--- /dev/null
+From 7c337ac4f6fa260e3c25820f780d24329d85e027 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?J=C3=B6rg=20Krause?= <joerg.krause@embedded.rocks>
+Date: Tue, 5 May 2015 17:06:03 +0200
+Subject: [PATCH 12/16] Use local bsdqueue.h
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Not all systems provide a sys/queue.h implementation. For example the the musl
+C library does not and will not have it [1].
+
+sys/queue.h first appeared in 4.4BSD and is used in all 4.4BSD variants. Note
+that glibc' sys/queue.h is a patched version of this 4.4BDS header (adds
+STAILQ_CONCAT and TAILQ_CONCAT).
+
+There exists several implementations of sys/queue.h. Lets use the version from
+the NetBSD project [2] and provide it as a local header file "bsdqueue.h"
+
+[1] http://wiki.musl-libc.org/wiki/FAQ#Q:_why_is_sys.2Fqueue.h_not_included_.3F
+[2] http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/queue.h?rev=1.68
+
+Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
+---
+ src/clnt_bcast.c | 2 +-
+ tirpc/bsdqueue.h | 846 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 847 insertions(+), 1 deletion(-)
+ create mode 100644 tirpc/bsdqueue.h
+
+diff --git a/src/clnt_bcast.c b/src/clnt_bcast.c
+index 262b2ab..3ed8457 100644
+--- a/src/clnt_bcast.c
++++ b/src/clnt_bcast.c
+@@ -40,7 +40,6 @@
+ */
+ #include <sys/socket.h>
+ #include <sys/types.h>
+-#include <sys/queue.h>
+
+ #include <net/if.h>
+ #include <netinet/in.h>
+@@ -64,6 +63,7 @@
+ #include <err.h>
+ #include <string.h>
+
++#include "bsdqueue.h"
+ #include "rpc_com.h"
+
+ #define MAXBCAST 20 /* Max no of broadcasting transports */
+diff --git a/tirpc/bsdqueue.h b/tirpc/bsdqueue.h
+new file mode 100644
+index 0000000..99d01a5
+--- /dev/null
++++ b/tirpc/bsdqueue.h
+@@ -0,0 +1,846 @@
++/* $NetBSD: queue.h,v 1.68 2014/11/19 08:10:01 uebayasi Exp $ */
++
++/*
++ * Copyright (c) 1991, 1993
++ * The Regents of the University of California. All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ * 3. Neither the name of the University nor the names of its contributors
++ * may be used to endorse or promote products derived from this software
++ * without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
++ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
++ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
++ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
++ * SUCH DAMAGE.
++ *
++ * @(#)queue.h 8.5 (Berkeley) 8/20/94
++ */
++
++#ifndef _SYS_QUEUE_H_
++#define _SYS_QUEUE_H_
++
++/*
++ * This file defines five types of data structures: singly-linked lists,
++ * lists, simple queues, tail queues, and circular queues.
++ *
++ * A singly-linked list is headed by a single forward pointer. The
++ * elements are singly linked for minimum space and pointer manipulation
++ * overhead at the expense of O(n) removal for arbitrary elements. New
++ * elements can be added to the list after an existing element or at the
++ * head of the list. Elements being removed from the head of the list
++ * should use the explicit macro for this purpose for optimum
++ * efficiency. A singly-linked list may only be traversed in the forward
++ * direction. Singly-linked lists are ideal for applications with large
++ * datasets and few or no removals or for implementing a LIFO queue.
++ *
++ * A list is headed by a single forward pointer (or an array of forward
++ * pointers for a hash table header). The elements are doubly linked
++ * so that an arbitrary element can be removed without a need to
++ * traverse the list. New elements can be added to the list before
++ * or after an existing element or at the head of the list. A list
++ * may only be traversed in the forward direction.
++ *
++ * A simple queue is headed by a pair of pointers, one the head of the
++ * list and the other to the tail of the list. The elements are singly
++ * linked to save space, so elements can only be removed from the
++ * head of the list. New elements can be added to the list after
++ * an existing element, at the head of the list, or at the end of the
++ * list. A simple queue may only be traversed in the forward direction.
++ *
++ * A tail queue is headed by a pair of pointers, one to the head of the
++ * list and the other to the tail of the list. The elements are doubly
++ * linked so that an arbitrary element can be removed without a need to
++ * traverse the list. New elements can be added to the list before or
++ * after an existing element, at the head of the list, or at the end of
++ * the list. A tail queue may be traversed in either direction.
++ *
++ * A circle queue is headed by a pair of pointers, one to the head of the
++ * list and the other to the tail of the list. The elements are doubly
++ * linked so that an arbitrary element can be removed without a need to
++ * traverse the list. New elements can be added to the list before or after
++ * an existing element, at the head of the list, or at the end of the list.
