my_init.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:12k
- /* Copyright (C) 2000-2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include "mysys_priv.h"
- #include "my_static.h"
- #include "mysys_err.h"
- #include <m_string.h>
- #include <m_ctype.h>
- #include <signal.h>
- #ifdef VMS
- #include <my_static.c>
- #include <m_ctype.h>
- #endif
- #ifdef __WIN__
- #ifdef _MSC_VER
- #include <locale.h>
- #include <crtdbg.h>
- #endif
- my_bool have_tcpip=0;
- static void my_win_init(void);
- static my_bool win32_have_tcpip(void);
- static my_bool win32_init_tcp_ip();
- #else
- #define my_win_init()
- #endif
- #ifdef __NETWARE__
- static void netware_init();
- #else
- #define netware_init()
- #endif
- my_bool my_init_done= 0;
- uint mysys_usage_id= 0; /* Incremented for each my_init() */
- static ulong atoi_octal(const char *str)
- {
- long int tmp;
- while (*str && my_isspace(&my_charset_latin1, *str))
- str++;
- str2int(str,
- (*str == '0' ? 8 : 10), /* Octalt or decimalt */
- 0, INT_MAX, &tmp);
- return (ulong) tmp;
- }
- /*
- Init my_sys functions and my_sys variabels
- SYNOPSIS
- my_init()
- RETURN
- 0 ok
- 1 Couldn't initialize environment
- */
- my_bool my_init(void)
- {
- my_string 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 */
- #if defined(THREAD) && defined(SAFE_MUTEX)
- safe_mutex_global_init(); /* Must be called early */
- #endif
- netware_init();
- #ifdef THREAD
- #if defined(HAVE_PTHREAD_INIT)
- pthread_init(); /* Must be called before DBUG_ENTER */
- #endif
- if (my_thread_global_init())
- return 1;
- #if !defined( __WIN__) && !defined(OS2) && !defined(__NETWARE__)
- sigfillset(&my_signals); /* signals blocked by mf_brkhant */
- #endif
- #endif /* THREAD */
- #ifdef UNIXWARE_7
- (void) isatty(0); /* Go around connect() bug in UW7 */
- #endif
- {
- DBUG_ENTER("my_init");
- DBUG_PROCESS(my_progname ? my_progname : (char*) "unknown");
- if (!home_dir)
- { /* Don't initialize twice */
- my_win_init();
- if ((home_dir=getenv("HOME")) != 0)
- home_dir=intern_filename(home_dir_buff,home_dir);
- #ifndef VMS
- /* Default creation of new files */
- if ((str=getenv("UMASK")) != 0)
- my_umask=(int) (atoi_octal(str) | 0600);
- /* Default creation of new dir's */
- if ((str=getenv("UMASK_DIR")) != 0)
- my_umask_dir=(int) (atoi_octal(str) | 0700);
- #endif
- #ifdef VMS
- init_ctype(); /* Stupid linker don't link _ctype.c */
- #endif
- DBUG_PRINT("exit",("home: '%s'",home_dir));
- }
- #ifdef __WIN__
- win32_init_tcp_ip();
- #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);
- DBUG_ENTER("my_end");
- if (!info_file)
- {
- info_file= stderr;
- print_info= 0;
- }
- DBUG_PRINT("info",("Shutting down: print_info: %d", print_info));
- if ((infoflag & MY_CHECK_ERROR) || print_info)
- { /* Test if some file is left open */
- if (my_file_opened | my_stream_opened)
- {
- sprintf(errbuff[0],EE(EE_OPEN_WARNING),my_file_opened,my_stream_opened);
- (void) my_message_no_curses(EE_OPEN_WARNING,errbuff[0],ME_BELL);
- DBUG_PRINT("error",("%s",errbuff[0]));
- }
- }
- my_once_free();
- if ((infoflag & MY_GIVE_INFO) || print_info)
- {
- #ifdef HAVE_GETRUSAGE
- struct rusage rus;
- #ifdef HAVE_purify
- /* 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 %.2f, System time %.2fn
- Maximum resident set size %ld, Integral resident set size %ldn
- Non-physical pagefaults %ld, Physical pagefaults %ld, Swaps %ldn
- Blocks in %ld out %ld, Messages in %ld out %ld, Signals %ldn
- Voluntary context switches %ld, Involuntary context switches %ldn",
- (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(MSDOS) || defined(__NETWARE__) ) && !defined(__WIN__)
- fprintf(info_file,"nRun time: %.1fn",(double) clock()/CLOCKS_PER_SEC);
- #endif
- #if defined(SAFEMALLOC)
- TERMINATE(stderr); /* Give statistic on screen */
- #elif defined(__WIN__) && 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();
- _CrtDumpMemoryLeaks();
- #endif
- }
- #ifdef THREAD
- DBUG_POP(); /* Must be done before my_thread_end */
- my_thread_end();
- my_thread_global_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 ? stderr : (FILE *) 0);
- #endif /* defined(SAFE_MUTEX) */
- #endif /* THREAD */
- #ifdef __WIN__
- if (have_tcpip)
- WSACleanup();
- #endif /* __WIN__ */
- my_init_done=0;
- } /* my_end */
- #ifdef __WIN__
- /*
- This code is specially for running MySQL, but it should work in
- other cases too.
