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/*
* avsystem
*
* Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
*
* Contact: Jonghyuk Choi <jhchoi.choi@samsung.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef __AVSYS_COMMON_H__
#define __AVSYS_COMMON_H__
#include <stdlib.h>
#include <sys/syscall.h>
#ifdef __cplusplus
extern "C" {
#endif
#define EXPORT_API __attribute__((__visibility__("default")))
#define AVSYS_MAGIC_START "TSVA"
#define AVSYS_MAGIC_END "NEVA"
#define AVSYS_KEY_PREFIX_AUDIO 0x10
#define AVSYS_KEY_PREFIX_GEN(X,Y) ((X) + (Y))
typedef struct {
char *key_path;
int key_prefix;
int size;
} avsys_shm_param_t;
typedef struct {
char *key_path;
int key_prefix;
} avsys_sync_param_t;
#define LOCK_TIMEOUT_SEC 6
/* get thread id : Not implemented 'gettid' at system libs. */
#define avsys_gettid() (long int)syscall(__NR_gettid)
/* memory */
void * avsys_malloc(size_t size);
void avsys_free(void *ptr);
#define avsys_mem_check(ptr) ( (memcmp(AVSYS_MAGIC_START, ((char*)(ptr))-8, 4) == 0) && \
(memcmp(AVSYS_MAGIC_END, ((char*)(ptr))+(*((int*)((ptr)-4))), 4) == 0) )
/* shared memory */
int avsys_create_shm(const avsys_shm_param_t* param);
int avsys_remove_shm(const avsys_shm_param_t* param);
void* avsys_get_shm(const avsys_shm_param_t* param);
/* Sync object */
int avsys_create_sync(const avsys_sync_param_t *param);
int avsys_remove_sync(const avsys_sync_param_t *param);
int avsys_lock_sync(const avsys_sync_param_t *param);
int avsys_unlock_sync(const avsys_sync_param_t *param);
/* Privilege */
int avsys_check_root_privilege(void);
#ifdef __cplusplus
}
#endif
#endif /* __AVSYS_COMMON_H__ */
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