private async Task CloseReceiver(CancellationToken cancellationToken)
{
if (_receiver == null || _receiver.IsDisposed)
{
return;
}
try
{
if (_sessionCloseHandler != null)
{
var args = new ProcessSessionEventArgs(_receiver, cancellationToken);
await _sessionCloseHandler(args).ConfigureAwait(false);
}
}
catch (Exception exception)
{
await RaiseExceptionReceived(
new ProcessErrorEventArgs(
exception,
ServiceBusErrorSource.CloseMessageSession,
_fullyQualifiedNamespace,
_entityPath))
.ConfigureAwait(false);
}
finally
{
// cancel the automatic session lock renewal
await CancelTask(_sessionLockRenewalCancellationSource, _sessionLockRenewalTask).ConfigureAwait(false);
// Always at least attempt to dispose. If this fails, it won't be retried.
await _receiver.DisposeAsync().ConfigureAwait(false);
_receiver = null;
}
}
private async Task CloseReceiver(CancellationToken cancellationToken)
{
if (_receiver == null)
{
return;
}
try
{
if (Processor._sessionClosingAsync != null)
{
var args = new ProcessSessionEventArgs(_receiver, cancellationToken);
await Processor.OnSessionClosingAsync(args).ConfigureAwait(false);
}
}
catch (Exception exception)
{
await RaiseExceptionReceived(
new ProcessErrorEventArgs(
exception,
ServiceBusErrorSource.CloseSession,
Processor.FullyQualifiedNamespace,
Processor.EntityPath,
cancellationToken))
.ConfigureAwait(false);
}
finally
{
// cancel the automatic session lock renewal
try
{
if (_sessionLockRenewalCancellationSource != null)
{
_sessionLockRenewalCancellationSource.Cancel();
_sessionLockRenewalCancellationSource.Dispose();
await _sessionLockRenewalTask.ConfigureAwait(false);
}
}
catch (Exception ex) when(ex is TaskCanceledException)
{
// Nothing to do here. These exceptions are expected.
}
try
{
// Always at least attempt to dispose. If this fails, it won't be retried.
await _receiver.DisposeAsync().ConfigureAwait(false);
}
finally
{
// If we call DisposeAsync, we need to reset to null even if DisposeAsync throws, otherwise we can
// end up in a bad state.
_receiver = null;
_receiveTimeout = false;
}
}
}