Function remove_deleted_entries

exec/cfg.c:660–708

* Remove entries that exist in the global map, but not in the temp_map, this will * cause delete notifications to be sent to any listeners. * * NOTE: This routine depends entirely on the keys returned by the iterators * being in alpha-sorted order. */

 * being in alpha-sorted order.
 */
static void remove_deleted_entries(icmap_map_t temp_map, const char *prefix)
{
	icmap_iter_t old_iter;
	icmap_iter_t new_iter;
	const char *old_key, *new_key;
	int ret;

	old_iter = icmap_iter_init(prefix);
	new_iter = icmap_iter_init_r(temp_map, prefix);

	old_key = icmap_iter_next(old_iter, NULL, NULL);
	new_key = icmap_iter_next(new_iter, NULL, NULL);

	while (old_key || new_key) {
		ret = nullcheck_strcmp(old_key, new_key);
		if ((ret < 0 && old_key) || !new_key) {
			/*
			 * new_key is greater, a line (or more) has been deleted
			 * Continue until old is >= new
			 */
			do {
				/* Remove it from icmap & send notifications */
				icmap_delete(old_key);

				old_key = icmap_iter_next(old_iter, NULL, NULL);
				ret = nullcheck_strcmp(old_key, new_key);
			} while (ret < 0 && old_key);
		}
		else if ((ret > 0 && new_key) || !old_key) {
			/*
			 * old_key is greater, a line (or more) has been added
			 * Continue until new is >= old
			 *
			 * we don't need to do anything special with this like tell
			 * icmap. That will happen when we copy the values over
			 */
			do {
				new_key = icmap_iter_next(new_iter, NULL, NULL);
				ret = nullcheck_strcmp(old_key, new_key);
			} while (ret > 0 && new_key);
		}
		if (ret == 0) {
			new_key = icmap_iter_next(new_iter, NULL, NULL);
			old_key = icmap_iter_next(old_iter, NULL, NULL);
		}
	}
	icmap_iter_finalize(new_iter);
	icmap_iter_finalize(old_iter);
}

/*
 * Reload configuration file