-extern void progress_callback (guestfs_h *g, void *data, int proc_nr, int serial, uint64_t position, uint64_t total);
+extern void progress_callback (guestfs_h *g, void *data, uint64_t event, int event_handle, int flags, const char *buf, size_t buf_len, const uint64_t *array, size_t array_len);