EventBase.hpp

/***************************************************************************
  tag: FMTC  do nov 2 13:05:56 CET 2006  EventBase.hpp

                        EventBase.hpp -  description
                           -------------------
    begin                : do november 02 2006
    copyright            : (C) 2006 FMTC
    email                : peter.soetens@fmtc.be

 ***************************************************************************
 *   This library 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;                 *
 *   version 2 of the License.                                             *
 *                                                                         *
 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
 *   file, or you compile this file and link it with other files to        *
 *   produce an executable, this file does not by itself cause the         *
 *   resulting executable to be covered by the GNU General Public          *
 *   License.  This exception does not however invalidate any other        *
 *   reasons why the executable file might be covered by the GNU General   *
 *   Public License.                                                       *
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 *   This library is distributed in the hope that it will be useful,       *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
 *   Lesser General Public License for more details.                       *
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 *   You should have received a copy of the GNU General Public             *
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 *   Foundation, Inc., 59 Temple Place,                                    *
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 *                                                                         *
 ***************************************************************************/



#ifndef ORO_CORELIB_EVENT_BASE_HPP
#define ORO_CORELIB_EVENT_BASE_HPP

#include "Invoker.hpp"
#include "Subscriber.hpp"
#include "ActionInterface.hpp"

namespace RTT
{
    namespace detail
    {
        template<
            typename Signature // function type R (T1, T2, ..., TN)
        >
        class EventBase
            : public detail::InvokerBase<Signature>,
              public detail::SubscriberBase<Signature>,
              public ActionInterface
        {
        public:
            typedef typename detail::SubscriberBase<Signature>::SlotFunction SlotFunction;

            void readArguments() {}
            bool execute() {return false;}

            virtual int arity() const = 0;

            virtual EventBase<Signature>* cloneI() const = 0;
        };
    }
}

#endif