projects/pwm: compat/queue.h annotate

annotate compat/queue.h @ 26:5bdea77d0c1d

Add pwm-clip utility for setting the X11 CLIPBOARD selection

author	Guido Berhoerster <guido+pwm@berhoerster.name>
date	Thu, 21 Sep 2017 09:45:59 +0200
parents	a08ef0674d8e
children

rev	line source
17 a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	1 /* $OpenBSD: queue.h,v 1.44 2016/09/09 20:31:46 millert Exp $ */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	2 /* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	3
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	4 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	5 * Copyright (c) 1991, 1993
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	6 * The Regents of the University of California. All rights reserved.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	7 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	8 * Redistribution and use in source and binary forms, with or without
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	9 * modification, are permitted provided that the following conditions
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	10 * are met:
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	11 * 1. Redistributions of source code must retain the above copyright
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	12 * notice, this list of conditions and the following disclaimer.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	13 * 2. Redistributions in binary form must reproduce the above copyright
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	14 * notice, this list of conditions and the following disclaimer in the
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	15 * documentation and/or other materials provided with the distribution.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	16 * 3. Neither the name of the University nor the names of its contributors
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	17 * may be used to endorse or promote products derived from this software
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	18 * without specific prior written permission.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	19 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	30 * SUCH DAMAGE.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	31 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	32 * @(#)queue.h 8.5 (Berkeley) 8/20/94
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	33 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	34
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	35 #ifndef _SYS_QUEUE_H_
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	36 #define _SYS_QUEUE_H_
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	37
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	38 #include <stddef.h>
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	39
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	40 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	41 * This file defines five types of data structures: singly-linked lists,
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	42 * lists, simple queues, tail queues and XOR simple queues.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	43 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	44 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	45 * A singly-linked list is headed by a single forward pointer. The elements
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	46 * are singly linked for minimum space and pointer manipulation overhead at
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	47 * the expense of O(n) removal for arbitrary elements. New elements can be
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	48 * added to the list after an existing element or at the head of the list.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	49 * Elements being removed from the head of the list should use the explicit
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	50 * macro for this purpose for optimum efficiency. A singly-linked list may
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	51 * only be traversed in the forward direction. Singly-linked lists are ideal
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	52 * for applications with large datasets and few or no removals or for
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	53 * implementing a LIFO queue.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	54 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	55 * A list is headed by a single forward pointer (or an array of forward
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	56 * pointers for a hash table header). The elements are doubly linked
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	57 * so that an arbitrary element can be removed without a need to
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	58 * traverse the list. New elements can be added to the list before
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	59 * or after an existing element or at the head of the list. A list
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	60 * may only be traversed in the forward direction.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	61 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	62 * A simple queue is headed by a pair of pointers, one to the head of the
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	63 * list and the other to the tail of the list. The elements are singly
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	64 * linked to save space, so elements can only be removed from the
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	65 * head of the list. New elements can be added to the list before or after
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	66 * an existing element, at the head of the list, or at the end of the
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	67 * list. A simple queue may only be traversed in the forward direction.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	68 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	69 * A tail queue is headed by a pair of pointers, one to the head of the
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	70 * list and the other to the tail of the list. The elements are doubly
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	71 * linked so that an arbitrary element can be removed without a need to
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	72 * traverse the list. New elements can be added to the list before or
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	73 * after an existing element, at the head of the list, or at the end of
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	74 * the list. A tail queue may be traversed in either direction.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	75 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	76 * An XOR simple queue is used in the same way as a regular simple queue.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	77 * The difference is that the head structure also includes a "cookie" that
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	78 * is XOR'd with the queue pointer (first, last or next) to generate the
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	79 * real pointer value.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	80 *
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	81 * For details on the use of these macros, see the queue(3) manual page.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	82 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	83
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	84 #if defined(QUEUE_MACRO_DEBUG) \|\| (defined(_KERNEL) && defined(DIAGNOSTIC))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	85 #define _Q_INVALIDATE(a) (a) = ((void *)-1)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	86 #else
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	87 #define _Q_INVALIDATE(a)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	88 #endif
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	89
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	90 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	91 * Singly-linked List definitions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	92 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	93 #define SLIST_HEAD(name, type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	94 struct name { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	95 struct type slh_first; / first element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	96 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	97
