|  | /* | 
|  | *  sync abstraction | 
|  | *  Copyright 2015-2016 Collabora Ltd. | 
|  | * | 
|  | *  Based on the implementation from the Android Open Source Project, | 
|  | * | 
|  | *  Copyright 2012 Google, Inc | 
|  | * | 
|  | *  Permission is hereby granted, free of charge, to any person obtaining a | 
|  | *  copy of this software and associated documentation files (the "Software"), | 
|  | *  to deal in the Software without restriction, including without limitation | 
|  | *  the rights to use, copy, modify, merge, publish, distribute, sublicense, | 
|  | *  and/or sell copies of the Software, and to permit persons to whom the | 
|  | *  Software is furnished to do so, subject to the following conditions: | 
|  | * | 
|  | *  The above copyright notice and this permission notice shall be included in | 
|  | *  all copies or substantial portions of the Software. | 
|  | * | 
|  | *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
|  | *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
|  | *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | 
|  | *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | 
|  | *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | 
|  | *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | 
|  | *  OTHER DEALINGS IN THE SOFTWARE. | 
|  | */ | 
|  |  | 
|  | #ifndef SELFTESTS_SYNC_H | 
|  | #define SELFTESTS_SYNC_H | 
|  |  | 
|  | #define FENCE_STATUS_ERROR	(-1) | 
|  | #define FENCE_STATUS_ACTIVE	(0) | 
|  | #define FENCE_STATUS_SIGNALED	(1) | 
|  |  | 
|  | int sync_wait(int fd, int timeout); | 
|  | int sync_merge(const char *name, int fd1, int fd2); | 
|  | int sync_fence_size(int fd); | 
|  | int sync_fence_count_with_status(int fd, int status); | 
|  |  | 
|  | #endif |