/*
Copyright ( c ) 2000 , 2012 , Oracle and / or its affiliates
Copyright ( c ) 2009 , 2011 , Monty Program Ab
Copyright ( c ) 2026 , MariaDB plc .
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation ; version 2 of the License .
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 .
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#include "mysys_priv.h"
#include "my_static.h"
#include "mysys_err.h"
#include <m_string.h>
#include <m_ctype.h>
#include <signal.h>
#include <mysql/psi/mysql_stage.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef _WIN32
#ifdef _MSC_VER
#include <locale.h>
#include <crtdbg.h>
/* WSAStartup needs winsock library*/
#pragma comment(lib, "ws2_32" )
#endif
static void my_win_init(void );
static my_bool win32_init_tcp_ip();
static void setup_codepages();
#else
#define my_win_init()
#endif
#if defined (_SC_PAGE_SIZE) && !defined (_SC_PAGESIZE)
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#if defined (__linux__)
#define EXE_LINKPATH "/proc/self/exe"
#elif defined (__FreeBSD__)
/* unfortunately, not mounted by default */
#define EXE_LINKPATH "/proc/curproc/file"
#endif
#define SCALE_SEC 100
#define SCALE_USEC 10000
my_bool my_init_done= 0 ;
uint mysys_usage_id= 0 ; /* Incremented for each my_init() */
size_t my_system_page_size= 8192 ; /* Default if no sysconf() */
READ_ONLY_SYSVAR ulonglong my_thread_stack_size= (sizeof (void *) <= 4 )? 65536 : ((256 -16 )*1024 );
static mode_t atoi_octal(const char *str)
{
long long tmp;
int err;
while (*str && my_isspace(&my_charset_latin1, *str))
str++;
tmp= my_strntoul_8bit(&my_charset_latin1, str, strlen(str),
(*str == '0' ? 8 : 10 ), /* Octal or decimal */
NULL, &err);
return (mode_t) tmp;
}
MYSQL_FILE *mysql_stdin= NULL;
static MYSQL_FILE instrumented_stdin;
#ifdef _WIN32
static UINT orig_console_cp, orig_console_output_cp;
static void reset_console_cp(void )
{
/*
We try not to call SetConsoleCP unnecessarily , to workaround a bug on
older Windows 10 ( 1803 ) , which could switch truetype console fonts to
raster , eventhough SetConsoleCP would be a no - op ( switch from UTF8 to UTF8 ) .
*/
if (GetConsoleCP() != orig_console_cp)
SetConsoleCP(orig_console_cp);
if (GetConsoleOutputCP() != orig_console_output_cp)
SetConsoleOutputCP(orig_console_output_cp);
}
/*
The below fixes discrepancies in console output and
command line parameter encoding . command line is in
ANSI codepage , output to console by default is in OEM , but
we like them to be in the same encoding .
We do this only if current codepage is UTF8 , i . e when we
know we ' re on Windows that can handle UTF8 well .
*/
static void setup_codepages()
{
UINT acp;
BOOL is_a_tty= fileno(stdout) >= 0 && isatty(fileno(stdout));
if (is_a_tty)
{
/*
Save console codepages , in case we change them ,
to restore them on exit .
*/
orig_console_cp= GetConsoleCP();
orig_console_output_cp= GetConsoleOutputCP();
if (orig_console_cp && orig_console_output_cp)
atexit(reset_console_cp);
}
if ((acp= GetACP()) != CP_UTF8)
return ;
/*
Use setlocale to make mbstowcs / mkdir / getcwd behave , see
https : //docs.microsoft.com/en-us/cpp/c-runtime-library/reference/setlocale-wsetlocale
*/
setlocale(LC_ALL, "en_US.UTF8" );
if (is_a_tty && (orig_console_cp != acp || orig_console_output_cp != acp))
{
/*
If ANSI codepage is UTF8 , we actually want to switch console
to it as well .
