private void updateRoutingTable()
{
List<VarID> sinkList = new List<VarID>(); // ONE route to each sink...
_tableRouting.Clear(); // Start fresh. This list is a factor of valid data elsewhere.
// Get all valid sink IDs
foreach (PEQTableEntrySubscription subEntry in _tableSubscription)
{
if (!sinkList.Contains(subEntry._SinkID))
sinkList.Add(subEntry._SinkID);
}
// Find the best route to each sink.
foreach (VarID sinkID in sinkList)
{
Byte best_hop = 0xFF; // Ensure that the best subEntry is added to the route.
double best_time = 0; // Ensure that the most recent entry is used
PEQTableEntrySubscription best_hopEntry = null;
foreach (PEQTableEntrySubscription subEntry in _tableSubscription)
{
if (subEntry._HopCount <= best_hop)
{
if (subEntry._Timestamp >= best_time)
{
best_hop = subEntry._HopCount;
best_time = subEntry._Timestamp;
best_hopEntry = subEntry;
}
}
}
if (best_hopEntry != null)
{
PEQTableEntryRouting newRoute = new PEQTableEntryRouting(_NUM_ID_BYTES);
newRoute._DestinationID = best_hopEntry._DestinationID;
newRoute._SinkID = best_hopEntry._SinkID;
newRoute._nextHopCheat = best_hopEntry._nextHopCheat;
newRoute._Valid = best_hopEntry._Valid;
_tableRouting.Add(newRoute);
IGraphicalReport newRouteReport;
if (best_hopEntry._CriteriaType == 0x0000)
newRouteReport = GenerateDirectionReport(GetMessageLevel(new PEQMessageBuildTree()));
else
newRouteReport = GenerateDirectionReport(GetMessageLevel(new PEQMessageSubscribe()));
if (newRouteReport != null)
{
if (currentRouteReport != null)
{
newRouteReport.ReportAction = MNS_Reporting.Action.Modify;
newRouteReport.PreviousStatic = currentRouteReport;
currentRouteReport = newRouteReport;
Notify(newRouteReport);
}
else
{
currentRouteReport = GenerateDirectionReport();
if (currentRouteReport != null)
Notify(currentRouteReport);
}
}
else if (currentRouteReport != null)
{
LineReport dirReport = new LineReport(_eventManager.CurrentClock,
(XYDoubleLocation)_location,
(XYDoubleLocation)newRoute._nextHopCheat, 0, -250, true, -_id.GetID());
dirReport.PreviousStatic = currentRouteReport;
dirReport.ReportAction = MNS_Reporting.Action.Stop;
Notify(dirReport);
currentRouteReport = null;
}
}
}
}
private void completeSearch(PEQTableEntrySearch winner)
{
PEQTableEntryRouting outRoute = null;
if (winner == null)
return; // should perform completeSearch(sinkID) first!
bool found = false;
// End Search, Update Route
foreach (PEQTableEntryRouting route in _tableRouting)
{
if ((route._SinkID == winner._SinkID) && (!route._Valid))
{
found = true;
route._Valid = true;
route._DestinationID = winner._DestinationID;
route._nextHopCheat = winner._nextHopCheat;
outRoute = route;
}
}
// Add route
if (!found)
{
PEQTableEntryRouting route = new PEQTableEntryRouting(_NUM_ID_BYTES);
route._DestinationID = winner._DestinationID;
route._SinkID = winner._SinkID;
route._nextHopCheat = winner._nextHopCheat;
_tableRouting.Add(route);
outRoute = route;
}
updateRoutingTable();
if (winner._DataMessage is PEQMessageNotify)
sendNotify(outRoute, (PEQMessageNotify)winner._DataMessage);
}
private void sendNotify(PEQTableEntryRouting Route, PEQMessageNotify msg)
{
PEQMessageNotify newMsg = (PEQMessageNotify)msg.Clone();
newMsg._SenderID = _id;
newMsg._SequenceNumber = _sequenceNumber++;
newMsg._DestinationID = Route._DestinationID;
newMsg._nextHopCheat = _location;
newMsg._Data._NumHops++;
newMsg._Data._TotalDistance += _location.Distance(msg._nextHopCheat);
PEQTimerMessage timerEvent = new PEQTimerMessage(newMsg,
_eventManager.CurrentClock + _TIMER_WAIT_SEND, this);
_eventManager.AddEvent(timerEvent);
}
