public new object Clone()
{
PEQMessageBuildTree msg =
new PEQMessageBuildTree(_DestinationID, _SenderID, _SequenceNumber,
_SinkID, _HopCount);
msg._nextHopCheat = _nextHopCheat;
return msg;
}
/* / \
* // | \\
* / | \
* | */
public void Initialize()
{
Notify(GenerateStaticReport()); // For Visualization
// Set initial hello timer to random value
PEQTimerHello timer =
new PEQTimerHello(_randomValue.NextDouble() * _TIMER_HELLO, this);
_eventManager.AddEvent(timer);
if (_isSink)
{
// Send build tree (at future time...)
PEQMessageBuildTree msgBT = new PEQMessageBuildTree(new VarID(_NUM_ID_BYTES), _id,
_sequenceNumber++, _id, 0x00);
double time = _randomValue.NextDouble() * _TIMER_BUILDTREE;
msgBT._nextHopCheat = _location;
PEQTimerMessage outputTimer = new PEQTimerMessage(msgBT, time, this);
_eventManager.AddEvent(outputTimer);
// Add to BT to subscription table (this is early........)
PEQTableEntrySubscription sub = new PEQTableEntrySubscription();
sub._SinkID = _id;
sub._nextHopCheat = _location;
sub._HopCount = 0;
sub._DestinationID = _id;
sub._CriteriaType = 0x0000;
sub._Valid = true;
_tableSubscription.Add(sub);
// Send subscription (at future time...)
PEQMessageSubscribe msgSub = new PEQMessageSubscribe(new VarID(_NUM_ID_BYTES), _id,
_sequenceNumber++, _id, 0x00,
new PEQSubscriptionInfo(0x0001,
new PEQSubscriptionCriteria()));
time = time + _TIMER_SUBSCRIBE;
msgSub._nextHopCheat = _location;
outputTimer = new PEQTimerMessage(msgSub, time, this);
_eventManager.AddEvent(outputTimer);
// Add subscription to subscription table (this is very early........)
sub = new PEQTableEntrySubscription();
sub._SinkID = _id;
sub._nextHopCheat = _location;
sub._HopCount = 0;
sub._DestinationID = _id;
sub._CriteriaType = 0x0001;
sub._Valid = true;
_tableSubscription.Add(sub);
updateRoutingTable();
}
}
private void processBuildTree(PEQMessageBuildTree msg)
{
bool found = false; // if the Sink was found in the table
bool update = false; // if the Sink was added / modified
// Look for Sink ID in Subscription Table to update
foreach (PEQTableEntrySubscription entry in _tableSubscription)
{
if ((entry._SinkID == msg._SinkID) &&
(entry._CriteriaType == 0x0000))
{
found = true;
if (msg._HopCount + 1 < entry._HopCount)
{
update = true;
entry._HopCount = (byte)(msg._HopCount + 1);
entry._DestinationID = msg._SenderID;
entry._nextHopCheat = msg._nextHopCheat;
}
}
}
if (!found)
{
update = true;
PEQTableEntrySubscription entry = new PEQTableEntrySubscription();
entry._CriteriaType = 0x0000;
entry._DestinationID = msg._SenderID;
entry._HopCount = (byte)(msg._HopCount + 1);
entry._SinkID = msg._SinkID;
entry._nextHopCheat = msg._nextHopCheat;
_tableSubscription.Add(entry);
}
if (update)
{
updateRoutingTable();
sendBuildTree(msg);
}
}
private void sendBuildTree(PEQMessageBuildTree msg)
{
// Propagate BuildTree message
PEQMessageBuildTree newMsg = (PEQMessageBuildTree)msg.Clone();
newMsg._SenderID = _id;
newMsg._SequenceNumber = 0x00;
newMsg._HopCount = (byte)(msg._HopCount + 1);
newMsg._nextHopCheat = _location;
PEQTimerMessage timerEvent = new PEQTimerMessage(newMsg,
_eventManager.CurrentClock + _TIMER_WAIT_SEND, this);
_eventManager.AddEvent(timerEvent);
}