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 <locale.h>
  21 #include "msvcrt.h"
  22 #include "winternl.h"
  23
  24 #include "wine/debug.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  27
  28 /* Index to TLS */
  29 DWORD msvcrt_tls_index;
  30
  31 static const char* msvcrt_get_reason(DWORD reason)
  32 {
  33   switch (reason)
  34   {
  35   case DLL_PROCESS_ATTACH: return "DLL_PROCESS_ATTACH";
  36   case DLL_PROCESS_DETACH: return "DLL_PROCESS_DETACH";
  37   case DLL_THREAD_ATTACH:  return "DLL_THREAD_ATTACH";
  38   case DLL_THREAD_DETACH:  return "DLL_THREAD_DETACH";
  39   }
  40   return "UNKNOWN";
  41 }
  42
  43 static inline BOOL msvcrt_init_tls(void)
  44 {
  45   msvcrt_tls_index = TlsAlloc();
  46
  47   if (msvcrt_tls_index == TLS_OUT_OF_INDEXES)
  48   {
  49     ERR("TlsAlloc() failed!\n");
  50     return FALSE;
  51   }
  52   return TRUE;
  53 }
  54
  55 static inline BOOL msvcrt_free_tls(void)
  56 {
  57   if (!TlsFree(msvcrt_tls_index))
  58   {
  59     ERR("TlsFree() failed!\n");
  60     return FALSE;
  61   }
  62   return TRUE;
  63 }
  64
  65 static inline void msvcrt_free_tls_mem(void)
  66 {
  67   thread_data_t *tls = TlsGetValue(msvcrt_tls_index);
  68
  69   if (tls)
  70   {
  71     free(tls->efcvt_buffer);
  72     free(tls->asctime_buffer);
  73     free(tls->wasctime_buffer);
  74     free(tls->strerror_buffer);
  75     free(tls->wcserror_buffer);
  76     free(tls->time_buffer);
  77     free(tls->tmpnam_buffer);
  78     free(tls->wtmpnam_buffer);
  79     if(tls->locale_flags & LOCALE_FREE) {
  80         free_locinfo(tls->locinfo);
  81         free_mbcinfo(tls->mbcinfo);
  82     }
  83   }
  84   HeapFree(GetProcessHeap(), 0, tls);
  85 }
  86
  87 /*********************************************************************
  88  *                  Init
  89  */
  90 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
  91 {
  92   TRACE("(%p, %s, %p) pid(%x), tid(%x), tls(%u)\n",
  93         hinstDLL, msvcrt_get_reason(fdwReason), lpvReserved,
  94         GetCurrentProcessId(), GetCurrentThreadId(),
  95         msvcrt_tls_index);
  96
  97   switch (fdwReason)
  98   {
  99   case DLL_PROCESS_ATTACH:
 100     msvcrt_init_exception(hinstDLL);
 101     if(!msvcrt_init_heap())
 102         return FALSE;
 103     if(!msvcrt_init_tls()) {
 104       msvcrt_destroy_heap();
 105       return FALSE;
 106     }
 107     msvcrt_init_mt_locks();
 108     if(!msvcrt_init_locale()) {
 109         msvcrt_free_locks();
 110         msvcrt_free_tls_mem();
 111         msvcrt_destroy_heap();
 112         return FALSE;
 113     }
 114     msvcrt_init_math(hinstDLL);
 115     msvcrt_init_io();
 116     msvcrt_init_console();
 117     msvcrt_init_args();
 118     msvcrt_init_signals();
 119 #if _MSVCR_VER >= 100 && _MSVCR_VER <= 120
 120     msvcrt_init_scheduler(hinstDLL);
 121 #endif
 122 #if _MSVCR_VER == 0
 123     /* don't allow unloading msvcrt, we can't setup file handles twice */
 124     LdrAddRefDll( LDR_ADDREF_DLL_PIN, hinstDLL );
 125 #elif _MSVCR_VER >= 80
 126     _set_printf_count_output(0);
 127 #endif
 128     msvcrt_init_clock();
 129     TRACE("finished process init\n");
 130     break;
 131   case DLL_THREAD_ATTACH:
 132     break;
 133   case DLL_PROCESS_DETACH:
 134     msvcrt_free_io();
 135     if (lpvReserved) break;
 136     msvcrt_free_popen_data();
 137     msvcrt_free_locks();
 138     msvcrt_free_console();
 139     msvcrt_free_args();
 140     msvcrt_free_signals();
 141     msvcrt_free_tls_mem();
 142     if (!msvcrt_free_tls())
 143       return FALSE;
 144     _free_locale(MSVCRT_locale);
 145 #if _MSVCR_VER >= 100 && _MSVCR_VER <= 120
 146     msvcrt_free_scheduler_thread();
 147     msvcrt_free_scheduler();
 148 #endif
 149     msvcrt_destroy_heap();
 150     TRACE("finished process free\n");
 151     break;
 152   case DLL_THREAD_DETACH:
 153     msvcrt_free_tls_mem();
 154 #if _MSVCR_VER >= 100 && _MSVCR_VER <= 120
 155     msvcrt_free_scheduler_thread();
 156 #endif
 157     TRACE("finished thread free\n");
 158     break;
 159   }
 160   return TRUE;
 161 }