nptl/pthread_attr_setschedparam.c

   1 /* Copyright (C) 2002-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <string.h>
  20 #include "pthreadP.h"
  21
  22
  23 int
  24 __pthread_attr_setschedparam (pthread_attr_t *attr,
  25                               const struct sched_param *param)
  26 {
  27   struct pthread_attr *iattr = (struct pthread_attr *) attr;
  28
  29   int ret = check_sched_priority_attr (param->sched_priority,
  30                                        iattr->schedpolicy);
  31   if (ret)
  32     return ret;
  33
  34   /* Copy the new values.  */
  35   memcpy (&iattr->schedparam, param, sizeof (struct sched_param));
  36
  37   /* Remember we set the value.  */
  38   iattr->flags |= ATTR_FLAG_SCHED_SET;
  39
  40   return 0;
  41 }
  42 strong_alias (__pthread_attr_setschedparam, pthread_attr_setschedparam)