1  /* Test that pthread_kill succeeds for an exited thread.
       2     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       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  /* This test verifies that pthread_kill returns 0 (and not ESRCH) for
      20     a thread that has exited on the kernel side.  */
      21  
      22  #include <stddef.h>
      23  #include <support/support.h>
      24  #include <support/xthread.h>
      25  
      26  static void *
      27  noop_thread (void *closure)
      28  {
      29    return NULL;
      30  }
      31  
      32  static int
      33  do_test (void)
      34  {
      35    pthread_t thr = xpthread_create (NULL, noop_thread, NULL);
      36  
      37    support_wait_for_thread_exit ();
      38  
      39    xpthread_cancel (thr);
      40    xpthread_join (thr);
      41  
      42    return 0;
      43  }
      44  
      45  #include <support/test-driver.c>