#include <AnsaOSPFNeighborState.h>
Public Member Functions | |
| virtual | ~NeighborState () |
| virtual void | ProcessEvent (Neighbor *neighbor, Neighbor::NeighborEventType event)=0 |
| virtual Neighbor::NeighborStateType | GetState (void) const =0 |
Protected Member Functions | |
| void | ChangeState (Neighbor *neighbor, NeighborState *newState, NeighborState *currentState) |
Detailed Description
Definition at line 8 of file AnsaOSPFNeighborState.h.
Constructor & Destructor Documentation
| virtual AnsaOSPF::NeighborState::~NeighborState | ( | ) | [inline, virtual] |
Definition at line 13 of file AnsaOSPFNeighborState.h.
{}
Member Function Documentation
| void AnsaOSPF::NeighborState::ChangeState | ( | AnsaOSPF::Neighbor * | neighbor, |
| AnsaOSPF::NeighborState * | newState, | ||
| AnsaOSPF::NeighborState * | currentState | ||
| ) | [protected] |
Definition at line 7 of file AnsaOSPFNeighborState.cc.
Referenced by AnsaOSPF::NeighborStateAttempt::ProcessEvent(), AnsaOSPF::NeighborStateTwoWay::ProcessEvent(), AnsaOSPF::NeighborStateLoading::ProcessEvent(), AnsaOSPF::NeighborStateInit::ProcessEvent(), AnsaOSPF::NeighborStateFull::ProcessEvent(), AnsaOSPF::NeighborStateExchangeStart::ProcessEvent(), AnsaOSPF::NeighborStateExchange::ProcessEvent(), and AnsaOSPF::NeighborStateDown::ProcessEvent().
{
AnsaOSPF::Neighbor::NeighborStateType oldState = currentState->GetState();
AnsaOSPF::Neighbor::NeighborStateType nextState = newState->GetState();
bool rebuildRoutingTable = false;
neighbor->ChangeState(newState, currentState);
if (((oldState == AnsaOSPF::Neighbor::FullState) || (nextState == AnsaOSPF::Neighbor::FullState)) && !(neighbor->GetInterface()->IsGoingDown())) {
AnsaOSPF::RouterID routerID = neighbor->GetInterface()->GetArea()->GetRouter()->GetRouterID();
AnsaOSPF::RouterLSA* routerLSA = neighbor->GetInterface()->GetArea()->FindRouterLSA(routerID);
if (routerLSA != NULL) {
long sequenceNumber = routerLSA->getHeader().getLsSequenceNumber();
if (sequenceNumber == MAX_SEQUENCE_NUMBER) {
routerLSA->getHeader().setLsAge(MAX_AGE);
neighbor->GetInterface()->GetArea()->FloodLSA(routerLSA);
routerLSA->IncrementInstallTime();
} else {
AnsaOSPF::RouterLSA* newLSA = neighbor->GetInterface()->GetArea()->OriginateRouterLSA();
newLSA->getHeader().setLsSequenceNumber(sequenceNumber + 1);
newLSA->getHeader().setLsChecksum(0); // TODO: calculate correct LS checksum
rebuildRoutingTable |= routerLSA->Update(newLSA);
delete newLSA;
neighbor->GetInterface()->GetArea()->FloodLSA(routerLSA);
}
}
if (neighbor->GetInterface()->GetState() == AnsaOSPF::Interface::DesignatedRouterState) {
AnsaOSPF::NetworkLSA* networkLSA = neighbor->GetInterface()->GetArea()->FindNetworkLSA(ULongFromIPv4Address(neighbor->GetInterface()->GetAddressRange().address));
if (networkLSA != NULL) {
long sequenceNumber = networkLSA->getHeader().getLsSequenceNumber();
if (sequenceNumber == MAX_SEQUENCE_NUMBER) {
networkLSA->getHeader().setLsAge(MAX_AGE);
neighbor->GetInterface()->GetArea()->FloodLSA(networkLSA);
networkLSA->IncrementInstallTime();
} else {
AnsaOSPF::NetworkLSA* newLSA = neighbor->GetInterface()->GetArea()->OriginateNetworkLSA(neighbor->GetInterface());
if (newLSA != NULL) {
newLSA->getHeader().setLsSequenceNumber(sequenceNumber + 1);
newLSA->getHeader().setLsChecksum(0); // TODO: calculate correct LS checksum
rebuildRoutingTable |= networkLSA->Update(newLSA);
delete newLSA;
} else { // no neighbors on the network -> old NetworkLSA must be flushed
networkLSA->getHeader().setLsAge(MAX_AGE);
networkLSA->IncrementInstallTime();
}
neighbor->GetInterface()->GetArea()->FloodLSA(networkLSA);
}
}
}
}
if (rebuildRoutingTable) {
neighbor->GetInterface()->GetArea()->GetRouter()->RebuildRoutingTable();
}
}
| virtual Neighbor::NeighborStateType AnsaOSPF::NeighborState::GetState | ( | void | ) | const [pure virtual] |
Implemented in AnsaOSPF::NeighborStateAttempt, AnsaOSPF::NeighborStateDown, AnsaOSPF::NeighborStateExchange, AnsaOSPF::NeighborStateExchangeStart, AnsaOSPF::NeighborStateFull, AnsaOSPF::NeighborStateInit, AnsaOSPF::NeighborStateLoading, and AnsaOSPF::NeighborStateTwoWay.
Referenced by ChangeState().
| virtual void AnsaOSPF::NeighborState::ProcessEvent | ( | Neighbor * | neighbor, |
| Neighbor::NeighborEventType | event | ||
| ) | [pure virtual] |
The documentation for this class was generated from the following files:
