Systemd/src/shared/set.h
Lennart Poettering dfb33a9737 macro: rework how we define cleanup macros
There's now a generic _cleanup_ macro with an argument. The macros for
specific types are now defined using this macro, and in the header files
where they belong.

All cleanup handlers are now inline functions.
2013-04-16 05:25:57 +02:00

83 lines
2.6 KiB
C

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
/* Pretty straightforward set implementation. Internally based on the
* hashmap. That means that as a minor optimization a NULL set
* object will be treated as empty set for all read
* operations. That way it is not necessary to instantiate an object
* for each set use. */
#include "hashmap.h"
typedef struct Set Set;
Set *set_new(hash_func_t hash_func, compare_func_t compare_func);
void set_free(Set* s);
static inline void set_freep(Set **s) {
set_free(*s);
}
void set_free_free(Set *s);
static inline void set_free_freep(Set **s) {
set_free_free(*s);
}
Set* set_copy(Set *s);
int set_ensure_allocated(Set **s, hash_func_t hash_func, compare_func_t compare_func);
int set_put(Set *s, void *value);
int set_replace(Set *s, void *value);
void *set_get(Set *s, void *value);
bool set_contains(Set *s, void *value);
void *set_remove(Set *s, void *value);
int set_remove_and_put(Set *s, void *old_value, void *new_value);
int set_merge(Set *s, Set *other);
void set_move(Set *s, Set *other);
int set_move_one(Set *s, Set *other, void *value);
unsigned set_size(Set *s);
bool set_isempty(Set *s);
void *set_iterate(Set *s, Iterator *i);
void *set_iterate_backwards(Set *s, Iterator *i);
void *set_iterate_skip(Set *s, void *value, Iterator *i);
void set_clear(Set *s);
void set_clear_free(Set *s);
void *set_steal_first(Set *s);
void* set_first(Set *s);
void* set_last(Set *s);
char **set_get_strv(Set *s);
#define SET_FOREACH(e, s, i) \
for ((i) = ITERATOR_FIRST, (e) = set_iterate((s), &(i)); (e); (e) = set_iterate((s), &(i)))
#define SET_FOREACH_BACKWARDS(e, s, i) \
for ((i) = ITERATOR_LAST, (e) = set_iterate_backwards((s), &(i)); (e); (e) = set_iterate_backwards((s), &(i)))
#define _cleanup_set_free_ _cleanup_(set_freep)
#define _cleanup_set_free_free_ _cleanup_(set_free_freep)