af33553b47
This basically adds makes use of the C99 restrict keyword, and also adds some 'const's to four threading functions: pthread_mutexattr_gettype(), pthread_mutexattr_getprioceiling(), pthread_mutexattr_getprotocol(), and pthread_mutex_getprioceiling. The changes are in accordance to POSIX/SUSv4-2018. Hinted by: DragonFlyBSD Relnotes: yes MFC after: 1 month Differential Revision: D16722
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "namespace.h"
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <pthread.h>
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#include "un-namespace.h"
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#include "thr_private.h"
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__weak_reference(_pthread_condattr_init, pthread_condattr_init);
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__weak_reference(_pthread_condattr_destroy, pthread_condattr_destroy);
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__weak_reference(_pthread_condattr_getclock, pthread_condattr_getclock);
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__weak_reference(_pthread_condattr_setclock, pthread_condattr_setclock);
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__weak_reference(_pthread_condattr_getpshared, pthread_condattr_getpshared);
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__weak_reference(_pthread_condattr_setpshared, pthread_condattr_setpshared);
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int
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_pthread_condattr_init(pthread_condattr_t *attr)
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{
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pthread_condattr_t pattr;
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int ret;
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if ((pattr = (pthread_condattr_t)
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malloc(sizeof(struct pthread_cond_attr))) == NULL) {
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ret = ENOMEM;
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} else {
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memcpy(pattr, &_pthread_condattr_default,
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sizeof(struct pthread_cond_attr));
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*attr = pattr;
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ret = 0;
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}
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return (ret);
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}
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int
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_pthread_condattr_destroy(pthread_condattr_t *attr)
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{
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int ret;
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if (attr == NULL || *attr == NULL) {
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ret = EINVAL;
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} else {
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free(*attr);
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*attr = NULL;
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ret = 0;
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}
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return(ret);
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}
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int
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_pthread_condattr_getclock(const pthread_condattr_t * __restrict attr,
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clockid_t * __restrict clock_id)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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*clock_id = (*attr)->c_clockid;
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return (0);
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}
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int
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_pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock_id)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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if (clock_id != CLOCK_REALTIME &&
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clock_id != CLOCK_VIRTUAL &&
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clock_id != CLOCK_PROF &&
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clock_id != CLOCK_MONOTONIC) {
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return (EINVAL);
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}
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(*attr)->c_clockid = clock_id;
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return (0);
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}
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int
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_pthread_condattr_getpshared(const pthread_condattr_t * __restrict attr,
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int * __restrict pshared)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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*pshared = (*attr)->c_pshared;
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return (0);
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}
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int
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_pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared)
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{
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if (attr == NULL || *attr == NULL ||
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(pshared != PTHREAD_PROCESS_PRIVATE &&
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pshared != PTHREAD_PROCESS_SHARED))
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return (EINVAL);
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(*attr)->c_pshared = pshared;
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return (0);
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}
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