link_channel.h

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/*
 * Copyright (c) 2007 Regents of the SIGNET lab, University of Padova.
 * 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. Neither the name of the University of Padova (SIGNET lab) nor the 
 *    names of its contributors may be used to endorse or promote products 
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
 */


#ifndef LINK_CHANNEL_H
#define LINK_CHANNEL_H


#include<channel-module.h>


#define LINKCH_DROP_REASON_ERROR "ERR"
#define LINKCH_DROP_REASON_WRONG_DIRECTION "WDIR"

class ChSap;
class DropInterface;

class LinkChannelModule : public ChannelModule {
  friend class DropInterface;
public:
  LinkChannelModule();
  virtual ~LinkChannelModule();

  virtual int command(int argc, const char*const* argv);


  virtual void recv(Packet* p, ChSAP* cs);


   virtual void recv(Packet* p, Handler* h);



  //  virtual void recv(Packet* p, SAP* s) { recv(p,(ChSAP*) s);}

protected:
  NsObject* linkhead_; 
  ChSAP* srcsap;
  ChSAP* dstsap;

};

#endif /*DELAY_BANDWIDTH_CHANNEL_H*/

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