mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 16:46:26 +00:00
102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.1 (the "License"); you may not use this file except in
|
|
* compliance with the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the NPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef XPLIST_H
|
|
#define XPLIST_H
|
|
|
|
#include "xp_core.h"
|
|
|
|
/* generic list structure
|
|
*/
|
|
struct _XP_List {
|
|
void * object;
|
|
struct _XP_List * next;
|
|
struct _XP_List * prev;
|
|
};
|
|
|
|
XP_BEGIN_PROTOS
|
|
|
|
extern XP_List * XP_ListNew (void);
|
|
extern void XP_ListDestroy (XP_List *list);
|
|
|
|
extern void XP_ListAddObject (XP_List *list, void *newObject);
|
|
extern void XP_ListAddObjectToEnd (XP_List *list, void *newObject);
|
|
extern void XP_ListInsertObject (XP_List *list, void *insert_before, void *newObject);
|
|
extern void XP_ListInsertObjectAfter (XP_List *list, void *insert_after, void *newObject);
|
|
|
|
|
|
/* returns the list node of the specified object if it was
|
|
* in the list
|
|
*/
|
|
extern XP_List * XP_ListFindObject (XP_List *list, void * obj);
|
|
|
|
|
|
extern Bool XP_ListRemoveObject (XP_List *list, void *oldObject);
|
|
extern void * XP_ListRemoveTopObject (XP_List *list);
|
|
extern void * XP_ListPeekTopObject (XP_List *list);
|
|
extern void * XP_ListRemoveEndObject (XP_List *list);
|
|
#define XP_ListIsEmpty(list) (list ? list->next == NULL : TRUE)
|
|
extern int XP_ListCount (XP_List *list);
|
|
#define XP_ListTopObject(list) (list && list->next ? list->next->object : NULL)
|
|
|
|
extern void * XP_ListGetEndObject (XP_List *list);
|
|
extern void * XP_ListGetObjectNum (XP_List *list, int num);
|
|
extern int XP_ListGetNumFromObject (XP_List *list, void * object);
|
|
|
|
/* move the top object to the bottom of the list
|
|
* this function is useful for reordering the list
|
|
* so that a round robin ordering can occur
|
|
*/
|
|
extern void XP_ListMoveTopToBottom (XP_List *list);
|
|
|
|
|
|
XP_END_PROTOS
|
|
|
|
/* traverse the list in order
|
|
*
|
|
* make a copy of the list pointer and point it at the list object head.
|
|
* the first call the XP_ListNextObject will return the first object
|
|
* and increment the copy of the list pointer. Subsequent calls
|
|
* will continue to increment the copy of the list pointer and return
|
|
* objects
|
|
*/
|
|
#define XP_ListNextObject(list) \
|
|
(list && ((list = list->next)!=0) ? list->object : NULL)
|
|
|
|
#endif /* XPLIST_H */
|