| Amit Pundir | 33109f7 | 2020-02-07 22:26:08 +0530 | [diff] [blame] | 1 | #ifndef _MAP_H_ |
| 2 | #define _MAP_H_ |
| 3 | |
| 4 | struct map_item { |
| 5 | unsigned int key; |
| 6 | }; |
| 7 | |
| 8 | struct map_entry; |
| 9 | |
| 10 | struct map { |
| 11 | unsigned int size; |
| 12 | unsigned int count; |
| 13 | struct map_entry *data; |
| 14 | }; |
| 15 | |
| 16 | int map_create(struct map *map); |
| 17 | void map_destroy(struct map *map); |
| 18 | void map_clear(struct map *map, void (*release)(struct map_item *)); |
| 19 | |
| 20 | int map_put(struct map *map, unsigned int key, struct map_item *v); |
| 21 | int map_reput(struct map *map, unsigned int key, struct map_item *v, |
| 22 | struct map_item **old); |
| 23 | int map_contains(const struct map *map, unsigned int key); |
| 24 | struct map_item *map_get(const struct map *map, unsigned int key); |
| 25 | int map_remove(struct map *map, unsigned int key); |
| 26 | unsigned int map_length(struct map *map); |
| 27 | |
| 28 | struct map_entry *map_iter_first(const struct map *map); |
| 29 | struct map_entry *map_iter_next(const struct map *map, struct map_entry *iter); |
| 30 | struct map_item *map_iter_item(struct map_entry *iter); |
| 31 | |
| 32 | #define map_for_each(map, iter) \ |
| 33 | for (iter = map_iter_first(map); iter; iter = map_iter_next(map, iter)) |
| 34 | |
| 35 | #define map_iter_data(iter, type, member) \ |
| 36 | container_of(map_iter_item(iter), type, member) |
| 37 | |
| 38 | #endif |