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
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  25
  26 /* Index to TLS */
  27 DWORD msvcrt_tls_index;
  28
  29 static const char* msvcrt_get_reason(DWORD reason)
  30 {
  31   switch (reason)
  32   {
  33   case DLL_PROCESS_ATTACH: return "DLL_PROCESS_ATTACH";
  34   case DLL_PROCESS_DETACH: return "DLL_PROCESS_DETACH";
  35   case DLL_THREAD_ATTACH:  return "DLL_THREAD_ATTACH";
  36   case DLL_THREAD_DETACH:  return "DLL_THREAD_DETACH";
  37   }
  38   return "UNKNOWN";
  39 }
  40
  41 static inline BOOL msvcrt_init_tls(void)
  42 {
  43   msvcrt_tls_index = TlsAlloc();
  44
  45   if (msvcrt_tls_index == TLS_OUT_OF_INDEXES)
  46   {
  47     ERR("TlsAlloc() failed!\n");
  48     return FALSE;
  49   }
  50   return TRUE;
  51 }
  52
  53 static inline BOOL msvcrt_free_tls(void)
  54 {
  55   if (!TlsFree(msvcrt_tls_index))
  56   {
  57     ERR("TlsFree() failed!\n");
  58     return FALSE;
  59   }
  60   return TRUE;
  61 }
  62
  63 static inline void msvcrt_free_tls_mem(void)
  64 {
  65   thread_data_t *tls = TlsGetValue(msvcrt_tls_index);
  66   if (tls)
  67   {
  68     HeapFree(GetProcessHeap(),0,tls->efcvt_buffer);
  69     HeapFree(GetProcessHeap(),0,tls->asctime_buffer);
  70     HeapFree(GetProcessHeap(),0,tls->wasctime_buffer);
  71     HeapFree(GetProcessHeap(),0,tls->strerror_buffer);
  72   }
  73   HeapFree(GetProcessHeap(), 0, tls);
  74 }
  75
  76 /*********************************************************************
  77  *                  Init
  78  */
  79 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  80 {
  81   TRACE("(%p, %s, %p) pid(%x), tid(%x), tls(%u)\n",
  82         hinstDLL, msvcrt_get_reason(fdwReason), lpvReserved,
  83         GetCurrentProcessId(), GetCurrentThreadId(),
  84         msvcrt_tls_index);
  85
  86   switch (fdwReason)
  87   {
  88   case DLL_PROCESS_ATTACH:
  89     if (!msvcrt_init_tls())
  90       return FALSE;
  91     msvcrt_init_mt_locks();
  92     msvcrt_init_io();
  93     msvcrt_init_console();
  94     msvcrt_init_args();
  95     msvcrt_init_signals();
  96     MSVCRT_setlocale(0, "C");
  97     _setmbcp(_MB_CP_LOCALE);
  98     TRACE("finished process init\n");
  99     break;
 100   case DLL_THREAD_ATTACH:
 101     break;
 102   case DLL_PROCESS_DETACH:
 103     msvcrt_free_mt_locks();
 104     msvcrt_free_io();
 105     msvcrt_free_console();
 106     msvcrt_free_args();
 107     msvcrt_free_signals();
 108     msvcrt_free_tls_mem();
 109     if (!msvcrt_free_tls())
 110       return FALSE;
 111     TRACE("finished process free\n");
 112     break;
 113   case DLL_THREAD_DETACH:
 114     msvcrt_free_tls_mem();
 115     TRACE("finished thread free\n");
 116     break;
 117   }
 118   return TRUE;
 119 }
 120
 121 /*********************************************************************
 122  *              $I10_OUTPUT (MSVCRT.@)
 123  * Function not really understood but needed to make the DLL work
 124  */
 125 void CDECL MSVCRT_I10_OUTPUT(void)
 126 {
 127   /* FIXME: This is probably data, not a function */
 128   /* no it is a function. I10 is an Int of 10 bytes */
 129   /* also known as 80 bit floating point (long double */
 130   /* for some compilers, not MSVC) */
 131 }