nptl/pthread_attr_setdetachstate.c

   1 /* Copyright (C) 2002-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include "pthreadP.h"
  21
  22
  23 int
  24 __pthread_attr_setdetachstate (pthread_attr_t *attr, int detachstate)
  25 {
  26   struct pthread_attr *iattr;
  27
  28   iattr = (struct pthread_attr *) attr;
  29
  30   /* Catch invalid values.  */
  31   if (detachstate != PTHREAD_CREATE_DETACHED
  32       && __builtin_expect (detachstate != PTHREAD_CREATE_JOINABLE, 0))
  33     return EINVAL;
  34
  35   /* Set the flag.  It is nonzero if threads are created detached.  */
  36   if (detachstate == PTHREAD_CREATE_DETACHED)
  37     iattr->flags |= ATTR_FLAG_DETACHSTATE;
  38   else
  39     iattr->flags &= ~ATTR_FLAG_DETACHSTATE;
  40
  41   return 0;
  42 }
  43 strong_alias (__pthread_attr_setdetachstate, pthread_attr_setdetachstate)