mirror of
https://gitlab.freedesktop.org/libbsd/libbsd.git
synced 2025-01-24 19:02:59 +01:00
Move <bsd/queue.h> to <bsd/sys/queue.h>
This maps more closely the location of the real header. For transitional purposes keep a <bsd/queue.h> that warns and includes <bsd/sys/queue.h>.
This commit is contained in:
Guillem Jover
parent
d3e14ea99e
commit
b6e8469059
3
Makefile
3
Makefile
@ -45,13 +45,14 @@ LIB_GEN_SRCS := \
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LIB_INCLUDES := \
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LIB_INCLUDES := \
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bsd/cdefs.h \
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bsd/cdefs.h \
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bsd/queue.h \
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bsd/sys/cdefs.h \
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bsd/sys/cdefs.h \
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bsd/sys/queue.h \
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bsd/err.h \
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bsd/err.h \
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bsd/getopt.h \
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bsd/getopt.h \
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bsd/inet.h \
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bsd/inet.h \
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bsd/ip_icmp.h \
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bsd/ip_icmp.h \
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bsd/random.h \
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bsd/random.h \
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bsd/queue.h \
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bsd/md5.h \
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bsd/md5.h \
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bsd/string.h \
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bsd/string.h \
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bsd/bsd.h \
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bsd/bsd.h \
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@ -32,13 +32,13 @@
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*/
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*/
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#include <bsd/sys/cdefs.h>
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#include <bsd/sys/cdefs.h>
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#include <bsd/sys/queue.h>
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#include <bsd/stdlib.h>
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#include <bsd/stdlib.h>
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#include <bsd/string.h>
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#include <bsd/string.h>
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#include <bsd/err.h>
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#include <bsd/err.h>
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#include <bsd/getopt.h>
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#include <bsd/getopt.h>
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#include <bsd/random.h>
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#include <bsd/random.h>
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#include <bsd/md5.h>
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#include <bsd/md5.h>
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#include <bsd/queue.h>
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#include <bsd/ip_icmp.h>
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#include <bsd/ip_icmp.h>
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#include <time.h>
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#include <time.h>
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@ -1,6 +1,5 @@
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/*-
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/*
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* Copyright (c) 1991, 1993
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* Copyright © 2009 Guillem Jover
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* The Regents of the University of California. All rights reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* modification, are permitted provided that the following conditions
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@ -10,613 +9,27 @@
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* 2. Redistributions in binary form must reproduce the above copyright
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* 3. The name of the author may not be used to endorse or promote products
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* may be used to endorse or promote products derived from this software
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* derived from this software without specific prior written permission.
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* SUCH DAMAGE.
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*
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* @(#)queue.h 8.5 (Berkeley) 8/20/94
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* $FreeBSD$
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*/
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*/
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#ifndef _SYS_QUEUE_H_
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#ifndef LIBBSD_BSD_QUEUE_H
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#define _SYS_QUEUE_H_
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#define LIBBSD_BSD_QUEUE_H
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#include <sys/cdefs.h>
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#warning "This header is deprecated, use the one in bsd/sys/queue.h instead."
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/*
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#include <bsd/sys/queue.h>
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* This file defines four types of data structures: singly-linked lists,
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* singly-linked tail queues, lists and tail queues.
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*
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* A singly-linked list is headed by a single forward pointer. The elements
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* are singly linked for minimum space and pointer manipulation overhead at
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* the expense of O(n) removal for arbitrary elements. New elements can be
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* added to the list after an existing element or at the head of the list.
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* Elements being removed from the head of the list should use the explicit
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* macro for this purpose for optimum efficiency. A singly-linked list may
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* only be traversed in the forward direction. Singly-linked lists are ideal
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* for applications with large datasets and few or no removals or for
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* implementing a LIFO queue.
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*
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* A singly-linked tail queue is headed by a pair of pointers, one to the
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* head of the list and the other to the tail of the list. The elements are
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* singly linked for minimum space and pointer manipulation overhead at the
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* expense of O(n) removal for arbitrary elements. New elements can be added
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* to the list after an existing element, at the head of the list, or at the
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* end of the list. Elements being removed from the head of the tail queue
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* should use the explicit macro for this purpose for optimum efficiency.
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* A singly-linked tail queue may only be traversed in the forward direction.
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* Singly-linked tail queues are ideal for applications with large datasets
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* and few or no removals or for implementing a FIFO queue.
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*
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* A list is headed by a single forward pointer (or an array of forward
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* pointers for a hash table header). The elements are doubly linked
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* so that an arbitrary element can be removed without a need to
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* traverse the list. New elements can be added to the list before
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* or after an existing element or at the head of the list. A list
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* may only be traversed in the forward direction.
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*
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* A tail queue is headed by a pair of pointers, one to the head of the
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* list and the other to the tail of the list. The elements are doubly
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* linked so that an arbitrary element can be removed without a need to
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* traverse the list. New elements can be added to the list before or
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* after an existing element, at the head of the list, or at the end of
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* the list. A tail queue may be traversed in either direction.
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*
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* For details on the use of these macros, see the queue(3) manual page.
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*
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*
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* SLIST LIST STAILQ TAILQ
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* _HEAD + + + +
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* _HEAD_INITIALIZER + + + +
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* _ENTRY + + + +
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* _INIT + + + +
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* _EMPTY + + + +
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* _FIRST + + + +
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* _NEXT + + + +
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* _PREV - - - +
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* _LAST - - + +
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* _FOREACH + + + +
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* _FOREACH_SAFE + + + +
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* _FOREACH_REVERSE - - - +
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* _FOREACH_REVERSE_SAFE - - - +
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* _INSERT_HEAD + + + +
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* _INSERT_BEFORE - + - +
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* _INSERT_AFTER + + + +
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* _INSERT_TAIL - - + +
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* _CONCAT - - + +
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* _REMOVE_AFTER + - + -
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* _REMOVE_HEAD + - + -
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* _REMOVE + + + +
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*
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*/
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#ifdef QUEUE_MACRO_DEBUG
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/* Store the last 2 places the queue element or head was altered */
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struct qm_trace {
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char * lastfile;
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int lastline;
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char * prevfile;
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int prevline;
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};
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#define TRACEBUF struct qm_trace trace;
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#endif
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#define TRASHIT(x) do {(x) = (void *)-1;} while (0)
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#define QMD_TRACE_HEAD(head) do { \
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(head)->trace.prevline = (head)->trace.lastline; \
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(head)->trace.prevfile = (head)->trace.lastfile; \
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(head)->trace.lastline = __LINE__; \
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(head)->trace.lastfile = __FILE__; \
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} while (0)
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#define QMD_TRACE_ELEM(elem) do { \
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(elem)->trace.prevline = (elem)->trace.lastline; \
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(elem)->trace.prevfile = (elem)->trace.lastfile; \
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(elem)->trace.lastline = __LINE__; \
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(elem)->trace.lastfile = __FILE__; \
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} while (0)
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#else
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#define QMD_TRACE_ELEM(elem)
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#define QMD_TRACE_HEAD(head)
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#define TRACEBUF
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#define TRASHIT(x)
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#endif /* QUEUE_MACRO_DEBUG */
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/*
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* Singly-linked List declarations.
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*/
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#define SLIST_HEAD(name, type) \
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struct name { \
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struct type *slh_first; /* first element */ \
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}
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#define SLIST_HEAD_INITIALIZER(head) \
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{ NULL }
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#define SLIST_ENTRY(type) \
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struct { \
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struct type *sle_next; /* next element */ \
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}
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/*
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* Singly-linked List functions.
