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// Copyright (c) 2011 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.
// This file contains the implementation shared by
// MessageLoopProxy::PostTaskAndReply and WorkerPool::PostTaskAndReply.
#ifndef BASE_THREADING_POST_TASK_AND_REPLY_IMPL_H_
#define BASE_THREADING_POST_TASK_AND_REPLY_IMPL_H_
#include "base/callback_forward.h"
#include "base/location.h"
namespace base {
namespace internal {
// Inherit from this in a class that implements PostTask appropriately
// for sending to a destination thread.
//
// Note that 'reply' will always get posted back to your current
// MessageLoop.
//
// If you're looking for a concrete implementation of
// PostTaskAndReply, you probably want base::MessageLoopProxy, or you
// may want base::WorkerPool.
class PostTaskAndReplyImpl {
public:
// Implementation for MessageLoopProxy::PostTaskAndReply and
// WorkerPool::PostTaskAndReply.
bool PostTaskAndReply(const tracked_objects::Location& from_here,
const Closure& task,
const Closure& reply);
private:
virtual bool PostTask(const tracked_objects::Location& from_here,
const Closure& task) = 0;
};
} // namespace internal
} // namespace base
#endif // BASE_THREADING_POST_TASK_AND_REPLY_IMPL_H_
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