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 /* 28 * condvar.h: 29 * 30 * definitions for thread synchronization primitives: condition variables 31 * This is the public part of the interface to condition variables. The 32 * private (implementation-specific) part is in <arch>/sys/condvar_impl.h. 33 */ 34 35 #ifndef _SYS_CONDVAR_H 36 #define _SYS_CONDVAR_H 37 38 #pragma ident "%Z%%M% %I% %E% SMI" 39 40 #ifndef _ASM 41 #include <sys/types.h> 42 #include <sys/time.h> 43 #ifdef _KERNEL 44 #include <sys/mutex.h> 45 #endif /* _KERNEL */ 46 #endif /* _ASM */ 47 48 #ifdef __cplusplus 49 extern "C" { 50 #endif 51 52 #ifndef _ASM 53 54 /* 55 * Condtion variables. 56 */ 57 58 typedef struct _kcondvar { 59 ushort_t _opaque; 60 } kcondvar_t; 61 62 typedef enum { 63 CV_DEFAULT, 64 CV_DRIVER 65 } kcv_type_t; 66 67 68 #if defined(_KERNEL) 69 70 /* 71 * condition variable function prototypes 72 */ 73 74 extern void cv_init(kcondvar_t *, char *, kcv_type_t, void *); 75 extern void cv_destroy(kcondvar_t *); 76 extern void cv_wait(kcondvar_t *, kmutex_t *); 77 extern void cv_wait_stop(kcondvar_t *, kmutex_t *, int); 78 extern clock_t cv_timedwait(kcondvar_t *, kmutex_t *, clock_t); 79 extern int cv_wait_sig(kcondvar_t *, kmutex_t *); 80 extern clock_t cv_timedwait_sig(kcondvar_t *, kmutex_t *, clock_t); 81 extern int cv_wait_sig_swap(kcondvar_t *, kmutex_t *); 82 extern int cv_wait_sig_swap_core(kcondvar_t *, kmutex_t *, int *); 83 extern void cv_signal(kcondvar_t *); 84 extern void cv_broadcast(kcondvar_t *); 85 extern int cv_waituntil_sig(kcondvar_t *, kmutex_t *, timestruc_t *, int); 86 87 #endif /* defined(_KERNEL) */ 88 89 #endif /* _ASM */ 90 91 #ifdef __cplusplus 92 } 93 #endif 94 95 #endif /* _SYS_CONDVAR_H */ 96