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