/*** This file is part of systemd Copyright 2013 Jan Janssen systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include "list.h" #include "util.h" int main(int argc, const char *argv[]) { size_t i; typedef struct list_item { LIST_FIELDS(struct list_item, item); } list_item; LIST_HEAD(list_item, head); list_item items[4]; list_item *cursor; LIST_HEAD_INIT(head); assert_se(head == NULL); for (i = 0; i < ELEMENTSOF(items); i++) { LIST_INIT(item, &items[i]); assert_se(LIST_JUST_US(item, &items[i])); LIST_PREPEND(item, head, &items[i]); } assert_se(!LIST_JUST_US(item, head)); assert_se(items[0].item_next == NULL); assert_se(items[1].item_next == &items[0]); assert_se(items[2].item_next == &items[1]); assert_se(items[3].item_next == &items[2]); assert_se(items[0].item_prev == &items[1]); assert_se(items[1].item_prev == &items[2]); assert_se(items[2].item_prev == &items[3]); assert_se(items[3].item_prev == NULL); LIST_FIND_HEAD(item, &items[0], cursor); assert_se(cursor == &items[3]); LIST_FIND_TAIL(item, &items[3], cursor); assert_se(cursor == &items[0]); LIST_REMOVE(item, head, &items[1]); assert_se(LIST_JUST_US(item, &items[1])); assert_se(items[0].item_next == NULL); assert_se(items[2].item_next == &items[0]); assert_se(items[3].item_next == &items[2]); assert_se(items[0].item_prev == &items[2]); assert_se(items[2].item_prev == &items[3]); assert_se(items[3].item_prev == NULL); LIST_INSERT_AFTER(item, head, &items[3], &items[1]); assert_se(items[0].item_next == NULL); assert_se(items[2].item_next == &items[0]); assert_se(items[1].item_next == &items[2]); assert_se(items[3].item_next == &items[1]); assert_se(items[0].item_prev == &items[2]); assert_se(items[2].item_prev == &items[1]); assert_se(items[1].item_prev == &items[3]); assert_se(items[3].item_prev == NULL); LIST_REMOVE(item, head, &items[0]); assert_se(LIST_JUST_US(item, &items[0])); assert_se(items[2].item_next == NULL); assert_se(items[1].item_next == &items[2]); assert_se(items[3].item_next == &items[1]); assert_se(items[2].item_prev == &items[1]); assert_se(items[1].item_prev == &items[3]); assert_se(items[3].item_prev == NULL); LIST_REMOVE(item, head, &items[1]); assert_se(LIST_JUST_US(item, &items[1])); assert_se(items[2].item_next == NULL); assert_se(items[3].item_next == &items[2]); assert_se(items[2].item_prev == &items[3]); assert_se(items[3].item_prev == NULL); LIST_REMOVE(item, head, &items[2]); assert_se(LIST_JUST_US(item, &items[2])); assert_se(LIST_JUST_US(item, head)); LIST_REMOVE(item, head, &items[3]); assert_se(LIST_JUST_US(item, &items[3])); return 0; }