DIVISION_LIMIT:
  case OPT_KEY_CACHE_AGE_THRESHOLD:
7167
  {
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    KEY_CACHE *key_cache;
7169
    if (!(key_cache= get_or_create_key_cache(keyname, key_length)))
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    {
      if (error)
        *error= EXIT_OUT_OF_MEMORY;
      return 0;
    }
7175 7176
    switch (option->id) {
    case OPT_KEY_BUFFER_SIZE:
7177
      return &key_cache->param_buff_size;
7178
    case OPT_KEY_CACHE_BLOCK_SIZE:
7179
      return &key_cache->param_block_size;
7180
    case OPT_KEY_CACHE_DIVISION_LIMIT:
7181
      return &key_cache->param_division_limit;
7182
    case OPT_KEY_CACHE_AGE_THRESHOLD:
7183
      return &key_cache->param_age_threshold;
7184
    }
7185 7186
  }
  }
7187
  return option->value;
7188 7189
}

7190
static void option_error_reporter(enum loglevel level, const char *format, ...)
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7191
{
7192
  va_list args;
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7193
  va_start(args, format);
7194 7195 7196 7197 7198 7199 7200

  /* 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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7201
  va_end(args);
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7202
}
7203

7204
C_MODE_END
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7205

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7206
/**
Marc Alff's avatar
Marc Alff committed
7207 7208 7209 7210 7211 7212
  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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7213 7214 7215
  @todo
  - FIXME add EXIT_TOO_MANY_ARGUMENTS to "mysys_err.h" and return that code?
*/
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Marc Alff committed
7216
static int get_options(int *argc_ptr, char ***argv_ptr)
7217 7218 7219
{
  int ho_error;

7220
  my_getopt_register_get_addr(mysql_getopt_value);
7221
  my_getopt_error_reporter= option_error_reporter;
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7222

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7223 7224 7225 7226
  /* prepare all_options array */
  my_init_dynamic_array(&all_options, sizeof(my_option),
                        array_elements(my_long_options),
                        array_elements(my_long_options)/4);
7227 7228 7229
  for (my_option *opt= my_long_options;
       opt < my_long_options + array_elements(my_long_options) - 1;
       opt++)
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7230 7231 7232
    insert_dynamic(&all_options, (uchar*) opt);
  sys_var_add_options(&all_options, sys_var::PARSE_NORMAL);
  add_terminator(&all_options);
7233

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7234 7235 7236
  /* Skip unknown options so that they may be processed later by plugins */
  my_getopt_skip_unknown= TRUE;

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7237
  if ((ho_error= handle_options(argc_ptr, argv_ptr, (my_option*)(all_options.buffer),
7238
                                mysqld_get_one_option)))
7239
    return ho_error;
7240 7241 7242 7243

  if (!opt_help)
    delete_dynamic(&all_options);

Marc Alff's avatar
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7244 7245 7246
  /* Add back the program name handle_options removes */
  (*argc_ptr)++;
  (*argv_ptr)--;
7247

7248 7249 7250 7251 7252 7253
  /*
    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.
  */
7254

7255 7256
  if ((opt_log_slow_admin_statements || opt_log_queries_not_using_indexes ||
       opt_log_slow_slave_statements) &&
7257
      !opt_slow_log)
7258
    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");
7259

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  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;
7280

7281 7282 7283 7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297 7298 7299 7300 7301 7302 7303
  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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7304
#if defined(HAVE_BROKEN_REALPATH)
7305 7306 7307 7308 7309 7310 7311 7312 7313 7314
  my_use_symdir=0;
  my_disable_symlinks=1;
  have_symlink=SHOW_OPTION_NO;
#else
  if (!my_use_symdir)
  {
    my_disable_symlinks=1;
    have_symlink=SHOW_OPTION_DISABLED;
  }
#endif
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  if (opt_debugging)
  {
    /* Allow break with SIGINT, no core or stack trace */
    test_flags|= TEST_SIGINT | TEST_NO_STACKTRACE;
    test_flags&= ~TEST_CORE_ON_SIGNAL;
  }
7321
  /* Set global MyISAM variables from delay_key_write_options */
7322
  fix_delay_key_write(0, 0, OPT_GLOBAL);
7323

7324
#ifndef EMBEDDED_LIBRARY
7325 7326
  if (mysqld_chroot)
    set_root(mysqld_chroot);
7327
#else
7328
  thread_handling = SCHEDULER_NO_THREADS;
7329 7330
  max_allowed_packet= global_system_variables.max_allowed_packet;
  net_buffer_length= global_system_variables.net_buffer_length;
7331
#endif
7332 7333
  if (fix_paths())
    return 1;
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7334

