IABSD.fr/src/lib/libc/thread/rthread_condattr.c

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• Author : guenther
  Date : 2017-09-05 02:40:54
  Hash : a5511fa9
  Message : Move mutex, condvar, and thread-specific data routes, pthread_once, and pthread_exit from libpthread to libc, along with low-level bits to support them. Major bump to both libc and libpthread. Requested by libressl team. Ports testing by naddy@ ok kettenis@

• lib/libc/thread/rthread_condattr.c

• /*	$OpenBSD: rthread_condattr.c,v 1.3 2017/09/05 02:40:54 guenther Exp $ */
  /*
   * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
   * Copyright (c) 2012 Philip Guenther <guenther@openbsd.org>
   * All Rights Reserved.
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  /*
   * Condition Variable Attributes
   */
  
  #include <errno.h>
  #include <pthread.h>
  #include <stdlib.h>
  
  #include "rthread.h"
  
  int
  pthread_condattr_init(pthread_condattr_t *attrp)
  {
  	pthread_condattr_t attr;
  
  	attr = calloc(1, sizeof(*attr));
  	if (!attr)
  		return (errno);
  	attr->ca_clock = CLOCK_REALTIME;
  	*attrp = attr;
  
  	return (0);
  }
  
  int
  pthread_condattr_destroy(pthread_condattr_t *attrp)
  {
  	free(*attrp);
  	*attrp = NULL;
  
  	return (0);
  }
  
  int
  pthread_condattr_getclock(const pthread_condattr_t *attr, clockid_t *clock_id)
  {
  	*clock_id = (*attr)->ca_clock;
  	return (0);
  }
  
  int
  pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock_id)
  {
  	if (clock_id != CLOCK_REALTIME && clock_id != CLOCK_MONOTONIC)
  		return (EINVAL);
  	(*attr)->ca_clock = clock_id;
  	return (0);
  }