| //####BSDCOPYRIGHTBEGIN#### |
| // |
| // ------------------------------------------- |
| // |
| // Portions of this software may have been derived from OpenBSD, |
| // FreeBSD or other sources, and are covered by the appropriate |
| // copyright disclaimers included herein. |
| // |
| // Portions created by Red Hat are |
| // Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. |
| // |
| // ------------------------------------------- |
| // |
| //####BSDCOPYRIGHTEND#### |
| //========================================================================== |
| |
| /* |
| * 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. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. 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 |
| * $FreeBSD: src/sys/sys/queue.h,v 1.32.2.4 2001/03/31 03:33:39 hsu Exp $ |
| */ |
| |
| #ifndef _SYS_LEONBARE_QUEUE_H_ |
| #define _SYS_LEONBARE_QUEUE_H_ |
| |
| |
| /* |
| * Tail queue definitions. |
| */ |
| #define LBTAILQ_HEAD(name, type) \ |
| struct name { \ |
| struct type *tqh_first; /* first element */ \ |
| struct type **tqh_last; /* addr of last next element */ \ |
| char *tqh_name; \ |
| } |
| |
| #define LBTAILQ_HEAD_INITIALIZER(head) \ |
| { NULL, &(head).tqh_first, 0 } |
| |
| #define LBTAILQ_ENTRY(type) \ |
| struct { \ |
| struct type *tqe_next; /* next element */ \ |
| struct type **tqe_prev; /* address of previous next element */ \ |
| } |
| |
| /* |
| * Tail queue functions. |
| */ |
| #define LBTAILQ_EMPTY(head) (LEONBARE_KERNEL_GETU32P((head)->tqh_first) == NULL) |
| |
| #define LBTAILQ_HASTWO(head, field) ((!LBTAILQ_EMPTY(head)) && LBTAILQ_NEXT(LBTAILQ_FIRST(head),field)) |
| |
| #define LBTAILQ_FOREACH(var, head, field) \ |
| for (var = LBTAILQ_FIRST(head); var; var = LBTAILQ_NEXT(var, field)) |
| |
| #define LBTAILQ_FIRST(head) LEONBARE_KERNEL_GETU32P_CAST((head)->tqh_first,__typeof((head)->tqh_first)) |
| |
| #define LBTAILQ_LAST(head, headname) \ |
| LEONBARE_KERNEL_GETU32P_BARE(LEONBARE_KERNEL_GETU32P(((struct headname *)(LEONBARE_KERNEL_GETU32P((head)->tqh_last)))->tqh_last)) |
| |
| #define LBTAILQ_NEXT(elm, field) LEONBARE_KERNEL_GETU32P_CAST((elm)->field.tqe_next,__typeof((elm)->field.tqe_next)) |
| |
| #define LBTAILQ_PREV(elm, headname, field) \ |
| LEONBARE_KERNEL_GETU32P_BARE(LEONBARE_KERNEL_GETU32P(((struct headname *)(LEONBARE_KERNEL_GETU32P((elm)->field.tqe_prev)))->tqh_last)) |
| |
| /* #define LBTAILQ_INIT(head) do { \ */ |
| /* (head)->tqh_first = NULL; \ */ |
| /* (head)->tqh_last = &(head)->tqh_first; \ */ |
| /* (head)->tqh_name = 0; \ */ |
| /* } while (0) */ |
| |
| #define LBTAILQ_INIT(head) do { \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_first,NULL); \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_last,&(head)->tqh_first); \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_name,0); \ |
| } while (0) |
| |
| /* #define LBTAILQ_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 LBTAILQ_INSERT_HEAD(head, elm, field) do { \ |
| if ((LEONBARE_KERNEL_SETU32P((elm)->field.tqe_next,LEONBARE_KERNEL_GETU32P((head)->tqh_first))) != NULL) \ |
| LEONBARE_KERNEL_SETU32P(LEONBARE_KERNEL_GETU32P_CAST((head)->tqh_first,__typeof ((head)->tqh_first))->field.tqe_prev,&(elm)->field.tqe_next); \ |
| else \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_last,&(elm)->field.tqe_next); \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_first,(elm)); \ |
| LEONBARE_KERNEL_SETU32P((elm)->field.tqe_prev,&(head)->tqh_first); \ |
| } while (0) |
| |
| #define LBTAILQ_INSERT_TAIL(head, elm, field) do { \ |
| LEONBARE_KERNEL_SETU32P((elm)->field.tqe_next,NULL); \ |
| LEONBARE_KERNEL_SETU32P((elm)->field.tqe_prev,LEONBARE_KERNEL_GETU32P((head)->tqh_last)); \ |
| LEONBARE_KERNEL_SETU32P_BARE(LEONBARE_KERNEL_GETU32P((head)->tqh_last),(elm)); \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_last,&(elm)->field.tqe_next); \ |
| } while (0) |
| |
| #define LBTAILQ_REMOVE(head, elm, field) do { \ |
| if (LEONBARE_KERNEL_GETU32P((elm)->field.tqe_next) != NULL) \ |
| LEONBARE_KERNEL_SETU32P(LEONBARE_KERNEL_GETU32P_CAST((elm)->field.tqe_next, __typeof((elm)->field.tqe_next))->field.tqe_prev, LEONBARE_KERNEL_GETU32P((elm)->field.tqe_prev)); \ |
| else \ |
| LEONBARE_KERNEL_SETU32P((head)->tqh_last, LEONBARE_KERNEL_GETU32P((elm)->field.tqe_prev)); \ |
| LEONBARE_KERNEL_SETU32P_BARE(LEONBARE_KERNEL_GETU32P((elm)->field.tqe_prev),LEONBARE_KERNEL_GETU32P((elm)->field.tqe_next)); \ |
| LEONBARE_KERNEL_SETU32P((elm)->field.tqe_next, 0); \ |
| LEONBARE_KERNEL_SETU32P((elm)->field.tqe_prev, 0); /* mark removed */ \ |
| } while (0) |
| |
| #define LBTAILQ_REMOVED(elm, field) (LEONBARE_KERNEL_GETU32P((elm)->field.tqe_next) == NULL && LEONBARE_KERNEL_GETU32P((elm)->field.tqe_prev) == NULL) |
| |
| |
| |
| #endif /* !_SYS_QUEUE_H_ */ |