/// <summary>
/// Stops the signal service through tearing down the bus
/// </summary>
/// <param name="sender">UI control which signaled the click event</param>
/// <param name="e">arguments associated with the click event</param>
private async void Button_StopClick(object sender, RoutedEventArgs e)
{
if (busAtt != null)
{
try
{
await busAtt.DisconnectAsync(SignalConsumerGlobals.ConnectSpec);
await busAtt.StopAsync();
this.OutputLine("Signal Consumer has Exited.");
}
catch (Exception ex)
{
string exceptionString = ex.ToString();
this.OutputLine("Exiting Basic Service Produced Errors!");
System.Diagnostics.Debug.WriteLine("Exception: " + exceptionString);
}
busAtt = null;
busListener = null;
}
}
/// <summary>
/// Connects to the bus and registers a signal handler for when the 'name' property changes.
/// </summary>
/// <param name="sender">UI control which signaled the click event.</param>
/// <param name="e">arguments associated with the click event.</param>
private void Button_RunClick(object sender, RoutedEventArgs e)
{
if (busAtt == null)
{
Task task = new Task(async() =>
{
try
{
busAtt = new BusAttachment("SignalConsumerApp", true, 4);
// create and activate the interface
InterfaceDescription[] interfaceDescription = new InterfaceDescription[1];
busAtt.CreateInterface(SignalConsumerGlobals.InterfaceName, interfaceDescription, false);
interfaceDescription[0].AddSignal("nameChanged", "s", "newName", (byte)0, string.Empty);
interfaceDescription[0].AddProperty("name", "s", (byte)PropAccessType.PROP_ACCESS_RW);
interfaceDescription[0].Activate();
busListener = new SignalConsumerBusListener(busAtt, foundNameEvent);
OutputLine("BusAttachment and BusListener Created.");
busAtt.RegisterBusListener(busListener);
OutputLine("BusListener Registered.");
busAtt.Start();
busAtt.ConnectAsync(SignalConsumerGlobals.ConnectSpec).AsTask().Wait();
OutputLine("Bundled Daemon Registered.");
OutputLine("BusAttachment Connected to " + SignalConsumerGlobals.ConnectSpec + ".");
busAtt.FindAdvertisedName(SignalConsumerGlobals.WellKnownServiceName);
foundNameEvent.WaitOne();
/* Configure session properties and request a session with device with wellKnownName */
SessionOpts sessionOpts = new SessionOpts(
SignalConsumerGlobals.SessionProps.TrType,
SignalConsumerGlobals.SessionProps.IsMultiPoint,
SignalConsumerGlobals.SessionProps.PrType,
SignalConsumerGlobals.SessionProps.TmType);
SessionOpts[] sessionOptsOut = new SessionOpts[1];
OutputLine("Requesting a session with the well known service name.");
JoinSessionResult joinResult = await busAtt.JoinSessionAsync(
SignalConsumerGlobals.WellKnownServiceName,
SignalConsumerGlobals.SessionProps.SessionPort,
busListener,
sessionOpts,
sessionOptsOut,
null);
if (QStatus.ER_OK == joinResult.Status)
{
OutputLine("Join Session was successful (sessionId=" + joinResult.SessionId + ").");
busAtt.AddMatch("type='signal',interface='org.alljoyn.Bus.signal_sample',member='nameChanged'");
OutputLine("Subscribed to the 'nameChanged' signal.");
}
else
{
OutputLine("Join Session was unsuccessful.");
}
}
catch (Exception ex)
{
OutputLine("Errors were produced while establishing the application.");
QStatus status = AllJoynException.GetErrorCode(ex.HResult);
busAtt = null;
}
});
task.Start();
}
}