++ * A circle queue may be traversed in either direction, but has a more
++ * complex end of list detection.
++ *
++ * For details on the use of these macros, see the queue(3) manual page.
++ */
++
++/*
++ * Include the definition of NULL only on NetBSD because sys/null.h
++ * is not available elsewhere. This conditional makes the header
++ * portable and it can simply be dropped verbatim into any system.
++ * The caveat is that on other systems some other header
++ * must provide NULL before the macros can be used.
++ */
++#ifdef __NetBSD__
++#include <sys/null.h>
++#endif
++
++#if defined(QUEUEDEBUG)
++# if defined(_KERNEL)
++# define QUEUEDEBUG_ABORT(...) panic(__VA_ARGS__)
++# else
++# include <err.h>
++# define QUEUEDEBUG_ABORT(...) err(1, __VA_ARGS__)
++# endif
++#endif
++
++/*
++ * Singly-linked List definitions.
++ */
++#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 access methods.
++ */
++#define SLIST_FIRST(head) ((head)->slh_first)
++#define SLIST_END(head) NULL
++#define SLIST_EMPTY(head) ((head)->slh_first == NULL)
++#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
++
++#define SLIST_FOREACH(var, head, field) \
++ for((var) = (head)->slh_first; \
++ (var) != SLIST_END(head); \
++ (var) = (var)->field.sle_next)
++
++#define SLIST_FOREACH_SAFE(var, head, field, tvar) \
++ for ((var) = SLIST_FIRST((head)); \
++ (var) != SLIST_END(head) && \
++ ((tvar) = SLIST_NEXT((var), field), 1); \
++ (var) = (tvar))
++
++/*
++ * Singly-linked List functions.
++ */
++#define SLIST_INIT(head) do { \
++ (head)->slh_first = SLIST_END(head); \
++} while (/*CONSTCOND*/0)
++
++#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
++ (elm)->field.sle_next = (slistelm)->field.sle_next; \
++ (slistelm)->field.sle_next = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define SLIST_INSERT_HEAD(head, elm, field) do { \
++ (elm)->field.sle_next = (head)->slh_first; \
++ (head)->slh_first = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define SLIST_REMOVE_AFTER(slistelm, field) do { \
++ (slistelm)->field.sle_next = \
++ SLIST_NEXT(SLIST_NEXT((slistelm), field), field); \
++} while (/*CONSTCOND*/0)
++
++#define SLIST_REMOVE_HEAD(head, field) do { \
++ (head)->slh_first = (head)->slh_first->field.sle_next; \
++} while (/*CONSTCOND*/0)
++
++#define SLIST_REMOVE(head, elm, type, field) do { \
++ if ((head)->slh_first == (elm)) { \
++ SLIST_REMOVE_HEAD((head), field); \
++ } \
++ else { \
++ struct type *curelm = (head)->slh_first; \
++ while(curelm->field.sle_next != (elm)) \
++ curelm = curelm->field.sle_next; \
++ curelm->field.sle_next = \
++ curelm->field.sle_next->field.sle_next; \
++ } \
++} while (/*CONSTCOND*/0)
++
++
++/*
++ * List definitions.
++ */
++#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 access methods.
++ */
++#define LIST_FIRST(head) ((head)->lh_first)
++#define LIST_END(head) NULL
++#define LIST_EMPTY(head) ((head)->lh_first == LIST_END(head))
++#define LIST_NEXT(elm, field) ((elm)->field.le_next)
++
++#define LIST_FOREACH(var, head, field) \
++ for ((var) = ((head)->lh_first); \
++ (var) != LIST_END(head); \
++ (var) = ((var)->field.le_next))
++
++#define LIST_FOREACH_SAFE(var, head, field, tvar) \
++ for ((var) = LIST_FIRST((head)); \
++ (var) != LIST_END(head) && \
++ ((tvar) = LIST_NEXT((var), field), 1); \
++ (var) = (tvar))
++
++#define LIST_MOVE(head1, head2) do { \
++ LIST_INIT((head2)); \
++ if (!LIST_EMPTY((head1))) { \
++ (head2)->lh_first = (head1)->lh_first; \
++ LIST_INIT((head1)); \
++ } \
++} while (/*CONSTCOND*/0)
++
++/*
++ * List functions.