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	98 #define SLIST_HEAD_INITIALIZER(head) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	99 { NULL }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	100
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	101 #define SLIST_ENTRY(type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	102 struct { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	103 struct type sle_next; / next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	104 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	105
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	106 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	107 * Singly-linked List access methods.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	108 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	109 #define SLIST_FIRST(head) ((head)->slh_first)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	110 #define SLIST_END(head) NULL
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	111 #define SLIST_EMPTY(head) (SLIST_FIRST(head) == SLIST_END(head))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	112 #define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	113
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	114 #define SLIST_FOREACH(var, head, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	115 for((var) = SLIST_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	116 (var) != SLIST_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	117 (var) = SLIST_NEXT(var, field))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	118
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	119 #define SLIST_FOREACH_SAFE(var, head, field, tvar) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	120 for ((var) = SLIST_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	121 (var) && ((tvar) = SLIST_NEXT(var, field), 1); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	122 (var) = (tvar))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	123
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	124 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	125 * Singly-linked List functions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	126 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	127 #define SLIST_INIT(head) { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	128 SLIST_FIRST(head) = SLIST_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	129 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	130
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	131 #define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	132 (elm)->field.sle_next = (slistelm)->field.sle_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	133 (slistelm)->field.sle_next = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	134 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	135
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	136 #define SLIST_INSERT_HEAD(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	137 (elm)->field.sle_next = (head)->slh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	138 (head)->slh_first = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	139 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	140
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	141 #define SLIST_REMOVE_AFTER(elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	142 (elm)->field.sle_next = (elm)->field.sle_next->field.sle_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	143 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	144
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	145 #define SLIST_REMOVE_HEAD(head, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	146 (head)->slh_first = (head)->slh_first->field.sle_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	147 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	148
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	149 #define SLIST_REMOVE(head, elm, type, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	150 if ((head)->slh_first == (elm)) { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	151 SLIST_REMOVE_HEAD((head), field); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	152 } else { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	153 struct type *curelm = (head)->slh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	154 \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	155 while (curelm->field.sle_next != (elm)) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	156 curelm = curelm->field.sle_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	157 curelm->field.sle_next = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	158 curelm->field.sle_next->field.sle_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	159 } \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	160 _Q_INVALIDATE((elm)->field.sle_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	161 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	162
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	163 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	164 * List definitions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	165 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	166 #define LIST_HEAD(name, type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	167 struct name { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	168 struct type lh_first; / first element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	169 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	170
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	171 #define LIST_HEAD_INITIALIZER(head) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	172 { NULL }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	173
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	174 #define LIST_ENTRY(type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	175 struct { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	176 struct type le_next; / next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	177 struct type *le_prev; / address of previous next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	178 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	179
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	180 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	181 * List access methods.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	182 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	183 #define LIST_FIRST(head) ((head)->lh_first)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	184 #define LIST_END(head) NULL
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	185 #define LIST_EMPTY(head) (LIST_FIRST(head) == LIST_END(head))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	186 #define LIST_NEXT(elm, field) ((elm)->field.le_next)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	187
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	188 #define LIST_FOREACH(var, head, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	189 for((var) = LIST_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	190 (var)!= LIST_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	191 (var) = LIST_NEXT(var, field))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	192
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	193 #define LIST_FOREACH_SAFE(var, head, field, tvar) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	194 for ((var) = LIST_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	195 (var) && ((tvar) = LIST_NEXT(var, field), 1); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	196 (var) = (tvar))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	197
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	198 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	199 * List functions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	200 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	201 #define LIST_INIT(head) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	202 LIST_FIRST(head) = LIST_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	203 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	204
