[−][src]Module paho_mqtt::errors

The MQTT errors

Enums

The errors from an MQTT operation.

BadMqttOption	Using an option for a different version of MQTT than the client or connection is currently using.
BadProtocol	Protocol prefix in serverURI must be "tcp://", "ssl://", "ws://", or "wss://" The TLS enabled prefixes (ssl, wss) are only valid when using the AAL/TLS version of the library.
BadQos	A qos parameter is not 0, 1 or 2
BadStructure	A structure parameter does not have the correct eyecatcher and version number.
BadUtfString	An invalid UTF-8 string has been detected.
Disconnected	The client is disconnected
Failure	A generic error code indicating the failure of an MQTT client operation
MaxBufferedMessages	No more messages can be buffered
MaxMessagesInflight	The maximum number of messages allowed to be simultaneously in-flight has been reached.
NoMoreMsgids	All 65535 MQTT msgids are being used
NullParameter	A NULL parameter has been supplied when this is invalid.
OperationIncomplete	The request is being discarded when not complete
PersistenceError	An error in the message persistence
SslNotSupported	Attempting SSL connection using non-SSL version of library
TopicNameTruncated	The topic has been truncated (the topic string includes embedded NULL characters). String functions will not access the full topic. Use the topic length value to access the full topic.
WrongMqttVersion	Call not applicable to the current version of MQTT in use.
ZeroLenWillTopic	Zero-length will topics not supported.

The result type for MQTT operations.