1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright (c) 1993-1998 by Sun Microsystems, Inc. 24*7c478bd9Sstevel@tonic-gate * All rights reserved. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #ifndef _SYS_SEMAPHORE_H 28*7c478bd9Sstevel@tonic-gate #define _SYS_SEMAPHORE_H 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate /* 31*7c478bd9Sstevel@tonic-gate * Public interface to semaphores. See semaphore(9F) for details. 32*7c478bd9Sstevel@tonic-gate */ 33*7c478bd9Sstevel@tonic-gate 34*7c478bd9Sstevel@tonic-gate #ifndef _ASM 35*7c478bd9Sstevel@tonic-gate 36*7c478bd9Sstevel@tonic-gate #ifdef _KERNEL 37*7c478bd9Sstevel@tonic-gate #include <sys/thread.h> 38*7c478bd9Sstevel@tonic-gate #endif 39*7c478bd9Sstevel@tonic-gate 40*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 41*7c478bd9Sstevel@tonic-gate extern "C" { 42*7c478bd9Sstevel@tonic-gate #endif 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate typedef enum { 45*7c478bd9Sstevel@tonic-gate SEMA_DEFAULT, 46*7c478bd9Sstevel@tonic-gate SEMA_DRIVER 47*7c478bd9Sstevel@tonic-gate } ksema_type_t; 48*7c478bd9Sstevel@tonic-gate 49*7c478bd9Sstevel@tonic-gate typedef struct _ksema { 50*7c478bd9Sstevel@tonic-gate void * _opaque[2]; /* 2 words on 4 byte alignment */ 51*7c478bd9Sstevel@tonic-gate } ksema_t; 52*7c478bd9Sstevel@tonic-gate 53*7c478bd9Sstevel@tonic-gate #if defined(_KERNEL) 54*7c478bd9Sstevel@tonic-gate 55*7c478bd9Sstevel@tonic-gate #define SEMA_HELD(x) (sema_held((x))) 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate extern void sema_init(ksema_t *, uint32_t, char *, ksema_type_t, void *); 58*7c478bd9Sstevel@tonic-gate extern void sema_destroy(ksema_t *); 59*7c478bd9Sstevel@tonic-gate extern void sema_p(ksema_t *); 60*7c478bd9Sstevel@tonic-gate extern int sema_p_sig(ksema_t *); 61*7c478bd9Sstevel@tonic-gate extern void sema_v(ksema_t *); 62*7c478bd9Sstevel@tonic-gate extern int sema_tryp(ksema_t *); 63*7c478bd9Sstevel@tonic-gate extern int sema_held(ksema_t *); 64*7c478bd9Sstevel@tonic-gate 65*7c478bd9Sstevel@tonic-gate #endif /* defined(_KERNEL) */ 66*7c478bd9Sstevel@tonic-gate 67*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 68*7c478bd9Sstevel@tonic-gate } 69*7c478bd9Sstevel@tonic-gate #endif 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate #endif /* _ASM */ 72*7c478bd9Sstevel@tonic-gate 73*7c478bd9Sstevel@tonic-gate #endif /* _SYS_SEMAPHORE_H */ 74