private void GetAddressThread()
{
if (_getAddressNeighbors != null)
{
int length = _getAddressNeighbors.Length;
for (int retry = 0; retry < 3; retry++)
{
for (int i = 0; i < length; i++)
{
UInt16 addr = _getAddressNeighbors[i];
Message.AddressRequest areq = new Message.AddressRequest();
areq.HopsLeft = cDefaultHopLimit;
areq.BrokerAddr = cCoordinatorShortAddr;
areq.DeviceAddr = _addrExt;
Frame frame = Frame.GetFrame(_macHeader, Message.AddressRequest.cLength + _macTailer);
if (areq.WriteToFrame(frame))
{
MacDataRequest(addr, ref frame);
if (_getAddressEvent.WaitOne(cAddressRequestTimeout, false))
{
// success
FinalizeStartup(Status.Success);
return;
}
if (_getAddressCancel)
return; // abort thread
}
Frame.Release(ref frame);
}
}
}
FinalizeStartup(Status.NoAddress);
}
private void HandleAddressRequest(
MacAddress srcAddr,
MacAddress dstAddr,
ref Frame sdu)
{
Message.AddressRequest areq = new Message.AddressRequest();
if (areq.ReadFromFrame(sdu))
{
if (_isAddrServer)
{
// process message as address server
Message.AddressReply arep = new Message.AddressReply();
if (_addrServer.AllocateAddress(areq.DeviceAddr, out arep.ShortAddr))
{
// send address
arep.HopsLeft = cDefaultHopLimit;
arep.BrokerAddr = areq.BrokerAddr;
arep.DeviceAddr = areq.DeviceAddr;
arep.DiscoveryInterval = _addrServer.TimeInterval;
Frame frame = Frame.GetFrame(_macHeader, Message.AddressReply.cLength + _macTailer);
if (arep.WriteToFrame(frame))
{
if (areq.BrokerAddr == cCoordinatorShortAddr)
{
// direct response
if (srcAddr.Mode == MacAddressingMode.ExtendedAddress)
{
MacDataRequest(srcAddr.ExtendedAddress, ref frame);
}
}
else
{
// send to broker
_routingTable.DataRequest(areq.BrokerAddr, ref frame, 0, null, true);
}
}
Frame.Release(ref frame);
}
}
else
{
// forward towards address server
if (areq.HopsLeft > 0)
{
areq.HopsLeft--;
if (areq.BrokerAddr == cCoordinatorShortAddr)
{
areq.BrokerAddr = _addrShort;
}
Frame frame = Frame.GetFrame(_macHeader, Message.AddressRequest.cLength + _macTailer);
if (areq.WriteToFrame(frame))
{
// send to address server
_routingTable.DataRequest(cCoordinatorShortAddr, ref frame, 0, null, true);
}
Frame.Release(ref frame);
}
}
}
}
