src/basic/set.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "extract-word.h"
   5 #include "hashmap.h"
   6 #include "macro.h"
   7
   8 Set *internal_set_new(const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS);
   9 #define set_new(ops) internal_set_new(ops HASHMAP_DEBUG_SRC_ARGS)
  10
  11 static inline Set *set_free(Set *s) {
  12         return (Set*) internal_hashmap_free(HASHMAP_BASE(s), NULL, NULL);
  13 }
  14
  15 static inline Set *set_free_free(Set *s) {
  16         return (Set*) internal_hashmap_free(HASHMAP_BASE(s), free, NULL);
  17 }
  18
  19 /* no set_free_free_free */
  20
  21 static inline Set *set_copy(Set *s) {
  22         return (Set*) internal_hashmap_copy(HASHMAP_BASE(s));
  23 }
  24
  25 int internal_set_ensure_allocated(Set **s, const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS);
  26 #define set_ensure_allocated(h, ops) internal_set_ensure_allocated(h, ops HASHMAP_DEBUG_SRC_ARGS)
  27
  28 int set_put(Set *s, const void *key);
  29 /* no set_update */
  30 /* no set_replace */
  31 static inline void *set_get(Set *s, void *key) {
  32         return internal_hashmap_get(HASHMAP_BASE(s), key);
  33 }
  34 /* no set_get2 */
  35
  36 static inline bool set_contains(Set *s, const void *key) {
  37         return internal_hashmap_contains(HASHMAP_BASE(s), key);
  38 }
  39
  40 static inline void *set_remove(Set *s, const void *key) {
  41         return internal_hashmap_remove(HASHMAP_BASE(s), key);
  42 }
  43
  44 /* no set_remove2 */
  45 /* no set_remove_value */
  46 int set_remove_and_put(Set *s, const void *old_key, const void *new_key);
  47 /* no set_remove_and_replace */
  48 int set_merge(Set *s, Set *other);
  49
  50 static inline int set_reserve(Set *h, unsigned entries_add) {
  51         return internal_hashmap_reserve(HASHMAP_BASE(h), entries_add);
  52 }
  53
  54 static inline int set_move(Set *s, Set *other) {
  55         return internal_hashmap_move(HASHMAP_BASE(s), HASHMAP_BASE(other));
  56 }
  57
  58 static inline int set_move_one(Set *s, Set *other, const void *key) {
  59         return internal_hashmap_move_one(HASHMAP_BASE(s), HASHMAP_BASE(other), key);
  60 }
  61
  62 static inline unsigned set_size(Set *s) {
  63         return internal_hashmap_size(HASHMAP_BASE(s));
  64 }
  65
  66 static inline bool set_isempty(Set *s) {
  67         return set_size(s) == 0;
  68 }
  69
  70 static inline unsigned set_buckets(Set *s) {
  71         return internal_hashmap_buckets(HASHMAP_BASE(s));
  72 }
  73
  74 bool set_iterate(Set *s, Iterator *i, void **value);
  75
  76 static inline void set_clear(Set *s) {
  77         internal_hashmap_clear(HASHMAP_BASE(s), NULL, NULL);
  78 }
  79
  80 static inline void set_clear_free(Set *s) {
  81         internal_hashmap_clear(HASHMAP_BASE(s), free, NULL);
  82 }
  83
  84 /* no set_clear_free_free */
  85
  86 static inline void *set_steal_first(Set *s) {
  87         return internal_hashmap_first_key_and_value(HASHMAP_BASE(s), true, NULL);
  88 }
  89
  90 #define set_clear_with_destructor(_s, _f)               \
  91         ({                                              \
  92                 void *_item;                            \
  93                 while ((_item = set_steal_first(_s)))   \
  94                         _f(_item);                      \
  95         })
  96 #define set_free_with_destructor(_s, _f)                \
  97         ({                                              \
  98                 set_clear_with_destructor(_s, _f);      \
  99                 set_free(_s);                           \
 100         })
 101
 102 /* no set_steal_first_key */
 103 /* no set_first_key */
 104
 105 static inline void *set_first(Set *s) {
 106         return internal_hashmap_first_key_and_value(HASHMAP_BASE(s), false, NULL);
 107 }
 108
 109 /* no set_next */
 110
 111 static inline char **set_get_strv(Set *s) {
 112         return internal_hashmap_get_strv(HASHMAP_BASE(s));
 113 }
 114
 115 int set_consume(Set *s, void *value);
 116 int set_put_strdup(Set *s, const char *p);
 117 int set_put_strdupv(Set *s, char **l);
 118 int set_put_strsplit(Set *s, const char *v, const char *separators, ExtractFlags flags);
 119
 120 #define SET_FOREACH(e, s, i) \
 121         for ((i) = ITERATOR_FIRST; set_iterate((s), &(i), (void**)&(e)); )
 122
 123 #define SET_FOREACH_MOVE(e, d, s)                                       \
 124         for (; ({ e = set_first(s); assert_se(!e || set_move_one(d, s, e) >= 0); e; }); )
 125
 126 DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free);
 127 DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free_free);
 128
 129 #define _cleanup_set_free_ _cleanup_(set_freep)
 130 #define _cleanup_set_free_free_ _cleanup_(set_free_freep)