LayerIpRoute.cpp

#include "Headers.h"
#include "LayerIpRoute.h"

CLayerIpRoute::CLayerIpRoute(
    CSimHandler*    sim,
    CAddress        address,
    CRoute*         route
    ) : CLayer(sim)
{
    this->address = address;
    this->route = route;

    // Delegate and event
    this->delegateRecv = new Delegate2<CLayerIpRoute, void, __uint32, CPacketIp*>(this, &CLayerIpRoute::Recv);
    this->eventSend = new Event2<void, __uint32, CPacketIp*>();
}

CLayerIpRoute::~CLayerIpRoute()
{
    delete this->delegateRecv;
    delete this->eventSend;
}

void CLayerIpRoute::Recv(__uint32 entry, CPacketIp* packet)
{
    // Forward all unicast packets that are not address to local address and have a TTL greater than zero
    if(packet->Ttl() == 0) return;
    if(packet->Dst().IsMulticast()) return;
    if(packet->Dst() == this->address) return;

#ifdef LOG_LAYER
    printf("\n\tT = %7.3lf IP_ROUTE RECV local=%u bytes=%u src=%u dst=%u", this->sim->Time(), this->address, packet->Size(), packet->Src(), packet->Dst());
#endif

    __uint32 link = this->route->Forward(this->address, packet->Dst());

    (*this->eventSend)(link, type_cast<CPacketIp*>(packet->Copy()));
}