2011-12-15 Konrad Eisele <konrad@gaisler.com>
* configure.in: Add SPARC LEON support. * configure: Regenerated. * sparc_leon/asm-leon/amba.h, sparc_leon/asm-leon/asmmacro.h, sparc_leon/asm-leon/clock.h, sparc_leon/asm-leon/contextswitch.h, sparc_leon/asm-leon/elfmacro.h, sparc_leon/asm-leon/head.h, sparc_leon/asm-leon/irq.h, sparc_leon/asm-leon/jiffies.h, sparc_leon/asm-leon/lambapp.h, sparc_leon/asm-leon/lambapp_devs.h, sparc_leon/asm-leon/leon.h, sparc_leon/asm-leon/leon3.h, sparc_leon/asm-leon/leonbare_debug.h, sparc_leon/asm-leon/leonbare_kernel.h, sparc_leon/asm-leon/leonbare_kernel_queue.h, sparc_leon/asm-leon/leoncompat.h, sparc_leon/asm-leon/leondbg.h, sparc_leon/asm-leon/leonstack.h, sparc_leon/asm-leon/liblocks.h, sparc_leon/asm-leon/linkage.h, sparc_leon/asm-leon/param.h, sparc_leon/asm-leon/queue.h, sparc_leon/asm-leon/spinlock.h, sparc_leon/asm-leon/stack.h, sparc_leon/asm-leon/time.h, sparc_leon/asm-leon/timer.h, sparc_leon/asm-leon/types.h, sparc_leon/asm-leon/winmacros.h: New file. * sparc_leon/Makefile.in, sparc_leon/_exit.c, sparc_leon/amba.c, sparc_leon/amba_dbg.c, sparc_leon/amba_driver.c, sparc_leon/amba_scan.c, sparc_leon/asm-leon, sparc_leon/bdinit.S, sparc_leon/busscan.S, sparc_leon/cacheA.S, sparc_leon/catch_interrupt.c, sparc_leon/catch_interrupt_mvt.c, sparc_leon/catch_interrupt_pending.c, sparc_leon/catch_interrupt_svt.c, sparc_leon/configure.in, sparc_leon/console.c, sparc_leon/console_dbg.c, sparc_leon/console_init.c, sparc_leon/contextswitch.c, sparc_leon/contextswitch_asm.S, sparc_leon/crt0.S, sparc_leon/crti.S, sparc_leon/crtn.S, sparc_leon/etrap.S, sparc_leon/etrap_fast.S, sparc_leon/fpu.S, sparc_leon/gettimeofday.c, sparc_leon/initcalls.c, sparc_leon/io.c, sparc_leon/irqinstall.S, sparc_leon/irqtrap.S, sparc_leon/irqtrap_fast.S, sparc_leon/jiffies.c, sparc_leon/kernel.c, sparc_leon/kernel_context.S, sparc_leon/kernel_debug.c, sparc_leon/kernel_debug_var.c, sparc_leon/kernel_mm.c, sparc_leon/kernel_mutex.c, sparc_leon/kernel_queue.c, sparc_leon/kernel_sched.c, sparc_leon/kernel_thread.c, sparc_leon/lcpuinit.S, sparc_leon/locore.S, sparc_leon/locore_atexit.c, sparc_leon/locore_clean.S, sparc_leon/locore_mvt.S, sparc_leon/locore_mvt_reset.S, sparc_leon/locore_svt.S, sparc_leon/locore_svt_reset.S, sparc_leon/locore_svtdisp.S, sparc_leon/locore_var.S, sparc_leon/locore_var_svt.S, sparc_leon/mmu_asm.S, sparc_leon/mutex.c, sparc_leon/nocache.S, sparc_leon/pnpinit.c, sparc_leon/pnpinit_malloc.c, sparc_leon/pnpinit_simple.c, sparc_leon/regwin.S, sparc_leon/regwin_patch.c, sparc_leon/regwin_slow.S, sparc_leon/regwinflush.S, sparc_leon/rtc.c, sparc_leon/rtrap.S, sparc_leon/rtrap_fast.S, sparc_leon/stop.S, sparc_leon/timer.c, sparc_leon/times.c: New file * sparc_leon/configure: Regenerate
This commit is contained in:
570
libgloss/sparc_leon/asm-leon/queue.h
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570
libgloss/sparc_leon/asm-leon/queue.h
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@ -0,0 +1,570 @@
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//####BSDCOPYRIGHTBEGIN####
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//
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// -------------------------------------------
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||||
//
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// Portions of this software may have been derived from OpenBSD,
|
||||
// FreeBSD or other sources, and are covered by the appropriate
|
||||
// copyright disclaimers included herein.
