Mercurial > ecos

annotate packages/net/tcpip/current/include/sys/queue.h @ 208:e0c0827131d1 ecos

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents ced4577552cd
children 74dbf4c3f2e1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
97
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
1 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
2 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
3 // include/sys/queue.h
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
4 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
5 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
6 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
7 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
8 //####BSDCOPYRIGHTBEGIN####
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
9 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
10 // -------------------------------------------
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
11 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
12 // Portions of this software may have been derived from OpenBSD or other sources,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
13 // and are covered by the appropriate copyright disclaimers included herein.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
14 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
15 // -------------------------------------------
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
16 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
17 //####BSDCOPYRIGHTEND####
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
18 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
19 //#####DESCRIPTIONBEGIN####
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
20 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
21 // Author(s): gthomas
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
22 // Contributors: gthomas
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
23 // Date: 2000-01-10
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
24 // Purpose:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
25 // Description:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
26 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
27 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
28 //####DESCRIPTIONEND####
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
29 //
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
30 //==========================================================================
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
31
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
32
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
33 /* $OpenBSD: queue.h,v 1.14 1999/09/08 08:20:04 espie Exp $ */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
34 /* $NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $ */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
35
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
36 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
37 * Copyright (c) 1991, 1993
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
38 * The Regents of the University of California. All rights reserved.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
39 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
40 * Redistribution and use in source and binary forms, with or without
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
41 * modification, are permitted provided that the following conditions
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
42 * are met:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
43 * 1. Redistributions of source code must retain the above copyright
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
44 * notice, this list of conditions and the following disclaimer.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
45 * 2. Redistributions in binary form must reproduce the above copyright
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
46 * notice, this list of conditions and the following disclaimer in the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
47 * documentation and/or other materials provided with the distribution.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
48 * 3. All advertising materials mentioning features or use of this software
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
49 * must display the following acknowledgement:
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
50 * This product includes software developed by the University of
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
51 * California, Berkeley and its contributors.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
52 * 4. Neither the name of the University nor the names of its contributors
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
53 * may be used to endorse or promote products derived from this software
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
54 * without specific prior written permission.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
55 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
56 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
57 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
58 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
59 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
60 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
61 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
62 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
63 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
64 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
65 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
66 * SUCH DAMAGE.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
67 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
68 * @(#)queue.h 8.5 (Berkeley) 8/20/94
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
69 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
70
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
71 #ifndef _SYS_QUEUE_H_
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
72 #define _SYS_QUEUE_H_
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
73
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
74 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
75 * This file defines five types of data structures: singly-linked lists,
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
76 * lists, simple queues, tail queues, and circular queues.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
77 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
78 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
79 * A singly-linked list is headed by a single forward pointer. The elements
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
80 * are singly linked for minimum space and pointer manipulation overhead at
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
81 * the expense of O(n) removal for arbitrary elements. New elements can be
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
82 * added to the list after an existing element or at the head of the list.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
83 * Elements being removed from the head of the list should use the explicit
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
84 * macro for this purpose for optimum efficiency. A singly-linked list may
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
85 * only be traversed in the forward direction. Singly-linked lists are ideal
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
86 * for applications with large datasets and few or no removals or for
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
87 * implementing a LIFO queue.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
88 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
89 * A list is headed by a single forward pointer (or an array of forward
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
90 * pointers for a hash table header). The elements are doubly linked
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
91 * so that an arbitrary element can be removed without a need to
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
92 * traverse the list. New elements can be added to the list before
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
93 * or after an existing element or at the head of the list. A list
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
94 * may only be traversed in the forward direction.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
95 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
96 * A simple queue is headed by a pair of pointers, one the head of the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
97 * list and the other to the tail of the list. The elements are singly
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
98 * linked to save space, so elements can only be removed from the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
99 * head of the list. New elements can be added to the list before or after
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
100 * an existing element, at the head of the list, or at the end of the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
101 * list. A simple queue may only be traversed in the forward direction.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
102 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
103 * A tail queue is headed by a pair of pointers, one to the head of the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
104 * list and the other to the tail of the list. The elements are doubly
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
105 * linked so that an arbitrary element can be removed without a need to
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
106 * traverse the list. New elements can be added to the list before or
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
107 * after an existing element, at the head of the list, or at the end of
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
108 * the list. A tail queue may be traversed in either direction.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
109 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
110 * A circle queue is headed by a pair of pointers, one to the head of the
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
111 * list and the other to the tail of the list. The elements are doubly
