private void NotifySuspend()
{
//DiagnosticsHelper.UWP.Diag.DebugPrint("in NotifySuspend");
OutputDebugString("edetocCCTSample_Tracing: Entering NotifySuspend");
try
{
Task.Run(() =>
{
if (_communicationModule != null)
{
OutputDebugString("edetocCCTSample_Tracing: Need to reset CommModule");
_communicationModule.Reset();
_communicationModule = null;
OutputDebugString("edetocCCTSample_Tracing: CommModule reset done");
}
// create communication channel
_communicationModule = new CommModule();
_communicationModule.SetupTransport(GetServerUri());
}).Wait();
}
catch (Exception ex)
{
OutputDebugString("edetocCCTSample_Tracing: NotifySuspend. Exception" + ex.Message);
}
OutputDebugString("edetocCCTSample_Tracing: Leaving NotifySuspend");
}
Task ResetTransportTaskAsync()
{
return
(Task.Factory.StartNew(() =>
{
if (commModule != null)
{
commModule.Reset();
}
}));
}
async private void ConnectButton_Click(object sender, RoutedEventArgs e)
{
if (connectionState == ConnectionStates.NotConnected)
{
if (!Uri.TryCreate(ServerUri.Text.Trim(), UriKind.Absolute, out serverUri))
{
Diag.DebugPrint("Please provide valid uri input.");
return;
}
ConnectButton.Content = "Connecting...";
connectionState = ConnectionStates.Connecting;
// Register for network status change notification
RegisterNetworkChangeTask();
// Finally, initiate the connection and set up transport
// to be CCT capable. But do this heavy lifting outside of the UI thread.
bool result = await Task <bool> .Factory.StartNew(() =>
{
return(commModule.SetupTransport(serverUri));
});
Diag.DebugPrint("CommModule setup result: " + result);
if (result == true)
{
ConnectButton.Content = "Disconnect";
connectionState = ConnectionStates.Connected;
}
else
{
ConnectButton.Content = "failed to connect. click to retry";
connectionState = ConnectionStates.NotConnected;
}
}
else if (connectionState == ConnectionStates.Connected)
{
await Task.Factory.StartNew(() =>
{
commModule.Reset();
});
connectionState = ConnectionStates.NotConnected;
ConnectButton.Content = "Connect";
}
}
public void Run(IBackgroundTaskInstance taskInstance)
{
if (taskInstance == null)
{
Diag.DebugPrint("NetworkChangeTask: taskInstance was null");
return;
}
// In this example, the channel name has been hardcoded to lookup the property bag
// for any previous contexts. The channel name may be used in more sophisticated ways
// in case an app has multiple controlchanneltrigger objects.
string channelId = "channelOne";
if (((IDictionary <string, object>)CoreApplication.Properties).ContainsKey(channelId))
{
try
{
AppContext appContext = null;
lock (CoreApplication.Properties)
{
appContext = ((IDictionary <string, object>)CoreApplication.Properties)[channelId] as AppContext;
}
if (appContext != null && appContext.CommInstance != null)
{
CommModule commInstance = appContext.CommInstance;
// Clear any existing channels, sockets etc.
commInstance.Reset();
// Create CCT enabled transport.
commInstance.SetupTransport(commInstance.serverUri);
}
}
catch (Exception exp)
{
Diag.DebugPrint("Registering with CCT failed with: " + exp.ToString());
}
}
else
{
Diag.DebugPrint("Cannot find AppContext key channelOne");
}
Diag.DebugPrint("Systemtask - " + taskInstance.Task.Name + " finished.");
}
async private void ConnectButton_Click(object sender, RoutedEventArgs e)
{
if (connectionState == connectionStates.notConnected)
{
ConnectButton.Content = "Connecting...";
connectionState = connectionStates.connecting;
string serverUri = GetServerUri();
RegisterNetworkChangeTask();
// Finally, initiate the connection and set up transport
// to be RTC capable. But do this heavy lifting outside of the UI thread.
bool result = await Task <bool> .Factory.StartNew(() =>
{
return(commModule.SetupTransport(serverUri));
});
Diag.DebugPrint("CommModule setup result: " + result);
if (result == true)
{
ConnectButton.Content = "Disconnect";
connectionState = connectionStates.connected;
}
else
{
ConnectButton.Content = "failed to connect. click to retry";
connectionState = connectionStates.notConnected;
}
}
else if (connectionState == connectionStates.connected)
{
await Task.Factory.StartNew(() =>
{
commModule.Reset();
});
connectionState = connectionStates.notConnected;
ConnectButton.Content = "Connect";
}
}
public void Run(IBackgroundTaskInstance taskInstance)
{
if (taskInstance == null)
{
Diag.DebugPrint("KATask: taskInstance was null");
return;
}
Diag.DebugPrint("KATask " + taskInstance.Task.Name + " Starting...");
// Use the ControlChannelTriggerEventDetails object to derive the context for this background task.
// The context happens to be the channelId that apps can use to differentiate between
// various instances of the channel..
var channelEventArgs = taskInstance.TriggerDetails as IControlChannelTriggerEventDetails;
ControlChannelTrigger channel = channelEventArgs.ControlChannelTrigger;
if (channel == null)
{
Diag.DebugPrint("Channel object may have been deleted.");
return;
}
string channelId = channel.ControlChannelTriggerId;
if (((IDictionary <string, object>)CoreApplication.Properties).ContainsKey(channelId))
{
try
{
var appContext = ((IDictionary <string, object>)CoreApplication.Properties)[channelId] as AppContext;
string KeepAliveMessage = "KeepAlive Message";
if (appContext != null && appContext.CommInstance != null)
{
CommModule commModule = appContext.CommInstance;
bool result;
result = commModule.SendKAMessage(KeepAliveMessage);
if (result == true)
{
// Call FlushTransport on the channel object to ensure
// the packet is out of the process and on the wire before
// exiting the keepalive task.
commModule.channel.FlushTransport();
}
else
{
// Socket has not been set up. reconnect the transport and plug in to the controlchanneltrigger object.
commModule.Reset();
// Create RTC enabled transport.
commModule.SetupTransport(commModule.serverName, commModule.serverPort);
}
}
}
catch (Exception exp)
{
Diag.DebugPrint("KA Task failed with: " + exp.Message);
}
}
else
{
Diag.DebugPrint("Cannot find AppContext key channelOne");
}
Diag.DebugPrint("KATask " + taskInstance.Task.Name + " finished.");
}