nptl/tst-stdio1.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 <pthread.h>
  20 #include <signal.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23
  24 static int do_test (void);
  25
  26 #define TEST_FUNCTION do_test ()
  27 #include "../test-skeleton.c"
  28
  29 static void *tf (void *a)
  30 {
  31   flockfile (stdout);
  32   /* This call should never return.  */
  33   return a;
  34 }
  35
  36
  37 int
  38 do_test (void)
  39 {
  40   pthread_t th;
  41
  42   flockfile (stdout);
  43
  44   if (pthread_create (&th, NULL, tf, NULL) != 0)
  45     {
  46       write_message ("create failed\n");
  47       _exit (1);
  48     }
  49
  50   delayed_exit (1);
  51   xpthread_join (th);
  52
  53   puts ("join returned");
  54
  55   return 1;
  56 }