dlls/msvcrt/main.c

   1 /*
   2  * msvcrt.dll initialisation functions
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20 #include "msvcrt.h"
  21 #include "msvcrt/mbctype.h"
  22
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  26
  27 /* Index to TLS */
  28 DWORD msvcrt_tls_index;
  29
  30 static const char* msvcrt_get_reason(DWORD reason)
  31 {
  32   switch (reason)
  33   {
  34   case DLL_PROCESS_ATTACH: return "DLL_PROCESS_ATTACH";
  35   case DLL_PROCESS_DETACH: return "DLL_PROCESS_DETACH";
  36   case DLL_THREAD_ATTACH:  return "DLL_THREAD_ATTACH";
  37   case DLL_THREAD_DETACH:  return "DLL_THREAD_DETACH";
  38   }
  39   return "UNKNOWN";
  40 }
  41
  42 static inline BOOL msvcrt_init_tls(void)
  43 {
  44   msvcrt_tls_index = TlsAlloc();
  45
  46   if (msvcrt_tls_index == TLS_OUT_OF_INDEXES)
  47   {
  48     ERR("TlsAlloc() failed!\n");
  49     return FALSE;
  50   }
  51   return TRUE;
  52 }
  53
  54 static inline BOOL msvcrt_free_tls(void)
  55 {
  56   if (!TlsFree(msvcrt_tls_index))
  57   {
  58     ERR("TlsFree() failed!\n");
  59     return FALSE;
  60   }
  61   return TRUE;
  62 }
  63
  64 /*********************************************************************
  65  *                  Init
  66  */
  67 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  68 {
  69   thread_data_t *tls;
  70
  71   TRACE("(%p, %s, %p) pid(%x), tid(%x), tls(%ld)\n",
  72         hinstDLL, msvcrt_get_reason(fdwReason), lpvReserved,
  73         GetCurrentProcessId(), GetCurrentThreadId(),
  74         (long)msvcrt_tls_index);
  75
  76   switch (fdwReason)
  77   {
  78   case DLL_PROCESS_ATTACH:
  79     if (!msvcrt_init_tls())
  80       return FALSE;
  81     msvcrt_init_mt_locks();
  82     msvcrt_init_io();
  83     msvcrt_init_console();
  84     msvcrt_init_args();
  85     msvcrt_init_signals();
  86     MSVCRT_setlocale(0, "C");
  87     _setmbcp(_MB_CP_LOCALE);
  88     TRACE("finished process init\n");
  89     break;
  90   case DLL_THREAD_ATTACH:
  91     break;
  92   case DLL_PROCESS_DETACH:
  93     msvcrt_free_mt_locks();
  94     msvcrt_free_io();
  95     msvcrt_free_console();
  96     msvcrt_free_args();
  97     msvcrt_free_signals();
  98     if (!msvcrt_free_tls())
  99       return FALSE;
 100     TRACE("finished process free\n");
 101     break;
 102   case DLL_THREAD_DETACH:
 103     /* Free TLS */
 104     tls = TlsGetValue(msvcrt_tls_index);
 105     if (tls)
 106     {
 107         HeapFree(GetProcessHeap(),0,tls->efcvt_buffer);
 108         HeapFree(GetProcessHeap(),0,tls->asctime_buffer);
 109         HeapFree(GetProcessHeap(),0,tls->wasctime_buffer);
 110         HeapFree(GetProcessHeap(),0,tls->strerror_buffer);
 111     }
 112     HeapFree(GetProcessHeap(), 0, tls);
 113     TRACE("finished thread free\n");
 114     break;
 115   }
 116   return TRUE;
 117 }
 118
 119 /*********************************************************************
 120  *              $I10_OUTPUT (MSVCRT.@)
 121  * Function not really understood but needed to make the DLL work
 122  */
 123 void CDECL MSVCRT_I10_OUTPUT(void)
 124 {
 125   /* FIXME: This is probably data, not a function */
 126   /* no it is a function. I10 is an Int of 10 bytes */
 127   /* also known as 80 bit floating point (long double */
 128   /* for some compilers, not MSVC) */
 129 }
 130
 131 /*********************************************************************
 132  *              _adjust_fdiv (MSVCRT.@)
 133  * Used by the MSVC compiler to work around the Pentium FDIV bug.
 134  */
 135 int MSVCRT__adjust_fdiv = 0;