| The Android Open Source Project | cbb1011 | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* utils/ashmem.h |
| 2 | ** |
| 3 | ** Copyright 2008 The Android Open Source Project |
| 4 | ** |
| 5 | ** This file is dual licensed. It may be redistributed and/or modified |
| 6 | ** under the terms of the Apache 2.0 License OR version 2 of the GNU |
| 7 | ** General Public License. |
| 8 | */ |
| 9 | |
| 10 | #ifndef _UTILS_ASHMEM_H |
| 11 | #define _UTILS_ASHMEM_H |
| 12 | |
| 13 | #include <linux/limits.h> |
| 14 | #include <linux/ioctl.h> |
| 15 | |
| 16 | #define ASHMEM_NAME_LEN 256 |
| 17 | |
| 18 | #define ASHMEM_NAME_DEF "dev/ashmem" |
| 19 | |
| 20 | /* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */ |
| 21 | #define ASHMEM_NOT_REAPED 0 |
| 22 | #define ASHMEM_WAS_REAPED 1 |
| 23 | |
| 24 | /* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */ |
| 25 | #define ASHMEM_NOW_UNPINNED 0 |
| 26 | #define ASHMEM_NOW_PINNED 1 |
| 27 | |
| 28 | #define __ASHMEMIOC 0x77 |
| 29 | |
| 30 | #define ASHMEM_SET_NAME _IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN]) |
| 31 | #define ASHMEM_GET_NAME _IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN]) |
| 32 | #define ASHMEM_SET_SIZE _IOW(__ASHMEMIOC, 3, size_t) |
| 33 | #define ASHMEM_GET_SIZE _IO(__ASHMEMIOC, 4) |
| 34 | #define ASHMEM_SET_PROT_MASK _IOW(__ASHMEMIOC, 5, unsigned long) |
| 35 | #define ASHMEM_GET_PROT_MASK _IO(__ASHMEMIOC, 6) |
| 36 | #define ASHMEM_PIN _IO(__ASHMEMIOC, 7) |
| 37 | #define ASHMEM_UNPIN _IO(__ASHMEMIOC, 8) |
| 38 | #define ASHMEM_ISPINNED _IO(__ASHMEMIOC, 9) |
| 39 | #define ASHMEM_PURGE_ALL_CACHES _IO(__ASHMEMIOC, 10) |
| 40 | |
| 41 | #endif /* _UTILS_ASHMEM_H */ |