/**
 * @file
 * $Id$
 * $Revision$
 * $Author$
 * $Date$
 *
 * This file is part of The iWear Framework.
 * In particular this file is part of the Framework Context Library
 *
 * The iWear Framework is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by the
 * Free Software Foundation as in version 2 of the License.

 * 
 * The iWear Framework is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * The iWear Framework; if not, write to the Free Software Foundation, Inc., 59
 * Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __CONTEXTCHANGEDTHREAD_H
#define __CONTEXTCHANGEDTHREAD_H

#ifndef __THREAD_H
#include <iwear/thread.h>
#endif

namespace iwear{
namespace context{

class ContextManager;

/**
 * Handles all the changed AtomicContexts by updating the context-tree in the
 * contextmanager.
 */
class ContextChangedThread : public Thread{
private:
    /**
     * The related ContextManager that holds the data we are working on.
     */
    ContextManager* context_manager;

    /**
     * Flag if the thread should be or is stopped.
     */
    bool stopped;
protected:
    virtual void Run(void);
public:
    /**
     * Standard constructor to be used.
     *
     * @param context_manager the ContextManager of the system.
     */
    ContextChangedThread(ContextManager* context_manager, EventDispatcher& ed);

    /**
     * Check if the thread is in state "stopped".
     * 
     * @return if the thread is stopped.
     */
    bool is_stopped(void){
	return stopped;
    }

    /**
     * Stop the thread - after the actual run-cycle is done the thread will
     * exit its Run-function.
     */
    void stop(void){
	stopped = true;
    }

}; // class ContextChangedThread
} // namespace context
} // namespace iwear
#endif // __CONTEXTCHANGEDTHREAD_H