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 (c) 1993-1998 by Sun Microsystems, Inc. 24 * All rights reserved. 25 * 26 * Copyright 2013 Nexenta Systems, Inc. All rights reserved. 27 */ 28 29 #ifndef _SYS_SEMAPHORE_H 30 #define _SYS_SEMAPHORE_H 31 32 /* 33 * Public interface to semaphores. See semaphore(9F) for details. 34 */ 35 36 #include <sys/synch.h> /* lwp_sema_t */ 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 typedef enum { 43 SEMA_DEFAULT, 44 SEMA_DRIVER 45 } ksema_type_t; 46 47 typedef lwp_sema_t ksema_t; 48 49 #define SEMA_HELD(x) (sema_held((x))) 50 51 /* 52 * We're simulating the kernel mutex API here, and the 53 * user-level has a different signature, so rename. 54 */ 55 56 #define sema_init ksema_init 57 #define sema_destroy ksema_destroy 58 59 extern void ksema_init(ksema_t *, uint32_t, char *, ksema_type_t, void *); 60 extern void ksema_destroy(ksema_t *); 61 62 extern void sema_p(ksema_t *); 63 extern int sema_p_sig(ksema_t *); 64 extern void sema_v(ksema_t *); 65 extern int sema_tryp(ksema_t *); 66 extern int sema_held(ksema_t *); 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif /* _SYS_SEMAPHORE_H */ 73