++ */
++#if defined(QUEUEDEBUG)
++#define QUEUEDEBUG_LIST_INSERT_HEAD(head, elm, field) \
++ if ((head)->lh_first && \
++ (head)->lh_first->field.le_prev != &(head)->lh_first) \
++ QUEUEDEBUG_ABORT("LIST_INSERT_HEAD %p %s:%d", (head), \
++ __FILE__, __LINE__);
++#define QUEUEDEBUG_LIST_OP(elm, field) \
++ if ((elm)->field.le_next && \
++ (elm)->field.le_next->field.le_prev != \
++ &(elm)->field.le_next) \
++ QUEUEDEBUG_ABORT("LIST_* forw %p %s:%d", (elm), \
++ __FILE__, __LINE__); \
++ if (*(elm)->field.le_prev != (elm)) \
++ QUEUEDEBUG_ABORT("LIST_* back %p %s:%d", (elm), \
++ __FILE__, __LINE__);
++#define QUEUEDEBUG_LIST_POSTREMOVE(elm, field) \
++ (elm)->field.le_next = (void *)1L; \
++ (elm)->field.le_prev = (void *)1L;
++#else
++#define QUEUEDEBUG_LIST_INSERT_HEAD(head, elm, field)
++#define QUEUEDEBUG_LIST_OP(elm, field)
++#define QUEUEDEBUG_LIST_POSTREMOVE(elm, field)
++#endif
++
++#define LIST_INIT(head) do { \
++ (head)->lh_first = LIST_END(head); \
++} while (/*CONSTCOND*/0)
++
++#define LIST_INSERT_AFTER(listelm, elm, field) do { \
++ QUEUEDEBUG_LIST_OP((listelm), field) \
++ if (((elm)->field.le_next = (listelm)->field.le_next) != \
++ LIST_END(head)) \
++ (listelm)->field.le_next->field.le_prev = \
++ &(elm)->field.le_next; \
++ (listelm)->field.le_next = (elm); \
++ (elm)->field.le_prev = &(listelm)->field.le_next; \
++} while (/*CONSTCOND*/0)
++
++#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
++ QUEUEDEBUG_LIST_OP((listelm), field) \
++ (elm)->field.le_prev = (listelm)->field.le_prev; \
++ (elm)->field.le_next = (listelm); \
++ *(listelm)->field.le_prev = (elm); \
++ (listelm)->field.le_prev = &(elm)->field.le_next; \
++} while (/*CONSTCOND*/0)
++
++#define LIST_INSERT_HEAD(head, elm, field) do { \
++ QUEUEDEBUG_LIST_INSERT_HEAD((head), (elm), field) \
++ if (((elm)->field.le_next = (head)->lh_first) != LIST_END(head))\
++ (head)->lh_first->field.le_prev = &(elm)->field.le_next;\
++ (head)->lh_first = (elm); \
++ (elm)->field.le_prev = &(head)->lh_first; \
++} while (/*CONSTCOND*/0)
++
++#define LIST_REMOVE(elm, field) do { \
++ QUEUEDEBUG_LIST_OP((elm), field) \
++ if ((elm)->field.le_next != NULL) \
++ (elm)->field.le_next->field.le_prev = \
++ (elm)->field.le_prev; \
++ *(elm)->field.le_prev = (elm)->field.le_next; \
++ QUEUEDEBUG_LIST_POSTREMOVE((elm), field) \
++} while (/*CONSTCOND*/0)
++
++#define LIST_REPLACE(elm, elm2, field) do { \
++ if (((elm2)->field.le_next = (elm)->field.le_next) != NULL) \
++ (elm2)->field.le_next->field.le_prev = \
++ &(elm2)->field.le_next; \
++ (elm2)->field.le_prev = (elm)->field.le_prev; \
++ *(elm2)->field.le_prev = (elm2); \
++ QUEUEDEBUG_LIST_POSTREMOVE((elm), field) \
++} while (/*CONSTCOND*/0)
++
++/*
++ * Simple queue definitions.
++ */
++#define SIMPLEQ_HEAD(name, type) \
++struct name { \
++ struct type *sqh_first; /* first element */ \
++ struct type **sqh_last; /* addr of last next element */ \
++}
++
++#define SIMPLEQ_HEAD_INITIALIZER(head) \
++ { NULL, &(head).sqh_first }
++
++#define SIMPLEQ_ENTRY(type) \
++struct { \
++ struct type *sqe_next; /* next element */ \
++}
++
++/*
++ * Simple queue access methods.
