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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.
#ifndef REMOTING_BASE_TASK_THREAD_PROXY_H_
#define REMOTING_BASE_TASK_THREAD_PROXY_H_
#include "base/message_loop.h"
namespace remoting {
// This is a refcounted class that is used to switch to the appropriate thread
// before running a task on a target object. It should be used whenever you
// need to post to an object, but:
// (1) You don't know when the object might be deleted, and
// (2) You cannot subclass the target from RefCountedThreadSafe.
//
// Example usage:
// Instead of:
// MyClass* obj;
// obj->Method(param);
// Use:
// proxy->Call(base::Bind(&MyClass::Method,
// base::Unretained(obj),
// param);
class TaskThreadProxy : public base::RefCountedThreadSafe<TaskThreadProxy> {
public:
TaskThreadProxy(MessageLoop* loop);
// Detach should be called when the target of the posted task is being
// destroyed.
void Detach();
void Call(const base::Closure& closure);
private:
friend class base::RefCountedThreadSafe<TaskThreadProxy>;
virtual ~TaskThreadProxy();
void CallClosure(const base::Closure& closure);
MessageLoop* message_loop_;
DISALLOW_COPY_AND_ASSIGN(TaskThreadProxy);
};
} // namespace remoting
#endif // REMOTING_BASE_TASK_THREAD_PROXY_H_
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