reactos/lib/msvcrt/dllmain.c

   1 /* $Id$
   2  *
   3  * dllmain.c
   4  *
   5  * ReactOS MSVCRT.DLL Compatibility Library
   6  *
   7  *  THIS SOFTWARE IS NOT COPYRIGHTED
   8  *
   9  *  This source code is offered for use in the public domain. You may
  10  *  use, modify or distribute it freely.
  11  *
  12  *  This code is distributed in the hope that it will be useful but
  13  *  WITHOUT ANY WARRANTY. ALL WARRENTIES, EXPRESS OR IMPLIED ARE HEREBY
  14  *  DISCLAMED. This includes but is not limited to warrenties of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16  *
  17  * $Revision: 1.24 $
  18  * $Author$
  19  * $Date$
  20  *
  21  */
  22
  23 #include "precomp.h"
  24 #include <msvcrt/internal/tls.h>
  25 #include <msvcrt/stdlib.h>
  26 #include <msvcrt/wine/msvcrt.h>
  27
  28 #define NDEBUG
  29 #include <msvcrt/msvcrtdbg.h>
  30
  31
  32 /* EXTERNAL PROTOTYPES ********************************************************/
  33
  34 //void __fileno_init(void);
  35 extern BOOL __fileno_init(void);
  36 extern int BlockEnvToEnvironA(void);
  37 extern int BlockEnvToEnvironW(void);
  38 extern void FreeEnvironment(char **environment);
  39
  40 extern unsigned int _osver;
  41 extern unsigned int _winminor;
  42 extern unsigned int _winmajor;
  43 extern unsigned int _winver;
  44
  45 extern char* _acmdln;        /* pointer to ascii command line */
  46 extern wchar_t* _wcmdln;     /* pointer to wide character command line */
  47 #undef _environ
  48 extern char** _environ;      /* pointer to environment block */
  49 extern char** __initenv;     /* pointer to initial environment block */
  50 extern wchar_t** _wenviron;  /* pointer to environment block */
  51 extern wchar_t** __winitenv; /* pointer to initial environment block */
  52
  53
  54 /* LIBRARY GLOBAL VARIABLES ***************************************************/
  55
  56 HANDLE hHeap = NULL;        /* handle for heap */
  57
  58
  59 /* LIBRARY ENTRY POINT ********************************************************/
  60
  61 BOOL
  62 STDCALL
  63 DllMain(PVOID hinstDll, ULONG dwReason, PVOID reserved)
  64 {
  65     switch (dwReason)
  66     {
  67     case DLL_PROCESS_ATTACH://1
  68         /* initialize version info */
  69         DPRINT("Attach %d\n", nAttachCount);
  70         _osver = GetVersion();
  71         _winmajor = (_osver >> 8) & 0xFF;
  72         _winminor = _osver & 0xFF;
  73         _winver = (_winmajor << 8) + _winminor;
  74         _osver = (_osver >> 16) & 0xFFFF;
  75         hHeap = HeapCreate(0, 100000, 0);
  76         if (hHeap == NULL)
  77             return FALSE;
  78         if (!__fileno_init())
  79             return FALSE;
  80
  81         /* create tls stuff */
  82         if (!CreateThreadData())
  83             return FALSE;
  84
  85         if (BlockEnvToEnvironA() < 0)
  86             return FALSE;
  87
  88         if (BlockEnvToEnvironW() < 0)
  89         {
  90             FreeEnvironment((char**)_wenviron);
  91             return FALSE;
  92         }
  93
  94         _acmdln = _strdup(GetCommandLineA());
  95         _wcmdln = _wcsdup(GetCommandLineW());
  96
  97         /* FIXME: more initializations... */
  98
  99         /* FIXME: Initialization of the WINE code */
 100         msvcrt_init_mt_locks();
 101
 102         DPRINT("Attach done\n");
 103         break;
 104
 105     case DLL_THREAD_ATTACH://2
 106         break;
 107
 108     case DLL_THREAD_DETACH://4
 109         FreeThreadData(NULL);
 110         break;
 111
 112     case DLL_PROCESS_DETACH://0
 113         DPRINT("Detach %d\n", nAttachCount);
 114         /* FIXME: more cleanup... */
 115         _fcloseall();
 116
 117         /* destroy tls stuff */
 118         DestroyThreadData();
 119
 120         if (__winitenv && __winitenv != _wenviron)
 121             FreeEnvironment((char**)__winitenv);
 122         if (_wenviron)
 123             FreeEnvironment((char**)_wenviron);
 124
 125         if (__initenv && __initenv != _environ)
 126             FreeEnvironment(__initenv);
 127         if (_environ)
 128             FreeEnvironment(_environ);
 129
 130         /* destroy heap */
 131         HeapDestroy(hHeap);
 132
 133         DPRINT("Detach done\n");
 134         break;
 135     }
 136
 137     return TRUE;
 138 }
 139
 140 /* EOF */