Functions

Functions of the MQTT library.

The MQTT library consists of the following functions.

• IotMqtt_Init
  One-time initialization function for the MQTT library.
• IotMqtt_Cleanup
  One-time deinitialization function for the MQTT library.
• IotMqtt_ReceiveCallback
  Network receive callback for the MQTT library.
• IotMqtt_Connect
  Establish a new MQTT connection.
• IotMqtt_Disconnect
  Closes an MQTT connection and frees resources.
• IotMqtt_SubscribeAsync
  Subscribes to the given array of topic filters and optionally receive an asynchronous notification when the subscribe completes.
• IotMqtt_SubscribeSync
  Subscribes to the given array of topic filters with a timeout.
• IotMqtt_UnsubscribeAsync
  Unsubscribes from the given array of topic filters and optionally receive an asynchronous notification when the unsubscribe completes.
• IotMqtt_UnsubscribeSync
  Unsubscribes from a given array of topic filters with a timeout.
• IotMqtt_PublishAsync
  Publishes a message to the given topic name and optionally receive an asynchronous notification when the publish completes.
• IotMqtt_PublishSync
  Publish a message to the given topic name with a timeout.
• IotMqtt_Wait
  Waits for an operation to complete.
• IotMqtt_strerror
  Returns a string that describes an IotMqttError_t.
• IotMqtt_OperationType
  Returns a string that describes an IotMqttOperationType_t.
• IotMqtt_IsSubscribed
  Check if an MQTT connection has a subscription for a topic filter.

Functions of the MQTT library.

The MQTT library consists of the following functions.

• IotMqtt_GetConnectPacketSize
  Calculate the size and "Remaining length" of a CONNECT packet generated from the given parameters.
• IotMqtt_SerializeConnect
  Generate a CONNECT packet from the given parameters.
• IotMqtt_GetSubscriptionPacketSize
  Calculate the size and "Remaining length" of a SUBSCRIBE or UNSUBSCRIBE packet generated from the given parameters.
• IotMqtt_SerializeSubscribe
  Generate a SUBSCRIBE packet from the given parameters.
• IotMqtt_SerializeUnsubscribe
  Generate a UNSUBSCRIBE packet from the given parameters.
• IotMqtt_GetPublishPacketSize
  Calculate the size and "Remaining length" of a PUBLISH packet generated from the given parameters.
• IotMqtt_SerializePublish
  Generate a PUBLISH packet from the given parameters.
• IotMqtt_SerializeDisconnect
  Generate a DISCONNECT packet.
• IotMqtt_SerializePingreq
  Generate a PINGREQ packet.
• IotMqtt_GetIncomingMQTTPacketTypeAndLength
  Extract MQTT packet type and length from incoming packet.
• IotMqtt_DeserializeResponse
  Deserialize incoming ack packets.
• IotMqtt_DeserializePublish
  Deserialize incoming publish packet.