1 files changed, 112 insertions, 0 deletions
diff --git a/libmysql/dll.c b/libmysql/dll.c
new file mode 100644
index 00000000000..4c952c5889e
--- /dev/null
+++ b/libmysql/dll.c
@@ -0,0 +1,112 @@
+/* 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 <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