private async void StartPingLoop()
{
await Task.Delay(pingDelayMs);
while (!isClosed)
{
try
{
var pingRequest = new PingRequest();
var pingSendTask = Send(pingRequest).ContinueWith(t => { var ignored = t.Exception; }, TaskContinuationOptions.OnlyOnFaulted);
var pingTimeoutTask = Task.Delay(pingTimeoutMs);
if (await Task.WhenAny(pingTimeoutTask, pingSendTask) == pingTimeoutTask)
{
Debug.WriteLine($"Ping timed-out({pingTimeoutMs / 1000}s). Closing connection.");
transport.Dispose(); // kill connection so that Listening thread could finish and break connection
break;
}
await Task.Delay(pingDelayMs);
}
catch (Exception ex)
{
if (!isClosed)
{
Debug.WriteLine($"Exception on Ping: {ex.Message}. Closing connection.");
transport.Dispose(); // kill connection so that Listening thread could finish and break connection
break;
}
}
}
}
