|  | /* | 
|  | *  Copyright 2016 The WebRTC Project Authors. All rights reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #ifndef RTC_BASE_TASK_QUEUE_POSIX_H_ | 
|  | #define RTC_BASE_TASK_QUEUE_POSIX_H_ | 
|  |  | 
|  | #include <pthread.h> | 
|  |  | 
|  | namespace rtc { | 
|  |  | 
|  | class TaskQueue; | 
|  |  | 
|  | namespace internal { | 
|  |  | 
|  | class AutoSetCurrentQueuePtr { | 
|  | public: | 
|  | explicit AutoSetCurrentQueuePtr(TaskQueue* q); | 
|  | ~AutoSetCurrentQueuePtr(); | 
|  |  | 
|  | private: | 
|  | TaskQueue* const prev_; | 
|  | }; | 
|  |  | 
|  | pthread_key_t GetQueuePtrTls(); | 
|  |  | 
|  | }  // namespace internal | 
|  | }  // namespace rtc | 
|  |  | 
|  | #endif  // RTC_BASE_TASK_QUEUE_POSIX_H_ |