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7335 7336 7337 7338
  /*
    Set some global variables from the global_system_variables
    In most cases the global variables will not be used
  */
7339
  my_disable_locking= myisam_single_user= test(opt_external_locking == 0);
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7340
  my_default_record_cache_size=global_system_variables.read_buff_size;
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7341

7342 7343
  global_system_variables.long_query_time= (ulonglong)
    (global_system_variables.long_query_time_double * 1e6);
7344

7345 7346
  if (opt_short_log_format)
    opt_specialflag|= SPECIAL_SHORT_LOG_FORMAT;
7347

7348
  if (init_global_datetime_format(MYSQL_TIMESTAMP_DATE,
7349
                                  &global_date_format) ||
7350
      init_global_datetime_format(MYSQL_TIMESTAMP_TIME,
7351
                                  &global_time_format) ||
7352
      init_global_datetime_format(MYSQL_TIMESTAMP_DATETIME,
7353
                                  &global_datetime_format))
7354
    return 1;
7355

unknown's avatar
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7356 7357 7358
#ifdef EMBEDDED_LIBRARY
  one_thread_scheduler(&thread_scheduler);
#else
7359
  if (thread_handling <= SCHEDULER_ONE_THREAD_PER_CONNECTION)
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7360
    one_thread_per_connection_scheduler(&thread_scheduler);
7361
  else if (thread_handling == SCHEDULER_NO_THREADS)
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7362 7363 7364 7365
    one_thread_scheduler(&thread_scheduler);
  else
    pool_of_threads_scheduler(&thread_scheduler);  /* purecov: tested */
#endif
7366 7367 7368 7369 7370

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

7371
  return 0;
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7372 7373 7374
}


7375 7376 7377 7378 7379 7380 7381 7382 7383 7384
/*
  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,
7385
                     MYSQL_SERVER_SUFFIX_STR, NullS);
7386 7387 7388 7389
#ifdef EMBEDDED_LIBRARY
  end= strmov(end, "-embedded");
#endif
#ifndef DBUG_OFF
7390
  if (!strstr(MYSQL_SERVER_SUFFIX_STR, "-debug"))
7391 7392
    end= strmov(end, "-debug");
#endif
7393
  if (opt_log || opt_slow_log || opt_bin_log)
7394 7395 7396 7397
    strmov(end, "-log");                        // This may slow down system
}


unknown's avatar
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7398 7399 7400
static char *get_relative_path(const char *path)
{
  if (test_if_hard_path(path) &&
7401
      is_prefix(path,DEFAULT_MYSQL_HOME) &&
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7402 7403
      strcmp(DEFAULT_MYSQL_HOME,FN_ROOTDIR))
  {
unknown's avatar
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7404
    path+=(uint) strlen(DEFAULT_MYSQL_HOME);
7405
    while (*path == FN_LIBCHAR || *path == FN_LIBCHAR2)
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7406 7407 7408 7409 7410 7411
      path++;
  }
  return (char*) path;
}


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7412
/**
7413 7414
  Fix filename and replace extension where 'dir' is relative to
  mysql_real_data_home.
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7415 7416
  @return
    1 if len(path) > FN_REFLEN
7417 7418 7419
*/

bool
7420
fn_format_relative_to_data_home(char * to, const char *name,
7421 7422 7423 7424 7425 7426 7427 7428 7429 7430
				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,
7431
		    MY_APPEND_EXT | MY_UNPACK_FILENAME | MY_SAFE_PATH);
7432 7433 7434
}


7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 7448 7449 7450 7451 7452 7453 7454
/**
  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
7455 7456 7457
  if (strlen(path) >= FN_REFLEN)
    return FALSE;

7458 7459 7460 7461 7462 7463 7464 7465 7466 7467 7468 7469 7470 7471 7472 7473 7474 7475 7476
  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;
}

7477
static int fix_paths(void)
unknown's avatar
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7478
{
7479
  char buff[FN_REFLEN],*pos;
7480
  convert_dirname(mysql_home,mysql_home,NullS);
7481
  /* Resolve symlinks to allow 'mysql_home' to be a relative symlink */
7482
  my_realpath(mysql_home,mysql_home,MYF(0));
7483 7484 7485 7486 7487 7488 7489
  /* Ensure that mysql_home ends in FN_LIBCHAR */
  pos=strend(mysql_home);
  if (pos[-1] != FN_LIBCHAR)
  {
    pos[0]= FN_LIBCHAR;
    pos[1]= 0;
  }
7490
  convert_dirname(lc_messages_dir, lc_messages_dir, NullS);
7491
  convert_dirname(mysql_real_data_home,mysql_real_data_home,NullS);
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7492 7493
  (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);
7494
  (void) my_load_path(pidfile_name, pidfile_name_ptr, mysql_real_data_home);
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7495
  (void) my_load_path(opt_plugin_dir, opt_plugin_dir_ptr ? opt_plugin_dir_ptr :
7496
                                      get_relative_path(PLUGINDIR), mysql_home);
7497
  opt_plugin_dir_ptr= opt_plugin_dir;
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7498

