nptl/tst-exit1.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 /* NOTE: this tests functionality beyond POSIX.  POSIX does not allow
  21    exit to be called more than once.  */
  22
  23 #include <pthread.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26
  27 #define N 20
  28
  29 static pthread_barrier_t b;
  30
  31
  32 static void *
  33 tf (void *arg)
  34 {
  35   int r = pthread_barrier_wait (&b);
  36   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  37     {
  38       puts ("barrier_wait failed");
  39       exit (1);
  40     }
  41
  42   exit (0);
  43 }
  44
  45
  46 static int
  47 do_test (void)
  48 {
  49   if (pthread_barrier_init (&b, NULL, N + 1) != 0)
  50     {
  51       puts ("barrier_init failed");
  52       exit (1);
  53     }
  54
  55   pthread_t th[N];
  56   int i;
  57   for (i = 0; i < N; ++i)
  58     if (pthread_create (&th[i], NULL, tf, NULL) != 0)
  59       {
  60         puts ("create failed");
  61         exit (1);
  62       }
  63
  64   int r = pthread_barrier_wait (&b);
  65   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  66     {
  67       puts ("barrier_wait failed");
  68       exit (1);
  69     }
  70
  71   /* Do nothing.  */
  72   if (pthread_join (th[0], NULL) == 0)
  73     {
  74       puts ("join succeeded!?");
  75       exit (1);
  76     }
  77
  78   puts ("join returned!?");
  79   exit (1);
  80 }
  81
  82 #define TEST_FUNCTION do_test ()
  83 #include "../test-skeleton.c"