1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef FRAMEWORKS_FENCE_INCLUDE_FENCE_H
17 #define FRAMEWORKS_FENCE_INCLUDE_FENCE_H
18 
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22 
23 enum FenceStatus {
24     ERROR, ACTIVE, SIGNALED
25 };
26 
27 bool IsSupportSwSync(void);
28 int CreateTimeline(void);
29 int CreateFenceFromTimeline(int timeline, const char* name, unsigned int totalSteps);
30 int FenceHold(int fd, int timeout);
31 int TimelineActivate(int timeline, unsigned int step);
32 enum FenceStatus FenceGetStatus(int fd);
33 int FenceMerge(const char* name, int fd1, int fd2);
34 
35 #ifdef __cplusplus
36 }
37 
38 #endif
39 #endif // FRAMEWORKS_FENCE_INCLUDE_FENCE_H
40