thr_condattr.c revision 267654
1/* 2 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. 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, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the author nor the names of any co-contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: releng/9.3/lib/libthr/thread/thr_condattr.c 208503 2010-05-24 13:44:39Z deischen $ 30 */ 31 32#include "namespace.h" 33#include <stdlib.h> 34#include <string.h> 35#include <errno.h> 36#include <pthread.h> 37#include "un-namespace.h" 38 39#include "thr_private.h" 40 41__weak_reference(_pthread_condattr_init, pthread_condattr_init); 42__weak_reference(_pthread_condattr_destroy, pthread_condattr_destroy); 43__weak_reference(_pthread_condattr_getclock, pthread_condattr_getclock); 44__weak_reference(_pthread_condattr_setclock, pthread_condattr_setclock); 45__weak_reference(_pthread_condattr_getpshared, pthread_condattr_getpshared); 46__weak_reference(_pthread_condattr_setpshared, pthread_condattr_setpshared); 47 48int 49_pthread_condattr_init(pthread_condattr_t *attr) 50{ 51 pthread_condattr_t pattr; 52 int ret; 53 54 if ((pattr = (pthread_condattr_t) 55 malloc(sizeof(struct pthread_cond_attr))) == NULL) { 56 ret = ENOMEM; 57 } else { 58 memcpy(pattr, &_pthread_condattr_default, 59 sizeof(struct pthread_cond_attr)); 60 *attr = pattr; 61 ret = 0; 62 } 63 return (ret); 64} 65 66int 67_pthread_condattr_destroy(pthread_condattr_t *attr) 68{ 69 int ret; 70 71 if (attr == NULL || *attr == NULL) { 72 ret = EINVAL; 73 } else { 74 free(*attr); 75 *attr = NULL; 76 ret = 0; 77 } 78 return(ret); 79} 80 81int 82_pthread_condattr_getclock(const pthread_condattr_t *attr, clockid_t *clock_id) 83{ 84 if (attr == NULL || *attr == NULL) 85 return (EINVAL); 86 *clock_id = (*attr)->c_clockid; 87 return (0); 88} 89 90int 91_pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock_id) 92{ 93 if (attr == NULL || *attr == NULL) 94 return (EINVAL); 95 if (clock_id != CLOCK_REALTIME && 96 clock_id != CLOCK_VIRTUAL && 97 clock_id != CLOCK_PROF && 98 clock_id != CLOCK_MONOTONIC) { 99 return (EINVAL); 100 } 101 (*attr)->c_clockid = clock_id; 102 return (0); 103} 104 105int 106_pthread_condattr_getpshared(const pthread_condattr_t *attr, int *pshared) 107{ 108 if (attr == NULL || *attr == NULL) 109 return (EINVAL); 110 111 *pshared = PTHREAD_PROCESS_PRIVATE; 112 return (0); 113} 114 115int 116_pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared) 117{ 118 if (attr == NULL || *attr == NULL) 119 return (EINVAL); 120 121 if (pshared != PTHREAD_PROCESS_PRIVATE) 122 return (EINVAL); 123 return (0); 124} 125