osdep/mmap.h

   1 /*
   2  * mmap declaration header for systems with missing/nonfunctional sys/mman.h
   3  *
   4  * Copyright (c) 2008 KO Myung-Hun (komh@chollian.net)
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #ifndef MPLAYER_MMAP_H
  24 #define MPLAYER_MMAP_H
  25
  26 #include <sys/types.h>
  27
  28 /*
  29  * Protections are chosen from these bits, or-ed together
  30  */
  31 #define PROT_NONE   0x00 /* no permissions */
  32 #define PROT_READ   0x01 /* pages can be read */
  33 #define PROT_WRITE  0x02 /* pages can be written */
  34 #define PROT_EXEC   0x04 /* pages can be executed */
  35
  36 /*
  37  * Flags contain sharing type and options.
  38  * Sharing types; choose one.
  39  */
  40 #define MAP_SHARED  0x0001  /* share changes */
  41 #define MAP_PRIVATE 0x0002  /* changes are private */
  42 #define MAP_FIXED   0x0010  /* map addr must be exactly as requested */
  43
  44 /*
  45  * Mapping type
  46  */
  47 #define MAP_ANON    0x1000  /* allocated from memory, swap space */
  48
  49 /* MAP_FAILED is defined in config.h */
  50
  51 #ifndef _MMAP_DECLARED
  52 #define _MMAP_DECLARED
  53 void *mmap( void *addr, size_t len, int prot, int flags, int fildes, off_t off );
  54 #endif
  55 int   munmap( void *addr, size_t len );
  56 int   mprotect( void *addr, size_t len, int prot );
  57
  58 #endif /* MPLAYER_MMAP_H */