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 */ 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 int 40 _pthread_barrierattr_destroy(pthread_barrierattr_t *attr) 41 { 42 43 if (attr == NULL || *attr == NULL) 44 return (EINVAL); 45 __free(*attr); 46 47 return (0); 48 } 49 50 int 51 _pthread_barrierattr_getpshared(const pthread_barrierattr_t * __restrict attr, 52 int * __restrict pshared) 53 { 54 55 if (attr == NULL || *attr == NULL) 56 return (EINVAL); 57 58 *pshared = (*attr)->pshared; 59 return (0); 60 } 61 62 int 63 _pthread_barrierattr_init(pthread_barrierattr_t *attr) 64 { 65 66 if (attr == NULL) 67 return (EINVAL); 68 69 *attr = __malloc(sizeof(struct __pthread_barrierattr_s)); 70 if (*attr ==NULL) 71 return (ENOMEM); 72 (*attr)->pshared = PTHREAD_PROCESS_PRIVATE; 73 74 return (0); 75 } 76 77 int 78 _pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared) 79 { 80 81 if (attr == NULL || *attr == NULL) 82 return (EINVAL); 83 84 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 85 if (pshared != PTHREAD_PROCESS_PRIVATE) 86 return (EINVAL); 87 88 (*attr)->pshared = pshared; 89 return (0); 90 } 91 92 __strong_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy); 93 __strong_reference(_pthread_barrierattr_init, pthread_barrierattr_init); 94 __strong_reference(_pthread_barrierattr_setpshared, 95 pthread_barrierattr_setpshared); 96 __strong_reference(_pthread_barrierattr_getpshared, 97 pthread_barrierattr_getpshared); 98