loss-monitor-plm.cc
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:3k
- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (c) 1994-1997 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 Computer Systems
- * Engineering Group at Lawrence Berkeley Laboratory.
- * 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.
- */
- #ifndef lint
- static const char rcsid[] =
- "@(#) $Header: /cvsroot/nsnam/ns-2/plm/loss-monitor-plm.cc,v 1.2 2000/09/01 03:04:11 haoboy Exp $ (LBL)";
- #endif
- #include <tclcl.h>
- #include "loss-monitor.h"
- class PLMLossMonitor : public LossMonitor {
- public:
- PLMLossMonitor();
- virtual void recv(Packet* pkt, Handler*);
- protected:
- // PLM only
- int flag_PP_;
- double packet_time_PP_;
- int fid_PP_;
- };
- static class PLMLossMonitorClass : public TclClass {
- public:
- PLMLossMonitorClass() : TclClass("Agent/LossMonitor/PLM") {}
- TclObject* create(int, const char*const*) {
- return (new PLMLossMonitor());
- }
- } class_loss_mon_plm;
- PLMLossMonitor::PLMLossMonitor() : LossMonitor()
- {
- flag_PP_ = 0;
- bind("flag_PP_", &flag_PP_);
- bind("packet_time_PP_", &packet_time_PP_);
- bind("fid_PP_", &fid_PP_);
- bind("seqno_", &seqno_);
- }
- void PLMLossMonitor::recv(Packet* pkt, Handler*)
- {
- packet_time_PP_ = Scheduler::instance().clock();
- hdr_ip* iph = HDR_IP(pkt);
- fid_PP_ = iph->flowid();
- hdr_rtp* p = HDR_RTP(pkt);
- seqno_ = p->seqno();
- bytes_ += HDR_CMN(pkt)->size();
- flag_PP_ = p->flags();
- ++npkts_;
- /*
- * Check for lost packets
- */
- if (expected_ >= 0) {
- int loss = seqno_ - expected_;
- if (loss > 0) {
- nlost_ += loss;
- Tcl::instance().evalf("%s log-loss", name());
- }
- }
- Tcl::instance().evalf("%s log-PP", name());
- last_packet_time_ = Scheduler::instance().clock();
- expected_ = seqno_ + 1;
- Packet::free(pkt);
- }