The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* cutils/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 _CUTILS_ASHMEM_H |
| 11 | #define _CUTILS_ASHMEM_H |
| 12 | |
Carl Shapiro | 143b370 | 2010-02-12 12:45:28 -0800 | [diff] [blame] | 13 | #include <stddef.h> |
Mathias Agopian | 1d3faaf | 2009-04-10 14:24:31 -0700 | [diff] [blame] | 14 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 15 | #ifdef __cplusplus |
| 16 | extern "C" { |
| 17 | #endif |
| 18 | |
| 19 | int ashmem_create_region(const char *name, size_t size); |
| 20 | int ashmem_set_prot_region(int fd, int prot); |
| 21 | int ashmem_pin_region(int fd, size_t offset, size_t len); |
| 22 | int ashmem_unpin_region(int fd, size_t offset, size_t len); |
Bjorn Bringert | 7be52b1 | 2009-06-02 00:41:09 +0100 | [diff] [blame] | 23 | int ashmem_get_size_region(int fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 24 | |
| 25 | #ifdef __cplusplus |
| 26 | } |
| 27 | #endif |
| 28 | |
| 29 | #ifndef __ASHMEMIOC /* in case someone included <linux/ashmem.h> too */ |
| 30 | |
| 31 | #define ASHMEM_NAME_LEN 256 |
| 32 | |
| 33 | #define ASHMEM_NAME_DEF "dev/ashmem" |
| 34 | |
| 35 | /* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */ |
| 36 | #define ASHMEM_NOT_PURGED 0 |
| 37 | #define ASHMEM_WAS_PURGED 1 |
| 38 | |
| 39 | /* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */ |
| 40 | #define ASHMEM_IS_UNPINNED 0 |
| 41 | #define ASHMEM_IS_PINNED 1 |
| 42 | |
| 43 | #endif /* ! __ASHMEMIOC */ |
| 44 | |
| 45 | #endif /* _CUTILS_ASHMEM_H */ |