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/*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Netscape security libraries.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1994-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
#ifndef __JAR_DS_h_
#define __JAR_DS_h_
/* Typedefs */
typedef struct ZZLinkStr ZZLink;
typedef struct ZZListStr ZZList;
/*
** Circular linked list. Each link contains a pointer to the object that
** is actually in the list.
*/
struct ZZLinkStr
{
ZZLink *next;
ZZLink *prev;
JAR_Item *thing;
};
struct ZZListStr
{
ZZLink link;
};
#define ZZ_InitList(lst) \
{ \
(lst)->link.next = &(lst)->link; \
(lst)->link.prev = &(lst)->link; \
(lst)->link.thing = 0; \
}
#define ZZ_ListEmpty(lst) \
((lst)->link.next == &(lst)->link)
#define ZZ_ListHead(lst) \
((lst)->link.next)
#define ZZ_ListTail(lst) \
((lst)->link.prev)
#define ZZ_ListIterDone(lst,lnk) \
((lnk) == &(lst)->link)
#define ZZ_AppendLink(lst,lnk) \
{ \
(lnk)->next = &(lst)->link; \
(lnk)->prev = (lst)->link.prev; \
(lst)->link.prev->next = (lnk); \
(lst)->link.prev = (lnk); \
}
#define ZZ_InsertLink(lst,lnk) \
{ \
(lnk)->next = (lst)->link.next; \
(lnk)->prev = &(lst)->link; \
(lst)->link.next->prev = (lnk); \
(lst)->link.next = (lnk); \
}
#define ZZ_RemoveLink(lnk) \
{ \
(lnk)->next->prev = (lnk)->prev; \
(lnk)->prev->next = (lnk)->next; \
(lnk)->next = 0; \
(lnk)->prev = 0; \
}
extern ZZLink *ZZ_NewLink (JAR_Item *thing);
extern void ZZ_DestroyLink (ZZLink *link);
extern ZZList *ZZ_NewList (void);
extern void ZZ_DestroyList (ZZList *list);
#endif /* __JAR_DS_h_ */
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