++ */
++#define SIMPLEQ_FIRST(head) ((head)->sqh_first)
++#define SIMPLEQ_END(head) NULL
++#define SIMPLEQ_EMPTY(head) ((head)->sqh_first == SIMPLEQ_END(head))
++#define SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next)
++
++#define SIMPLEQ_FOREACH(var, head, field) \
++ for ((var) = ((head)->sqh_first); \
++ (var) != SIMPLEQ_END(head); \
++ (var) = ((var)->field.sqe_next))
++
++#define SIMPLEQ_FOREACH_SAFE(var, head, field, next) \
++ for ((var) = ((head)->sqh_first); \
++ (var) != SIMPLEQ_END(head) && \
++ ((next = ((var)->field.sqe_next)), 1); \
++ (var) = (next))
++
++/*
++ * Simple queue functions.
++ */
++#define SIMPLEQ_INIT(head) do { \
++ (head)->sqh_first = NULL; \
++ (head)->sqh_last = &(head)->sqh_first; \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_INSERT_HEAD(head, elm, field) do { \
++ if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \
++ (head)->sqh_last = &(elm)->field.sqe_next; \
++ (head)->sqh_first = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_INSERT_TAIL(head, elm, field) do { \
++ (elm)->field.sqe_next = NULL; \
++ *(head)->sqh_last = (elm); \
++ (head)->sqh_last = &(elm)->field.sqe_next; \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
++ if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
++ (head)->sqh_last = &(elm)->field.sqe_next; \
++ (listelm)->field.sqe_next = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_REMOVE_HEAD(head, field) do { \
++ if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
++ (head)->sqh_last = &(head)->sqh_first; \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_REMOVE_AFTER(head, elm, field) do { \
++ if (((elm)->field.sqe_next = (elm)->field.sqe_next->field.sqe_next) \
++ == NULL) \
++ (head)->sqh_last = &(elm)->field.sqe_next; \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_REMOVE(head, elm, type, field) do { \
++ if ((head)->sqh_first == (elm)) { \
++ SIMPLEQ_REMOVE_HEAD((head), field); \
++ } else { \
++ struct type *curelm = (head)->sqh_first; \
++ while (curelm->field.sqe_next != (elm)) \
++ curelm = curelm->field.sqe_next; \
++ if ((curelm->field.sqe_next = \
++ curelm->field.sqe_next->field.sqe_next) == NULL) \
++ (head)->sqh_last = &(curelm)->field.sqe_next; \
++ } \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_CONCAT(head1, head2) do { \
++ if (!SIMPLEQ_EMPTY((head2))) { \
++ *(head1)->sqh_last = (head2)->sqh_first; \
++ (head1)->sqh_last = (head2)->sqh_last; \
++ SIMPLEQ_INIT((head2)); \
++ } \
++} while (/*CONSTCOND*/0)
++
++#define SIMPLEQ_LAST(head, type, field) \
++ (SIMPLEQ_EMPTY((head)) ? \
++ NULL : \
++ ((struct type *)(void *) \
++ ((char *)((head)->sqh_last) - offsetof(struct type, field))))
++
++/*
++ * Tail queue definitions.
++ */
++#define _TAILQ_HEAD(name, type, qual) \
++struct name { \
++ qual type *tqh_first; /* first element */ \
++ qual type *qual *tqh_last; /* addr of last next element */ \
++}
++#define TAILQ_HEAD(name, type) _TAILQ_HEAD(name, struct type,)
++
++#define TAILQ_HEAD_INITIALIZER(head) \
++ { TAILQ_END(head), &(head).tqh_first }
++
++#define _TAILQ_ENTRY(type, qual) \
++struct { \
++ qual type *tqe_next; /* next element */ \
++ qual type *qual *tqe_prev; /* address of previous next element */\
++}
++#define TAILQ_ENTRY(type) _TAILQ_ENTRY(struct type,)
++
++/*
++ * Tail queue access methods.
++ */
++#define TAILQ_FIRST(head) ((head)->tqh_first)
++#define TAILQ_END(head) (NULL)
++#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
++#define TAILQ_LAST(head, headname) \
++ (*(((struct headname *)((head)->tqh_last))->tqh_last))
++#define TAILQ_PREV(elm, headname, field) \
++ (*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
++#define TAILQ_EMPTY(head) (TAILQ_FIRST(head) == TAILQ_END(head))
++
++
++#define TAILQ_FOREACH(var, head, field) \
++ for ((var) = ((head)->tqh_first); \
++ (var) != TAILQ_END(head); \
++ (var) = ((var)->field.tqe_next))
++
++#define TAILQ_FOREACH_SAFE(var, head, field, next) \
++ for ((var) = ((head)->tqh_first); \
++ (var) != TAILQ_END(head) && \
++ ((next) = TAILQ_NEXT(var, field), 1); (var) = (next))
++
++#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
++ for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last));\
++ (var) != TAILQ_END(head); \
++ (var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))
++
++#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, prev) \
++ for ((var) = TAILQ_LAST((head), headname); \
++ (var) != TAILQ_END(head) && \
++ ((prev) = TAILQ_PREV((var), headname, field), 1); (var) = (prev))
++
++/*
++ * Tail queue functions.
