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Diffstat (limited to 'usr/src/uts/common/sys/sleepq.h')
| -rw-r--r-- | usr/src/uts/common/sys/sleepq.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/sleepq.h b/usr/src/uts/common/sys/sleepq.h new file mode 100644 index 0000000000..f661387644 --- /dev/null +++ b/usr/src/uts/common/sys/sleepq.h @@ -0,0 +1,78 @@ +/* + * 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 */ |