4a280a7e78
OrderedSet implements a Set-like structure, but maintains insertion ordered. It is hence to Set what OrderedHashmap is for Hashmap. Internally, this is only a wrapper around OrderedHashmap for now, but this could one day be improved and be added to hashmap.c natively.
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2015 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "hashmap.h"
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typedef struct OrderedSet OrderedSet;
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static inline OrderedSet* ordered_set_new(const struct hash_ops *ops) {
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return (OrderedSet*) ordered_hashmap_new(ops);
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}
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static inline OrderedSet* ordered_set_free(OrderedSet *s) {
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ordered_hashmap_free((OrderedHashmap*) s);
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return NULL;
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}
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static inline OrderedSet* ordered_set_free_free(OrderedSet *s) {
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ordered_hashmap_free_free((OrderedHashmap*) s);
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return NULL;
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}
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static inline int ordered_set_put(OrderedSet *s, void *p) {
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return ordered_hashmap_put((OrderedHashmap*) s, p, p);
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}
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static inline bool ordered_set_isempty(OrderedSet *s) {
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return ordered_hashmap_isempty((OrderedHashmap*) s);
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}
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static inline void *ordered_set_iterate(OrderedSet *s, Iterator *i) {
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return ordered_hashmap_iterate((OrderedHashmap*) s, i, NULL);
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}
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#define ORDERED_SET_FOREACH(e, s, i) \
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for ((i) = ITERATOR_FIRST, (e) = ordered_set_iterate((s), &(i)); (e); (e) = ordered_set_iterate((s), &(i)))
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DEFINE_TRIVIAL_CLEANUP_FUNC(OrderedSet*, ordered_set_free);
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#define _cleanup_ordered_set_free_ _cleanup_(ordered_set_freep)
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