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	205 #define LIST_INSERT_AFTER(listelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	206 if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	207 (listelm)->field.le_next->field.le_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	208 &(elm)->field.le_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	209 (listelm)->field.le_next = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	210 (elm)->field.le_prev = &(listelm)->field.le_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	211 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	212
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	213 #define LIST_INSERT_BEFORE(listelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	214 (elm)->field.le_prev = (listelm)->field.le_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	215 (elm)->field.le_next = (listelm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	216 *(listelm)->field.le_prev = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	217 (listelm)->field.le_prev = &(elm)->field.le_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	218 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	219
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	220 #define LIST_INSERT_HEAD(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	221 if (((elm)->field.le_next = (head)->lh_first) != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	222 (head)->lh_first->field.le_prev = &(elm)->field.le_next;\
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	223 (head)->lh_first = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	224 (elm)->field.le_prev = &(head)->lh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	225 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	226
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	227 #define LIST_REMOVE(elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	228 if ((elm)->field.le_next != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	229 (elm)->field.le_next->field.le_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	230 (elm)->field.le_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	231 *(elm)->field.le_prev = (elm)->field.le_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	232 _Q_INVALIDATE((elm)->field.le_prev); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	233 _Q_INVALIDATE((elm)->field.le_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	234 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	235
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	236 #define LIST_REPLACE(elm, elm2, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	237 if (((elm2)->field.le_next = (elm)->field.le_next) != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	238 (elm2)->field.le_next->field.le_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	239 &(elm2)->field.le_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	240 (elm2)->field.le_prev = (elm)->field.le_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	241 *(elm2)->field.le_prev = (elm2); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	242 _Q_INVALIDATE((elm)->field.le_prev); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	243 _Q_INVALIDATE((elm)->field.le_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	244 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	245
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	246 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	247 * Simple queue definitions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	248 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	249 #define SIMPLEQ_HEAD(name, type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	250 struct name { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	251 struct type sqh_first; / first element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	252 struct type *sqh_last; / addr of last next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	253 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	254
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	255 #define SIMPLEQ_HEAD_INITIALIZER(head) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	256 { NULL, &(head).sqh_first }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	257
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	258 #define SIMPLEQ_ENTRY(type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	259 struct { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	260 struct type sqe_next; / next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	261 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	262
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	263 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	264 * Simple queue access methods.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	265 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	266 #define SIMPLEQ_FIRST(head) ((head)->sqh_first)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	267 #define SIMPLEQ_END(head) NULL
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	268 #define SIMPLEQ_EMPTY(head) (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	269 #define SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	270
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	271 #define SIMPLEQ_FOREACH(var, head, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	272 for((var) = SIMPLEQ_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	273 (var) != SIMPLEQ_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	274 (var) = SIMPLEQ_NEXT(var, field))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	275
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	276 #define SIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	277 for ((var) = SIMPLEQ_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	278 (var) && ((tvar) = SIMPLEQ_NEXT(var, field), 1); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	279 (var) = (tvar))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	280
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	281 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	282 * Simple queue functions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	283 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	284 #define SIMPLEQ_INIT(head) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	285 (head)->sqh_first = NULL; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	286 (head)->sqh_last = &(head)->sqh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	287 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	288
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	289 #define SIMPLEQ_INSERT_HEAD(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	290 if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	291 (head)->sqh_last = &(elm)->field.sqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	292 (head)->sqh_first = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	293 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	294
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	295 #define SIMPLEQ_INSERT_TAIL(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	296 (elm)->field.sqe_next = NULL; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	297 *(head)->sqh_last = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	298 (head)->sqh_last = &(elm)->field.sqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	299 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	300
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	301 #define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	302 if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	303 (head)->sqh_last = &(elm)->field.sqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	304 (listelm)->field.sqe_next = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	305 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	306
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	307 #define SIMPLEQ_REMOVE_HEAD(head, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	308 if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	309 (head)->sqh_last = &(head)->sqh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	310 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	311
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	312 #define SIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	313 if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	314 == NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	315 (head)->sqh_last = &(elm)->field.sqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	316 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	317
