cmtclist.h
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:3k
- /*
- * 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 cmtclist_h___
- #define cmtclist_h___
- typedef struct CMTCListStr CMTCList;
- /*
- ** Circular linked list
- */
- struct CMTCListStr {
- CMTCList *next;
- CMTCList *prev;
- };
- /*
- ** Insert element "_e" into the list, before "_l".
- */
- #define CMT_INSERT_BEFORE(_e,_l)
- (_e)->next = (_l);
- (_e)->prev = (_l)->prev;
- (_l)->prev->next = (_e);
- (_l)->prev = (_e);
- /*
- ** Insert element "_e" into the list, after "_l".
- */
- #define CMT_INSERT_AFTER(_e,_l)
- (_e)->next = (_l)->next;
- (_e)->prev = (_l);
- (_l)->next->prev = (_e);
- (_l)->next = (_e);
- /*
- ** Append an element "_e" to the end of the list "_l"
- */
- #define CMT_APPEND_LINK(_e,_l) CMT_INSERT_BEFORE(_e,_l)
- /*
- ** Insert an element "_e" at the head of the list "_l"
- */
- #define CMT_INSERT_LINK(_e,_l) CMT_INSERT_AFTER(_e,_l)
- /* Return the head/tail of the list */
- #define CMT_LIST_HEAD(_l) (_l)->next
- #define CMT_LIST_TAIL(_l) (_l)->prev
- /*
- ** Remove the element "_e" from it's circular list.
- */
- #define CMT_REMOVE_LINK(_e)
- (_e)->prev->next = (_e)->next;
- (_e)->next->prev = (_e)->prev;
- /*
- ** Remove the element "_e" from it's circular list. Also initializes the
- ** linkage.
- */
- #define CMT_REMOVE_AND_INIT_LINK(_e)
- (_e)->prev->next = (_e)->next;
- (_e)->next->prev = (_e)->prev;
- (_e)->next = (_e);
- (_e)->prev = (_e);
- /*
- ** Return non-zero if the given circular list "_l" is empty, zero if the
- ** circular list is not empty
- */
- #define CMT_CLIST_IS_EMPTY(_l)
- ((_l)->next == (_l))
- /*
- ** Initialize a circular list
- */
- #define CMT_INIT_CLIST(_l)
- (_l)->next = (_l);
- (_l)->prev = (_l);
- #define CMT_INIT_STATIC_CLIST(_l)
- {(_l), (_l)}
- #endif /* cmtclist_h___ */