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RunnableAdapter.h

//
// RunnableAdapter.h
//
// $Id: //poco/1.3/Foundation/include/Poco/RunnableAdapter.h#3 $
//
// Library: Foundation
// Package: Threading
// Module:  Thread
//
// Definition of the RunnableAdapter template class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#ifndef Foundation_RunnableAdapter_INCLUDED
#define Foundation_RunnableAdapter_INCLUDED


#include "Poco/Foundation.h"
#include "Poco/Runnable.h"


namespace Poco {


template <class C>
00051 class RunnableAdapter: public Runnable
      /// This adapter simplifies using ordinary methods as
      /// targets for threads.
      /// Usage:
      ///    RunnableAdapter<MyClass> ra(myObject, &MyObject::doSomething));
      ///    Thread thr;
      ///    thr.Start(ra);
      ///
      /// For using a freestanding or static member function as a thread
      /// target, please see the ThreadTarget class.
{
public:
      typedef void (C::*Callback)();
      
      RunnableAdapter(C& object, Callback method): _pObject(&object), _method(method)
      {
      }
      
      RunnableAdapter(const RunnableAdapter& ra): _pObject(ra._pObject), _method(ra._method)
      {
      }

      ~RunnableAdapter()
      {
      }

      RunnableAdapter& operator = (const RunnableAdapter& ra)
      {
            _pObject = ra._pObject;
            _method  = ra._method;
            return *this;
      }

      void run()
      {
            (_pObject->*_method)();
      }
      
private:
      RunnableAdapter();

      C*       _pObject;
      Callback _method;
};


} // namespace Poco


#endif // Foundation_RunnableAdapter_INCLUDED

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