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/* *********************************************************************
* Broadcom Common Firmware Environment (CFE)
*
* Queue management prototypes File: lib_queue.h
*
* Constants, structures, and function prototypes for the queue
* manager.
*
* Author: Mitch Lichtenberg (mpl@broadcom.com)
*
*********************************************************************
*
* Copyright 2000,2001,2002,2003
* Broadcom Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and
* conditions. Subject to these conditions, you may download,
* copy, install, use, modify and distribute modified or unmodified
* copies of this software in source and/or binary form. No title
* or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions
* as they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or
* logo of Broadcom Corporation. The "Broadcom Corporation"
* name may not be used to endorse or promote products derived
* from this software without the prior written permission of
* Broadcom Corporation.
*
* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
* SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
* PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR 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), EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
********************************************************************* */
#ifndef _LIB_QUEUE_H
#define _LIB_QUEUE_H
/* *********************************************************************
* Macros
********************************************************************* */
#define q_init(q) (q)->q_prev = (q), (q)->q_next = (q)
#define q_isempty(q) ((q)->q_next == (q))
#define q_getfirst(q) ((q)->q_next)
#define q_getlast(q) ((q)->q_prev)
/* *********************************************************************
* Types
********************************************************************* */
typedef struct queue_s {
struct queue_s *q_next;
struct queue_s *q_prev;
} queue_t;
/* *********************************************************************
* Prototypes
********************************************************************* */
void q_enqueue(queue_t *,queue_t *);
void q_dequeue(queue_t *);
queue_t *q_deqnext(queue_t *);
int q_map(queue_t *qb,int (*func)(queue_t *,unsigned int,unsigned int),
unsigned int a,unsigned int b);
int q_count(queue_t *);
int q_find(queue_t *,queue_t *);
#endif
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