Publish a message to the given topic name with a timeout.

IotMqttError_t IotMqtt_PublishSync( IotMqttConnection_t mqttConnection,
                                    const IotMqttPublishInfo_t * pPublishInfo,
                                    uint32_t flags,
                                    uint32_t timeoutMs );

This function sends an MQTT PUBLISH packet to the server, then waits for a server response to the packet. Internally, this function is a call to IotMqtt_PublishAsync followed by IotMqtt_Wait. See IotMqtt_PublishAsync for more information about the MQTT PUBLISH operation.

Attention: QoS 2 messages are currently unsupported. Only 0 or 1 are valid for message QoS.

Parameters

[in]	mqttConnection	The MQTT connection to use for the publish.
[in]	pPublishInfo	MQTT publish parameters.
[in]	flags	Flags which modify the behavior of this function. See MQTT Function Flags. Currently, flags are ignored by this function; this parameter is for future-compatibility.
[in]	timeoutMs	If the MQTT server does not acknowledge a QoS 1 PUBLISH within this timeout in milliseconds, this function returns IOT_MQTT_TIMEOUT. This parameter is ignored for QoS 0 PUBLISH messages.

Returns

One of the following: