//
// Copyright Š 2014 PRISTINE Consortium (http://ict-pristine.eu)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see http://www.gnu.org/licenses/.
//
/*
* @file RXControl.h
* @author Marcel Marek (imarek@fit.vutbr.cz)
* @date May 3, 2014
* @brief
* @detail
*/
#ifndef RXCONTROL_H_
#define RXCONTROL_H_
#include <csimplemodule.h>
/*
*
*/
class RXControl : public cSimpleModule
{
friend class DTP;
private:
// unsigned int rightWinEdge; //The highest sequence number that the remote application is currently willing to accept on this connection.
// unsigned int lastRightWinEdgeSent; //The sequence number of the last Right Window Edge Sent in a Control PDU. (This should be the same as RightWindowEdge.)
//rxQ //retransmissionQueue - The queue of PDUs that have been handed off to the RMT but not yet acknowledged.
/* Moved to DTCPState because it is needed even if RXControl is not present */
// unsigned int nextSenderControlSeqNum; //This state variable will contain the Sequence Number to be assigned to a Control PDU sent on this connection.
// unsigned int lastControlSeqNumRcv; // - This state variable contains the sequence number of the next expected Transfer PDU received on this connection.
// unsigned int sendLeftWinEdge; // This state variable contains the Sequence Number of the lowest sequence number expected to be Acked. This should be the Sequence Number of the first PDU on the RetransmissionQ.
// unsigned int dataReXmitMax; // The maximum number of retransmissions of PDUs without a positive acknowledgement that will be tried before declaring an error.
// unsigned int rcvLeftWinEdge; // This state variable contains the Sequence Number of the lowest sequence number expected to be Acked. This should be the Sequence Number of the first PDU on the RetransmissionQ.
// unsigned int dupAcks;
/* Nota Bene: DTCP PDU Retransmission: Note that there is no retransmission queue
for DTCP Control PDUs, when a lost control PDU is detected a new one is generated
with the current information. */
public:
RXControl();
virtual ~RXControl();
// unsigned int getRightWinEdge();
// unsigned int getNextSndCtrlSeqNum();
// unsigned int getLastCtrlSeqNumRcv();
// void setLastCtrlSeqNumRcv(unsigned int ctrlSeqNum);
// void incDupAcks();
};
#endif /* RXCONTROL_H_ */