Merge pull request #20303 from andir/sysconfig-example

[thirdparty/systemd.git] / src / basic / set.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include "extract-word.h"
#include "hashmap.h"
#include "macro.h"

#define set_free_and_replace(a, b)              \
        ({                                      \
                set_free(a);                    \
                (a) = (b);                      \
                (b) = NULL;                     \
                0;                              \
        })

Set* _set_new(const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS);
#define set_new(ops) _set_new(ops HASHMAP_DEBUG_SRC_ARGS)

static inline Set* set_free(Set *s) {
        return (Set*) _hashmap_free(HASHMAP_BASE(s), NULL, NULL);
}

static inline Set* set_free_free(Set *s) {
        return (Set*) _hashmap_free(HASHMAP_BASE(s), free, NULL);
}

/* no set_free_free_free */

#define set_copy(s) ((Set*) _hashmap_copy(HASHMAP_BASE(s)  HASHMAP_DEBUG_SRC_ARGS))

int _set_ensure_allocated(Set **s, const struct hash_ops *hash_ops HASHMAP_DEBUG_PARAMS);
#define set_ensure_allocated(h, ops) _set_ensure_allocated(h, ops HASHMAP_DEBUG_SRC_ARGS)

int set_put(Set *s, const void *key);
/* no set_update */
/* no set_replace */
static inline void *set_get(const Set *s, const void *key) {
        return _hashmap_get(HASHMAP_BASE((Set *) s), key);
}
/* no set_get2 */

static inline bool set_contains(const Set *s, const void *key) {
        return _hashmap_contains(HASHMAP_BASE((Set *) s), key);
}

static inline void *set_remove(Set *s, const void *key) {
        return _hashmap_remove(HASHMAP_BASE(s), key);
}

/* no set_remove2 */
/* no set_remove_value */
int set_remove_and_put(Set *s, const void *old_key, const void *new_key);
/* no set_remove_and_replace */
int set_merge(Set *s, Set *other);

static inline int set_reserve(Set *h, unsigned entries_add) {
        return _hashmap_reserve(HASHMAP_BASE(h), entries_add);
}

static inline int set_move(Set *s, Set *other) {
        return _hashmap_move(HASHMAP_BASE(s), HASHMAP_BASE(other));
}

static inline int set_move_one(Set *s, Set *other, const void *key) {
        return _hashmap_move_one(HASHMAP_BASE(s), HASHMAP_BASE(other), key);
}

static inline unsigned set_size(const Set *s) {
        return _hashmap_size(HASHMAP_BASE((Set *) s));
}

static inline bool set_isempty(const Set *s) {
        return set_size(s) == 0;
}

static inline unsigned set_buckets(const Set *s) {
        return _hashmap_buckets(HASHMAP_BASE((Set *) s));
}

static inline bool set_iterate(const Set *s, Iterator *i, void **value) {
        return _hashmap_iterate(HASHMAP_BASE((Set*) s), i, value, NULL);
}

static inline void set_clear(Set *s) {
        _hashmap_clear(HASHMAP_BASE(s), NULL, NULL);
}

static inline void set_clear_free(Set *s) {
        _hashmap_clear(HASHMAP_BASE(s), free, NULL);
}

/* no set_clear_free_free */

static inline void *set_steal_first(Set *s) {
        return _hashmap_first_key_and_value(HASHMAP_BASE(s), true, NULL);
}

#define set_clear_with_destructor(s, f)                 \
        ({                                              \
                Set *_s = (s);                          \
                void *_item;                            \
                while ((_item = set_steal_first(_s)))   \
                        f(_item);                       \
                _s;                                     \
        })
#define set_free_with_destructor(s, f)                  \
        set_free(set_clear_with_destructor(s, f))

/* no set_steal_first_key */
/* no set_first_key */

static inline void *set_first(const Set *s) {
        return _hashmap_first_key_and_value(HASHMAP_BASE((Set *) s), false, NULL);
}

/* no set_next */

static inline char **set_get_strv(Set *s) {
        return _hashmap_get_strv(HASHMAP_BASE(s));
}

int _set_ensure_put(Set **s, const struct hash_ops *hash_ops, const void *key  HASHMAP_DEBUG_PARAMS);
#define set_ensure_put(s, hash_ops, key) _set_ensure_put(s, hash_ops, key  HASHMAP_DEBUG_SRC_ARGS)

int _set_ensure_consume(Set **s, const struct hash_ops *hash_ops, void *key  HASHMAP_DEBUG_PARAMS);
#define set_ensure_consume(s, hash_ops, key) _set_ensure_consume(s, hash_ops, key  HASHMAP_DEBUG_SRC_ARGS)

int set_consume(Set *s, void *value);

int _set_put_strdup_full(Set **s, const struct hash_ops *hash_ops, const char *p  HASHMAP_DEBUG_PARAMS);
#define set_put_strdup_full(s, hash_ops, p) _set_put_strdup_full(s, hash_ops, p  HASHMAP_DEBUG_SRC_ARGS)
#define set_put_strdup(s, p) set_put_strdup_full(s, &string_hash_ops_free, p)
int _set_put_strdupv_full(Set **s, const struct hash_ops *hash_ops, char **l  HASHMAP_DEBUG_PARAMS);
#define set_put_strdupv_full(s, hash_ops, l) _set_put_strdupv_full(s, hash_ops, l  HASHMAP_DEBUG_SRC_ARGS)
#define set_put_strdupv(s, l) set_put_strdupv_full(s, &string_hash_ops_free, l)

int set_put_strsplit(Set *s, const char *v, const char *separators, ExtractFlags flags);

#define _SET_FOREACH(e, s, i) \
        for (Iterator i = ITERATOR_FIRST; set_iterate((s), &i, (void**)&(e)); )
#define SET_FOREACH(e, s) \
        _SET_FOREACH(e, s, UNIQ_T(i, UNIQ))

#define SET_FOREACH_MOVE(e, d, s)                                       \
        for (; ({ e = set_first(s); assert_se(!e || set_move_one(d, s, e) >= 0); e; }); )

DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free);
DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free_free);

#define _cleanup_set_free_ _cleanup_(set_freep)
#define _cleanup_set_free_free_ _cleanup_(set_free_freep)

int set_strjoin(Set *s, const char *separator, bool wrap_with_separator, char **ret);

bool set_equal(Set *a, Set *b);