/* wvWare
 * Copyright (C) Caolan McNamara, Dom Lachowicz, and others
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#if defined _WIN32
#include "winmmap.h"
#include <windows.h>
/*mmap section got from imagick sources*/
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+  m m a p                                                                    %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Method mmap emulates the Unix method of the same name.
%
%  The format of the mmap method is:
%
%    MagickExport void *mmap(char *address,size_t length,int protection,
%      int access,int file,gsf_off_t offset)
%
%
*/
void *mmap(char *address,size_t length,int protection,int access,
  int file,gsf_off_t offset)
{
  void
    *map;

  HANDLE
    handle;

  map=(void *) NULL;
  handle=INVALID_HANDLE_VALUE;
  switch (protection)
  {
    case PROT_READ:
    default:
    {
      handle=CreateFileMapping((HANDLE) _get_osfhandle(file),0,PAGE_READONLY,0,
        length,0);
      if (!handle)
        break;
      map=(void *) MapViewOfFile(handle,FILE_MAP_READ,0,0,length);
      CloseHandle(handle);
      break;
    }
    case PROT_WRITE:
    {
      handle=CreateFileMapping((HANDLE) _get_osfhandle(file),0,PAGE_READWRITE,0,
        length,0);
      if (!handle)
        break;
      map=(void *) MapViewOfFile(handle,FILE_MAP_WRITE,0,0,length);
      CloseHandle(handle);
      break;
    }
    case PROT_READWRITE:
    {
      handle=CreateFileMapping((HANDLE) _get_osfhandle(file),0,PAGE_READWRITE,0,
        length,0);
      if (!handle)
        break;
      map=(void *) MapViewOfFile(handle,FILE_MAP_ALL_ACCESS,0,0,length);
      CloseHandle(handle);
      break;
    }
  }
  if (map == (void *) NULL)
    return((void *) MAP_FAILED);
  return((void *) ((char *) map+offset));
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+  m u n m a p                                                                %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Method munmap emulates the Unix method with the same name.
%
%  The format of the munmap method is:
%
%      int munmap(void *map,size_t length)
%
%  A description of each parameter follows:
%
%    o status:  Method munmap returns 0 on success; otherwise, it
%      returns -1 and sets errno to indicate the error.
%
%    o map: The address of the binary large object.
%
%    o length: The length of the binary large object.
%
%
*/
int munmap(void *map,size_t length)
{
  if (!UnmapViewOfFile(map))
    return(-1);
  return(0);
}
#else

typedef int elegant;

#endif