fec.h
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- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1997 Regents of the University of California.
- * All rights reserved.
- *
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Daedalus Research
- * Group at the University of California Berkeley.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS 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.
- *
- * Contributed by the Daedalus Research Group, UC Berkeley
- * (http://daedalus.cs.berkeley.edu)
- *
- * @(#) $Header: /cvsroot/nsnam/ns-2/queue/fec.h,v 1.1 2001/03/07 18:30:02 jahn Exp $ (UCB)
- */
- #ifndef ns_fecmodel_h
- #define ns_fecmodel_h
- #include "bi-connector.h"
- #include "ranvar.h"
- #include "packet.h"
- /*
- * Basic object for error models. This can be used unchanged by error
- * models that are characterized by a single parameter, the rate of errors
- * (or equivalently, the mean duration/spacing between errors). Currently,
- * this includes the uniform and exponentially-distributed models.
- */
- class FECModel : public BiConnector {
- public:
- FECModel();
- virtual void recv(Packet*, Handler*);
- protected:
- virtual int command(int argc, const char*const* argv);
- void addfec(Packet *p);
- void subfec(Packet *p);
- int firstTime_; // to not corrupt first packet in byte model
- int FECstrength_; // indicate how many corrupted bits are corrected
- int FECbyte_;
- int debug_;
- };
- #endif