|
INET Framework for OMNeT++/OMNEST
|
#include <OSPFNeighborStateExchange.h>
Public Member Functions | |
| virtual void | ProcessEvent (Neighbor *neighbor, Neighbor::NeighborEventType event) |
| virtual Neighbor::NeighborStateType | GetState (void) const |
| virtual Neighbor::NeighborStateType OSPF::NeighborStateExchange::GetState | ( | void | ) | const [inline, virtual] |
Implements OSPF::NeighborState.
{ return Neighbor::ExchangeState; }
| void OSPF::NeighborStateExchange::ProcessEvent | ( | OSPF::Neighbor * | neighbor, |
| Neighbor::NeighborEventType | event | ||
| ) | [virtual] |
Implements OSPF::NeighborState.
{
if ((event == OSPF::Neighbor::KillNeighbor) || (event == OSPF::Neighbor::LinkDown)) {
MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
neighbor->Reset();
messageHandler->ClearTimer(neighbor->GetInactivityTimer());
ChangeState(neighbor, new OSPF::NeighborStateDown, this);
}
if (event == OSPF::Neighbor::InactivityTimer) {
neighbor->Reset();
if (neighbor->GetInterface()->GetType() == OSPF::Interface::NBMA) {
MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
messageHandler->StartTimer(neighbor->GetPollTimer(), neighbor->GetInterface()->GetPollInterval());
}
ChangeState(neighbor, new OSPF::NeighborStateDown, this);
}
if (event == OSPF::Neighbor::OneWayReceived) {
neighbor->Reset();
ChangeState(neighbor, new OSPF::NeighborStateInit, this);
}
if (event == OSPF::Neighbor::HelloReceived) {
MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
messageHandler->ClearTimer(neighbor->GetInactivityTimer());
messageHandler->StartTimer(neighbor->GetInactivityTimer(), neighbor->GetRouterDeadInterval());
}
if (event == OSPF::Neighbor::IsAdjacencyOK) {
if (!neighbor->NeedAdjacency()) {
neighbor->Reset();
ChangeState(neighbor, new OSPF::NeighborStateTwoWay, this);
}
}
if ((event == OSPF::Neighbor::SequenceNumberMismatch) || (event == OSPF::Neighbor::BadLinkStateRequest)) {
MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
neighbor->Reset();
neighbor->IncrementDDSequenceNumber();
neighbor->SendDatabaseDescriptionPacket(true);
messageHandler->StartTimer(neighbor->GetDDRetransmissionTimer(), neighbor->GetInterface()->GetRetransmissionInterval());
ChangeState(neighbor, new OSPF::NeighborStateExchangeStart, this);
}
if (event == OSPF::Neighbor::ExchangeDone) {
if (neighbor->IsLinkStateRequestListEmpty()) {
MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
messageHandler->StartTimer(neighbor->GetDDRetransmissionTimer(), neighbor->GetRouterDeadInterval());
neighbor->ClearRequestRetransmissionTimer();
ChangeState(neighbor, new OSPF::NeighborStateFull, this);
} else {
MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
messageHandler->StartTimer(neighbor->GetDDRetransmissionTimer(), neighbor->GetRouterDeadInterval());
ChangeState(neighbor, new OSPF::NeighborStateLoading, this);
}
}
if (event == OSPF::Neighbor::UpdateRetransmissionTimer) {
neighbor->RetransmitUpdatePacket();
neighbor->StartUpdateRetransmissionTimer();
}
if (event == OSPF::Neighbor::RequestRetransmissionTimer) {
neighbor->SendLinkStateRequestPacket();
neighbor->StartRequestRetransmissionTimer();
}
}