string FindDevice()
{
BeginStep("Transmit multicast PROBE message");
LogStepEvent("Retransmit once per 5 seconds until a response is received or timeout (no more than 50 times)");
DeviceFinder finder = new DeviceFinder(_nic.IP, _semaphore.StopEvent);
finder.OnProgress += finder_OnProgress;
Uri uri = new Uri(_cameraAddress);
System.Net.IPAddress ip = System.Net.IPAddress.Parse(uri.Host);
DeviceFinder.FindDeviceDelegate del = new DeviceFinder.FindDeviceDelegate(finder.ProbeDevice);
IAsyncResult result = del.BeginInvoke(ip, 50, 5000, null, null);
WaitHandle[] handles = new WaitHandle[] { _semaphore.StopEvent, result.AsyncWaitHandle };
int handle = WaitHandle.WaitAny(handles);
if (handle == 0)
{
finder.Stop();
throw new StopEventException();
}
string data = del.EndInvoke(result);
if (!string.IsNullOrEmpty(data))
{
LogStepEvent(string.Format("PROBE match message: {0}", data));
}
StepPassed();
Assert(data != null, "Device not found", "Check that answer has been received");
return(data);
}