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00001 //
00002 // Copyright (C) 2006 Andras Babos and Andras Varga
00003 //
00004 // This program is free software; you can redistribute it and/or
00005 // modify it under the terms of the GNU Lesser General Public License
00006 // as published by the Free Software Foundation; either version 2
00007 // of the License, or (at your option) any later version.
00008 //
00009 // This program is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 // GNU Lesser General Public License for more details.
00013 //
00014 // You should have received a copy of the GNU Lesser General Public License
00015 // along with this program; if not, see <http://www.gnu.org/licenses/>.
00016 //
00017 
00018 #include "OSPFNeighborStateAttempt.h"
00019 #include "OSPFNeighborStateDown.h"
00020 #include "OSPFNeighborStateInit.h"
00021 #include "MessageHandler.h"
00022 #include "OSPFInterface.h"
00023 #include "OSPFArea.h"
00024 #include "OSPFRouter.h"
00025 
00026 void OSPF::NeighborStateAttempt::ProcessEvent(OSPF::Neighbor* neighbor, OSPF::Neighbor::NeighborEventType event)
00027 {
00028     if ((event == OSPF::Neighbor::KillNeighbor) || (event == OSPF::Neighbor::LinkDown)) {
00029         MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
00030         neighbor->Reset();
00031         messageHandler->ClearTimer(neighbor->GetInactivityTimer());
00032         ChangeState(neighbor, new OSPF::NeighborStateDown, this);
00033     }
00034     if (event == OSPF::Neighbor::InactivityTimer) {
00035         neighbor->Reset();
00036         if (neighbor->GetInterface()->GetType() == OSPF::Interface::NBMA) {
00037             MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
00038             messageHandler->StartTimer(neighbor->GetPollTimer(), neighbor->GetInterface()->GetPollInterval());
00039         }
00040         ChangeState(neighbor, new OSPF::NeighborStateDown, this);
00041     }
00042     if (event == OSPF::Neighbor::HelloReceived) {
00043         MessageHandler* messageHandler = neighbor->GetInterface()->GetArea()->GetRouter()->GetMessageHandler();
00044         messageHandler->ClearTimer(neighbor->GetInactivityTimer());
00045         messageHandler->StartTimer(neighbor->GetInactivityTimer(), neighbor->GetRouterDeadInterval());
00046         ChangeState(neighbor, new OSPF::NeighborStateInit, this);
00047     }
00048 }