74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* Copyright 2008-2012 Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _SYS_MMAN_H
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#define _SYS_MMAN_H
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#include <sys/cdefs.h>
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#include <sys/types.h>
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/* memory protection for mmap() and others; assignment compatible with
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B_{READ,WRITE,EXECUTE}_AREA */
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#define PROT_READ 0x01
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#define PROT_WRITE 0x02
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#define PROT_EXEC 0x04
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#define PROT_NONE 0x00
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/* mmap() flags */
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#define MAP_SHARED 0x01 /* changes are seen by others */
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#define MAP_PRIVATE 0x02 /* changes are only seen by caller */
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#define MAP_FIXED 0x04 /* require mapping to specified addr */
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#define MAP_ANONYMOUS 0x08 /* no underlying object */
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#define MAP_ANON MAP_ANONYMOUS
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#define MAP_NORESERVE 0x10 /* don't commit memory */
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/* mmap() error return code */
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#define MAP_FAILED ((void*)-1)
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/* msync() flags */
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#define MS_ASYNC 0x01
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#define MS_SYNC 0x02
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#define MS_INVALIDATE 0x04
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/* madvise() values */
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#define MADV_NORMAL 1
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#define MADV_SEQUENTIAL 2
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#define MADV_RANDOM 3
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#define MADV_WILLNEED 4
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#define MADV_DONTNEED 5
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#define MADV_FREE 6
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/* posix_madvise() values */
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#define POSIX_MADV_NORMAL MADV_NORMAL
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#define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
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#define POSIX_MADV_RANDOM MADV_RANDOM
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#define POSIX_MADV_WILLNEED MADV_WILLNEED
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#define POSIX_MADV_DONTNEED MADV_DONTNEED
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__BEGIN_DECLS
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void* mmap(void* address, size_t length, int protection, int flags,
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int fd, off_t offset);
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int munmap(void* address, size_t length);
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int mprotect(void* address, size_t length, int protection);
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int msync(void* address, size_t length, int flags);
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int madvise(void* address, size_t length, int advice);
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int posix_madvise(void* address, size_t length, int advice);
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int mlock(const void* address, size_t length);
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int munlock(const void* address, size_t length);
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int shm_open(const char* name, int openMode, mode_t permissions);
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int shm_unlink(const char* name);
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__END_DECLS
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#endif /* _SYS_MMAN_H */
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