- Inizializzazione delle variabili d'ambiente per Win a 32 bit.
- Vengono inserite nelle variabili d'ambiente (utilizzando cosi'
- le funzioni getenv e putenv) i valori presenti nelle chiavi
- del file di registro:
- HKEY_LOCAL_MACHINEsoftwareMySQL
- Se la kiave non esiste nonn inserisce nessun valore
- */
- /* Crea la stringa d'ambiente */
- void setEnvString(char *ret, const char *name, const char *value)
- {
- DBUG_ENTER("setEnvString");
- strxmov(ret, name,"=",value,NullS);
- DBUG_VOID_RETURN ;
- }
- static void my_win_init(void)
- {
- HKEY hSoftMysql ;
- DWORD dimName = 256 ;
- DWORD dimData = 1024 ;
- DWORD dimNameValueBuffer = 256 ;
- DWORD dimDataValueBuffer = 1024 ;
- DWORD indexValue = 0 ;
- long retCodeEnumValue ;
- char NameValueBuffer[256] ;
- char DataValueBuffer[1024] ;
- char EnvString[1271] ;
- const char *targetKey = "Software\MySQL" ;
- DBUG_ENTER("my_win_init");
- setlocale(LC_CTYPE, ""); /* To get right sortorder */
- #if defined(_MSC_VER) && (_MSC_VER < 1300)
- /*
- Clear the OS system variable TZ and avoid the 100% CPU usage
- Only for old versions of Visual C++
- */
- _putenv( "TZ=" );
- #endif
- _tzset();
- /* apre la chiave HKEY_LOCAL_MACHINESsoftwareMySQL */
- if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,(LPCTSTR)targetKey,0,
- KEY_READ,&hSoftMysql) != ERROR_SUCCESS)
- DBUG_VOID_RETURN;
- /*
- ** Ne legge i valori e li inserisce nell'ambiente
- ** suppone che tutti i valori letti siano di tipo stringa + ' '
- ** Legge il valore con indice 0 e lo scarta
- */
- retCodeEnumValue = RegEnumValue(hSoftMysql, indexValue++,
- (LPTSTR)NameValueBuffer, &dimNameValueBuffer,
- NULL, NULL, (LPBYTE)DataValueBuffer,
- &dimDataValueBuffer) ;
- while (retCodeEnumValue != ERROR_NO_MORE_ITEMS)
- {
- char *my_env;
- /* Crea la stringa d'ambiente */
- setEnvString(EnvString, NameValueBuffer, DataValueBuffer) ;
- /* Inserisce i dati come variabili d'ambiente */
- my_env=strdup(EnvString); /* variable for putenv must be allocated ! */
- putenv(my_env) ;
- dimNameValueBuffer = dimName ;
- dimDataValueBuffer = dimData ;
- retCodeEnumValue = RegEnumValue(hSoftMysql, indexValue++,
- NameValueBuffer, &dimNameValueBuffer,
- NULL, NULL, (LPBYTE)DataValueBuffer,
- &dimDataValueBuffer) ;
- }
- /* chiude la chiave */
- RegCloseKey(hSoftMysql) ;
- DBUG_VOID_RETURN ;
- }
- /*------------------------------------------------------------------
- Name: CheckForTcpip| Desc: checks if tcpip has been installed on system
- According to Microsoft Developers documentation the first registry
- entry should be enough to check if TCP/IP is installed, but as expected
