diff options
Diffstat (limited to 'package/ubsec_ssb/src/bsdqueue.h')
| -rw-r--r-- | package/ubsec_ssb/src/bsdqueue.h | 527 |
1 files changed, 0 insertions, 527 deletions
diff --git a/package/ubsec_ssb/src/bsdqueue.h b/package/ubsec_ssb/src/bsdqueue.h deleted file mode 100644 index 6010552..0000000 --- a/package/ubsec_ssb/src/bsdqueue.h +++ /dev/null @@ -1,527 +0,0 @@ -/* $OpenBSD: queue.h,v 1.32 2007/04/30 18:42:34 pedro Exp $ */ -/* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */ - -/* - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)queue.h 8.5 (Berkeley) 8/20/94 - */ - -#ifndef _BSD_SYS_QUEUE_H_ -#define _BSD_SYS_QUEUE_H_ - -/* - * This file defines five types of data structures: singly-linked lists, - * lists, simple queues, tail queues, and circular queues. - * - * - * A singly-linked list is headed by a single forward pointer. The elements - * are singly linked for minimum space and pointer manipulation overhead at - * the expense of O(n) removal for arbitrary elements. New elements can be - * added to the list after an existing element or at the head of the list. - * Elements being removed from the head of the list should use the explicit - * macro for this purpose for optimum efficiency. A singly-linked list may - * only be traversed in the forward direction. Singly-linked lists are ideal - * for applications with large datasets and few or no removals or for - * implementing a LIFO queue. - * - * A list is headed by a single forward pointer (or an array of forward - * pointers for a hash table header). The elements are doubly linked - * so that an arbitrary element can be removed without a need to - * traverse the list. New elements can be added to the list before - * or after an existing element or at the head of the list. A list - * may only be traversed in the forward direction. - * - * A simple queue is headed by a pair of pointers, one the head of the - * list and the other to the tail of the list. The elements are singly - * linked to save space, so elements can only be removed from the - * head of the list. New elements can be added to the list before or after - * an existing element, at the head of the list, or at the end of the - * list. A simple queue may only be traversed in the forward direction. - * - * A tail queue is headed by a pair of pointers, one to the head of the - * list and the other to the tail of the list. The elements are doubly - * linked so that an arbitrary element can be removed without a need to - * traverse the list. New elements can be added to the list before or - * after an existing element, at the head of the list, or at the end of - * the list. A tail queue may be traversed in either direction. - * - * A circle queue is headed by a pair of pointers, one to the head of the - * list and the other to the tail of the list. The elements are doubly - * linked so that an arbitrary element can be removed without a need to - * traverse the list. New elements can be added to the list before or after - * an existing element, at the head of the list, or at the end of the list. - * A circle queue may be traversed in either direction, but has a more - * complex end of list detection. - * - * For details on the use of these macros, see the queue(3) manual page. - */ - -#if defined(QUEUE_MACRO_DEBUG) || (defined(_KERNEL) && defined(DIAGNOSTIC)) -#define _Q_INVALIDATE(a) (a) = ((void *)-1) -#else -#define _Q_INVALIDATE(a) -#endif - -/* - * Singly-linked List definitions. - */ -#define BSD_SLIST_HEAD(name, type) \ -struct name { \ - struct type *slh_first; /* first element */ \ -} - -#define BSD_SLIST_HEAD_INITIALIZER(head) \ - { NULL } - -#define BSD_SLIST_ENTRY(type) \ -struct { \ - struct type *sle_next; /* next element */ \ -} - -/* - * Singly-linked List access methods. - */ -#define BSD_SLIST_FIRST(head) ((head)->slh_first) -#define BSD_SLIST_END(head) NULL -#define BSD_SLIST_EMPTY(head) (BSD_SLIST_FIRST(head) == BSD_SLIST_END(head)) -#define BSD_SLIST_NEXT(elm, field) ((elm)->field.sle_next) - -#define BSD_SLIST_FOREACH(var, head, field) \ - for((var) = BSD_SLIST_FIRST(head); \ - (var) != BSD_SLIST_END(head); \ - (var) = BSD_SLIST_NEXT(var, field)) - -#define BSD_SLIST_FOREACH_PREVPTR(var, varp, head, field) \ - for ((varp) = &BSD_SLIST_FIRST((head)); \ - ((var) = *(varp)) != BSD_SLIST_END(head); \ - (varp) = &BSD_SLIST_NEXT((var), field)) - -/* - * Singly-linked List functions. - */ -#define BSD_SLIST_INIT(head) { \ - BSD_SLIST_FIRST(head) = BSD_SLIST_END(head); \ -} - -#define BSD_SLIST_INSERT_AFTER(slistelm, elm, field) do { \ - (elm)->field.sle_next = (slistelm)->field.sle_next; \ - (slistelm)->field.sle_next = (elm); \ -} while (0) - -#define BSD_SLIST_INSERT_HEAD(head, elm, field) do { \ - (elm)->field.sle_next = (head)->slh_first; \ - (head)->slh_first = (elm); \ -} while (0) - -#define BSD_SLIST_REMOVE_NEXT(head, elm, field) do { \ - (elm)->field.sle_next = (elm)->field.sle_next->field.sle_next; \ -} while (0) - -#define BSD_SLIST_REMOVE_HEAD(head, field) do { \ - (head)->slh_first = (head)->slh_first->field.sle_next; \ -} while (0) - -#define BSD_SLIST_REMOVE(head, elm, type, field) do { \ - if ((head)->slh_first == (elm)) { \ - BSD_SLIST_REMOVE_HEAD((head), field); \ - } else { \ - struct type *curelm = (head)->slh_first; \ - \ - while (curelm->field.sle_next != (elm)) \ - curelm = curelm->field.sle_next; \ - curelm->field.sle_next = \ - curelm->field.sle_next->field.sle_next; \ - _Q_INVALIDATE((elm)->field.sle_next); \ - } \ -} while (0) - -/* - * List definitions. - */ -#define BSD_LIST_HEAD(name, type) \ -struct name { \ - struct type *lh_first; /* first element */ \ -} - -#define BSD_LIST_HEAD_INITIALIZER(head) \ - { NULL } - -#define BSD_LIST_ENTRY(type) \ -struct { \ - struct type *le_next; /* next element */ \ - struct type **le_prev; /* address of previous next element */ \ -} - -/* - * List access methods - */ -#define BSD_LIST_FIRST(head) ((head)->lh_first) -#define BSD_LIST_END(head) NULL -#define BSD_LIST_EMPTY(head) (BSD_LIST_FIRST(head) == BSD_LIST_END(head)) -#define BSD_LIST_NEXT(elm, field) ((elm)->field.le_next) - -#define BSD_LIST_FOREACH(var, head, field) \ - for((var) = BSD_LIST_FIRST(head); \ - (var)!= BSD_LIST_END(head); \ - (var) = BSD_LIST_NEXT(var, field)) - -/* - * List functions. - */ -#define BSD_LIST_INIT(head) do { \ - BSD_LIST_FIRST(head) = BSD_LIST_END(head); \ -} while (0) - -#define BSD_LIST_INSERT_AFTER(listelm, elm, field) do { \ - if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \ - (listelm)->field.le_next->field.le_prev = \ - &(elm)->field.le_next; \ - (listelm)->field.le_next = (elm); \ - (elm)->field.le_prev = &(listelm)->field.le_next; \ -} while (0) - -#define BSD_LIST_INSERT_BEFORE(listelm, elm, field) do { \ - (elm)->field.le_prev = (listelm)->field.le_prev; \ - (elm)->field.le_next = (listelm); \ - *(listelm)->field.le_prev = (elm); \ - (listelm)->field.le_prev = &(elm)->field.le_next; \ -} while (0) - -#define BSD_LIST_INSERT_HEAD(head, elm, field) do { \ - if (((elm)->field.le_next = (head)->lh_first) != NULL) \ - (head)->lh_first->field.le_prev = &(elm)->field.le_next;\ - (head)->lh_first = (elm); \ - (elm)->field.le_prev = &(head)->lh_first; \ -} while (0) - -#define BSD_LIST_REMOVE(elm, field) do { \ - if ((elm)->field.le_next != NULL) \ - (elm)->field.le_next->field.le_prev = \ - (elm)->field.le_prev; \ - *(elm)->field.le_prev = (elm)->field.le_next; \ - _Q_INVALIDATE((elm)->field.le_prev); \ - _Q_INVALIDATE((elm)->field.le_next); \ -} while (0) - -#define BSD_LIST_REPLACE(elm, elm2, field) do { \ - if (((elm2)->field.le_next = (elm)->field.le_next) != NULL) \ - (elm2)->field.le_next->field.le_prev = \ - &(elm2)->field.le_next; \ - (elm2)->field.le_prev = (elm)->field.le_prev; \ - *(elm2)->field.le_prev = (elm2); \ - _Q_INVALIDATE((elm)->field.le_prev); \ - _Q_INVALIDATE((elm)->field.le_next); \ -} while (0) - -/* - * Simple queue definitions. - */ -#define BSD_SIMPLEQ_HEAD(name, type) \ -struct name { \ - struct type *sqh_first; /* first element */ \ - struct type **sqh_last; /* addr of last next element */ \ -} - -#define BSD_SIMPLEQ_HEAD_INITIALIZER(head) \ - { NULL, &(head).sqh_first } - -#define BSD_SIMPLEQ_ENTRY(type) \ -struct { \ - struct type *sqe_next; /* next element */ \ -} - -/* - * Simple queue access methods. - */ -#define BSD_SIMPLEQ_FIRST(head) ((head)->sqh_first) -#define BSD_SIMPLEQ_END(head) NULL -#define BSD_SIMPLEQ_EMPTY(head) (BSD_SIMPLEQ_FIRST(head) == BSD_SIMPLEQ_END(head)) -#define BSD_SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next) - -#define BSD_SIMPLEQ_FOREACH(var, head, field) \ - for((var) = BSD_SIMPLEQ_FIRST(head); \ - (var) != BSD_SIMPLEQ_END(head); \ - (var) = BSD_SIMPLEQ_NEXT(var, field)) - -/* - * Simple queue functions. - */ -#define BSD_SIMPLEQ_INIT(head) do { \ - (head)->sqh_first = NULL; \ - (head)->sqh_last = &(head)->sqh_first; \ -} while (0) - -#define BSD_SIMPLEQ_INSERT_HEAD(head, elm, field) do { \ - if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \ - (head)->sqh_last = &(elm)->field.sqe_next; \ - (head)->sqh_first = (elm); \ -} while (0) - -#define BSD_SIMPLEQ_INSERT_TAIL(head, elm, field) do { \ - (elm)->field.sqe_next = NULL; \ - *(head)->sqh_last = (elm); \ - (head)->sqh_last = &(elm)->field.sqe_next; \ -} while (0) - -#define BSD_SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \ - if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\ - (head)->sqh_last = &(elm)->field.sqe_next; \ - (listelm)->field.sqe_next = (elm); \ -} while (0) - -#define BSD_SIMPLEQ_REMOVE_HEAD(head, field) do { \ - if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \ - (head)->sqh_last = &(head)->sqh_first; \ -} while (0) - -/* - * Tail queue definitions. - */ -#define BSD_TAILQ_HEAD(name, type) \ -struct name { \ - struct type *tqh_first; /* first element */ \ - struct type **tqh_last; /* addr of last next element */ \ -} - -#define BSD_TAILQ_HEAD_INITIALIZER(head) \ - { NULL, &(head).tqh_first } - -#define BSD_TAILQ_ENTRY(type) \ -struct { \ - struct type *tqe_next; /* next element */ \ - struct type **tqe_prev; /* address of previous next element */ \ -} - -/* - * tail queue access methods - */ -#define BSD_TAILQ_FIRST(head) ((head)->tqh_first) -#define