task_runners.h revision f2477e01787aa58f445919b809d89e252beef54f 
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 MOJO_SHELL_TASK_RUNNERS_H_
6#define MOJO_SHELL_TASK_RUNNERS_H_
7
8#include "base/memory/scoped_ptr.h"
9#include "base/message_loop/message_loop_proxy.h"
10#include "base/threading/thread.h"
11
12namespace mojo {
13namespace shell {
14
15// A context object that contains the common task runners for the shell
16class TaskRunners {
17 public:
18  explicit TaskRunners(base::SingleThreadTaskRunner* ui_runner);
19  ~TaskRunners();
20
21  base::SingleThreadTaskRunner* ui_runner() const {
22    return ui_runner_.get();
23  }
24
25  base::SingleThreadTaskRunner* io_runner() const {
26    return io_thread_->message_loop_proxy();
27  }
28
29  base::SingleThreadTaskRunner* file_runner() const {
30    return file_thread_->message_loop_proxy();
31  }
32
33  base::MessageLoopProxy* cache_runner() const {
34    return cache_thread_->message_loop_proxy();
35  }
36
37#if defined(OS_ANDROID)
38  void set_java_runner(base::SingleThreadTaskRunner* java_runner) {
39    java_runner_ = java_runner;
40  }
41
42  base::SingleThreadTaskRunner* java_runner() const {
43    return java_runner_.get();
44  }
45#endif // defined(OS_ANDROID)
46
47 private:
48  scoped_refptr<base::SingleThreadTaskRunner> ui_runner_;
49  scoped_ptr<base::Thread> cache_thread_;
50  scoped_ptr<base::Thread> io_thread_;
51  scoped_ptr<base::Thread> file_thread_;
52
53#if defined(OS_ANDROID)
54  scoped_refptr<base::SingleThreadTaskRunner> java_runner_;
55#endif // defined(OS_ANDROID)
56
57  DISALLOW_COPY_AND_ASSIGN(TaskRunners);
58};
59
60}  // namespace shell
61}  // namespace mojo
62
63#endif  // MOJO_SHELL_TASK_RUNNERS_H_
64