++ */
++#if defined(QUEUEDEBUG)
++#define QUEUEDEBUG_TAILQ_INSERT_HEAD(head, elm, field) \
++ if ((head)->tqh_first && \
++ (head)->tqh_first->field.tqe_prev != &(head)->tqh_first) \
++ QUEUEDEBUG_ABORT("TAILQ_INSERT_HEAD %p %s:%d", (head), \
++ __FILE__, __LINE__);
++#define QUEUEDEBUG_TAILQ_INSERT_TAIL(head, elm, field) \
++ if (*(head)->tqh_last != NULL) \
++ QUEUEDEBUG_ABORT("TAILQ_INSERT_TAIL %p %s:%d", (head), \
++ __FILE__, __LINE__);
++#define QUEUEDEBUG_TAILQ_OP(elm, field) \
++ if ((elm)->field.tqe_next && \
++ (elm)->field.tqe_next->field.tqe_prev != \
++ &(elm)->field.tqe_next) \
++ QUEUEDEBUG_ABORT("TAILQ_* forw %p %s:%d", (elm), \
++ __FILE__, __LINE__); \
++ if (*(elm)->field.tqe_prev != (elm)) \
++ QUEUEDEBUG_ABORT("TAILQ_* back %p %s:%d", (elm), \
++ __FILE__, __LINE__);
++#define QUEUEDEBUG_TAILQ_PREREMOVE(head, elm, field) \
++ if ((elm)->field.tqe_next == NULL && \
++ (head)->tqh_last != &(elm)->field.tqe_next) \
++ QUEUEDEBUG_ABORT("TAILQ_PREREMOVE head %p elm %p %s:%d",\
++ (head), (elm), __FILE__, __LINE__);
++#define QUEUEDEBUG_TAILQ_POSTREMOVE(elm, field) \
++ (elm)->field.tqe_next = (void *)1L; \
++ (elm)->field.tqe_prev = (void *)1L;
++#else
++#define QUEUEDEBUG_TAILQ_INSERT_HEAD(head, elm, field)
++#define QUEUEDEBUG_TAILQ_INSERT_TAIL(head, elm, field)
++#define QUEUEDEBUG_TAILQ_OP(elm, field)
++#define QUEUEDEBUG_TAILQ_PREREMOVE(head, elm, field)
++#define QUEUEDEBUG_TAILQ_POSTREMOVE(elm, field)
++#endif
++
++#define TAILQ_INIT(head) do { \
++ (head)->tqh_first = TAILQ_END(head); \
++ (head)->tqh_last = &(head)->tqh_first; \
++} while (/*CONSTCOND*/0)
++
++#define TAILQ_INSERT_HEAD(head, elm, field) do { \
++ QUEUEDEBUG_TAILQ_INSERT_HEAD((head), (elm), field) \
++ if (((elm)->field.tqe_next = (head)->tqh_first) != TAILQ_END(head))\
++ (head)->tqh_first->field.tqe_prev = \
++ &(elm)->field.tqe_next; \
++ else \
++ (head)->tqh_last = &(elm)->field.tqe_next; \
++ (head)->tqh_first = (elm); \
++ (elm)->field.tqe_prev = &(head)->tqh_first; \
++} while (/*CONSTCOND*/0)
++
++#define TAILQ_INSERT_TAIL(head, elm, field) do { \
++ QUEUEDEBUG_TAILQ_INSERT_TAIL((head), (elm), field) \
++ (elm)->field.tqe_next = TAILQ_END(head); \
++ (elm)->field.tqe_prev = (head)->tqh_last; \
++ *(head)->tqh_last = (elm); \
++ (head)->tqh_last = &(elm)->field.tqe_next; \
++} while (/*CONSTCOND*/0)
++
++#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
++ QUEUEDEBUG_TAILQ_OP((listelm), field) \
++ if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != \
++ TAILQ_END(head)) \
++ (elm)->field.tqe_next->field.tqe_prev = \
++ &(elm)->field.tqe_next; \
++ else \
++ (head)->tqh_last = &(elm)->field.tqe_next; \
++ (listelm)->field.tqe_next = (elm); \
++ (elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
++} while (/*CONSTCOND*/0)
++
++#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
++ QUEUEDEBUG_TAILQ_OP((listelm), field) \
++ (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
++ (elm)->field.tqe_next = (listelm); \
++ *(listelm)->field.tqe_prev = (elm); \
++ (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
++} while (/*CONSTCOND*/0)
++
++#define TAILQ_REMOVE(head, elm, field) do { \
++ QUEUEDEBUG_TAILQ_PREREMOVE((head), (elm), field) \
++ QUEUEDEBUG_TAILQ_OP((elm), field) \
++ if (((elm)->field.tqe_next) != TAILQ_END(head)) \
++ (elm)->field.tqe_next->field.tqe_prev = \
++ (elm)->field.tqe_prev; \
++ else \
++ (head)->tqh_last = (elm)->field.tqe_prev; \
