MQTT_GetDisconnectPacketSize

Get the size of an MQTT DISCONNECT packet.

MQTTStatus_t MQTT_GetDisconnectPacketSize( size_t * pPacketSize );

Parameters

[out]

pPacketSize

The size of the MQTT DISCONNECT packet.

Returns

MQTTSuccess, or MQTTBadParameter if pPacketSize is NULL.

Example

// Variables used in this example.
MQTTStatus_t status;
size_t packetSize = 0;
 
// Get the size requirement for the disconnect packet.
status = MQTT_GetDisconnectPacketSize( &packetSize );
assert( status == MQTTSuccess );
assert( packetSize == 2 );
 
// The application should allocate or use a static #MQTTFixedBuffer_t of
// size >= 2 to serialize the disconnect packet.