nptl/pthread_attr_setdetachstate.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 "pthreadP.h"
  20
  21
  22 int
  23 __pthread_attr_setdetachstate (pthread_attr_t *attr, int detachstate)
  24 {
  25   struct pthread_attr *iattr;
  26
  27   iattr = (struct pthread_attr *) attr;
  28
  29   /* Catch invalid values.  */
  30   if (detachstate != PTHREAD_CREATE_DETACHED
  31       && __builtin_expect (detachstate != PTHREAD_CREATE_JOINABLE, 0))
  32     return EINVAL;
  33
  34   /* Set the flag.  It is nonzero if threads are created detached.  */
  35   if (detachstate == PTHREAD_CREATE_DETACHED)
  36     iattr->flags |= ATTR_FLAG_DETACHSTATE;
  37   else
  38     iattr->flags &= ~ATTR_FLAG_DETACHSTATE;
  39
  40   return 0;
  41 }
  42 strong_alias (__pthread_attr_setdetachstate, pthread_attr_setdetachstate)