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curl/lib/llist.h
2003-01-16 21:08:12 +00:00

65 lines
2.2 KiB
C

#ifndef __LLIST_H
#define __LLIST_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2003, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* $Id$
***************************************************************************/
#include "setup.h"
#include <stddef.h>
typedef void (*curl_llist_dtor)(void *, void *);
typedef struct _curl_llist_element {
void *ptr;
struct _curl_llist_element *prev;
struct _curl_llist_element *next;
} curl_llist_element;
typedef struct _curl_llist {
curl_llist_element *head;
curl_llist_element *tail;
curl_llist_dtor dtor;
size_t size;
} curl_llist;
void Curl_llist_init(curl_llist *, curl_llist_dtor);
curl_llist *Curl_llist_alloc(curl_llist_dtor);
int Curl_llist_insert_next(curl_llist *, curl_llist_element *, const void *);
int Curl_llist_insert_prev(curl_llist *, curl_llist_element *, const void *);
int Curl_llist_remove(curl_llist *, curl_llist_element *, void *);
int Curl_llist_remove_next(curl_llist *, curl_llist_element *, void *);
size_t Curl_llist_count(curl_llist *);
void Curl_llist_destroy(curl_llist *, void *);
#define CURL_LLIST_HEAD(__l) ((__l)->head)
#define CURL_LLIST_TAIL(__l) ((__l)->tail)
#define CURL_LLIST_NEXT(__e) ((__e)->next)
#define CURL_LLIST_PREV(__e) ((__e)->prev)
#define CURL_LLIST_VALP(__e) ((__e)->ptr)
#define CURL_LLIST_IS_TAIL(__e) ((__e)->next ? 0 : 1)
#define CURL_LLIST_IS_HEAD(__e) ((__e)->prev ? 0 : 1)
#endif