MQTT_SerializeDisconnect

Serialize an MQTT DISCONNECT packet into the given buffer.

MQTTStatus_t MQTT_SerializeDisconnect( const MQTTFixedBuffer_t * pFixedBuffer );

The input MQTTFixedBuffer_t.size must be at least as large as the size returned by MQTT_GetDisconnectPacketSize.

Parameters

[out]

pFixedBuffer

Buffer for packet serialization.

Returns

MQTTNoMemory if pFixedBuffer is too small to hold the MQTT packet; MQTTBadParameter if invalid parameters are passed; MQTTSuccess otherwise.

Example

// Variables used in this example.
MQTTStatus_t status;
MQTTFixedBuffer_t fixedBuffer;
uint8_t buffer[ BUFFER_SIZE ];
 
fixedBuffer.pBuffer = buffer;
fixedBuffer.size = BUFFER_SIZE;
 
// Get the disconnect packet size.
status = MQTT_GetDisconnectPacketSize( &packetSize );
assert( status == MQTTSuccess );
assert( packetSize <= BUFFER_SIZE );
 
// Serialize the disconnect into the fixed buffer.
status = MQTT_SerializeDisconnect( &fixedBuffer );
 
if( status == MQTTSuccess )
{
     // The disconnect packet can now be sent to the broker.
}