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 #pragma weak _lwp_mutex_lock = __lwp_mutex_lock 30 #pragma weak _lwp_mutex_trylock = __lwp_mutex_trylock 31 #pragma weak _lwp_sema_init = __lwp_sema_init 32 #pragma weak _lwp_sema_wait = __lwp_sema_wait 33 #pragma weak _lwp_suspend = __lwp_suspend 34 #if defined(__i386) || defined(__amd64) 35 #pragma weak _lwp_private = __lwp_private 36 #endif /* __i386 || __amd64 */ 37 38 #include "synonyms.h" 39 #include "thr_uberdata.h" 40 #include <sys/types.h> 41 #include <sys/time.h> 42 #include <errno.h> 43 #include <synch.h> 44 #include <sys/synch32.h> 45 #include <sys/lwp.h> 46 47 extern int ___lwp_mutex_timedlock(mutex_t *, timespec_t *); 48 extern int ___lwp_sema_timedwait(lwp_sema_t *, timespec_t *, int); 49 50 int 51 _lwp_mutex_lock(mutex_t *mp) 52 { 53 if (set_lock_byte(&mp->mutex_lockw) == 0) 54 return (0); 55 return (___lwp_mutex_timedlock(mp, NULL)); 56 } 57 58 int 59 _lwp_mutex_trylock(mutex_t *mp) 60 { 61 if (set_lock_byte(&mp->mutex_lockw) == 0) 62 return (0); 63 return (EBUSY); 64 } 65 66 int 67 _lwp_sema_init(lwp_sema_t *sp, int count) 68 { 69 sp->sema_count = count; 70 sp->sema_waiters = 0; 71 sp->type = USYNC_PROCESS; 72 return (0); 73 } 74 75 int 76 _lwp_sema_wait(lwp_sema_t *sp) 77 { 78 return (___lwp_sema_timedwait(sp, NULL, 0)); 79 } 80 81 #if defined(__x86) 82 int 83 _lwp_private(int cmd, int which, void *sbase) 84 { 85 extern int ___lwp_private(int, int, void *); 86 return (___lwp_private(cmd, which, sbase)); 87 } 88 #endif /* __x86 */ 89 90 int 91 _lwp_suspend(lwpid_t lwpid) 92 { 93 extern int ___lwp_suspend(lwpid_t); 94 return (___lwp_suspend(lwpid)); 95 } 96