1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_CHILD_WORKER_THREAD_TASK_RUNNER_H_ 6 #define CONTENT_CHILD_WORKER_THREAD_TASK_RUNNER_H_ 7 8 #include "base/task_runner.h" 9 10 namespace content { 11 12 // A task runner that runs tasks on a single webkit worker thread which 13 // is managed by WorkerTaskRunner. 14 // Note that this implementation ignores the delay duration for PostDelayedTask 15 // and have it behave the same as PostTask. 16 class WorkerThreadTaskRunner : public base::TaskRunner { 17 public: 18 explicit WorkerThreadTaskRunner(int worker_thread_id); 19 20 // Gets the WorkerThreadTaskRunner for the current worker thread. 21 // This returns non-null value only when it is called on a worker thread. 22 static scoped_refptr<WorkerThreadTaskRunner> current(); 23 24 // TaskRunner overrides. 25 virtual bool PostDelayedTask(const tracked_objects::Location& from_here, 26 const base::Closure& task, 27 base::TimeDelta delay) OVERRIDE; 28 virtual bool RunsTasksOnCurrentThread() const OVERRIDE; 29 30 protected: 31 virtual ~WorkerThreadTaskRunner(); 32 33 private: 34 const int worker_thread_id_; 35 }; 36 37 } // namespace content 38 39 #endif // CONTENT_CHILD_WORKER_THREAD_TASK_RUNNER_H_ 40