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/*
* sync.h
*
* Copyright 2012 Google, Inc
*
* 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 __SYS_CORE_SYNC_H
#define __SYS_CORE_SYNC_H
#include <sys/cdefs.h>
#include <stdint.h>
__BEGIN_DECLS
// XXX: These structs are copied from the header "linux/sync.h".
struct sync_fence_info_data {
uint32_t len;
char name[32];
int32_t status;
uint8_t pt_info[0];
};
struct sync_pt_info {
uint32_t len;
char obj_name[32];
char driver_name[32];
int32_t status;
uint64_t timestamp_ns;
uint8_t driver_data[0];
};
/* timeout in msecs */
int sync_wait(int fd, int timeout);
int sync_merge(const char *name, int fd1, int fd2);
struct sync_fence_info_data *sync_fence_info(int fd);
struct sync_pt_info *sync_pt_info(struct sync_fence_info_data *info,
struct sync_pt_info *itr);
void sync_fence_info_free(struct sync_fence_info_data *info);
/* sw_sync is mainly inteded for testing and should not be complied into
* production kernels
*/
int sw_sync_timeline_create(void);
int sw_sync_timeline_inc(int fd, unsigned count);
int sw_sync_fence_create(int fd, const char *name, unsigned value);
__END_DECLS
#endif /* __SYS_CORE_SYNC_H */