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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
/*
** Handling initialization of the dll library
*/
#include <my_global.h>
#include <my_sys.h>
#include <my_pthread.h>
static bool libmysql_inited=0;
void libmysql_init(void)
{
if (libmysql_inited)
return;
libmysql_inited=1;
my_init();
{
DBUG_ENTER("libmysql_init");
#ifdef LOG_ALL
DBUG_PUSH("d:t:S:O,c::\\tmp\\libmysql.log");
#else
if (getenv("LIBMYSQL_LOG") != NULL)
DBUG_PUSH(getenv("LIBMYSQL_LOG"));
#endif
DBUG_VOID_RETURN;
}
}
#ifdef __WIN__
static int inited=0,threads=0;
HINSTANCE NEAR s_hModule; /* Saved module handle */
DWORD main_thread;
BOOL APIENTRY LibMain(HANDLE hInst,DWORD ul_reason_being_called,
LPVOID lpReserved)
{
switch (ul_reason_being_called) {
case DLL_PROCESS_ATTACH: /* case of libentry call in win 3.x */
if (!inited++)
{
s_hModule=hInst;
libmysql_init();
main_thread=GetCurrentThreadId();
}
break;
case DLL_THREAD_ATTACH:
threads++;
my_thread_init();
break;
case DLL_PROCESS_DETACH: /* case of wep call in win 3.x */
if (!--inited) /* Safety */
{
/* my_thread_init() */ /* This may give extra safety */
my_end(0);
}
break;
case DLL_THREAD_DETACH:
/* Main thread will free by my_end() */
threads--;
if (main_thread != GetCurrentThreadId())
my_thread_end();
break;
default:
break;
} /* switch */
return TRUE;
UNREFERENCED_PARAMETER(lpReserved);
} /* LibMain */
int __stdcall DllMain(HANDLE hInst,DWORD ul_reason_being_called,LPVOID lpReserved)
{
return LibMain(hInst,ul_reason_being_called,lpReserved);
}
#elif defined(WINDOWS)
/****************************************************************************
** This routine is called by LIBSTART.ASM at module load time. All it
** does in this sample is remember the DLL module handle. The module
** handle is needed if you want to do things like load stuff from the
** resource file (for instance string resources).
****************************************************************************/
int _export FAR PASCAL libmain(HANDLE hModule,short cbHeapSize,
UCHAR FAR *lszCmdLine)
{
s_hModule = hModule;
libmysql_init();
return TRUE;
}
#endif
#ifdef OS2
//
// This function is called automatically by _DLL_InitTerm
// Every dll runtime enviroment is not tz enabled, so tzset()
// must be called to enable TZ handling
// Also timezone is fixed.
//
extern "C" unsigned long _System DllMain(unsigned long modhandle,
unsigned long flag)
{
if (flag == 0) {
tzset(); // Set tzname
time_t currentTime = time(NULL);
struct tm *ts = localtime(¤tTime);
if (ts->tm_isdst > 0)
_timezone -= 3600;
}
}
#endif
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