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 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include "lint.h" 30 #include "thr_uberdata.h" 31 #include <sys/types.h> 32 #include <sys/time.h> 33 #include <errno.h> 34 #include <synch.h> 35 #include <sys/synch32.h> 36 #include <sys/lwp.h> 37 38 extern int ___lwp_mutex_timedlock(mutex_t *, timespec_t *); 39 extern int ___lwp_sema_timedwait(lwp_sema_t *, timespec_t *, int); 40 41 int 42 _lwp_mutex_lock(mutex_t *mp) 43 { 44 if (set_lock_byte(&mp->mutex_lockw) == 0) 45 return (0); 46 return (___lwp_mutex_timedlock(mp, NULL)); 47 } 48 49 int 50 _lwp_mutex_trylock(mutex_t *mp) 51 { 52 if (set_lock_byte(&mp->mutex_lockw) == 0) 53 return (0); 54 return (EBUSY); 55 } 56 57 int 58 _lwp_sema_init(lwp_sema_t *sp, int count) 59 { 60 sp->sema_count = count; 61 sp->sema_waiters = 0; 62 sp->type = USYNC_PROCESS; 63 return (0); 64 } 65 66 int 67 _lwp_sema_wait(lwp_sema_t *sp) 68 { 69 return (___lwp_sema_timedwait(sp, NULL, 0)); 70 } 71 72 int 73 _lwp_suspend(lwpid_t lwpid) 74 { 75 extern int ___lwp_suspend(lwpid_t); 76 return (___lwp_suspend(lwpid)); 77 } 78