sysdeps/pthread/tst-exit1.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 /* NOTE: this tests functionality beyond POSIX.  POSIX does not allow
  19    exit to be called more than once.  */
  20
  21 #include <pthread.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 static pthread_barrier_t b;
  26
  27
  28 static void *
  29 tf (void *arg)
  30 {
  31   int r = pthread_barrier_wait (&b);
  32   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  33     {
  34       puts ("barrier_wait failed");
  35       exit (1);
  36     }
  37
  38   exit (0);
  39 }
  40
  41
  42 static int
  43 do_test (void)
  44 {
  45   if (pthread_barrier_init (&b, NULL, 2) != 0)
  46     {
  47       puts ("barrier_init failed");
  48       exit (1);
  49     }
  50
  51   pthread_t th;
  52   if (pthread_create (&th, NULL, tf, NULL) != 0)
  53     {
  54       puts ("create failed");
  55       exit (1);
  56     }
  57
  58   int r = pthread_barrier_wait (&b);
  59   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  60     {
  61       puts ("barrier_wait failed");
  62       exit (1);
  63     }
  64
  65   /* Do nothing.  */
  66   if (pthread_join (th, NULL) == 0)
  67     {
  68       puts ("join succeeded!?");
  69       exit (1);
  70     }
  71
  72   puts ("join returned!?");
  73   exit (1);
  74 }
  75
  76 #define TEST_FUNCTION do_test ()
  77 #include "../test-skeleton.c"