trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
		
			
				
	
	
		
			80 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			80 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * libjingle
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 * Copyright 2004--2006, Google Inc.
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 *
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 * Redistribution and use in source and binary forms, with or without 
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 * modification, are permitted provided that the following conditions are met:
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 *
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 *  1. Redistributions of source code must retain the above copyright notice, 
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 *     this list of conditions and the following disclaimer.
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 *  2. Redistributions in binary form must reproduce the above copyright notice,
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 *     this list of conditions and the following disclaimer in the documentation
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 *     and/or other materials provided with the distribution.
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 *  3. The name of the author may not be used to endorse or promote products 
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 *     derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef TALK_BASE_TASKPARENT_H__
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#define TALK_BASE_TASKPARENT_H__
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#include <set>
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#include "talk/base/basictypes.h"
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#include "talk/base/scoped_ptr.h"
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namespace talk_base {
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class Task;
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class TaskRunner;
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class TaskParent {
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 public:
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  TaskParent(Task *derived_instance, TaskParent *parent);
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  explicit TaskParent(TaskRunner *derived_instance);
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  virtual ~TaskParent() { }
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  TaskParent *GetParent() { return parent_; }
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  TaskRunner *GetRunner() { return runner_; }
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  bool AllChildrenDone();
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  bool AnyChildError();
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#ifdef _DEBUG
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  bool IsChildTask(Task *task);
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#endif
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 protected:
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  void OnStopped(Task *task);
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  void AbortAllChildren();
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  TaskParent *parent() {
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    return parent_;
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  }
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 private:
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  void Initialize();
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  void OnChildStopped(Task *child);
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  void AddChild(Task *child);
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  TaskParent *parent_;
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  TaskRunner *runner_;
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  bool child_error_;
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  typedef std::set<Task *> ChildSet;
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  scoped_ptr<ChildSet> children_;
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  DISALLOW_EVIL_CONSTRUCTORS(TaskParent);
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};
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} // namespace talk_base
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#endif  // TALK_BASE_TASKPARENT_H__
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