Function destroy_fd_instance

freebsd/net/route/fib_algo.c:824–851

* Finalises fd destruction by freeing all fd resources. */

 * Finalises fd destruction by freeing all fd resources.
 */
static void
destroy_fd_instance(struct fib_data *fd)
{

	FD_PRINTF(LOG_INFO, fd, "destroy fd %p", fd);

	/* Call destroy callback first */
	if (fd->fd_algo_data != NULL)
		fd->fd_flm->flm_destroy_cb(fd->fd_algo_data);

	/* Nhop table */
	if ((fd->nh_idx != NULL) && (fd->nh_ref_table != NULL)) {
		for (int i = 0; i < fd->number_nhops; i++) {
			if (!is_idx_free(fd, i)) {
				FD_PRINTF(LOG_DEBUG2, fd, " FREE nhop %d %p",
				    i, fd->nh_idx[i]);
				nhop_free_any(fd->nh_idx[i]);
			}
		}
		free(fd->nh_idx, M_RTABLE);
	}
	if (fd->nh_ref_table != NULL)
		free(fd->nh_ref_table, M_RTABLE);

	fib_unref_algo(fd->fd_flm);

	free(fd, M_RTABLE);
}

/*
 * Epoch callback indicating fd is safe to destroy