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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* 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 "git2_util.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
#ifdef __amigaos4__
#define MAP_FAILED 0
#endif
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 { \
GIT_ASSERT(out != NULL && len > 0); \
GIT_ASSERT((prot & GIT_PROT_WRITE) || (prot & GIT_PROT_READ)); \
GIT_ASSERT((flags & GIT_MAP_FIXED) == 0); } while (0)
extern int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, off64_t offset);
extern int p_munmap(git_map *map);
#endif
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