blob: 96d87954735de2120f2f6a3aa7ecc9c94242dcb9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_map_h__
#define INCLUDE_map_h__
#include "common.h"
/* p_mmap() prot values */
#define GIT_PROT_NONE 0x0
#define GIT_PROT_READ 0x1
#define GIT_PROT_WRITE 0x2
#define GIT_PROT_EXEC 0x4
/* git__mmmap() flags values */
#define GIT_MAP_FILE 0
#define GIT_MAP_SHARED 1
#define GIT_MAP_PRIVATE 2
#define GIT_MAP_TYPE 0xf
#define GIT_MAP_FIXED 0x10
typedef struct { /* memory mapped buffer */
void *data; /* data bytes */
size_t len; /* data length */
#ifdef GIT_WIN32
HANDLE fmh; /* file mapping handle */
#endif
} git_map;
#define GIT_MMAP_VALIDATE(out, len, prot, flags) do { \
assert(out != NULL && len > 0); \
assert((prot & GIT_PROT_WRITE) || (prot & GIT_PROT_READ)); \
assert((flags & GIT_MAP_FIXED) == 0); } while (0)
extern int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, git_off_t offset);
extern int p_munmap(git_map *map);
#endif /* INCLUDE_map_h__ */
|
