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      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 2009 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #include "lint.h"
     28 #include "thr_uberdata.h"
     29 #include <sys/types.h>
     30 #include <sys/time.h>
     31 #include <errno.h>
     32 #include <synch.h>
     33 #include <sys/synch32.h>
     34 #include <sys/lwp.h>
     35 
     36 int
     37 _lwp_mutex_lock(mutex_t *mp)
     38 {
     39 	if (set_lock_byte(&mp->mutex_lockw) == 0)
     40 		return (0);
     41 	return (___lwp_mutex_timedlock(mp, NULL, NULL));
     42 }
     43 
     44 int
     45 _lwp_mutex_trylock(mutex_t *mp)
     46 {
     47 	if (set_lock_byte(&mp->mutex_lockw) == 0)
     48 		return (0);
     49 	return (EBUSY);
     50 }
     51 
     52 int
     53 _lwp_sema_init(lwp_sema_t *sp, int count)
     54 {
     55 	sp->sema_count = count;
     56 	sp->sema_waiters = 0;
     57 	sp->type = USYNC_PROCESS;
     58 	return (0);
     59 }
     60 
     61 int
     62 _lwp_sema_wait(lwp_sema_t *sp)
     63 {
     64 	return (___lwp_sema_timedwait(sp, NULL, 0));
     65 }
     66 
     67 int
     68 _lwp_suspend(lwpid_t lwpid)
     69 {
     70 	extern int ___lwp_suspend(lwpid_t);
     71 	return (___lwp_suspend(lwpid));
     72 }
     73