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	318 #define SIMPLEQ_CONCAT(head1, head2) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	319 if (!SIMPLEQ_EMPTY((head2))) { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	320 *(head1)->sqh_last = (head2)->sqh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	321 (head1)->sqh_last = (head2)->sqh_last; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	322 SIMPLEQ_INIT((head2)); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	323 } \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	324 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	325
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	326 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	327 * XOR Simple queue definitions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	328 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	329 #define XSIMPLEQ_HEAD(name, type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	330 struct name { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	331 struct type sqx_first; / first element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	332 struct type *sqx_last; / addr of last next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	333 unsigned long sqx_cookie; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	334 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	335
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	336 #define XSIMPLEQ_ENTRY(type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	337 struct { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	338 struct type sqx_next; / next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	339 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	340
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	341 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	342 * XOR Simple queue access methods.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	343 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	344 #define XSIMPLEQ_XOR(head, ptr) ((__typeof(ptr))((head)->sqx_cookie ^ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	345 (unsigned long)(ptr)))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	346 #define XSIMPLEQ_FIRST(head) XSIMPLEQ_XOR(head, ((head)->sqx_first))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	347 #define XSIMPLEQ_END(head) NULL
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	348 #define XSIMPLEQ_EMPTY(head) (XSIMPLEQ_FIRST(head) == XSIMPLEQ_END(head))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	349 #define XSIMPLEQ_NEXT(head, elm, field) XSIMPLEQ_XOR(head, ((elm)->field.sqx_next))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	350
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	351
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	352 #define XSIMPLEQ_FOREACH(var, head, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	353 for ((var) = XSIMPLEQ_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	354 (var) != XSIMPLEQ_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	355 (var) = XSIMPLEQ_NEXT(head, var, field))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	356
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	357 #define XSIMPLEQ_FOREACH_SAFE(var, head, field, tvar) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	358 for ((var) = XSIMPLEQ_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	359 (var) && ((tvar) = XSIMPLEQ_NEXT(head, var, field), 1); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	360 (var) = (tvar))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	361
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	362 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	363 * XOR Simple queue functions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	364 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	365 #define XSIMPLEQ_INIT(head) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	366 arc4random_buf(&(head)->sqx_cookie, sizeof((head)->sqx_cookie)); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	367 (head)->sqx_first = XSIMPLEQ_XOR(head, NULL); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	368 (head)->sqx_last = XSIMPLEQ_XOR(head, &(head)->sqx_first); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	369 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	370
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	371 #define XSIMPLEQ_INSERT_HEAD(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	372 if (((elm)->field.sqx_next = (head)->sqx_first) == \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	373 XSIMPLEQ_XOR(head, NULL)) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	374 (head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	375 (head)->sqx_first = XSIMPLEQ_XOR(head, (elm)); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	376 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	377
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	378 #define XSIMPLEQ_INSERT_TAIL(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	379 (elm)->field.sqx_next = XSIMPLEQ_XOR(head, NULL); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	380 *(XSIMPLEQ_XOR(head, (head)->sqx_last)) = XSIMPLEQ_XOR(head, (elm)); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	381 (head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	382 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	383
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	384 #define XSIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	385 if (((elm)->field.sqx_next = (listelm)->field.sqx_next) == \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	386 XSIMPLEQ_XOR(head, NULL)) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	387 (head)->sqx_last = XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	388 (listelm)->field.sqx_next = XSIMPLEQ_XOR(head, (elm)); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	389 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	390
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	391 #define XSIMPLEQ_REMOVE_HEAD(head, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	392 if (((head)->sqx_first = XSIMPLEQ_XOR(head, \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	393 (head)->sqx_first)->field.sqx_next) == XSIMPLEQ_XOR(head, NULL)) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	394 (head)->sqx_last = XSIMPLEQ_XOR(head, &(head)->sqx_first); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	395 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	396
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	397 #define XSIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	398 if (((elm)->field.sqx_next = XSIMPLEQ_XOR(head, \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	399 (elm)->field.sqx_next)->field.sqx_next) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	400 == XSIMPLEQ_XOR(head, NULL)) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	401 (head)->sqx_last = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	402 XSIMPLEQ_XOR(head, &(elm)->field.sqx_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	403 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	404
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	405
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	406 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	407 * Tail queue definitions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	408 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	409 #define TAILQ_HEAD(name, type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	410 struct name { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	411 struct type tqh_first; / first element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	412 struct type *tqh_last; / addr of last next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	413 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	414
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	415 #define TAILQ_HEAD_INITIALIZER(head) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	416 { NULL, &(head).tqh_first }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	417
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	418 #define TAILQ_ENTRY(type) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	419 struct { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	420 struct type tqe_next; / next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	421 struct type *tqe_prev; / address of previous next element */ \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	422 }
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	423
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	424 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	425 * Tail queue access methods.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	426 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	427 #define TAILQ_FIRST(head) ((head)->tqh_first)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	428 #define TAILQ_END(head) NULL
