/// <summary>
/// Create an instance of the IoTConnection_LL object
/// </summary>
/// <param name="connectionString">Azure IoT device connection string</param>
/// <param name="protocol">Required communicaton protocol</param>
/// <param name="userContextCallback">User data</param>
public IoTConnection_LL(string connectionString, Protocols protocol, UIntPtr userContextCallback)
{
_connectionString = connectionString;
_protocol = protocol;
_iotHandle = UIntPtr.Zero;
_messageConfirmationCallback = new MessageConfirmationCallback(confirmationCallback);
_messageCallback = new MessageCallback(messageReceived);
_reportedStateCallback = new ReportedStateCallback(reportedStateCallback);
_deviceMethodCallback = new DeviceMethodCallback(deviceMethodReceived);
_deviceTwinCallback = new DeviceTwinCallback(deviceTwinCallback);
_clientConnectionStatusCallback = new ClientConnectionStatusCallback(clientConnectionStatusCallback);
int ret;
ret = IoTWrapper.platform_init();
if (ret != 0)
{
throw new InvalidOperationException("Failed to intialize the platform: " + ret);
}
_iotHandle = IoTHubClient_LL_CreateFromConnectionString(_connectionString, getProtocolFunction(protocol));
if (_iotHandle == UIntPtr.Zero)
{
throw new InvalidOperationException("Failed to create IoT handle");
}
ret = IoTHubClient_LL_SetMessageCallback(_iotHandle, _messageCallback, userContextCallback);
if (ret != 0)
{
throw new IoTHubException("Failed to set message callback", ret);
}
ret = IoTHubClient_LL_SetDeviceMethodCallback(_iotHandle, _deviceMethodCallback, userContextCallback);
if (ret != 0)
{
throw new IoTHubException("Failed to set device method callback", ret);
}
ret = IoTHubClient_LL_SetDeviceTwinCallback(_iotHandle, _deviceTwinCallback, userContextCallback);
if (ret != 0)
{
throw new IoTHubException("Failed to set device twin callback", ret);
}
ret = IoTHubClient_LL_SetConnectionStatusCallback(_iotHandle, clientConnectionStatusCallback, UIntPtr.Zero);
if (ret != 0)
{
throw new IoTHubException("Failed to set client connection status callback", ret);
}
}
public static extern int IoTHubClient_LL_SendEventAsync(
UIntPtr iotHubClientHandle,
UIntPtr eventMessageHandle,
MessageConfirmationCallback eventConfirmationCallback,
UIntPtr userContextCallback);
