edd685f15d
Review URL: http://codereview.chromium.org/7583053 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96819 0039d316-1c4b-4281-b951-d872f2087c98
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_MESSAGE_LOOP_PROXY_IMPL_H_
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#define BASE_MESSAGE_LOOP_PROXY_IMPL_H_
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#pragma once
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#include "base/base_export.h"
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#include "base/message_loop.h"
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#include "base/message_loop_proxy.h"
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#include "base/synchronization/lock.h"
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namespace base {
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// A stock implementation of MessageLoopProxy that is created and managed by a
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// MessageLoop. For now a MessageLoopProxyImpl can only be created as part of a
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// MessageLoop.
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class BASE_EXPORT MessageLoopProxyImpl
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: public MessageLoopProxy {
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public:
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virtual ~MessageLoopProxyImpl();
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// MessageLoopProxy implementation
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virtual bool PostTask(const tracked_objects::Location& from_here,
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Task* task);
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virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
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Task* task,
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int64 delay_ms);
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virtual bool PostNonNestableTask(const tracked_objects::Location& from_here,
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Task* task);
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virtual bool PostNonNestableDelayedTask(
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const tracked_objects::Location& from_here,
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Task* task,
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int64 delay_ms);
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virtual bool PostTask(const tracked_objects::Location& from_here,
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const base::Closure& task);
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virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
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const base::Closure& task,
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int64 delay_ms);
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virtual bool PostNonNestableTask(const tracked_objects::Location& from_here,
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const base::Closure& task);
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virtual bool PostNonNestableDelayedTask(
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const tracked_objects::Location& from_here,
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const base::Closure& task,
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int64 delay_ms);
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virtual bool BelongsToCurrentThread();
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protected:
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// Override OnDestruct so that we can delete the object on the target message
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// loop if it still exists.
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virtual void OnDestruct() const;
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private:
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MessageLoopProxyImpl();
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// Called directly by MessageLoop::~MessageLoop.
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virtual void WillDestroyCurrentMessageLoop();
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// TODO(ajwong): Remove this after we've fully migrated to base::Closure.
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bool PostTaskHelper(const tracked_objects::Location& from_here,
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Task* task,
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int64 delay_ms,
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bool nestable);
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bool PostTaskHelper(const tracked_objects::Location& from_here,
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const base::Closure& task,
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int64 delay_ms,
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bool nestable);
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// Allow the messageLoop to create a MessageLoopProxyImpl.
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friend class ::MessageLoop;
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// The lock that protects access to target_message_loop_.
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mutable base::Lock message_loop_lock_;
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MessageLoop* target_message_loop_;
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DISALLOW_COPY_AND_ASSIGN(MessageLoopProxyImpl);
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};
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} // namespace base
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#endif // BASE_MESSAGE_LOOP_PROXY_IMPL_H_
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