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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