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/*
* Copyright 2008 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef _CUTILS_ASHMEM_H
#define _CUTILS_ASHMEM_H
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
int ashmem_create_region(const char *name, size_t size);
int ashmem_set_prot_region(int fd, int prot);
int ashmem_pin_region(int fd, size_t offset, size_t len);
int ashmem_unpin_region(int fd, size_t offset, size_t len);
int ashmem_get_size_region(int fd);
int ashmem_purge_all_caches(int fd);
#ifdef __cplusplus
}
#endif
#ifndef __ASHMEMIOC /* in case someone included <linux/ashmem.h> too */
#define ASHMEM_NAME_LEN 256
#define ASHMEM_NAME_DEF "dev/ashmem"
/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
#define ASHMEM_NOT_PURGED 0
#define ASHMEM_WAS_PURGED 1
/* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */
#define ASHMEM_IS_UNPINNED 0
#define ASHMEM_IS_PINNED 1
#endif /* ! __ASHMEMIOC */
#endif /* _CUTILS_ASHMEM_H */
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