XBT_PUBLIC(void) xbt_fifo_unshift_item(xbt_fifo_t, xbt_fifo_item_t);
XBT_PUBLIC(xbt_fifo_item_t) xbt_fifo_shift_item(xbt_fifo_t);
-XBT_PUBLIC(void) xbt_fifo_remove(xbt_fifo_t, void *);
+XBT_PUBLIC(int) xbt_fifo_remove(xbt_fifo_t, void *);
+XBT_PUBLIC(int) xbt_fifo_remove_all(xbt_fifo_t, void *);
XBT_PUBLIC(void) xbt_fifo_remove_item(xbt_fifo_t, xbt_fifo_item_t);
XBT_PUBLIC(xbt_fifo_item_t) xbt_fifo_get_first_item(xbt_fifo_t l);