loss-monitor-plm.cc

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#ifndef lint
static const char rcsid[] =
    "@(#) $Header: /nfs/jade/vint/CVSROOT/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);
}

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