security/nss/lib/jar/jar-ds.h
author Ehsan Akhgari <ehsan@mozilla.com>
Wed, 09 Mar 2011 10:49:15 -0500
branchGECKO20b12_2011022218_RELBRANCH
changeset 63364 864d3507de6e5a7585da08c527200c91164026b7
parent 27997 b1f84820222109855566dc9eaaa099cdc6c4d637
child 108796 699db88b5ea01fd321fe8abfe5bb071e991b120d
permissions -rw-r--r--
Backed out changeset 30a98bd29e53 because it landed on the relbranch by mistake

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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 the Initial Developer are Copyright (C) 1994-2000
 * 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 MPL, 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 MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#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_ */