1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1993-1998 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_SEMAPHORE_H 28*0Sstevel@tonic-gate #define _SYS_SEMAPHORE_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate /* 33*0Sstevel@tonic-gate * Public interface to semaphores. See semaphore(9F) for details. 34*0Sstevel@tonic-gate */ 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #ifndef _ASM 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #ifdef _KERNEL 39*0Sstevel@tonic-gate #include <sys/thread.h> 40*0Sstevel@tonic-gate #endif 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate #ifdef __cplusplus 43*0Sstevel@tonic-gate extern "C" { 44*0Sstevel@tonic-gate #endif 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate typedef enum { 47*0Sstevel@tonic-gate SEMA_DEFAULT, 48*0Sstevel@tonic-gate SEMA_DRIVER 49*0Sstevel@tonic-gate } ksema_type_t; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate typedef struct _ksema { 52*0Sstevel@tonic-gate void * _opaque[2]; /* 2 words on 4 byte alignment */ 53*0Sstevel@tonic-gate } ksema_t; 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate #if defined(_KERNEL) 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate #define SEMA_HELD(x) (sema_held((x))) 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate extern void sema_init(ksema_t *, uint32_t, char *, ksema_type_t, void *); 60*0Sstevel@tonic-gate extern void sema_destroy(ksema_t *); 61*0Sstevel@tonic-gate extern void sema_p(ksema_t *); 62*0Sstevel@tonic-gate extern int sema_p_sig(ksema_t *); 63*0Sstevel@tonic-gate extern void sema_v(ksema_t *); 64*0Sstevel@tonic-gate extern int sema_tryp(ksema_t *); 65*0Sstevel@tonic-gate extern int sema_held(ksema_t *); 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate #endif /* defined(_KERNEL) */ 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate #ifdef __cplusplus 70*0Sstevel@tonic-gate } 71*0Sstevel@tonic-gate #endif 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate #endif /* _ASM */ 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate #endif /* _SYS_SEMAPHORE_H */ 76