1 /* 2 * Copyright 2018 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef API_TASK_QUEUE_QUEUED_TASK_H_ 11 #define API_TASK_QUEUE_QUEUED_TASK_H_ 12 13 namespace webrtc { 14 15 // Base interface for asynchronously executed tasks. 16 // The interface basically consists of a single function, Run(), that executes 17 // on the target queue. For more details see the Run() method and TaskQueue. 18 class QueuedTask { 19 public: 20 virtual ~QueuedTask() = default; 21 22 // Main routine that will run when the task is executed on the desired queue. 23 // The task should return |true| to indicate that it should be deleted or 24 // |false| to indicate that the queue should consider ownership of the task 25 // having been transferred. Returning |false| can be useful if a task has 26 // re-posted itself to a different queue or is otherwise being re-used. 27 virtual bool Run() = 0; 28 }; 29 30 } // namespace webrtc 31 32 #endif // API_TASK_QUEUE_QUEUED_TASK_H_ 33