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 */ 42