Structure used for scatter/gather data output when sending multiple messages or packets in one go. You generally pass in an array of GOutputVectors and the operation will use all the buffers as if they were one buffer.
If address is NULL then the message is sent to the default receiver (as previously set by Socket.connect).
a gio.SocketAddress, or NULL
initialize to 0. Will be set to the number of bytes that have been sent
a pointer to an array of gio.SocketControlMessages, or NULL.
number of elements in control_messages.
the number of output vectors pointed to by vectors.
pointer to an array of output vectors