source: source/ariba/utility/system/SystemEvent.h@ 5860

// [License]

// The Ariba-Underlay Copyright

//

// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)

//

// Institute of Telematics

// UniversitÀt Karlsruhe (TH)

// Zirkel 2, 76128 Karlsruhe

// Germany

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

// 1. Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// 2. Redistributions in binary form must reproduce the above copyright

// notice, this list of conditions and the following disclaimer in the

// documentation and/or other materials provided with the distribution.

//

// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND

// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR

// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

// The views and conclusions contained in the software and documentation

// are those of the authors and should not be interpreted as representing

// official policies, either expressed or implied, of the Institute of

// Telematics.

// [License]



#ifndef SYSTEMEVENT_H_

#define SYSTEMEVENT_H_



#include <boost/date_time.hpp>

#include <iostream>

#include "SystemEventType.h"



using boost::posix_time::ptime;



namespace ariba {

namespace utility {



class SystemQueue;

class SystemEventListener;



class SystemEvent {

        friend class SystemQueue;

private:

        SystemEventListener* listener; //< handler of the event

        SystemEventType type; //< type of the event

        const void* data; //< data attached to the event



public: 

        // TODO: these should be private, but the gcc 3.4 in scratchbox for cross-compiling

        // for Maemo (Nokia N810) gets confused when the friend class SystemQueue has a 

        // private class that accesses these variables. Therefore they are public for now.

        ptime scheduledTime; //< time the event was originally given to the queue

        uint32_t delayTime; //< time the event is scheduled at, or 0 if it is to be fired immediately

        uint32_t remainingDelay; //< remaining delay time for sleeping

        

public:

        inline SystemEvent(

                        SystemEventListener* mlistener,

                        SystemEventType mtype = SystemEventType::DEFAULT,

                        void* mdata = NULL)

                        :       scheduledTime(boost::posix_time::not_a_date_time),

                                delayTime(0),

                                remainingDelay(0),

                                listener(mlistener),

                                type(mtype),

                                data(mdata) {

        }



        template<typename T>

        inline SystemEvent( SystemEventListener* mlistener,

                        SystemEventType mtype = SystemEventType::DEFAULT,

                        T* mdata = NULL)

                                :       scheduledTime(boost::posix_time::not_a_date_time),

                                        delayTime(0),

                                        remainingDelay(0),

                                        listener(mlistener),

                                        type(mtype),

                                        data((void*)mdata) {

        }







        inline SystemEvent(const SystemEvent& copy) {

                this->scheduledTime = copy.scheduledTime;

                this->delayTime = copy.delayTime;

                this->remainingDelay = copy.remainingDelay;

                this->listener = copy.listener;

                this->type = copy.type;

                this->data = copy.data;

        }



        inline void operator=(const SystemEvent& right) {

                this->scheduledTime = right.scheduledTime;

                this->delayTime = right.delayTime;

                this->remainingDelay = right.remainingDelay;

                this->listener = right.listener;

                this->type = right.type;

                this->data = right.data;

        }



        inline ~SystemEvent() {

        }



        template<typename T>

        inline operator T() const {

                return (T) (data);

        }



        inline SystemEventListener* getListener() const {

                return listener;

        }



        template<typename T>

        inline T* getData() const {

                return (T*)*this;

        }



        inline const SystemEventType getType() const {

                return type;

        }



        inline const ptime getScheduledTime() const {

                return scheduledTime;

        }



        inline const uint32_t getRemainingDelay() const {

                return remainingDelay;

        }



        inline bool operator<(const SystemEvent& right) const {

                return remainingDelay < right.remainingDelay;

        }



};



}} // spovnet, common



#endif /* SYSTEMEVENT_H_ */