include/babeltrace2/compat/mman-internal.h

   1 #ifndef _BABELTRACE_COMPAT_MMAN_H
   2 #define _BABELTRACE_COMPAT_MMAN_H
   3
   4 /*
   5  * Copyright (C) 2015-2016  Michael Jeanson <mjeanson@efficios.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #ifdef __MINGW32__
  27
  28 #include <sys/types.h>
  29
  30 #define PROT_NONE       0x0
  31 #define PROT_READ       0x1
  32 #define PROT_WRITE      0x2
  33 #define PROT_EXEC       0x4
  34
  35 #define MAP_FILE        0
  36 #define MAP_SHARED      1
  37 #define MAP_PRIVATE     2
  38 #define MAP_TYPE        0xF
  39 #define MAP_FIXED       0x10
  40 #define MAP_ANONYMOUS   0x20
  41 #define MAP_ANON        MAP_ANONYMOUS
  42 #define MAP_FAILED      ((void *) -1)
  43
  44 /*
  45  * Note that some platforms (e.g. Windows) do not allow read-only
  46  * mappings to exceed the file's size (even within a page).
  47  */
  48 void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd,
  49         off_t offset);
  50
  51 int bt_munmap(void *addr, size_t length);
  52
  53 #else /* __MINGW32__ */
  54
  55 #include <sys/mman.h>
  56
  57 static inline
  58 void *bt_mmap(void *addr, size_t length, int prot, int flags, int fd,
  59         off_t offset)
  60 {
  61         return (void *) mmap(addr, length, prot, flags, fd, offset);
  62 }
  63
  64 static inline
  65 int bt_munmap(void *addr, size_t length)
  66 {
  67         return munmap(addr, length);
  68 }
  69 #endif /* __MINGW32__ */
  70
  71 #ifndef MAP_ANONYMOUS
  72 # ifdef MAP_ANON
  73 #   define MAP_ANONYMOUS MAP_ANON
  74 # endif
  75 #endif
  76
  77 #endif /* _BABELTRACE_COMPAT_MMAN_H */