++ *(elm)->field.tqe_prev = (elm)->field.tqe_next; \
++ QUEUEDEBUG_TAILQ_POSTREMOVE((elm), field); \
++} while (/*CONSTCOND*/0)
++
++#define TAILQ_REPLACE(head, elm, elm2, field) do { \
++ if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != \
++ TAILQ_END(head)) \
++ (elm2)->field.tqe_next->field.tqe_prev = \
++ &(elm2)->field.tqe_next; \
++ else \
++ (head)->tqh_last = &(elm2)->field.tqe_next; \
++ (elm2)->field.tqe_prev = (elm)->field.tqe_prev; \
++ *(elm2)->field.tqe_prev = (elm2); \
++ QUEUEDEBUG_TAILQ_POSTREMOVE((elm), field); \
++} while (/*CONSTCOND*/0)
++
++#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)); \
++ } \
++} while (/*CONSTCOND*/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 access methods.
++ */
++#define STAILQ_FIRST(head) ((head)->stqh_first)
++#define STAILQ_END(head) NULL
++#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
++#define STAILQ_EMPTY(head) (STAILQ_FIRST(head) == STAILQ_END(head))
++
++/*
++ * Singly-linked Tail queue functions.
++ */
++#define STAILQ_INIT(head) do { \
++ (head)->stqh_first = NULL; \
++ (head)->stqh_last = &(head)->stqh_first; \
++} while (/*CONSTCOND*/0)
++
++#define STAILQ_INSERT_HEAD(head, elm, field) do { \
++ if (((elm)->field.stqe_next = (head)->stqh_first) == NULL) \
++ (head)->stqh_last = &(elm)->field.stqe_next; \
++ (head)->stqh_first = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define STAILQ_INSERT_TAIL(head, elm, field) do { \
++ (elm)->field.stqe_next = NULL; \
++ *(head)->stqh_last = (elm); \
++ (head)->stqh_last = &(elm)->field.stqe_next; \
++} while (/*CONSTCOND*/0)
++
++#define STAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
++ if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\
++ (head)->stqh_last = &(elm)->field.stqe_next; \
++ (listelm)->field.stqe_next = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define STAILQ_REMOVE_HEAD(head, field) do { \
++ if (((head)->stqh_first = (head)->stqh_first->field.stqe_next) == NULL) \
++ (head)->stqh_last = &(head)->stqh_first; \
++} while (/*CONSTCOND*/0)
++
++#define STAILQ_REMOVE(head, elm, type, field) do { \
++ if ((head)->stqh_first == (elm)) { \
++ STAILQ_REMOVE_HEAD((head), field); \
++ } else { \
++ struct type *curelm = (head)->stqh_first; \
++ while (curelm->field.stqe_next != (elm)) \
++ curelm = curelm->field.stqe_next; \
++ if ((curelm->field.stqe_next = \
++ curelm->field.stqe_next->field.stqe_next) == NULL) \
++ (head)->stqh_last = &(curelm)->field.stqe_next; \
++ } \
++} while (/*CONSTCOND*/0)
++
++#define STAILQ_FOREACH(var, head, field) \
++ for ((var) = ((head)->stqh_first); \
++ (var); \
++ (var) = ((var)->field.stqe_next))
++
++#define STAILQ_FOREACH_SAFE(var, head, field, tvar) \
++ for ((var) = STAILQ_FIRST((head)); \
++ (var) && ((tvar) = STAILQ_NEXT((var), field), 1); \
++ (var) = (tvar))
++
++#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 (/*CONSTCOND*/0)
++
++#define STAILQ_LAST(head, type, field) \
++ (STAILQ_EMPTY((head)) ? \
++ NULL : \
++ ((struct type *)(void *) \
++ ((char *)((head)->stqh_last) - offsetof(struct type, field))))
++
++
++#ifndef _KERNEL
++/*
++ * Circular queue definitions. Do not use. We still keep the macros
++ * for compatibility but because of pointer aliasing issues their use
++ * is discouraged!
++ */
++
++/*
++ * __launder_type(): We use this ugly hack to work around the the compiler
++ * noticing that two types may not alias each other and elide tests in code.
