callback_decls.h

/*
 *  Copyright (C) 2006  Helmut Grohne
 *
 *  This program 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; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef LIBMUTH_CALLBACK_DECLS_H
#define LIBMUTH_CALLBACK_DECLS_H

#include <list>
#include "microthread.h"
#include "channel_decls.h"
#include "suspender_decls.h"

class Callback {
        public:
                virtual ~Callback();
                virtual void run()=0;
                virtual bool iscompleted();
};

class ScheduleCallback : public Callback {
        private:
                const WeakReference<Microthread> microthread;
        public:
                ScheduleCallback(Microthread &m);
                void run();
};


template<class T> class ChannelCallback : public Callback {
        private:
                Channel<T> &channel;
                T value;
        public:
                ChannelCallback(Channel<T> &c, const T &v);
                void run();
};

template<class T> class SuspendCallback : public Callback {
        private:
                Reference<Suspender<T> > suspender;
                T value;
        public:
                SuspendCallback(Suspender<T> &s, const T &v);
                void run();
                bool iscompleted();
};

class CallbackChain : public Callback {
        private:
                std::list<Callback*> callbacks;
        public:
                CallbackChain();
                CallbackChain(Callback *cb);
                void add(Callback *cb);
                void run();
                ~CallbackChain();
};

template<class T> class ExceptionCallback : public Callback {
        private:
                T exception;
        public:
                ExceptionCallback(T ex);
                void run();
};

#endif

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