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 2004 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 _private_lwp_mutex_lock = __lwp_mutex_lock 30 #pragma weak _lwp_mutex_lock = __lwp_mutex_lock 31 #pragma weak _lwp_mutex_trylock = __lwp_mutex_trylock 32 #pragma weak _lwp_sema_init = __lwp_sema_init 33 #pragma weak _lwp_sema_wait = __lwp_sema_wait 34 #pragma weak _lwp_suspend = __lwp_suspend 35 #if defined(__i386) || defined(__amd64) 36 #pragma weak _lwp_private = __lwp_private 37 #endif /* __i386 || __amd64 */ 38 39 #include "synonyms.h" 40 #include "mtlib.h" 41 #include <sys/types.h> 42 #include <sys/time.h> 43 #include <errno.h> 44 #include <synch.h> 45 #include <sys/synch32.h> 46 #include <sys/lwp.h> 47 48 extern int ___lwp_mutex_timedlock(mutex_t *, timespec_t *); 49 extern int ___lwp_sema_timedwait(lwp_sema_t *, timespec_t *, int); 50 extern int set_lock_byte(volatile uint8_t *); 51 52 int 53 _lwp_mutex_lock(mutex_t *mp) 54 { 55 if (set_lock_byte(&mp->mutex_lockw) == 0) 56 return (0); 57 return (___lwp_mutex_timedlock(mp, NULL)); 58 } 59 60 int 61 _lwp_mutex_trylock(mutex_t *mp) 62 { 63 if (set_lock_byte(&mp->mutex_lockw) == 0) 64 return (0); 65 return (EBUSY); 66 } 67 68 int 69 _lwp_sema_init(lwp_sema_t *sp, int count) 70 { 71 sp->sema_count = count; 72 sp->sema_waiters = 0; 73 sp->type = USYNC_PROCESS; 74 return (0); 75 } 76 77 int 78 _lwp_sema_wait(lwp_sema_t *sp) 79 { 80 return (___lwp_sema_timedwait(sp, NULL, 0)); 81 } 82 83 #if defined(__i386) || defined(__amd64) 84 int 85 _lwp_private(int cmd, int which, void *sbase) 86 { 87 extern int ___lwp_private(int, int, void *); 88 return (___lwp_private(cmd, which, sbase)); 89 } 90 #endif /* __i386 || __amd64 */ 91 92 int 93 _lwp_suspend(lwpid_t lwpid) 94 { 95 extern int ___lwp_suspend(lwpid_t); 96 return (___lwp_suspend(lwpid)); 97 } 98 99 void 100 _halt(void) 101 { 102 /*LINTED*/ 103 while (1) 104 continue; 105 } 106