MQTT_PROTOCOL_T

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Models the MQTT message types

This topic lists the expressions that are provided by this class.

AUTH

Operates on MQTT AUTH message

Returns: mqtt_auth_t

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COMMAND

Return the MQTT command type

Returns: mqtt_command_e

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CONNACK

Operates on MQTT CONNACK message

Returns: mqtt_connack_t

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CONNECT

Operates on MQTT CONNECT message

Returns: mqtt_connect_t

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DISCONNECT

Operates on MQTT Disconnect message

Returns: mqtt_disconnect_t

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FROM_CLIENT

Returns true if the MQTT message is received from Client

Returns: bool_at

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FROM_SERVER

Returns true if the MQTT message is received from Server

Returns: bool_at

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HEADER

Return the MQTT fixed header

Returns: mqtt_header_t

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MESSAGE_LENGTH

Return the length of the MQTT message

Returns: num_at

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NEW_CONNACK (uint errcode)

Creates a new MQTT CONNACK message based on error code. The admin must make sure that the error code being configured is valid as per the protocol version.

Parameters:

errcode- Error Code

Returns: text_t

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PUBACK

Operates on MQTT PUBACK message.

Returns: mqtt_puback_t

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PUBCOMP

Operates on MQTT PUBCOMP message.

Returns: mqtt_pubcomp_t

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PUBLISH

Operates on MQTT PUBLISH message.

Returns: mqtt_publish_t

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PUBREC

Operates on MQTT PUBREC message.

Returns: mqtt_pubrec_t

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PUBREL

Operates on MQTT PUBREL message.

Returns: mqtt_pubrel_t

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SUBACK

Operates on MQTT SUBACK message.

Returns: mqtt_suback_t

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SUBSCRIBE

Operates on MQTT SUBSCRIBE message.

Returns: mqtt_subscribe_t

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UNSUBACK

Operates on MQTT UNSUBACK message

Returns: mqtt_unsuback_t

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UNSUBSCRIBE

Operates on MQTT UNSUBSCRIBE message

Returns: mqtt_unsubscribe_t

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VERSION

Return the MQTT protocol version

Returns: num_at

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