Inserts data into queue before sibling.
sibling must be part of queue. Since GLib 2.44 a NULL sibling pushes the data at the tail of the queue.
a GList link that must be part of queue, or NULL to push at the tail of the queue.
the data to insert
2.4
Inserts data into queue before sibling.
sibling must be part of queue. Since GLib 2.44 a NULL sibling pushes the data at the tail of the queue.