1  /* Copyright (C) 2004-2023 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  #include <pthread.h>
      19  #include <stdio.h>
      20  #include <stdlib.h>
      21  #include <unistd.h>
      22  
      23  #include <support/xunistd.h>
      24  
      25  
      26  static void *
      27  tf (void *arg)
      28  {
      29    int fds[2];
      30    if (pipe (fds) != 0)
      31      {
      32        puts ("pipe failed");
      33        exit (1);
      34      }
      35  
      36    char buf[10];
      37    xread (fds[0], buf, sizeof (buf));
      38  
      39    puts ("read returned");
      40    exit (1);
      41  }
      42  
      43  static pthread_t th;
      44  
      45  static void
      46  __attribute ((destructor))
      47  dest (void)
      48  {
      49    if (pthread_cancel (th) != 0)
      50      {
      51        puts ("cancel failed");
      52        _exit (1);
      53      }
      54    void *r;
      55    if (pthread_join (th, &r) != 0)
      56      {
      57        puts ("join failed");
      58        _exit (1);
      59      }
      60    /* Exit successfully.  */
      61    _exit (0);
      62  }
      63  
      64  void
      65  m (void)
      66  {
      67    if (pthread_create (&th, NULL, tf, NULL) != 0)
      68      {
      69        puts ("create failed");
      70        _exit (1);
      71      }
      72  }