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bind9
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lwres
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list.h
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/* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ /* $Id: list.h,v 1.14 2007/06/19 23:47:23 tbox Exp $ */ #ifndef LWRES_LIST_H #define LWRES_LIST_H 1 /*! \file lwres/list.h */ #define LWRES_LIST(type) struct { type *head, *tail; } #define LWRES_LIST_INIT(list) \ do { (list).head = NULL; (list).tail = NULL; } while (0) #define LWRES_LINK(type) struct { type *prev, *next; } #define LWRES_LINK_INIT(elt, link) \ do { \ (elt)->link.prev = (void *)(-1); \ (elt)->link.next = (void *)(-1); \ } while (0) #define LWRES_LINK_LINKED(elt, link) \ ((void *)((elt)->link.prev) != (void *)(-1)) #define LWRES_LIST_HEAD(list) ((list).head) #define LWRES_LIST_TAIL(list) ((list).tail) #define LWRES_LIST_EMPTY(list) LWRES_TF((list).head == NULL) #define LWRES_LIST_PREPEND(list, elt, link) \ do { \ if ((list).head != NULL) \ (list).head->link.prev = (elt); \ else \ (list).tail = (elt); \ (elt)->link.prev = NULL; \ (elt)->link.next = (list).head; \ (list).head = (elt); \ } while (0) #define LWRES_LIST_APPEND(list, elt, link) \ do { \ if ((list).tail != NULL) \ (list).tail->link.next = (elt); \ else \ (list).head = (elt); \ (elt)->link.prev = (list).tail; \ (elt)->link.next = NULL; \ (list).tail = (elt); \ } while (0) #define LWRES_LIST_UNLINK(list, elt, link) \ do { \ if ((elt)->link.next != NULL) \ (elt)->link.next->link.prev = (elt)->link.prev; \ else \ (list).tail = (elt)->link.prev; \ if ((elt)->link.prev != NULL) \ (elt)->link.prev->link.next = (elt)->link.next; \ else \ (list).head = (elt)->link.next; \ (elt)->link.prev = (void *)(-1); \ (elt)->link.next = (void *)(-1); \ } while (0) #define LWRES_LIST_PREV(elt, link) ((elt)->link.prev) #define LWRES_LIST_NEXT(elt, link) ((elt)->link.next) #define LWRES_LIST_INSERTBEFORE(list, before, elt, link) \ do { \ if ((before)->link.prev == NULL) \ LWRES_LIST_PREPEND(list, elt, link); \ else { \ (elt)->link.prev = (before)->link.prev; \ (before)->link.prev = (elt); \ (elt)->link.prev->link.next = (elt); \ (elt)->link.next = (before); \ } \ } while (0) #define LWRES_LIST_INSERTAFTER(list, after, elt, link) \ do { \ if ((after)->link.next == NULL) \ LWRES_LIST_APPEND(list, elt, link); \ else { \ (elt)->link.next = (after)->link.next; \ (after)->link.next = (elt); \ (elt)->link.next->link.prev = (elt); \ (elt)->link.prev = (after); \ } \ } while (0) #define LWRES_LIST_APPENDLIST(list1, list2, link) \ do { \ if (LWRES_LIST_EMPTY(list1)) \ (list1) = (list2); \ else if (!LWRES_LIST_EMPTY(list2)) { \ (list1).tail->link.next = (list2).head; \ (list2).head->link.prev = (list1).tail; \ (list1).tail = (list2).tail; \ } \ (list2).head = NULL; \ (list2).tail = NULL; \ } while (0) #define LWRES_LIST_ENQUEUE(list, elt, link) LWRES_LIST_APPEND(list, elt, link) #define LWRES_LIST_DEQUEUE(list, elt, link) LWRES_LIST_UNLINK(list, elt, link) #endif /* LWRES_LIST_H */
/home/sudancam/../../usr/include/./bind9/lwres/list.h