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: releng/10.2/lib/libthr/thread/thr_barrierattr.c 157457 2006-04-04 02:57:49Z davidxu $ 29 */ 30 31#include "namespace.h" 32#include <errno.h> 33#include <stdlib.h> 34#include <pthread.h> 35#include "un-namespace.h" 36 37#include "thr_private.h" 38 39__weak_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy); 40__weak_reference(_pthread_barrierattr_init, pthread_barrierattr_init); 41__weak_reference(_pthread_barrierattr_setpshared, 42 pthread_barrierattr_setpshared); 43__weak_reference(_pthread_barrierattr_getpshared, 44 pthread_barrierattr_getpshared); 45 46int 47_pthread_barrierattr_destroy(pthread_barrierattr_t *attr) 48{ 49 50 if (attr == NULL || *attr == NULL) 51 return (EINVAL); 52 53 free(*attr); 54 return (0); 55} 56 57int 58_pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, 59 int *pshared) 60{ 61 62 if (attr == NULL || *attr == NULL) 63 return (EINVAL); 64 65 *pshared = (*attr)->pshared; 66 return (0); 67} 68 69int 70_pthread_barrierattr_init(pthread_barrierattr_t *attr) 71{ 72 73 if (attr == NULL) 74 return (EINVAL); 75 76 if ((*attr = malloc(sizeof(struct pthread_barrierattr))) == NULL) 77 return (ENOMEM); 78 79 (*attr)->pshared = PTHREAD_PROCESS_PRIVATE; 80 return (0); 81} 82 83int 84_pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared) 85{ 86 87 if (attr == NULL || *attr == NULL) 88 return (EINVAL); 89 90 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 91 if (pshared != PTHREAD_PROCESS_PRIVATE) 92 return (EINVAL); 93 94 (*attr)->pshared = pshared; 95 return (0); 96} 97