public BACnetPacket waitForPacket(int timeout)
{
long startTime = _apm._stopWatch.ElapsedMilliseconds;
while (_apm._stopWatch.ElapsedMilliseconds < startTime + timeout)
{
if (_apm.pktQueueToApplication.Count > 0)
{
BACnetPacket bpk = _apm.pktQueueToApplication.myDequeue();
bpk.DecodeBACnet();
return(bpk);
}
Sleep(10);
}
// timeout - todo - one day create a timeout type of exception
throw new TimeoutException();
}
// tests that only local devices answer to local broadcasts. (A type of router test).
public override void Execute()
{
bool someFails = false;
WaitForQuietOnIncomingPacketQueue();
ClearIncomingPacketQueue();
try
{
DADR dadr = new DADR(_bnm, BACnetPacket.ADDRESS_TYPE.LOCAL_BROADCAST);
BACnetUtil.SendWhoIs(_apm, _bnm, dadr);
// Sleep(1000); // and perhaps longer on large networks....
WaitForQuietOnIncomingPacketQueue();
// check the incoming packets, make sure that they are all local addresses
while (_apm.pktQueueToApplication.Count > 0)
{
if (_apm.pktQueueToApplication.Count == 0)
{
// wait just a while longer, there may be more packets dribbling in. So by pausing here
// we wait 1 second longer than the last packet to arrive... seems reasonable to me
Sleep(1000);
}
BACnetPacket pkt = _apm.pktQueueToApplication.myDequeue();
pkt.DecodeBACnet();
if (pkt.srcDevice.adr.directlyConnected != true)
{
MarkDiagnosticFailed("A device [" + pkt.srcDevice.adr.ToString() + "] that is not directly connected responded");
someFails = true;
}
}
}
catch (TimeoutException)
{
// todo-put a wrapper around execute and catch all executions in a common area..
MarkDiagnosticFailed("Timeout");
return;
}
if (someFails == false)
{
MarkDiagnosticSuccess(); // Mark this diagnostic a success, any failures will re
}
}