1// Copyright 2013 the V8 project 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 V8_LIBPLATFORM_TASK_QUEUE_H_
6#define V8_LIBPLATFORM_TASK_QUEUE_H_
7
8#include <queue>
9
10#include "src/base/macros.h"
11#include "src/base/platform/mutex.h"
12#include "src/base/platform/semaphore.h"
13
14namespace v8 {
15
16class Task;
17
18namespace platform {
19
20class TaskQueue {
21 public:
22  TaskQueue();
23  ~TaskQueue();
24
25  // Appends a task to the queue. The queue takes ownership of |task|.
26  void Append(Task* task);
27
28  // Returns the next task to process. Blocks if no task is available. Returns
29  // NULL if the queue is terminated.
30  Task* GetNext();
31
32  // Terminate the queue.
33  void Terminate();
34
35 private:
36  base::Mutex lock_;
37  base::Semaphore process_queue_semaphore_;
38  std::queue<Task*> task_queue_;
39  bool terminated_;
40
41  DISALLOW_COPY_AND_ASSIGN(TaskQueue);
42};
43
44} }  // namespace v8::platform
45
46
47#endif  // V8_LIBPLATFORM_TASK_QUEUE_H_
48