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*/
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#define SLIST_EMPTY(head) ((head)->slh_first == NULL)
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#define SLIST_FIRST(head) ((head)->slh_first)
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#define SLIST_FOREACH(var, head, field) \
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for ((var) = SLIST_FIRST((head)); \
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(var); \
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(var) = SLIST_NEXT((var), field))
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#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
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for ((var) = SLIST_FIRST((head)); \
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(var) && ((tvar) = SLIST_NEXT((var), field), 1); \
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(var) = (tvar))
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#define SLIST_FOREACH_PREVPTR(var, varp, head, field) \
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for ((varp) = &SLIST_FIRST((head)); \
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((var) = *(varp)) != NULL; \
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(varp) = &SLIST_NEXT((var), field))
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#define SLIST_INIT(head) do { \
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SLIST_FIRST((head)) = NULL; \
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} while (0)
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#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
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SLIST_NEXT((elm), field) = SLIST_NEXT((slistelm), field); \
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SLIST_NEXT((slistelm), field) = (elm); \
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} while (0)
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#define SLIST_INSERT_HEAD(head, elm, field) do { \
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SLIST_NEXT((elm), field) = SLIST_FIRST((head)); \
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SLIST_FIRST((head)) = (elm); \
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} while (0)
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#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
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#define SLIST_REMOVE(head, elm, type, field) do { \
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if (SLIST_FIRST((head)) == (elm)) { \
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SLIST_REMOVE_HEAD((head), field); \
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} \
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else { \
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struct type *curelm = SLIST_FIRST((head)); \
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while (SLIST_NEXT(curelm, field) != (elm)) \
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curelm = SLIST_NEXT(curelm, field); \
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SLIST_REMOVE_AFTER(curelm, field); \
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} \
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TRASHIT((elm)->field.sle_next); \
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} while (0)
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#define SLIST_REMOVE_AFTER(elm, field) do { \
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SLIST_NEXT(elm, field) = \
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SLIST_NEXT(SLIST_NEXT(elm, field), field); \
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} while (0)
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#define SLIST_REMOVE_HEAD(head, field) do { \
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SLIST_FIRST((head)) = SLIST_NEXT(SLIST_FIRST((head)), field); \
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} while (0)
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/*
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* Singly-linked Tail queue declarations.
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*/
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#define STAILQ_HEAD(name, type) \
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struct name { \
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struct type *stqh_first;/* first element */ \
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struct type **stqh_last;/* addr of last next element */ \
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}
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#define STAILQ_HEAD_INITIALIZER(head) \
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{ NULL, &(head).stqh_first }
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#define STAILQ_ENTRY(type) \
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struct { \
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struct type *stqe_next; /* next element */ \
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}
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/*
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* Singly-linked Tail queue functions.
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*/
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#define STAILQ_CONCAT(head1, head2) do { \
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if (!STAILQ_EMPTY((head2))) { \
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*(head1)->stqh_last = (head2)->stqh_first; \
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(head1)->stqh_last = (head2)->stqh_last; \
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STAILQ_INIT((head2)); \
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} \
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} while (0)
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#define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
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#define STAILQ_FIRST(head) ((head)->stqh_first)
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#define STAILQ_FOREACH(var, head, field) \
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for((var) = STAILQ_FIRST((head)); \
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(var); \
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(var) = STAILQ_NEXT((var), field))
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#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
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for ((var) = STAILQ_FIRST((head)); \
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(var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
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(var) = (tvar))
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#define STAILQ_INIT(head) do { \
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STAILQ_FIRST((head)) = NULL; \
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(head)->stqh_last = &STAILQ_FIRST((head)); \
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} while (0)
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#define STAILQ_INSERT_AFTER(head, tqelm, elm, field) do { \
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if ((STAILQ_NEXT((elm), field) = STAILQ_NEXT((tqelm), field)) == NULL)\
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(head)->stqh_last = &STAILQ_NEXT((elm), field); \
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STAILQ_NEXT((tqelm), field) = (elm); \
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} while (0)
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#define STAILQ_INSERT_HEAD(head, elm, field) do { \
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if ((STAILQ_NEXT((elm), field) = STAILQ_FIRST((head))) == NULL) \
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(head)->stqh_last = &STAILQ_NEXT((elm), field); \
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STAILQ_FIRST((head)) = (elm); \
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} while (0)
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#define STAILQ_INSERT_TAIL(head, elm, field) do { \
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STAILQ_NEXT((elm), field) = NULL; \
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*(head)->stqh_last = (elm); \
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(head)->stqh_last = &STAILQ_NEXT((elm), field); \
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} while (0)
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#define STAILQ_LAST(head, type, field) \
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(STAILQ_EMPTY((head)) ? \
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NULL : \
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((struct type *)(void *) \
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((char *)((head)->stqh_last) - __offsetof(struct type, field))))
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#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
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#define STAILQ_REMOVE(head, elm, type, field) do { \
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if (STAILQ_FIRST((head)) == (elm)) { \
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STAILQ_REMOVE_HEAD((head), field); \
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} \
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else { \
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struct type *curelm = STAILQ_FIRST((head)); \
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while (STAILQ_NEXT(curelm, field) != (elm)) \
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curelm = STAILQ_NEXT(curelm, field); \
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STAILQ_REMOVE_AFTER(head, curelm, field); \
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} \
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TRASHIT((elm)->field.stqe_next); \
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} while (0)
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|
||||||
#define STAILQ_REMOVE_HEAD(head, field) do { \
|
|
||||||
if ((STAILQ_FIRST((head)) = \
|
|
||||||
STAILQ_NEXT(STAILQ_FIRST((head)), field)) == NULL) \
|
|
||||||
(head)->stqh_last = &STAILQ_FIRST((head)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define STAILQ_REMOVE_AFTER(head, elm, field) do { \
|
|
||||||
if ((STAILQ_NEXT(elm, field) = \
|
|
||||||
STAILQ_NEXT(STAILQ_NEXT(elm, field), field)) == NULL) \
|
|
||||||
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define STAILQ_SWAP(head1, head2, type) do { \
|
|
||||||
struct type *swap_first = STAILQ_FIRST(head1); \
|
|
||||||
struct type **swap_last = (head1)->stqh_last; \
|
|
||||||
STAILQ_FIRST(head1) = STAILQ_FIRST(head2); \
|
|
||||||
(head1)->stqh_last = (head2)->stqh_last; \
|
|
||||||
STAILQ_FIRST(head2) = swap_first; \
|
|
||||||
(head2)->stqh_last = swap_last; \
|
|
||||||
if (STAILQ_EMPTY(head1)) \
|
|
||||||
(head1)->stqh_last = &STAILQ_FIRST(head1); \
|
|
||||||
if (STAILQ_EMPTY(head2)) \
|
|
||||||
(head2)->stqh_last = &STAILQ_FIRST(head2); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* List declarations.