++ * We hit this in the CIRCLEQ macros when comparing 'struct name *' and
++ * 'struct type *' (see CIRCLEQ_HEAD()). Modern compilers (such as GCC
++ * 4.8) declare these comparisons as always false, causing the code to
++ * not run as designed.
++ *
++ * This hack is only to be used for comparisons and thus can be fully const.
++ * Do not use for assignment.
++ *
++ * If we ever choose to change the ABI of the CIRCLEQ macros, we could fix
++ * this by changing the head/tail sentinal values, but see the note above
++ * this one.
++ */
++static __inline const void * __launder_type(const void *);
++static __inline const void *
++__launder_type(const void *__x)
++{
++ __asm __volatile("" : "+r" (__x));
++ return __x;
++}
++
++#if defined(QUEUEDEBUG)
++#define QUEUEDEBUG_CIRCLEQ_HEAD(head, field) \
++ if ((head)->cqh_first != CIRCLEQ_ENDC(head) && \
++ (head)->cqh_first->field.cqe_prev != CIRCLEQ_ENDC(head)) \
++ QUEUEDEBUG_ABORT("CIRCLEQ head forw %p %s:%d", (head), \
++ __FILE__, __LINE__); \
++ if ((head)->cqh_last != CIRCLEQ_ENDC(head) && \
++ (head)->cqh_last->field.cqe_next != CIRCLEQ_ENDC(head)) \
++ QUEUEDEBUG_ABORT("CIRCLEQ head back %p %s:%d", (head), \
++ __FILE__, __LINE__);
++#define QUEUEDEBUG_CIRCLEQ_ELM(head, elm, field) \
++ if ((elm)->field.cqe_next == CIRCLEQ_ENDC(head)) { \
++ if ((head)->cqh_last != (elm)) \
++ QUEUEDEBUG_ABORT("CIRCLEQ elm last %p %s:%d", \
++ (elm), __FILE__, __LINE__); \
++ } else { \
++ if ((elm)->field.cqe_next->field.cqe_prev != (elm)) \
++ QUEUEDEBUG_ABORT("CIRCLEQ elm forw %p %s:%d", \
++ (elm), __FILE__, __LINE__); \
++ } \
++ if ((elm)->field.cqe_prev == CIRCLEQ_ENDC(head)) { \
++ if ((head)->cqh_first != (elm)) \
++ QUEUEDEBUG_ABORT("CIRCLEQ elm first %p %s:%d", \
++ (elm), __FILE__, __LINE__); \
++ } else { \
++ if ((elm)->field.cqe_prev->field.cqe_next != (elm)) \
++ QUEUEDEBUG_ABORT("CIRCLEQ elm prev %p %s:%d", \
++ (elm), __FILE__, __LINE__); \
++ }
++#define QUEUEDEBUG_CIRCLEQ_POSTREMOVE(elm, field) \
++ (elm)->field.cqe_next = (void *)1L; \
++ (elm)->field.cqe_prev = (void *)1L;
++#else
++#define QUEUEDEBUG_CIRCLEQ_HEAD(head, field)
++#define QUEUEDEBUG_CIRCLEQ_ELM(head, elm, field)
++#define QUEUEDEBUG_CIRCLEQ_POSTREMOVE(elm, field)
++#endif
++
++#define CIRCLEQ_HEAD(name, type) \
++struct name { \
++ struct type *cqh_first; /* first element */ \
++ struct type *cqh_last; /* last element */ \
++}
++
++#define CIRCLEQ_HEAD_INITIALIZER(head) \
++ { CIRCLEQ_END(&head), CIRCLEQ_END(&head) }
++
++#define CIRCLEQ_ENTRY(type) \
++struct { \
++ struct type *cqe_next; /* next element */ \
++ struct type *cqe_prev; /* previous element */ \
++}
++
++/*
++ * Circular queue functions.
