339 lines
5.7 KiB
C
339 lines
5.7 KiB
C
/*
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Based on gslist.c from glib-1.2.9 (LGPL).
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Adaption to JACK, Copyright (C) 2002 Kai Vehmanen.
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- replaced use of gtypes with normal ANSI C types
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- glib's memery allocation routines replaced with
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malloc/free calls
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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 Lesser Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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$Id: list.h,v 1.1 2005-09-13 05:22:59 drobilla Exp $
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*/
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/*
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* Nicked from jack, with:
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* s/jack_slist/lash_list/g
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* s/JSList/lash_list_t/g
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* s/malloc/lash_malloc/g
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* - Bob Ham
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*/
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#ifndef __LASH_LIST_H__
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#define __LASH_LIST_H__
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#include <stdlib.h>
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#include "common/safety.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _lash_list lash_list_t;
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typedef int (*JCompareFunc) (void* a,
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void* b);
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struct _lash_list
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{
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void *data;
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lash_list_t *next;
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};
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static __inline__
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lash_list_t*
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lash_list_alloc (void)
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{
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lash_list_t *new_list;
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new_list = (lash_list_t *) lash_malloc(1, sizeof(lash_list_t));
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new_list->data = NULL;
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new_list->next = NULL;
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return new_list;
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}
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static __inline__
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lash_list_t*
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lash_list_prepend (lash_list_t *list,
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void *data)
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{
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lash_list_t *new_list;
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new_list = (lash_list_t *) lash_malloc(1, sizeof(lash_list_t));
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new_list->data = data;
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new_list->next = list;
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return new_list;
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}
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#define lash_list_next(slist) ((slist) ? (((lash_list_t *)(slist))->next) : NULL)
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static __inline__
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lash_list_t*
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lash_list_last (lash_list_t *list)
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{
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if (list)
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{
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while (list->next)
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list = list->next;
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}
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return list;
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}
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static __inline__
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lash_list_t*
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lash_list_remove_link (lash_list_t *list,
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lash_list_t *llink)
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{
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lash_list_t *tmp;
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lash_list_t *prev;
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prev = NULL;
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tmp = list;
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while (tmp)
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{
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if (tmp == llink)
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{
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if (prev)
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prev->next = tmp->next;
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if (list == tmp)
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list = list->next;
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tmp->next = NULL;
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break;
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}
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prev = tmp;
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tmp = tmp->next;
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}
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return list;
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}
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static __inline__
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void
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lash_list_free (lash_list_t *list)
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{
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while (list)
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{
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lash_list_t *next = list->next;
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free(list);
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list = next;
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}
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}
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static __inline__
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void
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lash_list_free_1 (lash_list_t *list)
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{
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if (list)
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{
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free(list);
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}
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}
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static __inline__
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lash_list_t*
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lash_list_remove (lash_list_t *list,
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void *data)
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{
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lash_list_t *tmp;
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lash_list_t *prev;
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prev = NULL;
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tmp = list;
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while (tmp)
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{
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if (tmp->data == data)
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{
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if (prev)
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prev->next = tmp->next;
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if (list == tmp)
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list = list->next;
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tmp->next = NULL;
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lash_list_free (tmp);
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break;
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}
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prev = tmp;
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tmp = tmp->next;
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}
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return list;
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}
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static __inline__
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unsigned int
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lash_list_length (lash_list_t *list)
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{
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unsigned int length = 0;
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while (list)
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{
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length++;
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list = list->next;
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}
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return length;
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}
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static __inline__
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lash_list_t*
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lash_list_find (lash_list_t *list,
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void *data)
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{
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while (list)
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{
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if (list->data == data)
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break;
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list = list->next;
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}
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return list;
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}
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static __inline__
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lash_list_t*
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lash_list_copy (lash_list_t *list)
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{
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lash_list_t *new_list = NULL;
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if (list)
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{
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lash_list_t *last;
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new_list = lash_list_alloc ();
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new_list->data = list->data;
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last = new_list;
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list = list->next;
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while (list)
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{
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last->next = lash_list_alloc ();
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last = last->next;
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last->data = list->data;
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list = list->next;
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}
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}
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return new_list;
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}
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static __inline__
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lash_list_t*
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lash_list_append (lash_list_t *list,
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void *data)
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{
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lash_list_t *new_list;
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lash_list_t *last;
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new_list = lash_list_alloc ();
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new_list->data = data;
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if (list)
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{
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last = lash_list_last (list);
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last->next = new_list;
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return list;
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}
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else
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return new_list;
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}
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static __inline__
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lash_list_t*
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lash_list_sort_merge (lash_list_t *l1,
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lash_list_t *l2,
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JCompareFunc compare_func)
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{
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lash_list_t list, *l;
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l=&list;
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while (l1 && l2)
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{
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if (compare_func(l1->data,l2->data) < 0)
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{
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l=l->next=l1;
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l1=l1->next;
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}
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else
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{
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l=l->next=l2;
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l2=l2->next;
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}
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}
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l->next= l1 ? l1 : l2;
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return list.next;
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}
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static __inline__
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lash_list_t*
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lash_list_sort (lash_list_t *list,
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JCompareFunc compare_func)
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{
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lash_list_t *l1, *l2;
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if (!list)
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return NULL;
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if (!list->next)
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return list;
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l1 = list;
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l2 = list->next;
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while ((l2 = l2->next) != NULL)
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{
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if ((l2 = l2->next) == NULL)
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break;
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l1=l1->next;
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}
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l2 = l1->next;
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l1->next = NULL;
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return lash_list_sort_merge (lash_list_sort (list, compare_func),
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lash_list_sort (l2, compare_func),
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compare_func);
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}
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static __inline__
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lash_list_t *
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lash_list_concat (lash_list_t *list1, lash_list_t *list2)
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{
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if (list2)
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{
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if (list1)
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lash_list_last (list1)->next = list2;
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else
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list1 = list2;
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}
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return list1;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LASH_LIST_H__ */
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