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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_SLEEPQ_H 27 #define _SYS_SLEEPQ_H 28 29 #include <sys/machlock.h> 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /* 36 * Common definition for a sleep queue, 37 * be it an old-style sleep queue, or 38 * a constituent of a turnstile. 39 */ 40 41 typedef struct sleepq { 42 struct _kthread *sq_first; 43 } sleepq_t; 44 45 /* 46 * Definition of the head of a sleep queue hash bucket. 47 */ 48 typedef struct _sleepq_head { 49 sleepq_t sq_queue; 50 disp_lock_t sq_lock; 51 } sleepq_head_t; 52 53 #ifdef _KERNEL 54 55 #define NSLEEPQ 2048 56 #define SQHASHINDEX(X) \ 57 ((((uintptr_t)(X) >> 2) ^ ((uintptr_t)(X) >> 13) ^ \ 58 ((uintptr_t)(X) >> 24)) & (NSLEEPQ - 1)) 59 #define SQHASH(X) (&sleepq_head[SQHASHINDEX(X)]) 60 61 extern sleepq_head_t sleepq_head[NSLEEPQ]; 62 63 extern void sleepq_insert(sleepq_t *, struct _kthread *); 64 extern struct _kthread *sleepq_wakeone_chan(sleepq_t *, void *); 65 extern void sleepq_wakeall_chan(sleepq_t *, void *); 66 extern void sleepq_unsleep(struct _kthread *); 67 extern void sleepq_dequeue(struct _kthread *); 68 extern void sleepq_unlink(struct _kthread **, struct _kthread *); 69 70 #endif /* _KERNEL */ 71 72 #ifdef __cplusplus 73 } 74 #endif 75 76 #endif /* _SYS_SLEEPQ_H */ 77