11320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci/* third_party/ashmem/ashmem.h 21320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ** 31320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ** Copyright 2008 The Android Open Source Project 41320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ** 51320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ** This file is dual licensed. It may be redistributed and/or modified 61320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ** under the terms of the Apache 2.0 License OR version 2 of the GNU 71320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci ** General Public License. 81320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci */ 91320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 101320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#ifndef _THIRD_PARTY_ASHMEM_H 111320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define _THIRD_PARTY_ASHMEM_H 121320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 131320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#include <stddef.h> 141320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 151320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#ifdef __cplusplus 161320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciextern "C" { 171320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#endif 181320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 191320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciint ashmem_create_region(const char *name, size_t size); 201320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciint ashmem_set_prot_region(int fd, int prot); 211320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciint ashmem_pin_region(int fd, size_t offset, size_t len); 221320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciint ashmem_unpin_region(int fd, size_t offset, size_t len); 231320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciint ashmem_get_size_region(int fd); 241320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucciint ashmem_purge_all(void); 251320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 261320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#ifdef __cplusplus 271320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci} 281320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#endif 291320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 301320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#ifndef __ASHMEMIOC /* in case someone included <linux/ashmem.h> too */ 311320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 321320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define ASHMEM_NAME_LEN 256 331320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 341320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define ASHMEM_NAME_DEF "dev/ashmem" 351320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 361320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */ 371320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define ASHMEM_NOT_PURGED 0 381320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define ASHMEM_WAS_PURGED 1 391320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 401320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci/* Return values from ASHMEM_UNPIN: Is the mapping now pinned or unpinned? */ 411320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define ASHMEM_IS_UNPINNED 0 421320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#define ASHMEM_IS_PINNED 1 431320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 441320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#endif /* ! __ASHMEMIOC */ 451320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci 461320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#endif /* _THIRD_PARTY_ASHMEM_H */ 47