BSD_TAILQ_END(head) NULL -#define BSD_TAILQ_NEXT(elm, field) ((elm)->field.tqe_next) -#define BSD_TAILQ_LAST(head, headname) \ - (*(((struct headname *)((head)->tqh_last))->tqh_last)) -/* XXX */ -#define BSD_TAILQ_PREV(elm, headname, field) \ - (*(((struct headname *)((elm)->field.tqe_prev))->tqh_last)) -#define BSD_TAILQ_EMPTY(head) \ - (BSD_TAILQ_FIRST(head) == BSD_TAILQ_END(head)) - -#define BSD_TAILQ_FOREACH(var, head, field) \ - for((var) = BSD_TAILQ_FIRST(head); \ - (var) != BSD_TAILQ_END(head); \ - (var) = BSD_TAILQ_NEXT(var, field)) - -#define BSD_TAILQ_FOREACH_REVERSE(var, head, headname, field) \ - for((var) = BSD_TAILQ_LAST(head, headname); \ - (var) != BSD_TAILQ_END(head); \ - (var) = BSD_TAILQ_PREV(var, headname, field)) - -/* - * Tail queue functions. - */ -#define BSD_TAILQ_INIT(head) do { \ - (head)->tqh_first = NULL; \ - (head)->tqh_last = &(head)->tqh_first; \ -} while (0) - -#define BSD_TAILQ_INSERT_HEAD(head, elm, field) do { \ - if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \ - (head)->tqh_first->field.tqe_prev = \ - &(elm)->field.tqe_next; \ - else \ - (head)->tqh_last = &(elm)->field.tqe_next; \ - (head)->tqh_first = (elm); \ - (elm)->field.tqe_prev = &(head)->tqh_first; \ -} while (0) - -#define BSD_TAILQ_INSERT_TAIL(head, elm, field) do { \ - (elm)->field.tqe_next = NULL; \ - (elm)->field.tqe_prev = (head)->tqh_last; \ - *(head)->tqh_last = (elm); \ - (head)->tqh_last = &(elm)->field.tqe_next; \ -} while (0) - -#define BSD_TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \ - if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\ - (elm)->field.tqe_next->field.tqe_prev = \ - &(elm)->field.tqe_next; \ - else \ - (head)->tqh_last = &(elm)->field.tqe_next; \ - (listelm)->field.tqe_next = (elm); \ - (elm)->field.tqe_prev = &(listelm)->field.tqe_next; \ -} while (0) - -#define BSD_TAILQ_INSERT_BEFORE(listelm, elm, field) do { \ - (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \ - (elm)->field.tqe_next = (listelm); \ - *(listelm)->field.tqe_prev = (elm); \ - (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \ -} while (0) - -#define BSD_TAILQ_REMOVE(head, elm, field) do { \ - if (((elm)->field.tqe_next) != NULL) \ - (elm)->field.tqe_next->field.tqe_prev = \ - (elm)->field.tqe_prev; \ - else \ - (head)->tqh_last = (elm)->field.tqe_prev; \ - *(elm)->field.tqe_prev = (elm)->field.tqe_next; \ - _Q_INVALIDATE((elm)->field.tqe_prev); \ - _Q_INVALIDATE((elm)->field.tqe_next); \ -} while (0) - -#define BSD_TAILQ_REPLACE(head, elm, elm2, field) do { \ - if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \ - (elm2)->field.tqe_next->field.tqe_prev = \ - &(elm2)->field.tqe_next; \ - else \ - (head)->tqh_last = &(elm2)->field.tqe_next; \ - (elm2)->field.tqe_prev = (elm)->field.tqe_prev; \ - *(elm2)->field.tqe_prev = (elm2); \ - _Q_INVALIDATE((elm)->field.tqe_prev); \ - _Q_INVALIDATE((elm)->field.tqe_next); \ -} while (0) - -/* - * Circular queue definitions. - */ -#define BSD_CIRCLEQ_HEAD(name, type) \ -struct name { \ - struct type *cqh_first; /* first element */ \ - struct type *cqh_last; /* last element */ \ -} - -#define BSD_CIRCLEQ_HEAD_INITIALIZER(head) \ - { BSD_CIRCLEQ_END(&head), BSD_CIRCLEQ_END(&head) } - -#define BSD_CIRCLEQ_ENTRY(type) \ -struct { \ - struct type *cqe_next; /* next element */ \ - struct type *cqe_prev; /* previous element */ \ -} - -/* - * Circular queue access