nptl/tst-stdio2.c

   1 /* Copyright (C) 2002 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25
  26
  27 static void *tf (void *a)
  28 {
  29   puts ("start tf");
  30
  31   /* Multiple locking, implicitly or explicitly, must be possible.  */
  32   flockfile (stdout);
  33
  34   puts ("after first flockfile");
  35
  36   flockfile (stdout);
  37
  38   puts ("foo");
  39
  40   funlockfile (stdout);
  41
  42   puts ("after first funlockfile");
  43
  44   funlockfile (stdout);
  45
  46   puts ("all done");
  47
  48   return a;
  49 }
  50
  51
  52 int
  53 do_test (void)
  54 {
  55   pthread_t th;
  56
  57   if (pthread_create (&th, NULL, tf, NULL) != 0)
  58     {
  59       write (2, "create failed\n", 14);
  60       _exit (1);
  61     }
  62
  63   void *result;
  64   if (pthread_join (th, &result) != 0)
  65     {
  66       puts ("join failed");
  67       exit (1);
  68     }
  69   else if (result != NULL)
  70     {
  71       printf ("wrong return value: %p, expected %p\n", result, NULL);
  72       exit (1);
  73     }
  74
  75   puts ("join returned succsefully");
  76
  77   return 0;
  78 }
  79
  80
  81 #define TEST_FUNCTION do_test ()
  82 #include "../test-skeleton.c"