sysdeps/pthread/tst-exit1.c

   1 /* Copyright (C) 2002-2020 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    <https://www.gnu.org/licenses/>.  */
  18
  19 /* NOTE: this tests functionality beyond POSIX.  POSIX does not allow
  20    exit to be called more than once.  */
  21
  22 #include <pthread.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 static pthread_barrier_t b;
  27
  28
  29 static void *
  30 tf (void *arg)
  31 {
  32   int r = pthread_barrier_wait (&b);
  33   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  34     {
  35       puts ("barrier_wait failed");
  36       exit (1);
  37     }
  38
  39   exit (0);
  40 }
  41
  42
  43 static int
  44 do_test (void)
  45 {
  46   if (pthread_barrier_init (&b, NULL, 2) != 0)
  47     {
  48       puts ("barrier_init failed");
  49       exit (1);
  50     }
  51
  52   pthread_t th;
  53   if (pthread_create (&th, NULL, tf, NULL) != 0)
  54     {
  55       puts ("create failed");
  56       exit (1);
  57     }
  58
  59   int r = pthread_barrier_wait (&b);
  60   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  61     {
  62       puts ("barrier_wait failed");
  63       exit (1);
  64     }
  65
  66   /* Do nothing.  */
  67   if (pthread_join (th, NULL) == 0)
  68     {
  69       puts ("join succeeded!?");
  70       exit (1);
  71     }
  72
  73   puts ("join returned!?");
  74   exit (1);
  75 }
  76
  77 #define TEST_FUNCTION do_test ()
  78 #include "../test-skeleton.c"