|
|
||||||
*/
|
|
||||||
#define LIST_HEAD(name, type) \
|
|
||||||
struct name { \
|
|
||||||
struct type *lh_first; /* first element */ \
|
|
||||||
}
|
|
||||||
|
|
||||||
#define LIST_HEAD_INITIALIZER(head) \
|
|
||||||
{ NULL }
|
|
||||||
|
|
||||||
#define LIST_ENTRY(type) \
|
|
||||||
struct { \
|
|
||||||
struct type *le_next; /* next element */ \
|
|
||||||
struct type **le_prev; /* address of previous next element */ \
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* List functions.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#if (defined(_KERNEL) && defined(INVARIANTS))
|
|
||||||
#define QMD_LIST_CHECK_HEAD(head, field) do { \
|
|
||||||
if (LIST_FIRST((head)) != NULL && \
|
|
||||||
LIST_FIRST((head))->field.le_prev != \
|
|
||||||
&LIST_FIRST((head))) \
|
|
||||||
panic("Bad list head %p first->prev != head", (head)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define QMD_LIST_CHECK_NEXT(elm, field) do { \
|
|
||||||
if (LIST_NEXT((elm), field) != NULL && \
|
|
||||||
LIST_NEXT((elm), field)->field.le_prev != \
|
|
||||||
&((elm)->field.le_next)) \
|
|
||||||
panic("Bad link elm %p next->prev != elm", (elm)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define QMD_LIST_CHECK_PREV(elm, field) do { \
|
|
||||||
if (*(elm)->field.le_prev != (elm)) \
|
|
||||||
panic("Bad link elm %p prev->next != elm", (elm)); \
|
|
||||||
} while (0)
|
|
||||||
#else
|
|
||||||
#define QMD_LIST_CHECK_HEAD(head, field)
|
|
||||||
#define QMD_LIST_CHECK_NEXT(elm, field)
|
|
||||||
#define QMD_LIST_CHECK_PREV(elm, field)
|
|
||||||
#endif /* (_KERNEL && INVARIANTS) */
|
|
||||||
|
|
||||||
#define LIST_EMPTY(head) ((head)->lh_first == NULL)
|
|
||||||
|
|
||||||
#define LIST_FIRST(head) ((head)->lh_first)
|
|
||||||
|
|
||||||
#define LIST_FOREACH(var, head, field) \
|
|
||||||
for ((var) = LIST_FIRST((head)); \
|
|
||||||
(var); \
|
|
||||||
(var) = LIST_NEXT((var), field))
|
|
||||||
|
|
||||||
#define LIST_FOREACH_SAFE(var, head, field, tvar) \
|
|
||||||
for ((var) = LIST_FIRST((head)); \
|
|
||||||
(var) && ((tvar) = LIST_NEXT((var), field), 1); \
|
|
||||||
(var) = (tvar))
|
|
||||||
|
|
||||||
#define LIST_INIT(head) do { \
|
|
||||||
LIST_FIRST((head)) = NULL; \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define LIST_INSERT_AFTER(listelm, elm, field) do { \
|
|
||||||
QMD_LIST_CHECK_NEXT(listelm, field); \
|
|
||||||
if ((LIST_NEXT((elm), field) = LIST_NEXT((listelm), field)) != NULL)\
|
|
||||||
LIST_NEXT((listelm), field)->field.le_prev = \
|
|
||||||
&LIST_NEXT((elm), field); \
|
|
||||||
LIST_NEXT((listelm), field) = (elm); \
|
|
||||||
(elm)->field.le_prev = &LIST_NEXT((listelm), field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
|
|
||||||
QMD_LIST_CHECK_PREV(listelm, field); \
|
|
||||||
(elm)->field.le_prev = (listelm)->field.le_prev; \
|
|
||||||
LIST_NEXT((elm), field) = (listelm); \
|
|
||||||
*(listelm)->field.le_prev = (elm); \
|
|
||||||
(listelm)->field.le_prev = &LIST_NEXT((elm), field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define LIST_INSERT_HEAD(head, elm, field) do { \
|
|
||||||
QMD_LIST_CHECK_HEAD((head), field); \
|
|
||||||
if ((LIST_NEXT((elm), field) = LIST_FIRST((head))) != NULL) \
|
|
||||||
LIST_FIRST((head))->field.le_prev = &LIST_NEXT((elm), field);\
|
|
||||||
LIST_FIRST((head)) = (elm); \
|
|
||||||
(elm)->field.le_prev = &LIST_FIRST((head)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define LIST_NEXT(elm, field) ((elm)->field.le_next)
|
|
||||||
|
|
||||||
#define LIST_REMOVE(elm, field) do { \
|
|
||||||
QMD_LIST_CHECK_NEXT(elm, field); \
|
|
||||||
QMD_LIST_CHECK_PREV(elm, field); \
|
|
||||||
if (LIST_NEXT((elm), field) != NULL) \
|
|
||||||
LIST_NEXT((elm), field)->field.le_prev = \
|
|
||||||
(elm)->field.le_prev; \
|
|
||||||
*(elm)->field.le_prev = LIST_NEXT((elm), field); \
|
|
||||||
TRASHIT((elm)->field.le_next); \
|
|
||||||
TRASHIT((elm)->field.le_prev); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define LIST_SWAP(head1, head2, type, field) do { \
|
|
||||||
struct type *swap_tmp = LIST_FIRST((head1)); \
|
|
||||||
LIST_FIRST((head1)) = LIST_FIRST((head2)); \
|
|
||||||
LIST_FIRST((head2)) = swap_tmp; \
|
|
||||||
if ((swap_tmp = LIST_FIRST((head1))) != NULL) \
|
|
||||||
swap_tmp->field.le_prev = &LIST_FIRST((head1)); \
|
|
||||||
if ((swap_tmp = LIST_FIRST((head2))) != NULL) \
|
|
||||||
swap_tmp->field.le_prev = &LIST_FIRST((head2)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Tail queue declarations.
|
|
||||||
*/
|
|
||||||
#define TAILQ_HEAD(name, type) \
|
|
||||||
struct name { \
|
|
||||||
struct type *tqh_first; /* first element */ \
|
|
||||||
struct type **tqh_last; /* addr of last next element */ \
|
|
||||||
TRACEBUF \
|
|
||||||
}
|
|
||||||
|
|
||||||
#define TAILQ_HEAD_INITIALIZER(head) \
|
|
||||||
{ NULL, &(head).tqh_first }
|
|
||||||
|
|
||||||
#define TAILQ_ENTRY(type) \
|
|
||||||
struct { \
|
|
||||||
struct type *tqe_next; /* next element */ \
|
|
||||||
struct type **tqe_prev; /* address of previous next element */ \
|
|
||||||
TRACEBUF \
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Tail queue functions.
