- add sources.
[platform/framework/web/crosswalk.git] / src / base / message_loop / message_loop_proxy_impl.h
1 // Copyright (c) 2012 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 BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
6 #define BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
7
8 #include "base/base_export.h"
9 #include "base/memory/ref_counted.h"
10 #include "base/message_loop/message_loop_proxy.h"
11 #include "base/pending_task.h"
12 #include "base/threading/platform_thread.h"
13
14 namespace base {
15 namespace internal {
16
17 class IncomingTaskQueue;
18
19 // A stock implementation of MessageLoopProxy that is created and managed by a
20 // MessageLoop. For now a MessageLoopProxyImpl can only be created as part of a
21 // MessageLoop.
22 class BASE_EXPORT MessageLoopProxyImpl : public MessageLoopProxy {
23  public:
24   explicit MessageLoopProxyImpl(
25       scoped_refptr<IncomingTaskQueue> incoming_queue);
26
27   // MessageLoopProxy implementation
28   virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
29                                const base::Closure& task,
30                                base::TimeDelta delay) OVERRIDE;
31   virtual bool PostNonNestableDelayedTask(
32       const tracked_objects::Location& from_here,
33       const base::Closure& task,
34       base::TimeDelta delay) OVERRIDE;
35   virtual bool RunsTasksOnCurrentThread() const OVERRIDE;
36
37  private:
38   friend class RefCountedThreadSafe<MessageLoopProxyImpl>;
39   virtual ~MessageLoopProxyImpl();
40
41   // THe incoming queue receiving all posted tasks.
42   scoped_refptr<IncomingTaskQueue> incoming_queue_;
43
44   // ID of the thread |this| was created on.
45   PlatformThreadId valid_thread_id_;
46
47   DISALLOW_COPY_AND_ASSIGN(MessageLoopProxyImpl);
48 };
49
50 }  // namespace internal
51 }  // namespace base
52
53 #endif  // BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_