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||||
//
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||||
// Portions created by Red Hat are
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||||
// Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
|
||||
//
|
||||
// -------------------------------------------
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||||
//
|
||||
//####BSDCOPYRIGHTEND####
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||||
//==========================================================================
|
||||
|
||||
/*
|
||||
* Copyright (c) 1991, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
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||||
* 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.
|
||||
*
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||||
* 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
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||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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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: src/sys/sys/queue.h,v 1.32.2.4 2001/03/31 03:33:39 hsu Exp $
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*/
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#ifndef _SYS_QUEUE_H_
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#define _SYS_QUEUE_H_
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#ifndef __ASSEMBLER__
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/*
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* This file defines five types of data structures: singly-linked lists,
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* singly-linked tail queues, lists, tail queues, and circular 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.
|
||||
* 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.
|
||||
* 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.
|
||||
*
|
||||
* 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
|
||||
* 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.
|
||||
*
|
||||
* 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
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||||
* complex end of list detection.
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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 CIRCLEQ
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* _HEAD + + + + +
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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_REVERSE - - - + +
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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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* _REMOVE_HEAD + - + - -
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* _REMOVE + + + + +
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*
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*/
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|
||||
/*
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* Singly-linked List definitions.
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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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* 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) = (head)->slh_first; (var); (var) = (var)->field.sle_next)
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||||
|
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#define SLIST_INIT(head) { \
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(head)->slh_first = NULL; \
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}
|
||||
|
||||
#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
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(elm)->field.sle_next = (slistelm)->field.sle_next; \
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(slistelm)->field.sle_next = (elm); \
|
||||
} while (0)
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||||
|
||||
#define SLIST_INSERT_HEAD(head, elm, field) do { \
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||||
(elm)->field.sle_next = (head)->slh_first; \
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||||
(head)->slh_first = (elm); \
|
||||
} while (0)
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||||
|
||||
#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
|
||||
|
||||
#define SLIST_REMOVE_HEAD(head, field) do { \
|
||||
(head)->slh_first = (head)->slh_first->field.sle_next; \
|
||||
} while (0)
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|
||||
#define SLIST_REMOVE(head, elm, type, field) do { \
|
||||
if ((head)->slh_first == (elm)) { \
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||||
SLIST_REMOVE_HEAD((head), field); \
|
||||
} \
|
||||
else { \
|
||||
struct type *curelm = (head)->slh_first; \
|
||||
while( curelm->field.sle_next != (elm) ) \
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||||
curelm = curelm->field.sle_next; \
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||||
curelm->field.sle_next = \
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curelm->field.sle_next->field.sle_next; \
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} \
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||||
} while (0)
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||||
|
||||
/*
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* Singly-linked Tail queue definitions.
|
||||
*/
|
||||
#define STAILQ_HEAD(name, type) \
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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 */ \
|
||||
}
|
||||
|
||||
/*
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* Singly-linked Tail queue functions.
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||||
*/
|
||||
#define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
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||||
|
||||
#define STAILQ_INIT(head) do { \
|
||||
(head)->stqh_first = NULL; \
|
||||
(head)->stqh_last = &(head)->stqh_first; \
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||||
} while (0)
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||||
|
||||
#define STAILQ_FIRST(head) ((head)->stqh_first)
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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 *) \
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||||
((char *)((head)->stqh_last) - __offsetof(struct type, field))))
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||||
|
||||
#define STAILQ_FOREACH(var, head, field) \
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||||
for((var) = (head)->stqh_first; (var); (var) = (var)->field.stqe_next)
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||||
|
||||
#define STAILQ_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.stqe_next = (head)->stqh_first) == NULL) \
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||||
(head)->stqh_last = &(elm)->field.stqe_next; \
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(head)->stqh_first = (elm); \
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||||
} while (0)
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||||
|
||||
#define STAILQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.stqe_next = NULL; \
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*(head)->stqh_last = (elm); \
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(head)->stqh_last = &(elm)->field.stqe_next; \
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||||
} while (0)
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||||
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||||
#define STAILQ_INSERT_AFTER(head, tqelm, elm, field) do { \
|
||||
if (((elm)->field.stqe_next = (tqelm)->field.stqe_next) == NULL)\
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(head)->stqh_last = &(elm)->field.stqe_next; \
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(tqelm)->field.stqe_next = (elm); \
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} while (0)
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||||
|
||||
#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
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||||
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||||
#define STAILQ_REMOVE_HEAD(head, field) do { \
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||||
if (((head)->stqh_first = \
|
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(head)->stqh_first->field.stqe_next) == NULL) \
|
||||
(head)->stqh_last = &(head)->stqh_first; \
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} while (0)
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||||
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||||
#define STAILQ_REMOVE_HEAD_UNTIL(head, elm, field) do { \
|
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if (((head)->stqh_first = (elm)->field.stqe_next) == NULL) \
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(head)->stqh_last = &(head)->stqh_first; \
|
||||
} while (0)
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||||
|
||||
#define STAILQ_REMOVE(head, elm, type, field) do { \
|
||||
if ((head)->stqh_first == (elm)) { \
|
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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; \
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||||
} \
|
||||
} while (0)
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||||
|
||||
/*
|
||||
* 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 functions.
