public bool Subscribe(Guid correlationId, TcpPackageConnection connection)
{
Ensure.NotNull(connection, "connection");
if (_subscription != null || _unsubscribed != 0)
return false;
_correlationId = correlationId;
connection.EnqueueSend(CreateSubscriptionPackage());
return true;
}
internal void DropSubscription(SubscriptionDropReason reason, Exception exc, TcpPackageConnection connection = null)
{
if (Interlocked.CompareExchange(ref _unsubscribed, 1, 0) == 0)
{
if (_verboseLogging)
_log.Debug("Subscription {0:B} to {1}: closing subscription, reason: {2}, exception: {3}...",
_correlationId, _streamId == string.Empty ? "<all>" : _streamId, reason, exc);
if (reason != SubscriptionDropReason.UserInitiated)
{
if (exc == null) throw new Exception(string.Format("No exception provided for subscription drop reason '{0}", reason));
_source.TrySetException(exc);
}
if (reason == SubscriptionDropReason.UserInitiated && _subscription != null && connection != null)
connection.EnqueueSend(CreateUnsubscriptionPackage());
if (_subscription != null)
ExecuteActionAsync(() => _subscriptionDropped(_subscription, reason, exc));
}
}