*/
SetConsoleCP(acp);
SetConsoleOutputCP(acp);
}
}
#endif
/**
Initialize my_sys functions , resources and variables
@ return Initialization result
@ retval 0 Success
@ retval 1 Error . Couldn ' t initialize environment
*/
my_bool my_init(void )
{
char *str;
if (my_init_done)
return 0 ;
my_init_done= 1 ;
mysys_usage_id++;
my_umask= 0660 ; /* Default umask for new files */
my_umask_dir= 0700 ; /* Default umask for new directories */
my_global_flags= 0 ;
my_system_page_size= my_getpagesize();
/* Default creation of new files */
if ((str= getenv("UMASK" )) != 0 )
my_umask= atoi_octal(str) | 0600 ;
/* Default creation of new dir's */
if ((str= getenv("UMASK_DIR" )) != 0 )
my_umask_dir= atoi_octal(str) | 0700 ;
init_glob_errs();
instrumented_stdin.m_file= stdin;
instrumented_stdin.m_psi= NULL; /* not yet instrumented */
mysql_stdin= & instrumented_stdin;
my_progname_short= "unknown" ;
/* Initialize our mutex handling */
my_mutex_init();
if (my_thread_global_init())
return 1 ;
if (my_progname)
{
char link_name[FN_REFLEN];
my_progname_short= my_progname + dirname_length(my_progname);
/*
if my_progname_short doesn ' t start from " mariadb " , but it ' s
a symlink to an actual executable , that does - warn the user .
First try to find the actual name via / proc , but if it ' s unmounted
( which it usually is on FreeBSD ) resort to my_progname
*/
if (strncmp(my_progname_short, "mariadb" , 7 ))
{
int res= 1 ;
#ifdef EXE_LINKPATH
res= my_readlink(link_name, EXE_LINKPATH, MYF(0 ));
#endif
if ((res == 0 || my_readlink(link_name, my_progname, MYF(0 )) == 0 ) &&
strncmp(link_name + dirname_length(link_name), "mariadb" , 7 ) == 0 )
my_error(EE_NAME_DEPRECATED, MYF(MY_WME), link_name);
}
}
#if defined (SAFEMALLOC) && !defined (DBUG_OFF)
dbug_sanity= sf_sanity;
#endif
/* $HOME is needed early to parse configuration files located in ~/ */
if ((home_dir= getenv("HOME" )) != 0 )
home_dir= intern_filename(home_dir_buff, home_dir);
{
DBUG_ENTER("my_init" );
DBUG_PROCESS((char *) (my_progname ? my_progname : "unknown" ));
my_time_init();
my_win_init();
DBUG_PRINT("exit" , ("home: '%s'" , home_dir));
#ifdef _WIN32
if (win32_init_tcp_ip())
DBUG_RETURN(1 );
#endif
#ifdef CHECK_UNLIKELY
init_my_likely();
#endif
DBUG_RETURN(0 );
}
} /* my_init */
/* End my_sys */
void my_end(int infoflag)
{
/*
this code is suboptimal to workaround a bug in
Sun CC : Sun C + + 5 . 6 2004 / 06 / 02 for x86 , and should not be
optimized until this compiler is not in use anymore
*/
FILE *info_file= DBUG_FILE;
my_bool print_info= (info_file != stderr);
if (!my_init_done)
return ;
/*
We do not use DBUG_ENTER here , as after cleanup DBUG is no longer
operational , so we cannot use DBUG_RETURN .