++ */
++#define CIRCLEQ_INIT(head) do { \
++ (head)->cqh_first = CIRCLEQ_END(head); \
++ (head)->cqh_last = CIRCLEQ_END(head); \
++} while (/*CONSTCOND*/0)
++
++#define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
++ QUEUEDEBUG_CIRCLEQ_HEAD((head), field) \
++ QUEUEDEBUG_CIRCLEQ_ELM((head), (listelm), field) \
++ (elm)->field.cqe_next = (listelm)->field.cqe_next; \
++ (elm)->field.cqe_prev = (listelm); \
++ if ((listelm)->field.cqe_next == CIRCLEQ_ENDC(head)) \
++ (head)->cqh_last = (elm); \
++ else \
++ (listelm)->field.cqe_next->field.cqe_prev = (elm); \
++ (listelm)->field.cqe_next = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \
++ QUEUEDEBUG_CIRCLEQ_HEAD((head), field) \
++ QUEUEDEBUG_CIRCLEQ_ELM((head), (listelm), field) \
++ (elm)->field.cqe_next = (listelm); \
++ (elm)->field.cqe_prev = (listelm)->field.cqe_prev; \
++ if ((listelm)->field.cqe_prev == CIRCLEQ_ENDC(head)) \
++ (head)->cqh_first = (elm); \
++ else \
++ (listelm)->field.cqe_prev->field.cqe_next = (elm); \
++ (listelm)->field.cqe_prev = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define CIRCLEQ_INSERT_HEAD(head, elm, field) do { \
++ QUEUEDEBUG_CIRCLEQ_HEAD((head), field) \
++ (elm)->field.cqe_next = (head)->cqh_first; \
++ (elm)->field.cqe_prev = CIRCLEQ_END(head); \
++ if ((head)->cqh_last == CIRCLEQ_ENDC(head)) \
++ (head)->cqh_last = (elm); \
++ else \
++ (head)->cqh_first->field.cqe_prev = (elm); \
++ (head)->cqh_first = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define CIRCLEQ_INSERT_TAIL(head, elm, field) do { \
++ QUEUEDEBUG_CIRCLEQ_HEAD((head), field) \
++ (elm)->field.cqe_next = CIRCLEQ_END(head); \
++ (elm)->field.cqe_prev = (head)->cqh_last; \
++ if ((head)->cqh_first == CIRCLEQ_ENDC(head)) \
++ (head)->cqh_first = (elm); \
++ else \
++ (head)->cqh_last->field.cqe_next = (elm); \
++ (head)->cqh_last = (elm); \
++} while (/*CONSTCOND*/0)
++
++#define CIRCLEQ_REMOVE(head, elm, field) do { \
++ QUEUEDEBUG_CIRCLEQ_HEAD((head), field) \
++ QUEUEDEBUG_CIRCLEQ_ELM((head), (elm), field) \
++ if ((elm)->field.cqe_next == CIRCLEQ_ENDC(head)) \
++ (head)->cqh_last = (elm)->field.cqe_prev; \
++ else \
++ (elm)->field.cqe_next->field.cqe_prev = \
++ (elm)->field.cqe_prev; \
++ if ((elm)->field.cqe_prev == CIRCLEQ_ENDC(head)) \
++ (head)->cqh_first = (elm)->field.cqe_next; \
++ else \
++ (elm)->field.cqe_prev->field.cqe_next = \
++ (elm)->field.cqe_next; \
++ QUEUEDEBUG_CIRCLEQ_POSTREMOVE((elm), field) \
++} while (/*CONSTCOND*/0)
++
++#define CIRCLEQ_FOREACH(var, head, field) \
++ for ((var) = ((head)->cqh_first); \
++ (var) != CIRCLEQ_ENDC(head); \
++ (var) = ((var)->field.cqe_next))
++
++#define CIRCLEQ_FOREACH_REVERSE(var, head, field) \
++ for ((var) = ((head)->cqh_last); \
++ (var) != CIRCLEQ_ENDC(head); \
++ (var) = ((var)->field.cqe_prev))
++
++/*
++ * Circular queue access methods.
++ */
++#define CIRCLEQ_FIRST(head) ((head)->cqh_first)
++#define CIRCLEQ_LAST(head) ((head)->cqh_last)
++/* For comparisons */
++#define CIRCLEQ_ENDC(head) (__launder_type(head))
++/* For assignments */
++#define CIRCLEQ_END(head) ((void *)(head))
++#define CIRCLEQ_NEXT(elm, field) ((elm)->field.cqe_next)
++#define CIRCLEQ_PREV(elm, field) ((elm)->field.cqe_prev)
++#define CIRCLEQ_EMPTY(head) \
++ (CIRCLEQ_FIRST(head) == CIRCLEQ_ENDC(head))
++
++#define CIRCLEQ_LOOP_NEXT(head, elm, field) \
++ (((elm)->field.cqe_next == CIRCLEQ_ENDC(head)) \
++ ? ((head)->cqh_first) \
++ : (elm->field.cqe_next))
++#define CIRCLEQ_LOOP_PREV(head, elm, field) \
++ (((elm)->field.cqe_prev == CIRCLEQ_ENDC(head)) \
++ ? ((head)->cqh_last) \
++ : (elm->field.cqe_prev))
++#endif /* !_KERNEL */
++
++#endif /* !_SYS_QUEUE_H_ */
+--
+2.3.7
+
projects / buildroot.git / commitdiff