|
|
||||||
*/
|
|
||||||
#if (defined(_KERNEL) && defined(INVARIANTS))
|
|
||||||
#define QMD_TAILQ_CHECK_HEAD(head, field) do { \
|
|
||||||
if (!TAILQ_EMPTY(head) && \
|
|
||||||
TAILQ_FIRST((head))->field.tqe_prev != \
|
|
||||||
&TAILQ_FIRST((head))) \
|
|
||||||
panic("Bad tailq head %p first->prev != head", (head)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define QMD_TAILQ_CHECK_TAIL(head, field) do { \
|
|
||||||
if (*(head)->tqh_last != NULL) \
|
|
||||||
panic("Bad tailq NEXT(%p->tqh_last) != NULL", (head)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define QMD_TAILQ_CHECK_NEXT(elm, field) do { \
|
|
||||||
if (TAILQ_NEXT((elm), field) != NULL && \
|
|
||||||
TAILQ_NEXT((elm), field)->field.tqe_prev != \
|
|
||||||
&((elm)->field.tqe_next)) \
|
|
||||||
panic("Bad link elm %p next->prev != elm", (elm)); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define QMD_TAILQ_CHECK_PREV(elm, field) do { \
|
|
||||||
if (*(elm)->field.tqe_prev != (elm)) \
|
|
||||||
panic("Bad link elm %p prev->next != elm", (elm)); \
|
|
||||||
} while (0)
|
|
||||||
#else
|
|
||||||
#define QMD_TAILQ_CHECK_HEAD(head, field)
|
|
||||||
#define QMD_TAILQ_CHECK_TAIL(head, headname)
|
|
||||||
#define QMD_TAILQ_CHECK_NEXT(elm, field)
|
|
||||||
#define QMD_TAILQ_CHECK_PREV(elm, field)
|
|
||||||
#endif /* (_KERNEL && INVARIANTS) */
|
|
||||||
|
|
||||||
#define TAILQ_CONCAT(head1, head2, field) do { \
|
|
||||||
if (!TAILQ_EMPTY(head2)) { \
|
|
||||||
*(head1)->tqh_last = (head2)->tqh_first; \
|
|
||||||
(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
|
|
||||||
(head1)->tqh_last = (head2)->tqh_last; \
|
|
||||||
TAILQ_INIT((head2)); \
|
|
||||||
QMD_TRACE_HEAD(head1); \
|
|
||||||
QMD_TRACE_HEAD(head2); \
|
|
||||||
} \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
|
|
||||||
|
|
||||||
#define TAILQ_FIRST(head) ((head)->tqh_first)
|
|
||||||
|
|
||||||
#define TAILQ_FOREACH(var, head, field) \
|
|
||||||
for ((var) = TAILQ_FIRST((head)); \
|
|
||||||
(var); \
|
|
||||||
(var) = TAILQ_NEXT((var), field))
|
|
||||||
|
|
||||||
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
|
|
||||||
for ((var) = TAILQ_FIRST((head)); \
|
|
||||||
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
|
|
||||||
(var) = (tvar))
|
|
||||||
|
|
||||||
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
|
|
||||||
for ((var) = TAILQ_LAST((head), headname); \
|
|
||||||
(var); \
|
|
||||||
(var) = TAILQ_PREV((var), headname, field))
|
|
||||||
|
|
||||||
#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
|
|
||||||
for ((var) = TAILQ_LAST((head), headname); \
|
|
||||||
(var) && ((tvar) = TAILQ_PREV((var), headname, field), 1); \
|
|
||||||
(var) = (tvar))
|
|
||||||
|
|
||||||
#define TAILQ_INIT(head) do { \
|
|
||||||
TAILQ_FIRST((head)) = NULL; \
|
|
||||||
(head)->tqh_last = &TAILQ_FIRST((head)); \
|
|
||||||
QMD_TRACE_HEAD(head); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
|
||||||
QMD_TAILQ_CHECK_NEXT(listelm, field); \
|
|
||||||
if ((TAILQ_NEXT((elm), field) = TAILQ_NEXT((listelm), field)) != NULL)\
|
|
||||||
TAILQ_NEXT((elm), field)->field.tqe_prev = \
|
|
||||||
&TAILQ_NEXT((elm), field); \
|
|
||||||
else { \
|
|
||||||
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
|
|
||||||
QMD_TRACE_HEAD(head); \
|
|
||||||
} \
|
|
||||||
TAILQ_NEXT((listelm), field) = (elm); \
|
|
||||||
(elm)->field.tqe_prev = &TAILQ_NEXT((listelm), field); \
|
|
||||||
QMD_TRACE_ELEM(&(elm)->field); \
|
|
||||||
QMD_TRACE_ELEM(&listelm->field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
|
|
||||||
QMD_TAILQ_CHECK_PREV(listelm, field); \
|
|
||||||
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
|
|
||||||
TAILQ_NEXT((elm), field) = (listelm); \
|
|
||||||
*(listelm)->field.tqe_prev = (elm); \
|
|
||||||
(listelm)->field.tqe_prev = &TAILQ_NEXT((elm), field); \
|
|
||||||
QMD_TRACE_ELEM(&(elm)->field); \
|
|
||||||
QMD_TRACE_ELEM(&listelm->field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
|
|
||||||
QMD_TAILQ_CHECK_HEAD(head, field); \
|
|
||||||
if ((TAILQ_NEXT((elm), field) = TAILQ_FIRST((head))) != NULL) \
|
|
||||||
TAILQ_FIRST((head))->field.tqe_prev = \
|
|
||||||
&TAILQ_NEXT((elm), field); \
|
|
||||||
else \
|
|
||||||
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
|
|
||||||
TAILQ_FIRST((head)) = (elm); \
|
|
||||||
(elm)->field.tqe_prev = &TAILQ_FIRST((head)); \
|
|
||||||
QMD_TRACE_HEAD(head); \
|
|
||||||
QMD_TRACE_ELEM(&(elm)->field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
|
|
||||||
QMD_TAILQ_CHECK_TAIL(head, field); \
|
|
||||||
TAILQ_NEXT((elm), field) = NULL; \
|
|
||||||
(elm)->field.tqe_prev = (head)->tqh_last; \
|
|
||||||
*(head)->tqh_last = (elm); \
|
|
||||||
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
|
|
||||||
QMD_TRACE_HEAD(head); \
|
|
||||||
QMD_TRACE_ELEM(&(elm)->field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_LAST(head, headname) \
|
|
||||||
(*(((struct headname *)((head)->tqh_last))->tqh_last))
|
|
||||||
|
|
||||||
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
|
|
||||||
|
|
||||||
#define TAILQ_PREV(elm, headname, field) \
|
|
||||||
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
|
|
||||||
|
|
||||||
#define TAILQ_REMOVE(head, elm, field) do { \
|
|
||||||
QMD_TAILQ_CHECK_NEXT(elm, field); \
|
|
||||||
QMD_TAILQ_CHECK_PREV(elm, field); \
|
|
||||||
if ((TAILQ_NEXT((elm), field)) != NULL) \
|
|
||||||
TAILQ_NEXT((elm), field)->field.tqe_prev = \
|
|
||||||
(elm)->field.tqe_prev; \
|
|
||||||
else { \
|
|
||||||
(head)->tqh_last = (elm)->field.tqe_prev; \
|
|
||||||
QMD_TRACE_HEAD(head); \
|
|
||||||
} \
|
|
||||||
*(elm)->field.tqe_prev = TAILQ_NEXT((elm), field); \
|
|
||||||
TRASHIT((elm)->field.tqe_next); \
|
|
||||||
TRASHIT((elm)->field.tqe_prev); \
|
|
||||||
QMD_TRACE_ELEM(&(elm)->field); \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#define TAILQ_SWAP(head1, head2, type, field) do { \
|
|
||||||
struct type *swap_first = (head1)->tqh_first; \
|
|
||||||
struct type **swap_last = (head1)->tqh_last; \
|
|
||||||
(head1)->tqh_first = (head2)->tqh_first; \
|
|
||||||
(head1)->tqh_last = (head2)->tqh_last; \
|
|
||||||
(head2)->tqh_first = swap_first; \
|
|
||||||
(head2)->tqh_last = swap_last; \
|
|
||||||
if ((swap_first = (head1)->tqh_first) != NULL) \
|
|
||||||
swap_first->field.tqe_prev = &(head1)->tqh_first; \
|
|
||||||
else \
|
|
||||||
(head1)->tqh_last = &(head1)->tqh_first; \
|
|
||||||
if ((swap_first = (head2)->tqh_first) != NULL) \
|
|
||||||
swap_first->field.tqe_prev = &(head2)->tqh_first; \
|
|
||||||
else \
|
|
||||||
(head2)->tqh_last = &(head2)->tqh_first; \
|
|
||||||
} while (0)
|
|
||||||
|
|
||||||
#endif /* !_SYS_QUEUE_H_ */
|
|
||||||
|
|||||||
622
include/bsd/sys/queue.h
Normal file
622
include/bsd/sys/queue.h
Normal file
@ -0,0 +1,622 @@
|
|||||||
|
/*-
|
||||||
|
* Copyright (c) 1991, 1993
|
||||||
|
* The Regents of the University of California. All rights reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
* 4. Neither the name of the University nor the names of its contributors
|
||||||
|
* may be used to endorse or promote products derived from this software
|
||||||
|
* without specific prior written permission.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
*
|
||||||
|
* @(#)queue.h 8.5 (Berkeley) 8/20/94
|
||||||
|
* $FreeBSD$
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _SYS_QUEUE_H_
|
||||||
|
#define _SYS_QUEUE_H_
|
||||||
|
|
||||||
|
#include <sys/cdefs.h>
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This file defines four types of data structures: singly-linked lists,
|
||||||
|
* singly-linked tail queues, lists and tail queues.