methods - */ -#define BSD_CIRCLEQ_FIRST(head) ((head)->cqh_first) -#define BSD_CIRCLEQ_LAST(head) ((head)->cqh_last) -#define BSD_CIRCLEQ_END(head) ((void *)(head)) -#define BSD_CIRCLEQ_NEXT(elm, field) ((elm)->field.cqe_next) -#define BSD_CIRCLEQ_PREV(elm, field) ((elm)->field.cqe_prev) -#define BSD_CIRCLEQ_EMPTY(head) \ - (BSD_CIRCLEQ_FIRST(head) == BSD_CIRCLEQ_END(head)) - -#define BSD_CIRCLEQ_FOREACH(var, head, field) \ - for((var) = BSD_CIRCLEQ_FIRST(head); \ - (var) != BSD_CIRCLEQ_END(head); \ - (var) = BSD_CIRCLEQ_NEXT(var, field)) - -#define BSD_CIRCLEQ_FOREACH_REVERSE(var, head, field) \ - for((var) = BSD_CIRCLEQ_LAST(head); \ - (var) != BSD_CIRCLEQ_END(head); \ - (var) = BSD_CIRCLEQ_PREV(var, field)) - -/* - * Circular queue functions. - */ -#define BSD_CIRCLEQ_INIT(head) do { \ - (head)->cqh_first = BSD_CIRCLEQ_END(head); \ - (head)->cqh_last = BSD_CIRCLEQ_END(head); \ -} while (0) - -#define BSD_CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \ - (elm)->field.cqe_next = (listelm)->field.cqe_next; \ - (elm)->field.cqe_prev = (listelm); \ - if ((listelm)->field.cqe_next == BSD_CIRCLEQ_END(head)) \ - (head)->cqh_last = (elm); \ - else \ - (listelm)->field.cqe_next->field.cqe_prev = (elm); \ - (listelm)->field.cqe_next = (elm); \ -} while (0) - -#define BSD_CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \ - (elm)->field.cqe_next = (listelm); \ - (elm)->field.cqe_prev = (listelm)->field.cqe_prev; \ - if ((listelm)->field.cqe_prev == BSD_CIRCLEQ_END(head)) \ - (head)->cqh_first = (elm); \ - else \ - (listelm)->field.cqe_prev->field.cqe_next = (elm); \ - (listelm)->field.cqe_prev = (elm); \ -} while (0) - -#define BSD_CIRCLEQ_INSERT_HEAD(head, elm, field) do { \ - (elm)->field.cqe_next = (head)->cqh_first; \ - (elm)->field.cqe_prev = BSD_CIRCLEQ_END(head); \ - if ((head)->cqh_last == BSD_CIRCLEQ_END(head)) \ - (head)->cqh_last = (elm); \ - else \ - (head)->cqh_first->field.cqe_prev = (elm); \ - (head)->cqh_first = (elm); \ -} while (0) - -#define BSD_CIRCLEQ_INSERT_TAIL(head, elm, field) do { \ - (elm)->field.cqe_next = BSD_CIRCLEQ_END(head); \ - (elm)->field.cqe_prev = (head)->cqh_last; \ - if ((head)->cqh_first == BSD_CIRCLEQ_END(head)) \ - (head)->cqh_first = (elm); \ - else \ - (head)->cqh_last->field.cqe_next = (elm); \ - (head)->cqh_last = (elm); \ -} while (0) - -#define BSD_CIRCLEQ_REMOVE(head, elm, field) do { \ - if ((elm)->field.cqe_next == BSD_CIRCLEQ_END(head)) \ - (head)->cqh_last = (elm)->field.cqe_prev; \ - else \ - (elm)->field.cqe_next->field.cqe_prev = \ - (elm)->field.cqe_prev; \ - if ((elm)->field.cqe_prev == BSD_CIRCLEQ_END(head)) \ - (head)->cqh_first = (elm)->field.cqe_next; \ - else \ - (elm)->field.cqe_prev->field.cqe_next = \ - (elm)->field.cqe_next; \ - _Q_INVALIDATE((elm)->field.cqe_prev); \ - _Q_INVALIDATE((elm)->field.cqe_next); \ -} while (0) - -#define BSD_CIRCLEQ_REPLACE(head, elm, elm2, field) do { \ - if (((elm2)->field.cqe_next = (elm)->field.cqe_next) == \ - BSD_CIRCLEQ_END(head)) \ - (head).cqh_last = (elm2); \ - else \ - (elm2)->field.cqe_next->field.cqe_prev = (elm2); \ - if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) == \ - BSD_CIRCLEQ_END(head)) \ - (head).cqh_first = (elm2); \ - else \ - (elm2)->field.cqe_prev->field.cqe_next = (elm2); \ - _Q_INVALIDATE((elm)->field.cqe_prev); \ - _Q_INVALIDATE((elm)->field.cqe_next); \ -} while (0) - -#endif /* !_BSD_SYS_QUEUE_H_ */ |