public async Task EnsureTwinLinksAreOpenedAsync(TimeSpan timeout)
{
if (Volatile.Read(ref _twinLinksOpened) == true) return;
if (Logging.IsEnabled) Logging.Enter(this, timeout, $"{nameof(EnsureTwinLinksAreOpenedAsync)}");
try
{
await _twinLinksLock.WaitAsync().ConfigureAwait(false);
if (_twinLinksOpened) return;
Debug.Assert(_twinSendingLink == null);
Debug.Assert(_twinReceivingLink == null);
string correlationIdSuffix = Guid.NewGuid().ToString();
Task<ReceivingAmqpLink> receiveLinkCreator =
AmqpLinkHelper.OpenTwinReceiverLinkAsync(
_deviceIdentity,
_amqpSession,
correlationIdSuffix,
timeout);
Task<SendingAmqpLink> sendingLinkCreator =
AmqpLinkHelper.OpenTwinSenderLinkAsync(
_deviceIdentity,
_amqpSession,
correlationIdSuffix,
timeout);
await Task.WhenAll(receiveLinkCreator, sendingLinkCreator).ConfigureAwait(false);
_twinSendingLink = sendingLinkCreator.Result;
_twinSendingLink.Closed += OnLinkDisconnected;
_twinReceivingLink = receiveLinkCreator.Result;
_twinReceivingLink.RegisterMessageListener(OnDesiredPropertyReceived);
_twinReceivingLink.Closed += OnLinkDisconnected;
_twinLinksOpened = true;
if (Logging.IsEnabled) Logging.Associate(this, this, _twinReceivingLink, $"{nameof(EnsureTwinLinksAreOpenedAsync)}");
if (Logging.IsEnabled) Logging.Associate(this, this, _twinSendingLink, $"{nameof(EnsureTwinLinksAreOpenedAsync)}");
}
catch (Exception ex) when (!ex.IsFatal())
{
_twinReceivingLink?.Abort();
_twinSendingLink?.Abort();
_twinReceivingLink = null;
_twinSendingLink = null;
throw;
}
finally
{
_twinLinksLock.Release();
if (Logging.IsEnabled) Logging.Exit(this, timeout, $"{nameof(EnsureTwinLinksAreOpenedAsync)}");
}
}
public async Task EnableMethodsAsync(TimeSpan timeout)
{
if (Logging.IsEnabled) Logging.Enter(this, timeout, $"{nameof(EnableMethodsAsync)}");
try
{
Debug.Assert(_methodSendingLink == null);
Debug.Assert(_methodReceivingLink == null);
string correlationIdSuffix = Guid.NewGuid().ToString();
Task<ReceivingAmqpLink> receiveLinkCreator =
AmqpLinkHelper.OpenMethodsReceiverLinkAsync(
_deviceIdentity,
_amqpSession,
correlationIdSuffix,
timeout);
Task<SendingAmqpLink> sendingLinkCreator =
AmqpLinkHelper.OpenMethodsSenderLinkAsync(
_deviceIdentity,
_amqpSession,
correlationIdSuffix,
timeout);
await Task.WhenAll(receiveLinkCreator, sendingLinkCreator).ConfigureAwait(false);
_methodReceivingLink = receiveLinkCreator.Result;
_methodSendingLink = sendingLinkCreator.Result;
_methodReceivingLink.RegisterMessageListener(OnMethodReceived);
_methodSendingLink.Closed += OnLinkDisconnected;
_methodReceivingLink.Closed += OnLinkDisconnected;
if (Logging.IsEnabled) Logging.Associate(this, _methodReceivingLink, $"{nameof(_methodReceivingLink)}");
if (Logging.IsEnabled) Logging.Associate(this, _methodSendingLink, $"{nameof(_methodSendingLink)}");
}
catch (Exception)
{
_methodReceivingLink?.Abort();
_methodReceivingLink = null;
_methodSendingLink?.Abort();
_methodSendingLink = null;
throw;
}
finally
{
if (Logging.IsEnabled) Logging.Exit(this, timeout, $"{nameof(EnableMethodsAsync)}");
}
}
internal void Abort()
{
_receivingAmqpLink.Abort();
}