/*
 *  list.h
 * 
 *  Copyright (c) 2002-2005 by Judd Vinet <jvinet@zeroflux.org>
 * 
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */
#ifndef _ALPM_LIST_H
#define _ALPM_LIST_H

/* Chained list struct */
typedef struct __pmlist_t {
	void *data;
	struct __pmlist_t *prev;
	struct __pmlist_t *next;
	struct __pmlist_t *last; /* Quick access to last item in list */
} pmlist_t;

typedef struct __pmlist_t PMList;

#define FREELIST(p) do { if(p) { pm_list_free(p); p = NULL; } } while(0)
#define FREELISTPTR(p) do { \
	if(p) { \
		PMList *i; \
		for(i = p; i; i = i->next) { \
			i->data = NULL; \
		} \
		pm_list_free(p); \
		p = NULL; \
	} \
} while(0)

/* Sort comparison callback function declaration */
typedef int (*pm_fn_cmp) (const void *, const void *);

PMList *pm_list_new();
void pm_list_free(PMList *list);
PMList *pm_list_add(PMList *list, void *data);
PMList *pm_list_add_sorted(PMList *list, void *data, pm_fn_cmp fn);
PMList* _alpm_list_remove(PMList* list, PMList* item);
int pm_list_count(PMList *list);
int pm_list_is_ptrin(PMList *haystack, void *needle);
PMList *pm_list_is_strin(char *needle, PMList *haystack);
PMList *pm_list_last(PMList *list);
PMList *_alpm_list_reverse(PMList *list);

#endif /* _ALPM_LIST_H */

/* vim: set ts=2 sw=2 noet: */