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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <synch.h> 31 32 static rwlock_t fmd_msg_rwlock; 33 34 #pragma init(fmd_msg_init) 35 static void 36 fmd_msg_init(void) 37 { 38 (void) rwlock_init(&fmd_msg_rwlock, USYNC_THREAD, NULL); 39 } 40 41 #pragma fini(fmd_msg_fini) 42 static void 43 fmd_msg_fini(void) 44 { 45 (void) rwlock_destroy(&fmd_msg_rwlock); 46 } 47 48 void 49 fmd_msg_lock(void) 50 { 51 if (rw_wrlock(&fmd_msg_rwlock) != 0) 52 abort(); 53 } 54 55 void 56 fmd_msg_unlock(void) 57 { 58 if (rw_unlock(&fmd_msg_rwlock) != 0) 59 abort(); 60 } 61