|
||||||
|
*
|
||||||
|
* A singly-linked list is headed by a single forward pointer. The elements
|
||||||
|
* are singly linked for minimum space and pointer manipulation overhead at
|
||||||
|
* the expense of O(n) removal for arbitrary elements. New elements can be
|
||||||
|
* added to the list after an existing element or at the head of the list.
|
||||||
|
* Elements being removed from the head of the list should use the explicit
|
||||||
|
* macro for this purpose for optimum efficiency. A singly-linked list may
|
||||||
|
* only be traversed in the forward direction. Singly-linked lists are ideal
|
||||||
|
* for applications with large datasets and few or no removals or for
|
||||||
|
* implementing a LIFO queue.
|
||||||
|
*
|
||||||
|
* A singly-linked tail queue is headed by a pair of pointers, one to the
|
||||||
|
* head of the list and the other to the tail of the list. The elements are
|
||||||
|
* singly linked for minimum space and pointer manipulation overhead at the
|
||||||
|
* expense of O(n) removal for arbitrary elements. New elements can be added
|
||||||
|
* to the list after an existing element, at the head of the list, or at the
|
||||||
|
* end of the list. Elements being removed from the head of the tail queue
|
||||||
|
* should use the explicit macro for this purpose for optimum efficiency.
|
||||||
|
* A singly-linked tail queue may only be traversed in the forward direction.
|
||||||
|
* Singly-linked tail queues are ideal for applications with large datasets
|
||||||
|
* and few or no removals or for implementing a FIFO queue.
|
||||||
|
*
|
||||||
|
* A list is headed by a single forward pointer (or an array of forward
|
||||||
|
* pointers for a hash table header). The elements are doubly linked
|
||||||
|
* so that an arbitrary element can be removed without a need to
|
||||||
|
* traverse the list. New elements can be added to the list before
|
||||||
|
* or after an existing element or at the head of the list. A list
|
||||||
|
* may only be traversed in the forward direction.
|
||||||
|
*
|
||||||
|
* A tail queue is headed by a pair of pointers, one to the head of the
|
||||||
|
* list and the other to the tail of the list. The elements are doubly
|
||||||
|
* linked so that an arbitrary element can be removed without a need to
|
||||||
|
* traverse the list. New elements can be added to the list before or
|
||||||
|
* after an existing element, at the head of the list, or at the end of
|
||||||
|
* the list. A tail queue may be traversed in either direction.
|
||||||
|
*
|
||||||
|
* For details on the use of these macros, see the queue(3) manual page.
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* SLIST LIST STAILQ TAILQ
|
||||||
|
* _HEAD + + + +
|
||||||
|
* _HEAD_INITIALIZER + + + +
|
||||||
|
* _ENTRY + + + +
|
||||||
|
* _INIT + + + +
|
||||||
|
* _EMPTY + + + +
|
||||||
|
* _FIRST + + + +
|
||||||
|
* _NEXT + + + +
|
||||||
|
* _PREV - - - +
|
||||||
|
* _LAST - - + +
|
||||||
|
* _FOREACH + + + +
|
||||||
|
* _FOREACH_SAFE + + + +
|
||||||
|
* _FOREACH_REVERSE - - - +
|
||||||
|
* _FOREACH_REVERSE_SAFE - - - +
|
||||||
|
* _INSERT_HEAD + + + +
|
||||||
|
* _INSERT_BEFORE - + - +
|
||||||
|
* _INSERT_AFTER + + + +
|
||||||
|
* _INSERT_TAIL - - + +
|
||||||
|
* _CONCAT - - + +
|
||||||
|
* _REMOVE_AFTER + - + -
|
||||||
|
* _REMOVE_HEAD + - + -
|
||||||
|
* _REMOVE + + + +
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
#ifdef QUEUE_MACRO_DEBUG
|
||||||
|
/* Store the last 2 places the queue element or head was altered */
|
||||||
|
struct qm_trace {
|
||||||
|
char * lastfile;
|
||||||
|
int lastline;
|
||||||
|
char * prevfile;
|
||||||
|
int prevline;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define TRACEBUF struct qm_trace trace;
|
||||||
|
#define TRASHIT(x) do {(x) = (void *)-1;} while (0)
|
||||||
|
|
||||||
|
#define QMD_TRACE_HEAD(head) do { \
|
||||||
|
(head)->trace.prevline = (head)->trace.lastline; \
|
||||||
|
(head)->trace.prevfile = (head)->trace.lastfile; \
|
||||||
|
(head)->trace.lastline = __LINE__; \
|
||||||
|
(head)->trace.lastfile = __FILE__; \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define QMD_TRACE_ELEM(elem) do { \
|
||||||
|
(elem)->trace.prevline = (elem)->trace.lastline; \
|
||||||
|
(elem)->trace.prevfile = (elem)->trace.lastfile; \
|
||||||
|
(elem)->trace.lastline = __LINE__; \
|
||||||
|
(elem)->trace.lastfile = __FILE__; \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#else
|
||||||
|
#define QMD_TRACE_ELEM(elem)
|
||||||
|
#define QMD_TRACE_HEAD(head)
|
||||||
|
#define TRACEBUF
|
||||||
|
#define TRASHIT(x)
|
||||||
|
#endif /* QUEUE_MACRO_DEBUG */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Singly-linked List declarations.
|
||||||
|
*/
|
||||||
|
#define SLIST_HEAD(name, type) \
|
||||||
|
struct name { \
|
||||||
|
struct type *slh_first; /* first element */ \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define SLIST_HEAD_INITIALIZER(head) \
|
||||||
|
{ NULL }
|
||||||
|
|
||||||
|
#define SLIST_ENTRY(type) \
|
||||||
|
struct { \
|
||||||
|
struct type *sle_next; /* next element */ \
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Singly-linked List functions.