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	429 #define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	430 #define TAILQ_LAST(head, headname) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	431 ((((struct headname )((head)->tqh_last))->tqh_last))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	432 /* XXX */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	433 #define TAILQ_PREV(elm, headname, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	434 ((((struct headname )((elm)->field.tqe_prev))->tqh_last))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	435 #define TAILQ_EMPTY(head) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	436 (TAILQ_FIRST(head) == TAILQ_END(head))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	437
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	438 #define TAILQ_FOREACH(var, head, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	439 for((var) = TAILQ_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	440 (var) != TAILQ_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	441 (var) = TAILQ_NEXT(var, field))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	442
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	443 #define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	444 for ((var) = TAILQ_FIRST(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	445 (var) != TAILQ_END(head) && \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	446 ((tvar) = TAILQ_NEXT(var, field), 1); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	447 (var) = (tvar))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	448
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	449
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	450 #define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	451 for((var) = TAILQ_LAST(head, headname); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	452 (var) != TAILQ_END(head); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	453 (var) = TAILQ_PREV(var, headname, field))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	454
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	455 #define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	456 for ((var) = TAILQ_LAST(head, headname); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	457 (var) != TAILQ_END(head) && \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	458 ((tvar) = TAILQ_PREV(var, headname, field), 1); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	459 (var) = (tvar))
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	460
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	461 /*
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	462 * Tail queue functions.
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	463 */
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	464 #define TAILQ_INIT(head) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	465 (head)->tqh_first = NULL; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	466 (head)->tqh_last = &(head)->tqh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	467 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	468
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	469 #define TAILQ_INSERT_HEAD(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	470 if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	471 (head)->tqh_first->field.tqe_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	472 &(elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	473 else \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	474 (head)->tqh_last = &(elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	475 (head)->tqh_first = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	476 (elm)->field.tqe_prev = &(head)->tqh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	477 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	478
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	479 #define TAILQ_INSERT_TAIL(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	480 (elm)->field.tqe_next = NULL; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	481 (elm)->field.tqe_prev = (head)->tqh_last; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	482 *(head)->tqh_last = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	483 (head)->tqh_last = &(elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	484 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	485
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	486 #define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	487 if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	488 (elm)->field.tqe_next->field.tqe_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	489 &(elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	490 else \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	491 (head)->tqh_last = &(elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	492 (listelm)->field.tqe_next = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	493 (elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	494 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	495
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	496 #define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	497 (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	498 (elm)->field.tqe_next = (listelm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	499 *(listelm)->field.tqe_prev = (elm); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	500 (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	501 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	502
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	503 #define TAILQ_REMOVE(head, elm, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	504 if (((elm)->field.tqe_next) != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	505 (elm)->field.tqe_next->field.tqe_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	506 (elm)->field.tqe_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	507 else \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	508 (head)->tqh_last = (elm)->field.tqe_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	509 *(elm)->field.tqe_prev = (elm)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	510 _Q_INVALIDATE((elm)->field.tqe_prev); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	511 _Q_INVALIDATE((elm)->field.tqe_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	512 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	513
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	514 #define TAILQ_REPLACE(head, elm, elm2, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	515 if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	516 (elm2)->field.tqe_next->field.tqe_prev = \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	517 &(elm2)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	518 else \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	519 (head)->tqh_last = &(elm2)->field.tqe_next; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	520 (elm2)->field.tqe_prev = (elm)->field.tqe_prev; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	521 *(elm2)->field.tqe_prev = (elm2); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	522 _Q_INVALIDATE((elm)->field.tqe_prev); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	523 _Q_INVALIDATE((elm)->field.tqe_next); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	524 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	525
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	526 #define TAILQ_CONCAT(head1, head2, field) do { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	527 if (!TAILQ_EMPTY(head2)) { \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	528 *(head1)->tqh_last = (head2)->tqh_first; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	529 (head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	530 (head1)->tqh_last = (head2)->tqh_last; \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	531 TAILQ_INIT((head2)); \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	532 } \
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	533 } while (0)
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	534
a08ef0674d8e Page long output in interactive mode Guido Berhoerster <guido+pwm@berhoerster.name> parents: diff changeset	535 #endif /* !_SYS_QUEUE_H_ */

Mercurial > projects > pwm

annotate compat/queue.h @ 26:5bdea77d0c1d