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/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_SLEEPQ_H
#define _SYS_SLEEPQ_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/machlock.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Common definition for a sleep queue,
* be it an old-style sleep queue, or
* a constituent of a turnstile.
*/
typedef struct sleepq {
struct _kthread *sq_first;
} sleepq_t;
/*
* Definition of the head of a sleep queue hash bucket.
*/
typedef struct _sleepq_head {
sleepq_t sq_queue;
disp_lock_t sq_lock;
} sleepq_head_t;
#ifdef _KERNEL
#define NSLEEPQ 512
#define SQHASHINDEX(X) \
(((uintptr_t)(X) >> 2) + ((uintptr_t)(X) >> 9) & (NSLEEPQ - 1))
#define SQHASH(X) (&sleepq_head[SQHASHINDEX(X)])
extern sleepq_head_t sleepq_head[NSLEEPQ];
extern void sleepq_insert(sleepq_t *, struct _kthread *);
extern struct _kthread *sleepq_wakeone_chan(sleepq_t *, void *);
extern void sleepq_wakeall_chan(sleepq_t *, void *);
extern void sleepq_unsleep(struct _kthread *);
extern void sleepq_dequeue(struct _kthread *);
extern void sleepq_unlink(struct _kthread **, struct _kthread *);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SLEEPQ_H */
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