|
||||||
|
*/
|
||||||
|
#define SLIST_EMPTY(head) ((head)->slh_first == NULL)
|
||||||
|
|
||||||
|
#define SLIST_FIRST(head) ((head)->slh_first)
|
||||||
|
|
||||||
|
#define SLIST_FOREACH(var, head, field) \
|
||||||
|
for ((var) = SLIST_FIRST((head)); \
|
||||||
|
(var); \
|
||||||
|
(var) = SLIST_NEXT((var), field))
|
||||||
|
|
||||||
|
#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
|
||||||
|
for ((var) = SLIST_FIRST((head)); \
|
||||||
|
(var) && ((tvar) = SLIST_NEXT((var), field), 1); \
|
||||||
|
(var) = (tvar))
|
||||||
|
|
||||||
|
#define SLIST_FOREACH_PREVPTR(var, varp, head, field) \
|
||||||
|
for ((varp) = &SLIST_FIRST((head)); \
|
||||||
|
((var) = *(varp)) != NULL; \
|
||||||
|
(varp) = &SLIST_NEXT((var), field))
|
||||||
|
|
||||||
|
#define SLIST_INIT(head) do { \
|
||||||
|
SLIST_FIRST((head)) = NULL; \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
|
||||||
|
SLIST_NEXT((elm), field) = SLIST_NEXT((slistelm), field); \
|
||||||
|
SLIST_NEXT((slistelm), field) = (elm); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define SLIST_INSERT_HEAD(head, elm, field) do { \
|
||||||
|
SLIST_NEXT((elm), field) = SLIST_FIRST((head)); \
|
||||||
|
SLIST_FIRST((head)) = (elm); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
|
||||||
|
|
||||||
|
#define SLIST_REMOVE(head, elm, type, field) do { \
|
||||||
|
if (SLIST_FIRST((head)) == (elm)) { \
|
||||||
|
SLIST_REMOVE_HEAD((head), field); \
|
||||||
|
} \
|
||||||
|
else { \
|
||||||
|
struct type *curelm = SLIST_FIRST((head)); \
|
||||||
|
while (SLIST_NEXT(curelm, field) != (elm)) \
|
||||||
|
curelm = SLIST_NEXT(curelm, field); \
|
||||||
|
SLIST_REMOVE_AFTER(curelm, field); \
|
||||||
|
} \
|
||||||
|
TRASHIT((elm)->field.sle_next); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define SLIST_REMOVE_AFTER(elm, field) do { \
|
||||||
|
SLIST_NEXT(elm, field) = \
|
||||||
|
SLIST_NEXT(SLIST_NEXT(elm, field), field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define SLIST_REMOVE_HEAD(head, field) do { \
|
||||||
|
SLIST_FIRST((head)) = SLIST_NEXT(SLIST_FIRST((head)), field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Singly-linked Tail queue declarations.
|
||||||
|
*/
|
||||||
|
#define STAILQ_HEAD(name, type) \
|
||||||
|
struct name { \
|
||||||
|
struct type *stqh_first;/* first element */ \
|
||||||
|
struct type **stqh_last;/* addr of last next element */ \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define STAILQ_HEAD_INITIALIZER(head) \
|
||||||
|
{ NULL, &(head).stqh_first }
|
||||||
|
|
||||||
|
#define STAILQ_ENTRY(type) \
|
||||||
|
struct { \
|
||||||
|
struct type *stqe_next; /* next element */ \
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Singly-linked Tail queue functions.
|
||||||
|
*/
|
||||||
|
#define STAILQ_CONCAT(head1, head2) do { \
|
||||||
|
if (!STAILQ_EMPTY((head2))) { \
|
||||||
|
*(head1)->stqh_last = (head2)->stqh_first; \
|
||||||
|
(head1)->stqh_last = (head2)->stqh_last; \
|
||||||
|
STAILQ_INIT((head2)); \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
|
||||||
|
|
||||||
|
#define STAILQ_FIRST(head) ((head)->stqh_first)
|
||||||
|
|
||||||
|
#define STAILQ_FOREACH(var, head, field) \
|
||||||
|
for((var) = STAILQ_FIRST((head)); \
|
||||||
|
(var); \
|
||||||
|
(var) = STAILQ_NEXT((var), field))
|
||||||
|
|
||||||
|
|
||||||
|
#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||||
|
for ((var) = STAILQ_FIRST((head)); \
|
||||||
|
(var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
|
||||||
|
(var) = (tvar))
|
||||||
|
|
||||||
|
#define STAILQ_INIT(head) do { \
|
||||||
|
STAILQ_FIRST((head)) = NULL; \
|
||||||
|
(head)->stqh_last = &STAILQ_FIRST((head)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_INSERT_AFTER(head, tqelm, elm, field) do { \
|
||||||
|
if ((STAILQ_NEXT((elm), field) = STAILQ_NEXT((tqelm), field)) == NULL)\
|
||||||
|
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
|
||||||
|
STAILQ_NEXT((tqelm), field) = (elm); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_INSERT_HEAD(head, elm, field) do { \
|
||||||
|
if ((STAILQ_NEXT((elm), field) = STAILQ_FIRST((head))) == NULL) \
|
||||||
|
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
|
||||||
|
STAILQ_FIRST((head)) = (elm); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_INSERT_TAIL(head, elm, field) do { \
|
||||||
|
STAILQ_NEXT((elm), field) = NULL; \
|
||||||
|
*(head)->stqh_last = (elm); \
|
||||||
|
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_LAST(head, type, field) \
|
||||||
|
(STAILQ_EMPTY((head)) ? \
|
||||||
|
NULL : \
|
||||||
|
((struct type *)(void *) \
|
||||||
|
((char *)((head)->stqh_last) - __offsetof(struct type, field))))
|
||||||
|
|
||||||
|
#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
|
||||||
|
|
||||||
|
#define STAILQ_REMOVE(head, elm, type, field) do { \
|
||||||
|
if (STAILQ_FIRST((head)) == (elm)) { \
|
||||||
|
STAILQ_REMOVE_HEAD((head), field); \
|
||||||
|
} \
|
||||||
|
else { \
|
||||||
|
struct type *curelm = STAILQ_FIRST((head)); \
|
||||||
|
while (STAILQ_NEXT(curelm, field) != (elm)) \
|
||||||
|
curelm = STAILQ_NEXT(curelm, field); \
|
||||||
|
STAILQ_REMOVE_AFTER(head, curelm, field); \
|
||||||
|
} \
|
||||||
|
TRASHIT((elm)->field.stqe_next); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_REMOVE_HEAD(head, field) do { \
|
||||||
|
if ((STAILQ_FIRST((head)) = \
|
||||||
|
STAILQ_NEXT(STAILQ_FIRST((head)), field)) == NULL) \
|
||||||
|
(head)->stqh_last = &STAILQ_FIRST((head)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_REMOVE_AFTER(head, elm, field) do { \
|
||||||
|
if ((STAILQ_NEXT(elm, field) = \
|
||||||
|
STAILQ_NEXT(STAILQ_NEXT(elm, field), field)) == NULL) \
|
||||||
|
(head)->stqh_last = &STAILQ_NEXT((elm), field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define STAILQ_SWAP(head1, head2, type) do { \
|
||||||
|
struct type *swap_first = STAILQ_FIRST(head1); \
|
||||||
|
struct type **swap_last = (head1)->stqh_last; \
|
||||||
|
STAILQ_FIRST(head1) = STAILQ_FIRST(head2); \
|
||||||
|
(head1)->stqh_last = (head2)->stqh_last; \
|
||||||
|
STAILQ_FIRST(head2) = swap_first; \
|
||||||
|
(head2)->stqh_last = swap_last; \
|
||||||
|
if (STAILQ_EMPTY(head1)) \
|
||||||
|
(head1)->stqh_last = &STAILQ_FIRST(head1); \
|
||||||
|
if (STAILQ_EMPTY(head2)) \
|
||||||
|
(head2)->stqh_last = &STAILQ_FIRST(head2); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* List declarations.