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
112 * linked so that an arbitrary element can be removed without a need to
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
113 * traverse the list. New elements can be added to the list before or after
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
114 * an existing element, at the head of the list, or at the end of the list.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
115 * A circle queue may be traversed in either direction, but has a more
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
116 * complex end of list detection.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
117 *
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
118 * For details on the use of these macros, see the queue(3) manual page.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
119 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
120
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
121 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
122 * Singly-linked List definitions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
123 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
124 #define SLIST_HEAD(name, type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
125 struct name { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
126 struct type *slh_first; /* first element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
127 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
128
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
129 #define SLIST_HEAD_INITIALIZER(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
130 { NULL }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
131
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
132 #define SLIST_ENTRY(type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
133 struct { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
134 struct type *sle_next; /* next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
135 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
136
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
137 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
138 * Singly-linked List access methods.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
139 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
140 #define SLIST_FIRST(head) ((head)->slh_first)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
141 #define SLIST_END(head) NULL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
142 #define SLIST_EMPTY(head) (SLIST_FIRST(head) == SLIST_END(head))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
143 #define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
144
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
145 #define SLIST_FOREACH(var, head, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
146 for((var) = SLIST_FIRST(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
147 (var) != SLIST_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
148 (var) = SLIST_NEXT(var, field))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
149
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
150 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
151 * Singly-linked List functions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
152 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
153 #define SLIST_INIT(head) { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
154 SLIST_FIRST(head) = SLIST_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
155 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
156
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
157 #define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
158 (elm)->field.sle_next = (slistelm)->field.sle_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
159 (slistelm)->field.sle_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
160 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
161
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
162 #define SLIST_INSERT_HEAD(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
163 (elm)->field.sle_next = (head)->slh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
164 (head)->slh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
165 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
166
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
167 #define SLIST_REMOVE_HEAD(head, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
168 (head)->slh_first = (head)->slh_first->field.sle_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
169 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
170
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
171 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
172 * List definitions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
173 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
174 #define LIST_HEAD(name, type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
175 struct name { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
176 struct type *lh_first; /* first element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
177 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
178
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
179 #define LIST_HEAD_INITIALIZER(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
180 { NULL }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
181
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
182 #define LIST_ENTRY(type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
183 struct { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
184 struct type *le_next; /* next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
185 struct type **le_prev; /* address of previous next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
186 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
187
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
188 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
189 * List access methods
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
190 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
191 #define LIST_FIRST(head) ((head)->lh_first)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
192 #define LIST_END(head) NULL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
193 #define LIST_EMPTY(head) (LIST_FIRST(head) == LIST_END(head))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
194 #define LIST_NEXT(elm, field) ((elm)->field.le_next)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
195
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
196 #define LIST_FOREACH(var, head, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
197 for((var) = LIST_FIRST(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
198 (var)!= LIST_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
199 (var) = LIST_NEXT(var, field))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
200
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
201 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
202 * List functions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
203 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
204 #define LIST_INIT(head) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
205 LIST_FIRST(head) = LIST_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
206 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
207
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
208 #define LIST_INSERT_AFTER(listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
209 if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
210 (listelm)->field.le_next->field.le_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
211 &(elm)->field.le_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
212 (listelm)->field.le_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
213 (elm)->field.le_prev = &(listelm)->field.le_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
214 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
215
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
216 #define LIST_INSERT_BEFORE(listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
217 (elm)->field.le_prev = (listelm)->field.le_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
218 (elm)->field.le_next = (listelm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
219 *(listelm)->field.le_prev = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
220 (listelm)->field.le_prev = &(elm)->field.le_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
221 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
222
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
223 #define LIST_INSERT_HEAD(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
224 if (((elm)->field.le_next = (head)->lh_first) != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
225 (head)->lh_first->field.le_prev = &(elm)->field.le_next;\
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
226 (head)->lh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
227 (elm)->field.le_prev = &(head)->lh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
228 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
229
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
230 #define LIST_REMOVE(elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
231 if ((elm)->field.le_next != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
232 (elm)->field.le_next->field.le_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
233 (elm)->field.le_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
234 *(elm)->field.le_prev = (elm)->field.le_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
235 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
236
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
237 #define LIST_REPLACE(elm, elm2, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
238 if (((elm2)->field.le_next = (elm)->field.le_next) != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
239 (elm2)->field.le_next->field.le_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
240 &(elm2)->field.le_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
241 (elm2)->field.le_prev = (elm)->field.le_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
242 *(elm2)->field.le_prev = (elm2); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
243 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
244
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
245 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
