ConnInputEndPoint.hpp

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/***************************************************************************
  tag: Peter Soetens  Thu Oct 22 11:59:08 CEST 2009  ConnInputEndPoint.hpp

                        ConnInputEndPoint.hpp -  description
                           -------------------
    begin                : Thu October 22 2009
    copyright            : (C) 2009 Sylvain Joyeux
    email                : sylvain.joyeux@m4x.org

 ***************************************************************************
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#ifndef ORO_CONN_INPUT_ENDPOINT_HPP
#define ORO_CONN_INPUT_ENDPOINT_HPP

#include "Channels.hpp"

namespace RTT
{ namespace internal {

    template<typename T>
    class ConnInputEndpoint : public base::ChannelElement<T>
    {
        OutputPort<T>* port;
        ConnID* cid;

    public:
        ConnInputEndpoint(OutputPort<T>* port, ConnID* id)
            : port(port), cid(id) { }

        ~ConnInputEndpoint()
        {
            //this->disconnect(false); // inform port (if any) we're gone.
            delete cid;
        }

        using base::ChannelElement<T>::read;

        virtual FlowStatus read(typename base::ChannelElement<T>::reference_t sample)
        { return NoData; }

        virtual bool inputReady() {
            return true;
        }

        virtual void disconnect(bool forward)
        {
            // Call the base class first
            base::ChannelElement<T>::disconnect(forward);

            OutputPort<T>* port = this->port;
            if (port && !forward)
            {
                this->port   = 0;
                port->removeConnection( cid );
            }
        }

        virtual base::PortInterface* getPort() const {
            return this->port;
        }

        virtual ConnID* getConnID() const { 
            return this->cid; 
        }

        std::string getElementName() const {
            return std::string("ConnInputEndpoint");
        }

    };

}}

#endif