|
||||||
|
*/
|
||||||
|
#define LIST_HEAD(name, type) \
|
||||||
|
struct name { \
|
||||||
|
struct type *lh_first; /* first element */ \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define LIST_HEAD_INITIALIZER(head) \
|
||||||
|
{ NULL }
|
||||||
|
|
||||||
|
#define LIST_ENTRY(type) \
|
||||||
|
struct { \
|
||||||
|
struct type *le_next; /* next element */ \
|
||||||
|
struct type **le_prev; /* address of previous next element */ \
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* List functions.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#if (defined(_KERNEL) && defined(INVARIANTS))
|
||||||
|
#define QMD_LIST_CHECK_HEAD(head, field) do { \
|
||||||
|
if (LIST_FIRST((head)) != NULL && \
|
||||||
|
LIST_FIRST((head))->field.le_prev != \
|
||||||
|
&LIST_FIRST((head))) \
|
||||||
|
panic("Bad list head %p first->prev != head", (head)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define QMD_LIST_CHECK_NEXT(elm, field) do { \
|
||||||
|
if (LIST_NEXT((elm), field) != NULL && \
|
||||||
|
LIST_NEXT((elm), field)->field.le_prev != \
|
||||||
|
&((elm)->field.le_next)) \
|
||||||
|
panic("Bad link elm %p next->prev != elm", (elm)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define QMD_LIST_CHECK_PREV(elm, field) do { \
|
||||||
|
if (*(elm)->field.le_prev != (elm)) \
|
||||||
|
panic("Bad link elm %p prev->next != elm", (elm)); \
|
||||||
|
} while (0)
|
||||||
|
#else
|
||||||
|
#define QMD_LIST_CHECK_HEAD(head, field)
|
||||||
|
#define QMD_LIST_CHECK_NEXT(elm, field)
|
||||||
|
#define QMD_LIST_CHECK_PREV(elm, field)
|
||||||
|
#endif /* (_KERNEL && INVARIANTS) */
|
||||||
|
|
||||||
|
#define LIST_EMPTY(head) ((head)->lh_first == NULL)
|
||||||
|
|
||||||
|
#define LIST_FIRST(head) ((head)->lh_first)
|
||||||
|
|
||||||
|
#define LIST_FOREACH(var, head, field) \
|
||||||
|
for ((var) = LIST_FIRST((head)); \
|
||||||
|
(var); \
|
||||||
|
(var) = LIST_NEXT((var), field))
|
||||||
|
|
||||||
|
#define LIST_FOREACH_SAFE(var, head, field, tvar) \
|
||||||
|
for ((var) = LIST_FIRST((head)); \
|
||||||
|
(var) && ((tvar) = LIST_NEXT((var), field), 1); \
|
||||||
|
(var) = (tvar))
|
||||||
|
|
||||||
|
#define LIST_INIT(head) do { \
|
||||||
|
LIST_FIRST((head)) = NULL; \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define LIST_INSERT_AFTER(listelm, elm, field) do { \
|
||||||
|
QMD_LIST_CHECK_NEXT(listelm, field); \
|
||||||
|
if ((LIST_NEXT((elm), field) = LIST_NEXT((listelm), field)) != NULL)\
|
||||||
|
LIST_NEXT((listelm), field)->field.le_prev = \
|
||||||
|
&LIST_NEXT((elm), field); \
|
||||||
|
LIST_NEXT((listelm), field) = (elm); \
|
||||||
|
(elm)->field.le_prev = &LIST_NEXT((listelm), field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
|
||||||
|
QMD_LIST_CHECK_PREV(listelm, field); \
|
||||||
|
(elm)->field.le_prev = (listelm)->field.le_prev; \
|
||||||
|
LIST_NEXT((elm), field) = (listelm); \
|
||||||
|
*(listelm)->field.le_prev = (elm); \
|
||||||
|
(listelm)->field.le_prev = &LIST_NEXT((elm), field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define LIST_INSERT_HEAD(head, elm, field) do { \
|
||||||
|
QMD_LIST_CHECK_HEAD((head), field); \
|
||||||
|
if ((LIST_NEXT((elm), field) = LIST_FIRST((head))) != NULL) \
|
||||||
|
LIST_FIRST((head))->field.le_prev = &LIST_NEXT((elm), field);\
|
||||||
|
LIST_FIRST((head)) = (elm); \
|
||||||
|
(elm)->field.le_prev = &LIST_FIRST((head)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define LIST_NEXT(elm, field) ((elm)->field.le_next)
|
||||||
|
|
||||||
|
#define LIST_REMOVE(elm, field) do { \
|
||||||
|
QMD_LIST_CHECK_NEXT(elm, field); \
|
||||||
|
QMD_LIST_CHECK_PREV(elm, field); \
|
||||||
|
if (LIST_NEXT((elm), field) != NULL) \
|
||||||
|
LIST_NEXT((elm), field)->field.le_prev = \
|
||||||
|
(elm)->field.le_prev; \
|
||||||
|
*(elm)->field.le_prev = LIST_NEXT((elm), field); \
|
||||||
|
TRASHIT((elm)->field.le_next); \
|
||||||
|
TRASHIT((elm)->field.le_prev); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define LIST_SWAP(head1, head2, type, field) do { \
|
||||||
|
struct type *swap_tmp = LIST_FIRST((head1)); \
|
||||||
|
LIST_FIRST((head1)) = LIST_FIRST((head2)); \
|
||||||
|
LIST_FIRST((head2)) = swap_tmp; \
|
||||||
|
if ((swap_tmp = LIST_FIRST((head1))) != NULL) \
|
||||||
|
swap_tmp->field.le_prev = &LIST_FIRST((head1)); \
|
||||||
|
if ((swap_tmp = LIST_FIRST((head2))) != NULL) \
|
||||||
|
swap_tmp->field.le_prev = &LIST_FIRST((head2)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Tail queue declarations.
|
||||||
|
*/
|
||||||
|
#define TAILQ_HEAD(name, type) \
|
||||||
|
struct name { \
|
||||||
|
struct type *tqh_first; /* first element */ \
|
||||||
|
struct type **tqh_last; /* addr of last next element */ \
|
||||||
|
TRACEBUF \
|
||||||
|
}
|
||||||
|
|
||||||
|
#define TAILQ_HEAD_INITIALIZER(head) \
|
||||||
|
{ NULL, &(head).tqh_first }
|
||||||
|
|
||||||
|
#define TAILQ_ENTRY(type) \
|
||||||
|
struct { \
|
||||||
|
struct type *tqe_next; /* next element */ \
|
||||||
|
struct type **tqe_prev; /* address of previous next element */ \
|
||||||
|
TRACEBUF \
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Tail queue functions.
