public TransportInitializationHandler(IHttpClient httpClient,
IConnection connection,
string connectionData,
string transport,
CancellationToken disconnectToken,
TransportHelper transportHelper)
{
if (connection == null)
{
throw new ArgumentNullException("connection");
}
_connection = connection;
_httpClient = httpClient;
_connectionData = connectionData;
_transport = transport;
_transportHelper = transportHelper;
_initializationTask = new DispatchingTaskCompletionSource <object>();
_initializationInvoker = new ThreadSafeInvoker();
// Default event
OnFailure = () => { };
// We want to fail if the disconnect token is tripped while we're waiting on initialization
try
{
_tokenCleanup = disconnectToken.SafeRegister(
_ => Fail(new OperationCanceledException(Resources.Error_ConnectionCancelled, disconnectToken)),
state: null);
}
catch (ObjectDisposedException)
{
// We only dispose this token after cancelling it, so consider this cancellation.
// The ODE is only thrown on .NET 4.5.2 and below (.NET 4.6 no longer throws ODE from CTS.Register)
Fail(new OperationCanceledException(Resources.Error_ConnectionCancelled, disconnectToken));
}
TaskAsyncHelper.Delay(connection.TotalTransportConnectTimeout)
.Then(() =>
{
// don't timeout once connect request has finished
if (Interlocked.CompareExchange(ref _state, InitializationState.Failed, InitializationState.Initial) ==
InitializationState.Initial)
{
Fail(new TimeoutException(Resources.Error_TransportTimedOutTryingToConnect));
}
});
}
public TransportInitializationHandler(TimeSpan failureTimeout, CancellationToken disconnectToken)
{
_initializationTask = new TaskCompletionSource <object>();
_initializationInvoker = new ThreadSafeInvoker();
// Default event
OnFailure = () => { };
// We want to fail if the disconnect token is tripped while we're waiting on initialization
_tokenCleanup = disconnectToken.SafeRegister(_ =>
{
Fail();
},
state: null);
TaskAsyncHelper.Delay(failureTimeout).Then(() =>
{
Fail(new TimeoutException(Resources.Error_TransportTimedOutTryingToConnect));
});
}