LayerIp.cpp

#include "Headers.h"
#include "LayerIp.h"

CLayerIp::CLayerIp(CSimHandler* sim) : CLayer(sim)
{
    this->delegateRecv = new Delegate2<CLayerIp, void, __uint32, CPacket*>(this, &CLayerIp::Recv);
    this->eventRecv = new Event2<void, __uint32, CPacketIp*>();
    this->delegateSend = new Delegate2<CLayerIp, void, __uint32, CPacketIp*>(this, &CLayerIp::Send);
    this->eventSend = new Event2<void, __uint32, CPacket*>();
}

CLayerIp::~CLayerIp()
{
    delete this->delegateRecv;
    delete this->eventRecv;

    delete this->delegateSend;
    delete this->eventSend;
}

void CLayerIp::Recv(__uint32 entry, CPacket* packet)
{
    // Verify the packet is IP
    if(NULL == packet) return;
    if(packet->Type() != PACKET_TYPE_IP) return;

    // Get the IP packet
    CPacketIp* ip = type_cast<CPacketIp*>(packet);

    // Decrement the TTL
    ip->DecTtl();

#ifdef LOG_LAYER
    printf("\n\tT = %7.3lf IP RECV entry=%u bytes=%u", this->sim->Time(), entry, packet->Size());
#endif

    // Send the packet to the upper layers
    (*this->eventRecv)(entry, ip);
}

void CLayerIp::Send(__uint32 entry, CPacketIp* packet)
{
    if(NULL == packet) return;

#ifdef LOG_LAYER
    printf("\n\tT = %7.3lf IP SEND entry=%u bytes=%u", this->sim->Time(), entry, packet->Size());
#endif

    // Send the packer to the lower layer
    (*this->eventSend)(entry, packet);
}