|
||||
*/
|
||||
|
||||
#define LIST_EMPTY(head) ((head)->lh_first == NULL)
|
||||
|
||||
#define LIST_FIRST(head) ((head)->lh_first)
|
||||
|
||||
#define LIST_FOREACH(var, head, field) \
|
||||
for((var) = (head)->lh_first; (var); (var) = (var)->field.le_next)
|
||||
|
||||
#define LIST_INIT(head) do { \
|
||||
(head)->lh_first = NULL; \
|
||||
} while (0)
|
||||
|
||||
#define LIST_INSERT_AFTER(listelm, elm, field) do { \
|
||||
if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \
|
||||
(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 (0)
|
||||
|
||||
#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
|
||||
(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 (0)
|
||||
|
||||
#define LIST_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.le_next = (head)->lh_first) != NULL) \
|
||||
(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
|
||||
(head)->lh_first = (elm); \
|
||||
(elm)->field.le_prev = &(head)->lh_first; \
|
||||
} while (0)
|
||||
|
||||
#define LIST_NEXT(elm, field) ((elm)->field.le_next)
|
||||
|
||||
#define LIST_REMOVE(elm, field) do { \
|
||||
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; \
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* Tail queue definitions.
|
||||
*/
|
||||
#define TAILQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *tqh_first; /* first element */ \
|
||||
struct type **tqh_last; /* addr of last next element */ \
|
||||
char *tqh_name; \
|
||||
}
|
||||
|
||||
#define TAILQ_HEAD_INITIALIZER(head) \
|
||||
{ NULL, &(head).tqh_first, 0 }
|
||||
|
||||
#define TAILQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *tqe_next; /* next element */ \
|
||||
struct type **tqe_prev; /* address of previous next element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* Tail queue functions.
|
||||
*/
|
||||
#define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
|
||||
|
||||
#define TAILQ_HASTWO(head, field) ((!TAILQ_EMPTY(head)) && TAILQ_NEXT(TAILQ_FIRST(head),field))
|
||||
|
||||
#define TAILQ_FOREACH(var, head, field) \
|
||||
for (var = TAILQ_FIRST(head); var; var = TAILQ_NEXT(var, field))
|
||||
|
||||
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
|
||||
for ((var) = TAILQ_LAST((head), headname); \
|
||||
(var); \
|
||||
(var) = TAILQ_PREV((var), headname, field))
|
||||
|
||||
#define TAILQ_FIRST(head) ((head)->tqh_first)
|
||||
|
||||
#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_INIT(head) do { \
|
||||
(head)->tqh_first = NULL; \
|
||||
(head)->tqh_last = &(head)->tqh_first; \
|
||||
(head)->tqh_name = 0; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
|
||||
if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
|
||||
(head)->tqh_first->field.tqe_prev = \
|
||||
&(elm)->field.tqe_next; \
|
||||
else \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
(head)->tqh_first = (elm); \
|
||||
(elm)->field.tqe_prev = &(head)->tqh_first; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.tqe_next = NULL; \
|
||||
(elm)->field.tqe_prev = (head)->tqh_last; \
|
||||
*(head)->tqh_last = (elm); \
|
||||
(head)->tqh_last = &(elm)->field.tqe_next; \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
|
||||
(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 (0)
|
||||
|
||||
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
|
||||
(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 (0)
|
||||
|
||||
#define TAILQ_REMOVE(head, elm, field) do { \
|
||||
if (((elm)->field.tqe_next) != NULL) \
|
||||
(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; \
|
||||
(elm)->field.tqe_next = 0; \
|
||||
(elm)->field.tqe_prev = 0; /* mark removed */ \
|
||||
} while (0)
|
||||
|
||||
#define TAILQ_REMOVED(elm, field) ((elm)->field.tqe_next == NULL && (elm)->field.tqe_prev == NULL)
|
||||
|
||||
/*
|
||||
* Circular queue definitions.
|
||||
*/
|
||||
#define CIRCLEQ_HEAD(name, type) \
|
||||
struct name { \
|
||||
struct type *cqh_first; /* first element */ \
|
||||
struct type *cqh_last; /* last element */ \
|
||||
}
|
||||
|
||||
#define CIRCLEQ_ENTRY(type) \
|
||||
struct { \
|
||||
struct type *cqe_next; /* next element */ \
|
||||
struct type *cqe_prev; /* previous element */ \
|
||||
}
|
||||
|
||||
/*
|
||||
* Circular queue functions.