|
||||||
|
*/
|
||||||
|
#if (defined(_KERNEL) && defined(INVARIANTS))
|
||||||
|
#define QMD_TAILQ_CHECK_HEAD(head, field) do { \
|
||||||
|
if (!TAILQ_EMPTY(head) && \
|
||||||
|
TAILQ_FIRST((head))->field.tqe_prev != \
|
||||||
|
&TAILQ_FIRST((head))) \
|
||||||
|
panic("Bad tailq head %p first->prev != head", (head)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define QMD_TAILQ_CHECK_TAIL(head, field) do { \
|
||||||
|
if (*(head)->tqh_last != NULL) \
|
||||||
|
panic("Bad tailq NEXT(%p->tqh_last) != NULL", (head)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define QMD_TAILQ_CHECK_NEXT(elm, field) do { \
|
||||||
|
if (TAILQ_NEXT((elm), field) != NULL && \
|
||||||
|
TAILQ_NEXT((elm), field)->field.tqe_prev != \
|
||||||
|
&((elm)->field.tqe_next)) \
|
||||||
|
panic("Bad link elm %p next->prev != elm", (elm)); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define QMD_TAILQ_CHECK_PREV(elm, field) do { \
|
||||||
|
if (*(elm)->field.tqe_prev != (elm)) \
|
||||||
|
panic("Bad link elm %p prev->next != elm", (elm)); \
|
||||||
|
} while (0)
|
||||||
|
#else
|
||||||
|
#define QMD_TAILQ_CHECK_HEAD(head, field)
|
||||||
|
#define QMD_TAILQ_CHECK_TAIL(head, headname)
|
||||||
|
#define QMD_TAILQ_CHECK_NEXT(elm, field)
|
||||||
|
#define QMD_TAILQ_CHECK_PREV(elm, field)
|
||||||
|
#endif /* (_KERNEL && INVARIANTS) */
|
||||||
|
|
||||||
|
#define TAILQ_CONCAT(head1, head2, field) do { \
|
||||||
|
if (!TAILQ_EMPTY(head2)) { \
|
||||||
|
*(head1)->tqh_last = (head2)->tqh_first; \
|
||||||
|
(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
|
||||||
|
(head1)->tqh_last = (head2)->tqh_last; \
|
||||||
|
TAILQ_INIT((head2)); \
|
||||||
|
QMD_TRACE_HEAD(head1); \
|
||||||
|
QMD_TRACE_HEAD(head2); \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
|
||||||
|
|
||||||
|
#define TAILQ_FIRST(head) ((head)->tqh_first)
|
||||||
|
|
||||||
|
#define TAILQ_FOREACH(var, head, field) \
|
||||||
|
for ((var) = TAILQ_FIRST((head)); \
|
||||||
|
(var); \
|
||||||
|
(var) = TAILQ_NEXT((var), field))
|
||||||
|
|
||||||
|
#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
|
||||||
|
for ((var) = TAILQ_FIRST((head)); \
|
||||||
|
(var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
|
||||||
|
(var) = (tvar))
|
||||||
|
|
||||||
|
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
|
||||||
|
for ((var) = TAILQ_LAST((head), headname); \
|
||||||
|
(var); \
|
||||||
|
(var) = TAILQ_PREV((var), headname, field))
|
||||||
|
|
||||||
|
#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
|
||||||
|
for ((var) = TAILQ_LAST((head), headname); \
|
||||||
|
(var) && ((tvar) = TAILQ_PREV((var), headname, field), 1); \
|
||||||
|
(var) = (tvar))
|
||||||
|
|
||||||
|
#define TAILQ_INIT(head) do { \
|
||||||
|
TAILQ_FIRST((head)) = NULL; \
|
||||||
|
(head)->tqh_last = &TAILQ_FIRST((head)); \
|
||||||
|
QMD_TRACE_HEAD(head); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||||
|
QMD_TAILQ_CHECK_NEXT(listelm, field); \
|
||||||
|
if ((TAILQ_NEXT((elm), field) = TAILQ_NEXT((listelm), field)) != NULL)\
|
||||||
|
TAILQ_NEXT((elm), field)->field.tqe_prev = \
|
||||||
|
&TAILQ_NEXT((elm), field); \
|
||||||
|
else { \
|
||||||
|
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
|
||||||
|
QMD_TRACE_HEAD(head); \
|
||||||
|
} \
|
||||||
|
TAILQ_NEXT((listelm), field) = (elm); \
|
||||||
|
(elm)->field.tqe_prev = &TAILQ_NEXT((listelm), field); \
|
||||||
|
QMD_TRACE_ELEM(&(elm)->field); \
|
||||||
|
QMD_TRACE_ELEM(&listelm->field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
|
||||||
|
QMD_TAILQ_CHECK_PREV(listelm, field); \
|
||||||
|
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
|
||||||
|
TAILQ_NEXT((elm), field) = (listelm); \
|
||||||
|
*(listelm)->field.tqe_prev = (elm); \
|
||||||
|
(listelm)->field.tqe_prev = &TAILQ_NEXT((elm), field); \
|
||||||
|
QMD_TRACE_ELEM(&(elm)->field); \
|
||||||
|
QMD_TRACE_ELEM(&listelm->field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
|
||||||
|
QMD_TAILQ_CHECK_HEAD(head, field); \
|
||||||
|
if ((TAILQ_NEXT((elm), field) = TAILQ_FIRST((head))) != NULL) \
|
||||||
|
TAILQ_FIRST((head))->field.tqe_prev = \
|
||||||
|
&TAILQ_NEXT((elm), field); \
|
||||||
|
else \
|
||||||
|
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
|
||||||
|
TAILQ_FIRST((head)) = (elm); \
|
||||||
|
(elm)->field.tqe_prev = &TAILQ_FIRST((head)); \
|
||||||
|
QMD_TRACE_HEAD(head); \
|
||||||
|
QMD_TRACE_ELEM(&(elm)->field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
|
||||||
|
QMD_TAILQ_CHECK_TAIL(head, field); \
|
||||||
|
TAILQ_NEXT((elm), field) = NULL; \
|
||||||
|
(elm)->field.tqe_prev = (head)->tqh_last; \
|
||||||
|
*(head)->tqh_last = (elm); \
|
||||||
|
(head)->tqh_last = &TAILQ_NEXT((elm), field); \
|
||||||
|
QMD_TRACE_HEAD(head); \
|
||||||
|
QMD_TRACE_ELEM(&(elm)->field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_LAST(head, headname) \
|
||||||
|
(*(((struct headname *)((head)->tqh_last))->tqh_last))
|
||||||
|
|
||||||
|
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
|
||||||
|
|
||||||
|
#define TAILQ_PREV(elm, headname, field) \
|
||||||
|
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
|
||||||
|
|
||||||
|
#define TAILQ_REMOVE(head, elm, field) do { \
|
||||||
|
QMD_TAILQ_CHECK_NEXT(elm, field); \
|
||||||
|
QMD_TAILQ_CHECK_PREV(elm, field); \
|
||||||
|
if ((TAILQ_NEXT((elm), field)) != NULL) \
|
||||||
|
TAILQ_NEXT((elm), field)->field.tqe_prev = \
|
||||||
|
(elm)->field.tqe_prev; \
|
||||||
|
else { \
|
||||||
|
(head)->tqh_last = (elm)->field.tqe_prev; \
|
||||||
|
QMD_TRACE_HEAD(head); \
|
||||||
|
} \
|
||||||
|
*(elm)->field.tqe_prev = TAILQ_NEXT((elm), field); \
|
||||||
|
TRASHIT((elm)->field.tqe_next); \
|
||||||
|
TRASHIT((elm)->field.tqe_prev); \
|
||||||
|
QMD_TRACE_ELEM(&(elm)->field); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define TAILQ_SWAP(head1, head2, type, field) do { \
|
||||||
|
struct type *swap_first = (head1)->tqh_first; \
|
||||||
|
struct type **swap_last = (head1)->tqh_last; \
|
||||||
|
(head1)->tqh_first = (head2)->tqh_first; \
|
||||||
|
(head1)->tqh_last = (head2)->tqh_last; \
|
||||||
|
(head2)->tqh_first = swap_first; \
|
||||||
|
(head2)->tqh_last = swap_last; \
|
||||||
|
if ((swap_first = (head1)->tqh_first) != NULL) \
|
||||||
|
swap_first->field.tqe_prev = &(head1)->tqh_first; \
|
||||||
|
else \
|
||||||
|
(head1)->tqh_last = &(head1)->tqh_first; \
|
||||||
|
if ((swap_first = (head2)->tqh_first) != NULL) \
|
||||||
|
swap_first->field.tqe_prev = &(head2)->tqh_first; \
|
||||||
|
else \
|
||||||
|
(head2)->tqh_last = &(head2)->tqh_first; \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#endif /* !_SYS_QUEUE_H_ */
|
||||||
Loading…
x
Reference in New Issue
Block a user