source: code/branches/core7/src/libraries/network/NetworkFunctionIncludes.h @ 10476

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Oliver Scheuss
 *   Co-authors:
 *      Fabian 'x3n' Landau
 *
 */

#ifndef _NetworkFunctionIncludes_H__
#define _NetworkFunctionIncludes_H__

#include "NetworkPrereqs.h"

#include <boost/preprocessor/cat.hpp>
#include <boost/static_assert.hpp>

#include "NetworkFunction.h"
#include "NetworkFunctionManager.h"
#include "core/module/StaticallyInitializedInstance.h"

#define registerStaticNetworkFunction( functionPointer ) \
    static orxonox::NetworkFunctionBase& BOOST_PP_CAT( NETWORK_FUNCTION_, __UNIQUE_NUMBER__ ) \
        = (new orxonox::SI_NF(orxonox::registerStaticNetworkFunctionFct( functionPointer, #functionPointer )))->getFunction()

#define registerMemberNetworkFunction( class, function ) \
    static orxonox::NetworkFunctionBase& BOOST_PP_CAT( NETWORK_FUNCTION_##class, __UNIQUE_NUMBER__ ) \
        = (new orxonox::SI_NF(orxonox::registerMemberNetworkFunctionFct<class>( &class::function, #class "_" #function)))->getFunction()

// call it with functionPointer, clientID, args
#define callStaticNetworkFunction( functionPointer, ...) \
    { \
        NetworkFunctionPointer p1; \
        copyPtr( functionPointer, p1 ); \
        FunctionCallManager::addCall(NetworkFunctionManager::getInstance().getFunctionByFunctionPointer(p1)->getNetworkID(), OBJECTID_UNKNOWN, __VA_ARGS__); \
    }

// call it with class, function, objectID, clientID, args
#define callMemberNetworkFunction( class, function, objectID, ...) \
    { \
        NetworkFunctionPointer p1; \
        copyPtr( &class::function, p1 ); \
        FunctionCallManager::addCall(NetworkFunctionManager::getInstance().getFunctionByFunctionPointer(p1)->getNetworkID(), objectID, __VA_ARGS__); \
    }

namespace orxonox
{
    class _CoreExport StaticallyInitializedNetworkFunction : public StaticallyInitializedInstance
    {
        public:
            StaticallyInitializedNetworkFunction(NetworkFunctionBase* function) : function_(function) {}

            virtual void load()
                { NetworkFunctionManager::getInstance().registerFunction(this->function_); }
            virtual void unload()
                { NetworkFunctionManager::getInstance().unregisterFunction(this->function_); }

            inline NetworkFunctionBase& getFunction()
                { return *this->function_; }

        private:
            NetworkFunctionBase* function_;
    };

    typedef StaticallyInitializedNetworkFunction SI_NF;

    template<class T> inline NetworkFunctionBase* registerStaticNetworkFunctionFct( T ptr, const std::string& name )
    {
        BOOST_STATIC_ASSERT( sizeof(T)<=sizeof(NetworkFunctionPointer) ); // if this fails your compiler uses bigger pointers for static functions than defined above
        NetworkFunctionPointer destptr;
        copyPtr( ptr, destptr );
        return new NetworkFunctionStatic( createFunctor(ptr), name, destptr );
    }

    template<class T, class PT> inline NetworkFunctionBase* registerMemberNetworkFunctionFct( PT ptr, const std::string& name )
    {
        BOOST_STATIC_ASSERT( sizeof(PT)<=sizeof(NetworkFunctionPointer) ); // if this fails your compiler uses bigger pointers for a specific kind of member functions than defined above
        NetworkFunctionPointer destptr;
        copyPtr( ptr, destptr );
        return new NetworkMemberFunction<T>( createFunctor(ptr), name, destptr );
    }
}

#endif /* _NetworkFunctionIncludes_H__ */