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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
#define BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
#include "base/base_export.h"
#include "base/memory/ref_counted.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/pending_task.h"
#include "base/threading/platform_thread.h"
namespace base {
namespace internal {
class IncomingTaskQueue;
// A stock implementation of MessageLoopProxy that is created and managed by a
// MessageLoop. For now a MessageLoopProxyImpl can only be created as part of a
// MessageLoop.
class BASE_EXPORT MessageLoopProxyImpl : public MessageLoopProxy {
public:
explicit MessageLoopProxyImpl(
scoped_refptr<IncomingTaskQueue> incoming_queue);
// MessageLoopProxy implementation
virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
const base::Closure& task,
base::TimeDelta delay) OVERRIDE;
virtual bool PostNonNestableDelayedTask(
const tracked_objects::Location& from_here,
const base::Closure& task,
base::TimeDelta delay) OVERRIDE;
virtual bool RunsTasksOnCurrentThread() const OVERRIDE;
private:
friend class RefCountedThreadSafe<MessageLoopProxyImpl>;
virtual ~MessageLoopProxyImpl();
// THe incoming queue receiving all posted tasks.
scoped_refptr<IncomingTaskQueue> incoming_queue_;
// ID of the thread |this| was created on.
PlatformThreadId valid_thread_id_;
DISALLOW_COPY_AND_ASSIGN(MessageLoopProxyImpl);
};
} // namespace internal
} // namespace base
#endif // BASE_MESSAGE_LOOP_MESSAGE_LOOP_PROXY_IMPL_H_
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