GObject +----GSocketControlMessage +----GUnixFDMessage
\link{GSocketControlMessage}
contains a list of file descriptors.
It may be sent using gSocketSendMessage
and received using
gSocketReceiveMessage
over UNIX sockets (ie: sockets in the
G_SOCKET_ADDRESS_UNIX
family). For an easier way to send and receive file descriptors over
stream-oriented UNIX sockets, see gUnixConnectionSendFd()
and
gUnixConnectionReceiveFd()
.