|
||||
*/
|
||||
#define CIRCLEQ_EMPTY(head) ((head)->cqh_first == (void *)(head))
|
||||
|
||||
#define CIRCLEQ_FIRST(head) ((head)->cqh_first)
|
||||
|
||||
#define CIRCLEQ_FOREACH(var, head, field) \
|
||||
for((var) = (head)->cqh_first; \
|
||||
(var) != (void *)(head); \
|
||||
(var) = (var)->field.cqe_next)
|
||||
|
||||
#define CIRCLEQ_FOREACH_REVERSE(var, head, field) \
|
||||
for((var) = (head)->cqh_last; \
|
||||
(var) != (void *)(head); \
|
||||
(var) = (var)->field.cqe_prev)
|
||||
|
||||
#define CIRCLEQ_INIT(head) do { \
|
||||
(head)->cqh_first = (void *)(head); \
|
||||
(head)->cqh_last = (void *)(head); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
|
||||
(elm)->field.cqe_next = (listelm)->field.cqe_next; \
|
||||
(elm)->field.cqe_prev = (listelm); \
|
||||
if ((listelm)->field.cqe_next == (void *)(head)) \
|
||||
(head)->cqh_last = (elm); \
|
||||
else \
|
||||
(listelm)->field.cqe_next->field.cqe_prev = (elm); \
|
||||
(listelm)->field.cqe_next = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \
|
||||
(elm)->field.cqe_next = (listelm); \
|
||||
(elm)->field.cqe_prev = (listelm)->field.cqe_prev; \
|
||||
if ((listelm)->field.cqe_prev == (void *)(head)) \
|
||||
(head)->cqh_first = (elm); \
|
||||
else \
|
||||
(listelm)->field.cqe_prev->field.cqe_next = (elm); \
|
||||
(listelm)->field.cqe_prev = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_HEAD(head, elm, field) do { \
|
||||
(elm)->field.cqe_next = (head)->cqh_first; \
|
||||
(elm)->field.cqe_prev = (void *)(head); \
|
||||
if ((head)->cqh_last == (void *)(head)) \
|
||||
(head)->cqh_last = (elm); \
|
||||
else \
|
||||
(head)->cqh_first->field.cqe_prev = (elm); \
|
||||
(head)->cqh_first = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_INSERT_TAIL(head, elm, field) do { \
|
||||
(elm)->field.cqe_next = (void *)(head); \
|
||||
(elm)->field.cqe_prev = (head)->cqh_last; \
|
||||
if ((head)->cqh_first == (void *)(head)) \
|
||||
(head)->cqh_first = (elm); \
|
||||
else \
|
||||
(head)->cqh_last->field.cqe_next = (elm); \
|
||||
(head)->cqh_last = (elm); \
|
||||
} while (0)
|
||||
|
||||
#define CIRCLEQ_LAST(head) ((head)->cqh_last)
|
||||
|
||||
#define CIRCLEQ_NEXT(elm,field) ((elm)->field.cqe_next)
|
||||
|
||||
#define CIRCLEQ_PREV(elm,field) ((elm)->field.cqe_prev)
|
||||
|
||||
#define CIRCLEQ_REMOVE(head, elm, field) do { \
|
||||
if ((elm)->field.cqe_next == (void *)(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 == (void *)(head)) \
|
||||
(head)->cqh_first = (elm)->field.cqe_next; \
|
||||
else \
|
||||
(elm)->field.cqe_prev->field.cqe_next = \
|
||||
(elm)->field.cqe_next; \
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* XXX insque() and remque() are an old way of handling certain queues.
|
||||
* They bogusly assumes that all queue heads look alike.
|
||||
*/
|
||||
|
||||
struct quehead
|
||||
{
|
||||
struct quehead *qh_link;
|
||||
struct quehead *qh_rlink;
|
||||
};
|
||||
|
||||
#ifdef __GNUC__
|
||||
|
||||
static __inline void
|
||||
insque (void *a, void *b)
|
||||
{
|
||||
struct quehead *element = a, *head = b;
|
||||
|
||||
element->qh_link = head->qh_link;
|
||||
element->qh_rlink = head;
|
||||
head->qh_link = element;
|
||||
element->qh_link->qh_rlink = element;
|
||||
}
|
||||
|
||||
static __inline void
|
||||
remque (void *a)
|
||||
{
|
||||
struct quehead *element = a;
|
||||
|
||||
element->qh_link->qh_rlink = element->qh_rlink;
|
||||
element->qh_rlink->qh_link = element->qh_link;
|
||||
element->qh_rlink = 0;
|
||||
}
|
||||
|
||||
#else /* !__GNUC__ */
|
||||
|
||||
void insque __P ((void *a, void *b));
|
||||
void remque __P ((void *a));
|
||||
|
||||
#endif /* __GNUC__ */
|
||||
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
||||
|
||||
#endif /* !_SYS_QUEUE_H_ */
|
Reference in New Issue
Block a user