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66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
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#ifndef foosethfoo
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#define foosethfoo
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/***
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This file is part of systemd.
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Copyright 2010 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 General Public License as published by
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the Free Software Foundation; either version 2 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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General Public License for more details.
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You should have received a copy of the GNU 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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/* Pretty straightforward set implementation. Internally based on the
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* hashmap. That means that as a minor optimization a NULL set
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* object will be treated as empty set for all read
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* operations. That way it is not necessary to instantiate an object
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* for each set use. */
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#include "hashmap.h"
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typedef struct Set Set;
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Set *set_new(hash_func_t hash_func, compare_func_t compare_func);
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void set_free(Set* s);
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Set* set_copy(Set *s);
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int set_ensure_allocated(Set **s, hash_func_t hash_func, compare_func_t compare_func);
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int set_put(Set *s, void *value);
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int set_replace(Set *s, void *value);
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void *set_get(Set *s, void *value);
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void *set_remove(Set *s, void *value);
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int set_merge(Set *s, Set *other);
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unsigned set_size(Set *s);
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bool set_isempty(Set *s);
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void *set_iterate(Set *s, Iterator *i);
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void *set_iterate_backwards(Set *s, Iterator *i);
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void *set_iterate_skip(Set *s, void *value, Iterator *i);
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void set_clear(Set *s);
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void *set_steal_first(Set *s);
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void* set_first(Set *s);
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void* set_last(Set *s);
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#define SET_FOREACH(e, s, i) \
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for ((i) = ITERATOR_FIRST, (e) = set_iterate((s), &(i)); (e); (e) = set_iterate((s), &(i)))
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#define SET_FOREACH_BACKWARDS(e, s, i) \
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for ((i) = ITERATOR_LAST, (e) = set_iterate_backwards((s), &(i)); (e); (e) = set_iterate_backwards((s), &(i)))
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#endif
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