MqttUnsubscriptionCode constants

The return value after an MQTT client attempts to unsubscribe from a topic, indicating the result of the behavior.

MqttUnsubscriptionAdministrativeAction

(152) - The connection is closed due to an administrative action.

MqttUnsubscriptionImplementationSpecificError

(131) - The UNSUBSCRIBE is valid but the server does not accept it.

MqttUnsubscriptionKeepAliveTimeout

(141) - The connection is closed because no packet has been received for 1.5 times the keep alive time.

MqttUnsubscriptionMalformedPacket

(129) - The received packet does not conform to this specification.

MqttUnsubscriptionNoExisted

(17) - No matching topic filter is being used by the client.

MqttUnsubscriptionNotAuthorized

(135) - The client is not authorized to unsubscribe.

MqttUnsubscriptionPacketIdentifierInUse

(145) - The specified packet identifier is already in use.

MqttUnsubscriptionPacketTooLarge

(149) - The packet size is greater than the maximum packet size for this client or server.

MqttUnsubscriptionProtocolError

(130) - An unexpected or out of order packet was received.

MqttUnsubscriptionServerBusy

(137) - The server is busy and cannot continue processing requests from this client.

MqttUnsubscriptionServerMoved

(157) - The server is moved, and the client should permanently change its server location.

MqttUnsubscriptionServerShuttingDown

(139) - The server is shutting down.

MqttUnsubscriptionSessionTakenOver

(142) - Another connection using the same client ID has connected causing this connection to be closed.

MqttUnsubscriptionSuccess

(0) - The subscription is deleted.

MqttUnsubscriptionTopicFilterInvalid

(143) - The topic filter is correctly formed but is not allowed for this client.

MqttUnsubscriptionUnspecifiedError

(128) - The unsubscription could not be completed and the server either does not wish to reveal the reason or none of the other reason codes apply.

MqttUnsubscriptionUseAnotherServer

(156) - The client should temporarily change its server.