Sets the UNIX file descriptors associated with @message. As a
side-effect the %G_DBUS_MESSAGE_HEADER_FIELD_NUM_UNIX_FDS header
field is set to the number of fds in @fd_list (or cleared if
@fd_list is %NULL).
This method is only available on UNIX.
When designing D-Bus APIs that are intended to be interoperable,
please note that non-GDBus implementations of D-Bus can usually only
access file descriptors if they are referenced by a value of type
%G_VARIANT_TYPE_HANDLE in the body of the message.
Sets the UNIX file descriptors associated with @message. As a side-effect the %G_DBUS_MESSAGE_HEADER_FIELD_NUM_UNIX_FDS header field is set to the number of fds in @fd_list (or cleared if @fd_list is %NULL).
This method is only available on UNIX.
When designing D-Bus APIs that are intended to be interoperable, please note that non-GDBus implementations of D-Bus can usually only access file descriptors if they are referenced by a value of type %G_VARIANT_TYPE_HANDLE in the body of the message.