- this doesn't work on all Win32 machines :(
- ------------------------------------------------------------------*/
- #define TCPIPKEY "SYSTEM\CurrentControlSet\Services\Tcpip\Parameters"
- #define WINSOCK2KEY "SYSTEM\CurrentControlSet\Services\Winsock2\Parameters"
- #define WINSOCKKEY "SYSTEM\CurrentControlSet\Services\Winsock\Parameters"
- static my_bool win32_have_tcpip(void)
- {
- HKEY hTcpipRegKey;
- if (RegOpenKeyEx ( HKEY_LOCAL_MACHINE, TCPIPKEY, 0, KEY_READ,
- &hTcpipRegKey) != ERROR_SUCCESS)
- {
- if (RegOpenKeyEx ( HKEY_LOCAL_MACHINE, WINSOCK2KEY, 0, KEY_READ,
- &hTcpipRegKey) != ERROR_SUCCESS)
- {
- if (RegOpenKeyEx ( HKEY_LOCAL_MACHINE, WINSOCKKEY, 0, KEY_READ,
- &hTcpipRegKey) != ERROR_SUCCESS)
- if (!getenv("HAVE_TCPIP") || have_tcpip) /* Provide a workaround */
- return (FALSE);
- }
- }
- RegCloseKey ( hTcpipRegKey);
- return (TRUE);
- }
- static my_bool win32_init_tcp_ip()
- {
- if (win32_have_tcpip())
- {
- WORD wVersionRequested = MAKEWORD( 2, 0 );
- WSADATA wsaData;
- /* Be a good citizen: maybe another lib has already initialised
- sockets, so dont clobber them unless necessary */
- if (WSAStartup( wVersionRequested, &wsaData ))
- {
- /* Load failed, maybe because of previously loaded
- incompatible version; try again */
- WSACleanup( );
- if (!WSAStartup( wVersionRequested, &wsaData ))
- have_tcpip=1;
- }
- else
- {
- if (wsaData.wVersion != wVersionRequested)
- {
- /* Version is no good, try again */
- WSACleanup( );
- if (!WSAStartup( wVersionRequested, &wsaData ))
- have_tcpip=1;
- }
- else
- have_tcpip=1;
- }
- }
- return(0);
- }
- #endif /* __WIN__ */
- #ifdef __NETWARE__
- /*
- Basic initialisation for netware
- */
- static void netware_init()
- {
- char cwd[PATH_MAX], *name;
- DBUG_ENTER("netware_init");
- /* init only if we are not a client library */
- if (my_progname)
- {
- #if SUPPORTED_BY_LIBC /* Removed until supported in Libc */
- struct termios tp;
- /* Disable control characters */
- tcgetattr(STDIN_FILENO, &tp);
- tp.c_cc[VINTR] = _POSIX_VDISABLE;
- tp.c_cc[VEOF] = _POSIX_VDISABLE;
- tp.c_cc[VSUSP] = _POSIX_VDISABLE;
- tcsetattr(STDIN_FILENO, TCSANOW, &tp);
- #endif /* SUPPORTED_BY_LIBC */
- /* With stdout redirection */
- if (!isatty(STDOUT_FILENO))
- {
- setscreenmode(SCR_AUTOCLOSE_ON_EXIT); /* auto close the screen */
- }
- else
- {
- setscreenmode(SCR_NO_MODE); /* keep the screen up */
- }
- /* Parse program name and change to base format */
- name= my_progname;
- for (; *name; name++)
- {
- if (*name == '\')
- {
- *name = '/';
- }
- else
- {
- *name = tolower(*name);
- }
- }
- }
- DBUG_VOID_RETURN;
- }
- #endif /* __NETWARE__ */