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_DEFAULT_PLATFORM_H_
6#define V8_LIBPLATFORM_DEFAULT_PLATFORM_H_
7
8#include <map>
9#include <queue>
10#include <vector>
11
12#include "include/v8-platform.h"
13#include "src/base/macros.h"
14#include "src/base/platform/mutex.h"
15#include "src/libplatform/task-queue.h"
16
17namespace v8 {
18namespace platform {
19
20class TaskQueue;
21class Thread;
22class WorkerThread;
23
24class DefaultPlatform : public Platform {
25 public:
26  DefaultPlatform();
27  virtual ~DefaultPlatform();
28
29  void SetThreadPoolSize(int thread_pool_size);
30
31  void EnsureInitialized();
32
33  bool PumpMessageLoop(v8::Isolate* isolate);
34
35  // v8::Platform implementation.
36  virtual void CallOnBackgroundThread(
37      Task* task, ExpectedRuntime expected_runtime) OVERRIDE;
38  virtual void CallOnForegroundThread(v8::Isolate* isolate,
39                                      Task* task) OVERRIDE;
40
41 private:
42  static const int kMaxThreadPoolSize;
43
44  base::Mutex lock_;
45  bool initialized_;
46  int thread_pool_size_;
47  std::vector<WorkerThread*> thread_pool_;
48  TaskQueue queue_;
49  std::map<v8::Isolate*, std::queue<Task*> > main_thread_queue_;
50
51  DISALLOW_COPY_AND_ASSIGN(DefaultPlatform);
52};
53
54
55} }  // namespace v8::platform
56
57
58#endif  // V8_LIBPLATFORM_DEFAULT_PLATFORM_H_
59