246 * Simple queue definitions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
247 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
248 #define SIMPLEQ_HEAD(name, type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
249 struct name { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
250 struct type *sqh_first; /* first element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
251 struct type **sqh_last; /* addr of last next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
252 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
253
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
254 #define SIMPLEQ_HEAD_INITIALIZER(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
255 { NULL, &(head).sqh_first }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
256
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
257 #define SIMPLEQ_ENTRY(type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
258 struct { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
259 struct type *sqe_next; /* next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
260 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
261
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
262 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
263 * Simple queue access methods.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
264 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
265 #define SIMPLEQ_FIRST(head) ((head)->sqh_first)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
266 #define SIMPLEQ_END(head) NULL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
267 #define SIMPLEQ_EMPTY(head) (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
268 #define SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
269
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
270 #define SIMPLEQ_FOREACH(var, head, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
271 for((var) = SIMPLEQ_FIRST(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
272 (var) != SIMPLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
273 (var) = SIMPLEQ_NEXT(var, field))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
274
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
275 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
276 * Simple queue functions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
277 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
278 #define SIMPLEQ_INIT(head) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
279 (head)->sqh_first = NULL; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
280 (head)->sqh_last = &(head)->sqh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
281 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
282
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
283 #define SIMPLEQ_INSERT_HEAD(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
284 if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
285 (head)->sqh_last = &(elm)->field.sqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
286 (head)->sqh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
287 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
288
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
289 #define SIMPLEQ_INSERT_TAIL(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
290 (elm)->field.sqe_next = NULL; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
291 *(head)->sqh_last = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
292 (head)->sqh_last = &(elm)->field.sqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
293 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
294
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
295 #define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
296 if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
297 (head)->sqh_last = &(elm)->field.sqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
298 (listelm)->field.sqe_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
299 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
300
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
301 #define SIMPLEQ_REMOVE_HEAD(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
302 if (((head)->sqh_first = (elm)->field.sqe_next) == NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
303 (head)->sqh_last = &(head)->sqh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
304 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
305
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
306 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
307 * Tail queue definitions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
308 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
309 #define TAILQ_HEAD(name, type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
310 struct name { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
311 struct type *tqh_first; /* first element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
312 struct type **tqh_last; /* addr of last next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
313 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
314
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
315 #define TAILQ_HEAD_INITIALIZER(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
316 { NULL, &(head).tqh_first }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
317
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
318 #define TAILQ_ENTRY(type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
319 struct { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
320 struct type *tqe_next; /* next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
321 struct type **tqe_prev; /* address of previous next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
322 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
323
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
324 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
325 * tail queue access methods
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
326 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
327 #define TAILQ_FIRST(head) ((head)->tqh_first)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
328 #define TAILQ_END(head) NULL
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
329 #define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
330 #define TAILQ_LAST(head, headname) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
331 (*(((struct headname *)((head)->tqh_last))->tqh_last))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
332 /* XXX */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
333 #define TAILQ_PREV(elm, headname, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
334 (*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
335 #define TAILQ_EMPTY(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
336 (TAILQ_FIRST(head) == TAILQ_END(head))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
337
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
338 #define TAILQ_FOREACH(var, head, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
339 for((var) = TAILQ_FIRST(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
340 (var) != TAILQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
341 (var) = TAILQ_NEXT(var, field))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
342
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
343 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
344 * Tail queue functions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
345 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
346 #define TAILQ_INIT(head) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
347 (head)->tqh_first = NULL; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
348 (head)->tqh_last = &(head)->tqh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
349 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
350
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
351 #define TAILQ_INSERT_HEAD(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
352 if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
353 (head)->tqh_first->field.tqe_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
354 &(elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
355 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
356 (head)->tqh_last = &(elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
357 (head)->tqh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
358 (elm)->field.tqe_prev = &(head)->tqh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
359 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
360
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
361 #define TAILQ_INSERT_TAIL(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
362 (elm)->field.tqe_next = NULL; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
363 (elm)->field.tqe_prev = (head)->tqh_last; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
364 *(head)->tqh_last = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
365 (head)->tqh_last = &(elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
366 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
367
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
368 #define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
369 if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
370 (elm)->field.tqe_next->field.tqe_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
371 &(elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
372 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
373 (head)->tqh_last = &(elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
374 (listelm)->field.tqe_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
375 (elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
376 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
377
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
378 #define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
379 (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
380 (elm)->field.tqe_next = (listelm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
381 *(listelm)->field.tqe_prev = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
382 (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
383 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
384
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
385 #define TAILQ_REMOVE(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