*/
DBUG_PRINT("info" ,("Shutting down: infoflag: %d print_info: %d" ,
infoflag, print_info));
if (!info_file)
{
info_file= stderr;
print_info= 0 ;
}
if ((infoflag & MY_CHECK_ERROR) || print_info)
{ /* Test if some file is left open */
char ebuff[512 ];
uint i, open_files, open_streams;
for (open_streams= open_files= i= 0 ; i < my_file_limit ; i++)
{
if (my_file_info[i].type == UNOPEN)
continue ;
if (my_file_info[i].type == STREAM_BY_FOPEN ||
my_file_info[i].type == STREAM_BY_FDOPEN)
open_streams++;
else
open_files++;
#ifdef EXTRA_DEBUG
fprintf(stderr, EE(EE_FILE_NOT_CLOSED), my_file_info[i].name, i);
fputc('\n' , stderr);
#endif
}
if (open_files || open_streams)
{
my_snprintf(ebuff, sizeof (ebuff), EE(EE_OPEN_WARNING),
open_files, open_streams);
my_message_stderr(EE_OPEN_WARNING, ebuff, ME_BELL);
DBUG_PRINT("error" , ("%s" , ebuff));
}
#ifdef CHECK_UNLIKELY
end_my_likely(info_file);
#endif
}
free_charsets();
my_error_unregister_all();
my_once_free();
if ((infoflag & MY_GIVE_INFO) || print_info)
{
#ifdef HAVE_GETRUSAGE
struct rusage rus;
#ifdef HAVE_valgrind
/* Purify assumes that rus is uninitialized after getrusage call */
bzero((char *) &rus, sizeof (rus));
#endif
if (!getrusage(RUSAGE_SELF, &rus))
fprintf(info_file,"\n\
User time %.2 f, System time %.2 f\n\
Maximum resident set size %ld, Integral resident set size %ld\n\
Non-physical pagefaults %ld, Physical pagefaults %ld, Swaps %ld\n\
Blocks in %ld out %ld, Messages in %ld out %ld, Signals %ld\n\
Voluntary context switches %ld, Involuntary context switches %ld\n",
(rus.ru_utime.tv_sec * SCALE_SEC +
rus.ru_utime.tv_usec / SCALE_USEC) / 100 .0 ,
(rus.ru_stime.tv_sec * SCALE_SEC +
rus.ru_stime.tv_usec / SCALE_USEC) / 100 .0 ,
rus.ru_maxrss, rus.ru_idrss,
rus.ru_minflt, rus.ru_majflt,
rus.ru_nswap, rus.ru_inblock, rus.ru_oublock,
rus.ru_msgsnd, rus.ru_msgrcv, rus.ru_nsignals,
rus.ru_nvcsw, rus.ru_nivcsw);
#endif
#if defined (_MSC_VER)
_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 );
_CrtCheckMemory();
#endif
}
my_thread_end();
my_thread_global_end();
if (!(infoflag & MY_DONT_FREE_DBUG))
DBUG_END(); /* Must be done as late as possible */
my_mutex_end();
#if defined (SAFE_MUTEX)
/*
Check on destroying of mutexes . A few may be left that will get cleaned
up by C + + destructors
*/
safe_mutex_end((infoflag & (MY_GIVE_INFO | MY_CHECK_ERROR)) ? stderr :
(FILE *) 0 );
#endif /* defined(SAFE_MUTEX) */
#ifdef _WIN32
WSACleanup();
#endif
/* At very last, delete mysys key, it is used everywhere including DBUG */
my_init_done= 0 ;
} /* my_end */
#ifdef DBUG_ASSERT_EXISTS
/* Dummy tag function for debugging */
void my_debug_put_break_here(void )
{
}
#endif
#ifdef _WIN32
/*
my_parameter_handler
Invalid parameter handler we will use instead of the one " baked "
into the CRT .
*/
void my_parameter_handler(const wchar_t * expression, const wchar_t * function,
const wchar_t * file, unsigned int line,
uintptr_t pReserved)
{
__debugbreak();
}
#ifdef __MSVC_RUNTIME_CHECKS
#include <rtcapi.h>
/* Turn off runtime checks for 'handle_rtc_failure' */
#pragma runtime_checks("" , off)
/*
handle_rtc_failure
Catch the RTC error and dump it to stderr
*/
int handle_rtc_failure(int err_type, const char *file, int line,
const char * module, const char *format, ...)
