public async Task EnableEventReceiveAsync(TimeSpan timeout)
        {
            if (_closed)
            {
                throw new IotHubException("Device is now offline.", false);
            }

            if (Logging.IsEnabled)
            {
                Logging.Enter(this, timeout, $"{nameof(EnableEventReceiveAsync)}");
            }

            AmqpIoTSession amqpIoTSession = await EnsureSessionAsync(timeout).ConfigureAwait(false);

            bool gain = await _eventReceivingLinkLock.WaitAsync(timeout).ConfigureAwait(false);

            if (!gain)
            {
                throw new TimeoutException();
            }

            try
            {
                if (_eventReceivingLink == null || _eventReceivingLink.IsClosing())
                {
                    _eventReceivingLink?.SafeClose();

                    _eventReceivingLink = await amqpIoTSession.OpenEventsReceiverLinkAsync(_deviceIdentity, timeout).ConfigureAwait(false);

                    _eventReceivingLink.Closed += (obj, arg) =>
                    {
                        amqpIoTSession.SafeClose();
                    };
                    _eventReceivingLink.RegisterEventListener(OnEventsReceived);
                    if (Logging.IsEnabled)
                    {
                        Logging.Associate(this, this, _eventReceivingLink, $"{nameof(EnableEventReceiveAsync)}");
                    }
                }
            }
            finally
            {
                _eventReceivingLinkLock.Release();
                if (Logging.IsEnabled)
                {
                    Logging.Exit(this, timeout, $"{nameof(EnableEventReceiveAsync)}");
                }
            }
        }
Beispiel #2
0
        private async Task OpenTwinReceiverLinkAsync(AmqpIoTSession amqpIoTSession, string correlationIdSuffix, TimeSpan timeout)
        {
            if (_twinReceivingLink == null || _twinReceivingLink.IsClosing())
            {
                _twinReceivingLink = await amqpIoTSession.OpenTwinReceiverLinkAsync(_deviceIdentity, correlationIdSuffix, timeout).ConfigureAwait(false);

                _twinReceivingLink.Closed += (obj, arg) => {
                    amqpIoTSession.SafeClose();
                };
                _twinReceivingLink.RegisterTwinListener(OnDesiredPropertyReceived);
                if (Logging.IsEnabled)
                {
                    Logging.Associate(this, _twinReceivingLink, $"{nameof(_twinReceivingLink)}");
                }
            }
        }
Beispiel #3
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        private async Task OpenMethodsReceiverLinkAsync(AmqpIoTSession amqpIoTSession, string correlationIdSuffix, TimeSpan timeout)
        {
            if (_methodReceivingLink == null || _methodReceivingLink.IsClosing())
            {
                _methodReceivingLink?.SafeClose();

                _methodReceivingLink = await amqpIoTSession.OpenMethodsReceiverLinkAsync(_deviceIdentity, correlationIdSuffix, timeout).ConfigureAwait(false);

                _methodReceivingLink.Closed += (obj, arg) =>
                {
                    amqpIoTSession.SafeClose();
                };
                _methodReceivingLink.RegisterMethodListener(OnMethodReceived);
                Logging.Associate(this, _methodReceivingLink, nameof(_methodReceivingLink));
            }
        }
Beispiel #4
0
        private async Task EnsureMessageReceivingLinkIsOpenAsync(TimeSpan timeout, bool enableCallback = false)
        {
            if (_closed)
            {
                throw new IotHubException("Device is now offline.", false);
            }

            Logging.Enter(this, timeout, nameof(EnsureMessageReceivingLinkIsOpenAsync));

            AmqpIoTSession amqpIoTSession = await EnsureSessionIsOpenAsync(timeout).ConfigureAwait(false);

            bool enteredSemaphore = await _messageReceivingLinkSemaphore.WaitAsync(timeout).ConfigureAwait(false);

            if (!enteredSemaphore)
            {
                throw new TimeoutException("Failed to enter the semaphore required for ensuring that AMQP message receiver links are open.");
            }

            try
            {
                if (_messageReceivingLink == null || _messageReceivingLink.IsClosing())
                {
                    _messageReceivingLink?.SafeClose();

                    _messageReceivingLink = await amqpIoTSession.OpenMessageReceiverLinkAsync(_deviceIdentity, timeout).ConfigureAwait(false);

                    _messageReceivingLink.Closed += (obj, arg) =>
                    {
                        amqpIoTSession.SafeClose();
                    };
                    Logging.Associate(this, this, _messageReceivingLink, nameof(EnsureMessageReceivingLinkIsOpenAsync));
                }

                if (enableCallback)
                {
                    _messageReceivingLink.RegisterReceiveMessageListener(OnDeviceMessageReceived);
                }
            }
            finally
            {
                _messageReceivingLinkSemaphore.Release();
                Logging.Exit(this, timeout, nameof(EnsureMessageReceivingLinkIsOpenAsync));
            }
        }