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https://github.com/moparisthebest/pacman
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2a457c5319
_alpm_db_load_pkgcache: use mergesort to improve performance
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/*
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* list.h
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*
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* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it 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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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#ifndef _ALPM_LIST_H
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#define _ALPM_LIST_H
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#include "alpm.h"
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/* Chained list struct */
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struct __pmlist_t {
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void *data;
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struct __pmlist_t *prev;
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struct __pmlist_t *next;
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struct __pmlist_t *last; /* Quick access to last item in list */
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};
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#define _FREELIST(p, f) do { if(p) { _alpm_list_free(p, f); p = NULL; } } while(0)
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#define FREELIST(p) _FREELIST(p, free)
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#define FREELISTPTR(p) _FREELIST(p, NULL)
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typedef void (*_alpm_fn_free)(void *);
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/* Sort comparison callback function declaration */
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typedef int (*_alpm_fn_cmp)(const void *, const void *);
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pmlist_t *_alpm_list_new(void);
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void _alpm_list_free(pmlist_t *list, _alpm_fn_free fn);
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pmlist_t *_alpm_list_add(pmlist_t *list, void *data);
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pmlist_t *_alpm_list_add_sorted(pmlist_t *list, void *data, _alpm_fn_cmp fn);
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pmlist_t* _alpm_list_mmerge(pmlist_t *left, pmlist_t *right, _alpm_fn_cmp fn);
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pmlist_t* _alpm_list_msort(pmlist_t *list, int len, _alpm_fn_cmp fn);
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pmlist_t* _alpm_list_nth(pmlist_t *list, int n);
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pmlist_t *_alpm_list_remove(pmlist_t *haystack, void *needle, _alpm_fn_cmp fn, void **data);
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int _alpm_list_count(const pmlist_t *list);
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int _alpm_list_is_in(void *needle, pmlist_t *haystack);
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int _alpm_list_is_strin(char *needle, pmlist_t *haystack);
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pmlist_t *_alpm_list_last(pmlist_t *list);
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pmlist_t *_alpm_list_remove_dupes(pmlist_t *list);
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pmlist_t *_alpm_list_reverse(pmlist_t *list);
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pmlist_t *_alpm_list_strdup(pmlist_t *list);
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#endif /* _ALPM_LIST_H */
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/* vim: set ts=2 sw=2 noet: */
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