{
va_list args;
va_start(args, format);
fprintf(stderr, "Error:" );
vfprintf(stderr, format, args);
fprintf(stderr, " At %s:%d\n" , file, line);
va_end(args);
(void ) fflush(stderr);
__debugbreak();
return 0 ; /* Error is handled */
}
#pragma runtime_checks("" , restore)
#endif
static void my_win_init(void )
{
DBUG_ENTER("my_win_init" );
#if defined (_MSC_VER)
_set_invalid_parameter_handler(my_parameter_handler);
#endif
#ifdef __MSVC_RUNTIME_CHECKS
/*
Install handler to send RTC ( Runtime Error Check ) warnings
to log file
*/
_RTC_SetErrorFunc(handle_rtc_failure);
#endif
_tzset();
/* Disable automatic LF->CRLF translation. */
FILE* stdf[]= {stdin, stdout, stderr};
for (int i= 0 ; i < array_elements(stdf); i++)
{
int fd= fileno(stdf[i]);
if (fd >= 0 )
(void ) _setmode(fd, O_BINARY);
}
_set_fmode(O_BINARY);
setup_codepages();
DBUG_VOID_RETURN;
}
static my_bool win32_init_tcp_ip()
{
WORD wVersionRequested = MAKEWORD( 2 , 2 );
WSADATA wsaData;
if (WSAStartup(wVersionRequested, &wsaData))
{
fprintf(stderr, "WSAStartup() failed with error: %d\n" , WSAGetLastError());
return 1 ;
}
return (0 );
}
#endif /* _WIN32 */
PSI_stage_info stage_waiting_for_table_level_lock=
{0 , "Waiting for table level lock" , 0 };
#ifdef HAVE_PSI_INTERFACE
#if !defined (HAVE_PREAD) && !defined (_WIN32)
PSI_mutex_key key_my_file_info_mutex;
#endif /* !defined(HAVE_PREAD) && !defined(_WIN32) */
#if !defined (HAVE_LOCALTIME_R) || !defined (HAVE_GMTIME_R)
PSI_mutex_key key_LOCK_localtime_r;
#endif /* !defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R) */
PSI_mutex_key key_BITMAP_mutex, key_IO_CACHE_append_buffer_lock,
key_IO_CACHE_SHARE_mutex, key_KEY_CACHE_cache_lock,
key_LOCK_timer,
key_my_thread_var_mutex, key_THR_LOCK_charset, key_THR_LOCK_heap,
key_THR_LOCK_lock, key_THR_LOCK_malloc,
key_THR_LOCK_mutex, key_THR_LOCK_myisam, key_THR_LOCK_net,
key_THR_LOCK_open, key_THR_LOCK_threads,
key_TMPDIR_mutex, key_THR_LOCK_myisam_mmap, key_LOCK_uuid_generator;
static PSI_mutex_info all_mysys_mutexes[]=
{
#if !defined (HAVE_PREAD) && !defined (_WIN32)
{ &key_my_file_info_mutex, "st_my_file_info:mutex" , 0 },
#endif /* !defined(HAVE_PREAD) && !defined(_WIN32) */
#if !defined (HAVE_LOCALTIME_R) || !defined (HAVE_GMTIME_R)
{ &key_LOCK_localtime_r, "LOCK_localtime_r" , PSI_FLAG_GLOBAL},
#endif /* !defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R) */
{ &key_BITMAP_mutex, "BITMAP::mutex" , 0 },
{ &key_IO_CACHE_append_buffer_lock, "IO_CACHE::append_buffer_lock" , 0 },
{ &key_IO_CACHE_SHARE_mutex, "IO_CACHE::SHARE_mutex" , 0 },
{ &key_KEY_CACHE_cache_lock, "KEY_CACHE::cache_lock" , 0 },
{ &key_LOCK_timer, "LOCK_timer" , PSI_FLAG_GLOBAL},
{ &key_my_thread_var_mutex, "my_thread_var::mutex" , 0 },
