| 1 | /* sys/mman.h: Memory management declarations.
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| 2 | */
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| 3 |
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| 4 | #ifndef _SYSMMAN_
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| 5 | #define _SYSMMAN_
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| 6 |
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| 7 | /* Types */
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| 8 | typedef int mode_t;
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| 9 | typedef long off_t;
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| 10 | typedef unsigned long int size_t;
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| 11 | typedef struct posix_typed_mem_info posix_typed_mem_info;
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| 12 |
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| 13 | /* Macros */
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| 14 | #define PROT_READ 0x04 /* pages can be read */
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| 15 | #define PROT_WRITE 0x02 /* pages can be written */
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| 16 | #define PROT_EXEC 0x01 /* pages can be executed */
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| 17 | #define PROT_NONE 0x00 /* page cannot be accessed */
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| 18 |
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| 19 | #define MAP_FIXED 0x0100 /* map addr must be exactly as requested */
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| 20 | #define MAP_PRIVATE 0x0000 /* changes are private */
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| 21 | #define MAP_SHARED 0x0010 /* share changes */
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| 22 | #define MS_ASYNC 0x0800 /* perform asynchronous writes. */
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| 23 | #define MS_INVALIDATE 0x0200 /* invalidate mappings. */
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| 24 | #define MS_SYNC 0x0400 /* perform synchronous writes. */
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| 25 |
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| 26 | #define MCL_CURRENT 0x0001 /* lock currently mapped pages. */
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| 27 | #define MCL_FUTURE 0x0020 /* lock pages that become mapped. */
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| 28 |
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| 29 | #define POSIX_MADV_NORMAL 0 /* no further special treatment */
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| 30 | #define POSIX_MADV_RANDOM 1 /* expect random page refs */
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| 31 | #define POSIX_MADV_SEQUENTIAL 2 /* expect sequential page refs */
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| 32 | #define POSIX_MADV_WILLNEED 3 /* will need these pages */
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| 33 | #define POSIX_MADV_DONTNEED 4 /* dont need these pages */
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| 34 |
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| 35 | #define POSIX_TYPED_MEM_ALLOCATE 5 /* allocate on mmap(). */
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| 36 | #define POSIX_TYPED_MEM_ALLOCATE_CONTIG 6 /* allocate contiguously on mmap()*/
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| 37 | #define POSIX_TYPED_MEM_MAP_ALLOCATABLE 7 /* map on mmap(), without affecting allocatability.*/
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| 38 |
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| 39 | /* Functions */
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| 40 | int mlock(const void *, size_t);
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| 41 | int mlockall(int);
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| 42 | void *mmap(void *, size_t, int, int, int, off_t);
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| 43 | int mprotect(void *, size_t, int);
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| 44 | int msync(void *, size_t, int);
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| 45 | int munlock(const void *, size_t);
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| 46 | int munlockall(void);
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| 47 | int munmap(void *, size_t);
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| 48 | int posix_madvise(void *, size_t, int);
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| 49 | int posix_mem_offset(const void *restrict, size_t, off_t *restrict,
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| 50 | size_t *restrict, int *restrict);
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| 51 | int posix_typed_mem_get_info(int, struct posix_typed_mem_info *);
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| 52 | int posix_typed_mem_open(const char *, int, int);
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| 53 | int shm_open(const char *, int, mode_t);
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| 54 | int shm_unlink(const char *);
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| 55 |
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| 56 | #endif
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