process_outgoing_message

Description:

[ Version ( since = "2.68" ) ]
public virtual Bytes process_outgoing_message (ref uint8 header, owned Bytes payload) throws Error

Process a message before it's sent.

If the payload isn't changed the given payload is just returned, otherwise g_bytes_unref is called on the given payload and a new Bytes is returned with the new data.

Extensions using reserved bits of the header will change them in header.

Parameters:

this	a WebsocketExtension
header	the message header
payload	the payload data

Returns:

the message payload data, or null in case of error