queue.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1994, by Sun Microsytems, Inc.
*/
#ifndef _QUEUE_H
#define _QUEUE_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Includes
*/
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Typedefs
*/
typedef struct queue_node queue_node_t;
struct queue_node {
queue_node_t *next_p;
queue_node_t *prev_p;
};
/*
* Declarations
*/
boolean_t queue_isempty(queue_node_t * q);
queue_node_t *queue_prepend(queue_node_t * h, queue_node_t * q);
queue_node_t *queue_append(queue_node_t * h, queue_node_t * q);
void queue_init(queue_node_t * q);
queue_node_t *queue_next(queue_node_t * h, queue_node_t * q);
queue_node_t *queue_remove(queue_node_t * q);
#ifdef __cplusplus
}
#endif
#endif /* _QUEUE_H */