3 ** Copyright 2008 The Android Open Source Project
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.
10 #ifndef _CUTILS_ASHMEM_H
11 #define _CUTILS_ASHMEM_H
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
);
23 int ashmem_get_size_region(int fd
);
29 #ifndef __ASHMEMIOC /* in case someone included <linux/ashmem.h> too */
31 #define ASHMEM_NAME_LEN 256
33 #define ASHMEM_NAME_DEF "dev/ashmem"
35 /* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
36 #define ASHMEM_NOT_PURGED 0
37 #define ASHMEM_WAS_PURGED 1
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
43 #endif /* ! __ASHMEMIOC */
45 #endif /* _CUTILS_ASHMEM_H */