7499 7500 7501 7502 7503 7504
  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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7505
  char *sharedir=get_relative_path(SHAREDIR);
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7506
  if (test_if_hard_path(sharedir))
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7507
    strmake(buff,sharedir,sizeof(buff)-1);		/* purecov: tested */
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7508
  else
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7509
    strxnmov(buff,sizeof(buff)-1,mysql_home,sharedir,NullS);
7510
  convert_dirname(buff,buff,NullS);
7511
  (void) my_load_path(lc_messages_dir, lc_messages_dir, buff);
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7512 7513

  /* If --character-sets-dir isn't given, use shared library dir */
7514 7515 7516
  if (charsets_dir)
    strmake(mysql_charsets_dir, charsets_dir, sizeof(mysql_charsets_dir)-1);
  else
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7517 7518
    strxnmov(mysql_charsets_dir, sizeof(mysql_charsets_dir)-1, buff,
	     CHARSET_DIR, NullS);
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7519
  (void) my_load_path(mysql_charsets_dir, mysql_charsets_dir, buff);
7520
  convert_dirname(mysql_charsets_dir, mysql_charsets_dir, NullS);
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7521
  charsets_dir=mysql_charsets_dir;
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7522

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7523
  if (init_tmpdir(&mysql_tmpdir_list, opt_mysql_tmpdir))
7524
    return 1;
7525 7526
  if (!opt_mysql_tmpdir)
    opt_mysql_tmpdir= mysql_tmpdir;
unknown's avatar
SCRUM  
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7527
#ifdef HAVE_REPLICATION
7528
  if (!slave_load_tmpdir)
7529
    slave_load_tmpdir= mysql_tmpdir;
7530
#endif /* HAVE_REPLICATION */
7531 7532 7533 7534 7535 7536
  /*
    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)
  {
7537 7538 7539 7540 7541 7542
    if (*opt_secure_file_priv == 0)
    {
      opt_secure_file_priv= 0;
    }
    else
    {
Georgi Kodinov's avatar
Georgi Kodinov committed
7543 7544
      if (strlen(opt_secure_file_priv) >= FN_REFLEN)
        opt_secure_file_priv[FN_REFLEN-1]= '\0';
7545
      if (my_realpath(buff, opt_secure_file_priv, 0))
7546 7547 7548 7549
      {
        sql_print_warning("Failed to normalize the argument for --secure-file-priv.");
        return 1;
      }
7550 7551
      char *secure_file_real_path= (char *)my_malloc(FN_REFLEN, MYF(MY_FAE));
      convert_dirname(secure_file_real_path, buff, NullS);
7552
      my_free(opt_secure_file_priv);
7553 7554
      opt_secure_file_priv= secure_file_real_path;
    }
7555
  }
7556
  
7557
  return 0;
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7558 7559
}

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7560 7561
/**
  Check if file system used for databases is case insensitive.
7562

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7563
  @param dir_name			Directory to test
7564

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7565
  @retval
7566
    -1  Don't know (Test failed)
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7567
  @retval
7568
    0   File system is case sensitive
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7569
  @retval
7570 7571 7572 7573 7574 7575 7576 7577 7578
    1   File system is case insensitive
*/

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


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#ifndef EMBEDDED_LIBRARY

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/**
  Create file to store pid number.
*/
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static void create_pid_file()
{
  File file;
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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_lock_db, key_LOCK_manager,
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  key_LOCK_mysql_create_db, key_LOCK_open, key_LOCK_prepared_stmt_count,
  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_lock_db, "LOCK_lock_db", PSI_FLAG_GLOBAL},
  { &key_LOCK_manager, "LOCK_manager", PSI_FLAG_GLOBAL},
  { &key_LOCK_mysql_create_db, "LOCK_mysql_create_db", PSI_FLAG_GLOBAL},
  { &key_LOCK_open, "LOCK_open", 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,
  key_COND_refresh, key_COND_rpl_status, key_COND_server_started,
  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_refresh, "COND_refresh", 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 */