1 /* 2 * Copyright (c) 2003 David Xu <davidxu@freebsd.org>. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice(s), this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified other than the possible 11 * addition of one or more copyright notices. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice(s), this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 26 * DAMAGE. 27 * 28 * $FreeBSD: src/lib/libpthread/thread/thr_barrierattr.c,v 1.1 2003/09/04 14:06:43 davidxu Exp $ 29 * $DragonFly: src/lib/libthread_xu/thread/thr_barrierattr.c,v 1.1 2005/02/01 12:38:27 davidxu Exp $ 30 */ 31 32 #include <errno.h> 33 #include <stdlib.h> 34 #include <pthread.h> 35 #include "thr_private.h" 36 37 __weak_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy); 38 __weak_reference(_pthread_barrierattr_init, pthread_barrierattr_init); 39 __weak_reference(_pthread_barrierattr_setpshared, 40 pthread_barrierattr_setpshared); 41 __weak_reference(_pthread_barrierattr_getpshared, 42 pthread_barrierattr_getpshared); 43 44 int 45 _pthread_barrierattr_destroy(pthread_barrierattr_t *attr) 46 { 47 48 if (attr == NULL || *attr == NULL) 49 return (EINVAL); 50 51 free(*attr); 52 return (0); 53 } 54 55 int 56 _pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, 57 int *pshared) 58 { 59 60 if (attr == NULL || *attr == NULL) 61 return (EINVAL); 62 63 *pshared = (*attr)->pshared; 64 return (0); 65 } 66 67 int 68 _pthread_barrierattr_init(pthread_barrierattr_t *attr) 69 { 70 71 if (attr == NULL) 72 return (EINVAL); 73 74 if ((*attr = malloc(sizeof(struct pthread_barrierattr))) == NULL) 75 return (ENOMEM); 76 77 (*attr)->pshared = PTHREAD_PROCESS_PRIVATE; 78 return (0); 79 } 80 81 int 82 _pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared) 83 { 84 85 if (attr == NULL || *attr == NULL) 86 return (EINVAL); 87 88 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 89 if (pshared != PTHREAD_PROCESS_PRIVATE) 90 return (EINVAL); 91 92 (*attr)->pshared = pshared; 93 return (0); 94 } 95