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https://git.proxmox.com/git/libgit2
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62e562f92b
Use size_t for page size, instead of long. Check result of sysconf. Use size_t for page offset so no cast to size_t (second arg to p_mmap). Use mod instead div/mult pair, so no cast to size_t is necessary.
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_map_h__
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#define INCLUDE_map_h__
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#include "common.h"
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/* p_mmap() prot values */
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#define GIT_PROT_NONE 0x0
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#define GIT_PROT_READ 0x1
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#define GIT_PROT_WRITE 0x2
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#define GIT_PROT_EXEC 0x4
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/* git__mmmap() flags values */
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#define GIT_MAP_FILE 0
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#define GIT_MAP_SHARED 1
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#define GIT_MAP_PRIVATE 2
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#define GIT_MAP_TYPE 0xf
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#define GIT_MAP_FIXED 0x10
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#ifdef __amigaos4__
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#define MAP_FAILED 0
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#endif
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typedef struct { /* memory mapped buffer */
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void *data; /* data bytes */
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size_t len; /* data length */
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#ifdef GIT_WIN32
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HANDLE fmh; /* file mapping handle */
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#endif
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} git_map;
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#define GIT_MMAP_VALIDATE(out, len, prot, flags) do { \
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assert(out != NULL && len > 0); \
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assert((prot & GIT_PROT_WRITE) || (prot & GIT_PROT_READ)); \
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assert((flags & GIT_MAP_FIXED) == 0); } while (0)
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extern int p_mmap(git_map *out, size_t len, int prot, int flags, int fd, git_off_t offset);
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extern int p_munmap(git_map *map);
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#endif /* INCLUDE_map_h__ */
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