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"