tinc/lib/list.h

80 lines
2.1 KiB
C

/*
list.h -- header file for list.c
Copyright (C) 2000-2004 Ivo Timmermans <ivo@tinc-vpn.org>
2000-2004 Guus Sliepen <guus@tinc-vpn.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., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#ifndef __TINC_LIST_H__
#define __TINC_LIST_H__
typedef struct list_node_t {
struct list_node_t *prev;
struct list_node_t *next;
/* Payload */
void *data;
} list_node_t;
typedef void (*list_action_t)(const void *);
typedef void (*list_action_node_t)(const list_node_t *);
typedef struct list_t {
list_node_t *head;
list_node_t *tail;
int count;
/* Callbacks */
list_action_t delete;
} list_t;
/* (De)constructors */
extern list_t *list_alloc(list_action_t) __attribute__ ((__malloc__));
extern void list_free(list_t *);
extern list_node_t *list_alloc_node(void);
extern void list_free_node(list_t *, list_node_t *);
/* Insertion and deletion */
extern list_node_t *list_insert_head(list_t *, void *);
extern list_node_t *list_insert_tail(list_t *, void *);
extern void list_unlink_node(list_t *, list_node_t *);
extern void list_delete_node(list_t *, list_node_t *);
extern void list_delete_head(list_t *);
extern void list_delete_tail(list_t *);
/* Head/tail lookup */
extern void *list_get_head(list_t *);
extern void *list_get_tail(list_t *);
/* Fast list deletion */
extern void list_delete_list(list_t *);
/* Traversing */
extern void list_foreach(list_t *, list_action_t);
extern void list_foreach_node(list_t *, list_action_node_t);
#endif /* __TINC_LIST_H__ */