{ &key_THR_LOCK_charset, "THR_LOCK_charset" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_heap, "THR_LOCK_heap" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_lock, "THR_LOCK_lock" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_malloc, "THR_LOCK_malloc" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_mutex, "THR_LOCK::mutex" , 0 },
{ &key_THR_LOCK_myisam, "THR_LOCK_myisam" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_net, "THR_LOCK_net" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_open, "THR_LOCK_open" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_threads, "THR_LOCK_threads" , PSI_FLAG_GLOBAL},
{ &key_TMPDIR_mutex, "TMPDIR_mutex" , PSI_FLAG_GLOBAL},
{ &key_THR_LOCK_myisam_mmap, "THR_LOCK_myisam_mmap" , PSI_FLAG_GLOBAL},
{ &key_LOCK_uuid_generator, "LOCK_uuid_generator" , PSI_FLAG_GLOBAL }
};
PSI_cond_key key_COND_timer, key_IO_CACHE_SHARE_cond,
key_IO_CACHE_SHARE_cond_writer, key_my_thread_var_suspend,
key_THR_COND_threads, key_WT_RESOURCE_cond;
static PSI_cond_info all_mysys_conds[]=
{
{ &key_COND_timer, "COND_timer" , PSI_FLAG_GLOBAL},
{ &key_IO_CACHE_SHARE_cond, "IO_CACHE_SHARE::cond" , 0 },
{ &key_IO_CACHE_SHARE_cond_writer, "IO_CACHE_SHARE::cond_writer" , 0 },
{ &key_my_thread_var_suspend, "my_thread_var::suspend" , 0 },
{ &key_THR_COND_threads, "THR_COND_threads" , PSI_FLAG_GLOBAL},
{ &key_WT_RESOURCE_cond, "WT_RESOURCE::cond" , 0 }
};
PSI_rwlock_key key_SAFEHASH_mutex;
static PSI_rwlock_info all_mysys_rwlocks[]=
{
{ &key_SAFEHASH_mutex, "SAFE_HASH::mutex" , 0 }
};
PSI_thread_key key_thread_timer;
static PSI_thread_info all_mysys_threads[]=
{
{ &key_thread_timer, "statement_timer" , PSI_FLAG_GLOBAL}
};
PSI_file_key key_file_charset, key_file_cnf;
static PSI_file_info all_mysys_files[]=
{
{ &key_file_charset, "charset" , 0 },
{ &key_file_cnf, "cnf" , 0 }
};
PSI_stage_info *all_mysys_stages[]=
{
& stage_waiting_for_table_level_lock
};
void my_init_mysys_psi_keys()
{
const char * category= "mysys" ;
int count;
count= sizeof (all_mysys_mutexes)/sizeof (all_mysys_mutexes[0 ]);
mysql_mutex_register(category, all_mysys_mutexes, count);
count= sizeof (all_mysys_conds)/sizeof (all_mysys_conds[0 ]);
mysql_cond_register(category, all_mysys_conds, count);
count= sizeof (all_mysys_rwlocks)/sizeof (all_mysys_rwlocks[0 ]);
mysql_rwlock_register(category, all_mysys_rwlocks, count);
count= sizeof (all_mysys_threads)/sizeof (all_mysys_threads[0 ]);
mysql_thread_register(category, all_mysys_threads, count);
count= sizeof (all_mysys_files)/sizeof (all_mysys_files[0 ]);
mysql_file_register(category, all_mysys_files, count);
count= array_elements(all_mysys_stages);
mysql_stage_register(category, all_mysys_stages, count);
}
#endif /* HAVE_PSI_INTERFACE */
Messung V0.5 in Prozent C=93 H=96 G=94
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-10-08)
¤
*© Formatika GbR, Deutschland