1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_SLEEPQ_H 28 #define _SYS_SLEEPQ_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/machlock.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * Common definition for a sleep queue, 40 * be it an old-style sleep queue, or 41 * a constituent of a turnstile. 42 */ 43 44 typedef struct sleepq { 45 struct _kthread *sq_first; 46 } sleepq_t; 47 48 /* 49 * Definition of the head of a sleep queue hash bucket. 50 */ 51 typedef struct _sleepq_head { 52 sleepq_t sq_queue; 53 disp_lock_t sq_lock; 54 } sleepq_head_t; 55 56 #ifdef _KERNEL 57 58 #define NSLEEPQ 512 59 #define SQHASHINDEX(X) \ 60 (((uintptr_t)(X) >> 2) + ((uintptr_t)(X) >> 9) & (NSLEEPQ - 1)) 61 #define SQHASH(X) (&sleepq_head[SQHASHINDEX(X)]) 62 63 extern sleepq_head_t sleepq_head[NSLEEPQ]; 64 65 extern void sleepq_insert(sleepq_t *, struct _kthread *); 66 extern struct _kthread *sleepq_wakeone_chan(sleepq_t *, void *); 67 extern void sleepq_wakeall_chan(sleepq_t *, void *); 68 extern void sleepq_unsleep(struct _kthread *); 69 extern void sleepq_dequeue(struct _kthread *); 70 extern void sleepq_unlink(struct _kthread **, struct _kthread *); 71 72 #endif /* _KERNEL */ 73 74 #ifdef __cplusplus 75 } 76 #endif 77 78 #endif /* _SYS_SLEEPQ_H */ 79