signal.hpp

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/*****************************************************************************
** Ifdefs
*****************************************************************************/

#ifndef ECL_SIGSLOTS_SIGNAL_HPP_
#define ECL_SIGSLOTS_SIGNAL_HPP_

/*****************************************************************************
** Includes
*****************************************************************************/

#include "sigslot.hpp"
#include <ecl/utilities/void.hpp>
#include <ecl/config/macros.hpp>

/*****************************************************************************
** Namespaces
*****************************************************************************/

namespace ecl {

/*****************************************************************************
** Interface [General]
*****************************************************************************/
template <typename Data=Void>
class ECL_PUBLIC Signal {
public:
        Signal() : sigslot(NULL) {
                sigslot = new SigSlot<Data>();
        }
        Signal(const std::string &topic) : sigslot(NULL) {
                sigslot = new SigSlot<Data>();
                connect(topic);
        }

        Signal(const Signal& signal) {
                *this = signal;
                sigslot->incrHandles();
        }

        ~Signal() {
                sigslot->decrHandles();
                if ( sigslot->handles() == 0 ) {
                        delete sigslot;
                }
        }

        void connect(const std::string& topic) { sigslot->connectSignal(topic); }
        void connectAsSlot(const std::string& topic) { sigslot->connectSlot(topic); }
        void disconnect() { sigslot->disconnect(); }

        void emit(Data data) { sigslot->emit(data); }

private:
        SigSlot<Data>* sigslot;
};

/*****************************************************************************
** Interface [Void]
*****************************************************************************/
template<>
class ECL_PUBLIC Signal<Void> {
public:
        Signal() : sigslot(NULL) {
                sigslot = new SigSlot<Void>();
        }
        Signal(const std::string &topic) : sigslot(NULL) {
                sigslot = new SigSlot<Void>();
                connect(topic);
        }
        Signal(const Signal& signal) {
                *this = signal;
                sigslot->incrHandles();
        }
        ~Signal() {
                sigslot->decrHandles();
                if ( sigslot->handles() == 0 ) {
                        delete sigslot;
                }
        }
        void connect(const std::string& topic) { sigslot->connectSignal(topic); }
        void connectAsSlot(const std::string& topic) { sigslot->connectSlot(topic); }
        void disconnect() { sigslot->disconnect(); }

        void emit() { sigslot->emit(); }

private:
        SigSlot<Void>* sigslot;

};

} // namespace ecl

#endif /* ECL_SIGSLOTS_SIGNAL_HPP_ */