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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
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 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
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#ifndef _THREADLISTENER_HXX
#define _THREADLISTENER_HXX

#include <ifinishedthreadlistener.hxx>
#include <ithreadlistenerowner.hxx>
#include <observablethread.hxx>

/** helper class to observe threads

    OD 2007-03-30 #i73788#
    An instance of this class can be used to observe a thread in order to
    be notified, if the thread has finished its work. The notification is
    directly forward to its owner - an instance of IThreadListenerOwner
    Note:
    - A thread can only have one or none listener.
    - The notification is performed via the ThreadID

    @author OD
*/
class ThreadListener : public IFinishedThreadListener
{
    public:

        ThreadListener( IThreadListenerOwner& rThreadListenerOwner );
        virtual ~ThreadListener();

        void ListenToThread( const oslInterlockedCount nThreadID,
                             ObservableThread& rThread );

        virtual void NotifyAboutFinishedThread( const oslInterlockedCount nThreadID );

    private:

        IThreadListenerOwner& mrThreadListenerOwner;
};
#endif