MqttPublishCode constants

The return value after an MQTT client attempts to publish a message, indicating the result of the behavior.

MqttPublishAdministrativeAction

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

MqttPublishImplementationSpecificError

(131) - The PUBLISH is valid but the receiver is not willing to accept it.

MqttPublishKeepAliveTimeout

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

MqttPublishMalformedPacket

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

MqttPublishMessageRateTooHigh

(150) - The received data rate is too high.

MqttPublishNoMatchingSubscribers

(16) - The message is accepted but there are no subscribers.

MqttPublishNotAuthorized

(135) - The PUBLISH is not authorized.

MqttPublishPacketIdentifierInUse

(145) - The packet identifier is already in use. This might indicate a mismatch in the session state between the client and server.

MqttPublishPacketTooLarge

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

MqttPublishPayloadFormatInvalid

(153) - The payload format does not match the one specified in the payload format indicator.

MqttPublishProtocolError

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

MqttPublishQoSNotSupported

(155) - The client specified a QoS greater than the QoS specified in a maximum QoS in the CONNACK.

MqttPublishQuotaExceeded

(151) - An implementation or administrative imposed limit has been exceeded.

MqttPublishReceiveMaximumExceeded

(147) - The client or server has received more than receive maximum publication for which it has not sent PUBACK or PUBCOMP.

MqttPublishRetainNotSupported

(154) - The server does not support retained messages.

MqttPublishServerBusy

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

MqttPublishServerMoved

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

MqttPublishServerShuttingDown

(139) - The server is shutting down.

MqttPublishSessionTakenOver

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

MqttPublishSuccess

(0) - The message is accepted.

MqttPublishTopicAliasInvalid

(148) - The client or server has received a PUBLISH packet containing a topic alias, which is greater than the maximum topic alias it sent in the CONNECT or CONNACK packet.

MqttPublishTopicNameinvalid

(144) - The topic name is not malformed but is not accepted by this client or server.

MqttPublishUnspecifiedError

(128) - The receiver does not accept the publish but either does not want to reveal the reason, or it does not match one of the other values.

MqttPublishUseAnotherServer

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