/* Test pthread_kill.c.

   Copyright (C) 2000-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library;  if not, see

   <http://www.gnu.org/licenses/>.  */

#define _GNU_SOURCE

#include <pthread.h>

#include <signal.h>

#include <stdio.h>

#include <assert.h>

#include <error.h>

#include <errno.h>

#include <hurd/signal.h>

pthread_t testthread;

int i;

void *

test (void *arg)

{

  error_t err;

  printf ("test: %d\n", pthread_self ());

  err = pthread_kill (pthread_self (), SIGINFO);

  if (err)

    error (1, err, "pthread_kill");

  /* To avoid using condition variables in a signal handler.  */

  while (i == 0)

    sched_yield ();

  return 0;

}

static void

handler (int sig)

{

  assert (pthread_equal (pthread_self (), testthread));

  printf ("handler: %d\n", pthread_self ());

  i = 1;

}

int

main (int argc, char **argv)

{

  error_t err;

  struct sigaction sa;

  void *ret;

  printf ("main: %d\n", pthread_self ());

  sa.sa_handler = handler;

  sa.sa_mask = 0;

  sa.sa_flags = 0;

  err = sigaction (SIGINFO, &sa, 0);

  if (err)

    error (1, err, "sigaction");

  err = pthread_create (&testthread, 0, test, 0);

  if (err)

    error (1, err, "pthread_create");

  err = pthread_join (testthread, &ret;;

  if (err)

    error (1, err, "pthread_join");

  assert (ret == 0);

  return 0;

}