source/front-end/src/osal_dynamiclib_win32.c

   1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   2  *   Mupen64plus-ui-console - osal_dynamiclib_win32.c                      *
   3  *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
   4  *   Copyright (C) 2009 Richard Goedeken                                   *
   5  *                                                                         *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  10  *                                                                         *
  11  *   This program 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         *
  14  *   GNU General Public License for more details.                          *
  15  *                                                                         *
  16  *   You should have received a copy of the GNU General Public License     *
  17  *   along with this program; if not, write to the                         *
  18  *   Free Software Foundation, Inc.,                                       *
  19  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
  20  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  21
  22 #include <windows.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25
  26 #include "main.h"
  27 #include "m64p_types.h"
  28 #include "osal_dynamiclib.h"
  29
  30 m64p_error osal_dynlib_open(m64p_dynlib_handle *pLibHandle, const char *pccLibraryPath)
  31 {
  32     if (pLibHandle == NULL || pccLibraryPath == NULL)
  33         return M64ERR_INPUT_ASSERT;
  34
  35     *pLibHandle = LoadLibrary(pccLibraryPath);
  36
  37     if (*pLibHandle == NULL)
  38     {
  39         char *pchErrMsg;
  40         DWORD dwErr = GetLastError();
  41         FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, dwErr,
  42                       MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &pchErrMsg, 0, NULL);
  43         DebugMessage(M64MSG_ERROR, "LoadLibrary('%s') error: %s", pccLibraryPath, pchErrMsg);
  44         LocalFree(pchErrMsg);
  45         return M64ERR_INPUT_NOT_FOUND;
  46     }
  47
  48     return M64ERR_SUCCESS;
  49 }
  50
  51 void * osal_dynlib_getproc(m64p_dynlib_handle LibHandle, const char *pccProcedureName)
  52 {
  53     if (pccProcedureName == NULL)
  54         return NULL;
  55
  56     return GetProcAddress(LibHandle, pccProcedureName);
  57 }
  58
  59 m64p_error osal_dynlib_close(m64p_dynlib_handle LibHandle)
  60 {
  61     int rval = FreeLibrary(LibHandle);
  62
  63     if (rval == 0)
  64     {
  65         char *pchErrMsg;
  66         DWORD dwErr = GetLastError();
  67         FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, dwErr,
  68                       MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &pchErrMsg, 0, NULL);
  69         DebugMessage(M64MSG_ERROR, "FreeLibrary() error: %s", pchErrMsg);
  70         LocalFree(pchErrMsg);
  71         return M64ERR_INTERNAL;
  72     }
  73
  74     return M64ERR_SUCCESS;
  75 }