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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 MASH Research
* Group at the University of California Berkeley.
* 4. Neither the name of the University nor of the Research Group 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.
*
* @(#) $Header: /cvsroot/nsnam/ns-2/common/bi-connector.h,v 1.1 1998/12/08 19:09:02 haldar Exp $
*/
#ifndef ns_new_connector_h
#define ns_new_connector_h
#include "object.h"
/*
* An NsObject with two targets - up and down.
*/
class BiConnector : public NsObject {
public:
BiConnector();
inline NsObject* uptarget() { return uptarget_; }
NsObject* downtarget() { return downtarget_; }
virtual void drop(Packet* p);
protected:
virtual void drop(Packet* p, const char *s);
int command(int argc, const char*const* argv);
void recv(Packet*, Handler* callback = 0);
virtual void sendDown(Packet* p, Handler* h)
{ downtarget_->recv(p, h); }
inline virtual void sendUp(Packet* p, Handler* h)
{ uptarget_->recv(p, h); }
NsObject* uptarget_; // upstream target -->previously
// defined as target_ for connector objects then supporting
// unidrectional connectivity only.
NsObject* downtarget_; // downstream target
NsObject* drop_; // drop target for this connector
};
#endif //ns_new_connector
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