386 if (((elm)->field.tqe_next) != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
387 (elm)->field.tqe_next->field.tqe_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
388 (elm)->field.tqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
389 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
390 (head)->tqh_last = (elm)->field.tqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
391 *(elm)->field.tqe_prev = (elm)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
392 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
393
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
394 #define TAILQ_REPLACE(head, elm, elm2, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
395 if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
396 (elm2)->field.tqe_next->field.tqe_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
397 &(elm2)->field.le_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
398 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
399 (head).tqh_last = &(elm2)->field.tqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
400 (elm2)->field.tqe_prev = (elm)->field.tqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
401 *(elm2)->field.tqe_prev = (elm2); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
402 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
403
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
404 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
405 * Circular queue definitions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
406 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
407 #define CIRCLEQ_HEAD(name, type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
408 struct name { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
409 struct type *cqh_first; /* first element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
410 struct type *cqh_last; /* last element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
411 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
412
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
413 #define CIRCLEQ_HEAD_INITIALIZER(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
414 { CIRCLEQ_END(&head), CIRCLEQ_END(&head) }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
415
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
416 #define CIRCLEQ_ENTRY(type) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
417 struct { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
418 struct type *cqe_next; /* next element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
419 struct type *cqe_prev; /* previous element */ \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
420 }
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
421
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
422 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
423 * Circular queue access methods
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
424 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
425 #define CIRCLEQ_FIRST(head) ((head)->cqh_first)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
426 #define CIRCLEQ_LAST(head) ((head)->cqh_last)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
427 #define CIRCLEQ_END(head) ((void *)(head))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
428 #define CIRCLEQ_NEXT(elm, field) ((elm)->field.cqe_next)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
429 #define CIRCLEQ_PREV(elm, field) ((elm)->field.cqe_prev)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
430 #define CIRCLEQ_EMPTY(head) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
431 (CIRCLEQ_FIRST(head) == CIRCLEQ_END(head))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
432
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
433 #define CIRCLEQ_FOREACH(var, head, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
434 for((var) = CIRCLEQ_FIRST(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
435 (var) != CIRCLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
436 (var) = CIRCLEQ_NEXT(var, field))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
437
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
438 #define CIRCLEQ_FOREACH_REVERSE(var, head, field) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
439 for((var) = CIRCLEQ_LAST(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
440 (var) != CIRCLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
441 (var) = CIRCLEQ_PREV(var, field))
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
442
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
443 /*
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
444 * Circular queue functions.
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
445 */
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
446 #define CIRCLEQ_INIT(head) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
447 (head)->cqh_first = CIRCLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
448 (head)->cqh_last = CIRCLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
449 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
450
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
451 #define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
452 (elm)->field.cqe_next = (listelm)->field.cqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
453 (elm)->field.cqe_prev = (listelm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
454 if ((listelm)->field.cqe_next == CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
455 (head)->cqh_last = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
456 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
457 (listelm)->field.cqe_next->field.cqe_prev = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
458 (listelm)->field.cqe_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
459 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
460
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
461 #define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
462 (elm)->field.cqe_next = (listelm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
463 (elm)->field.cqe_prev = (listelm)->field.cqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
464 if ((listelm)->field.cqe_prev == CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
465 (head)->cqh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
466 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
467 (listelm)->field.cqe_prev->field.cqe_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
468 (listelm)->field.cqe_prev = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
469 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
470
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
471 #define CIRCLEQ_INSERT_HEAD(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
472 (elm)->field.cqe_next = (head)->cqh_first; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
473 (elm)->field.cqe_prev = CIRCLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
474 if ((head)->cqh_last == CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
475 (head)->cqh_last = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
476 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
477 (head)->cqh_first->field.cqe_prev = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
478 (head)->cqh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
479 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
480
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
481 #define CIRCLEQ_INSERT_TAIL(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
482 (elm)->field.cqe_next = CIRCLEQ_END(head); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
483 (elm)->field.cqe_prev = (head)->cqh_last; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
484 if ((head)->cqh_first == CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
485 (head)->cqh_first = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
486 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
487 (head)->cqh_last->field.cqe_next = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
488 (head)->cqh_last = (elm); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
489 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
490
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
491 #define CIRCLEQ_REMOVE(head, elm, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
492 if ((elm)->field.cqe_next == CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
493 (head)->cqh_last = (elm)->field.cqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
494 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
495 (elm)->field.cqe_next->field.cqe_prev = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
496 (elm)->field.cqe_prev; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
497 if ((elm)->field.cqe_prev == CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
498 (head)->cqh_first = (elm)->field.cqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
499 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
500 (elm)->field.cqe_prev->field.cqe_next = \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
501 (elm)->field.cqe_next; \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
502 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
503
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
504 #define CIRCLEQ_REPLACE(head, elm, elm2, field) do { \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
505 if (((elm2)->field.cqe_next = (elm)->field.cqe_next) == \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
506 CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
507 (head).cqh_last = (elm2); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
508 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
509 (elm2)->field.cqe_next->field.cqe_prev = (elm2); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
510 if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) == \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
511 CIRCLEQ_END(head)) \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
512 (head).cqh_first = (elm2); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
513 else \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
514 (elm2)->field.cqe_prev->field.cqe_next = (elm2); \
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
515 } while (0)
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
516
ced4577552cd Merge from eCos master repository on 2000-06-06-08:44:00-BST
jlarmour
parents:
diff changeset
517 #endif /* !_SYS_QUEUE_H_ */