/* Test for timeout handling.

   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/>.  */

#include <aio.h>

#include <errno.h>

#include <stdio.h>

#include <unistd.h>

#include <sys/time.h>

/* We expect to wait for 3 seconds so we have to increase the timeout.  */

#define TIMEOUT 10 /* sec */

#define TEST_FUNCTION do_test ()

static int

do_test (void)

{

  struct aiocb *arr[1];

  struct aiocb cb;

  char buf[100];

  struct timeval before;

  struct timeval after;

  struct timespec timeout;

  int fd[2];

  int result = 0;

  if (pipe (fd) != 0)

    {

      printf ("cannot create pipe: %m\n");

      return 1;

    }

  arr[0] = &cb;

  cb.aio_fildes = fd[0];

  cb.aio_lio_opcode = LIO_WRITE;

  cb.aio_reqprio = 0;

  cb.aio_buf = (void *) buf;

  cb.aio_nbytes = sizeof (buf) - 1;

  cb.aio_offset = 0;

  cb.aio_sigevent.sigev_notify = SIGEV_NONE;

  /* Try to read from stdin where nothing will be available.  */

  if (aio_read (arr[0]) < 0)

    {

      if (errno == ENOSYS)

	{

	  puts ("no aio support in this configuration");

	  return 0;

	}

      printf ("aio_read failed: %m\n");

      return 1;

    }

  /* Get the current time.  */

  gettimeofday (&before, NULL);

  /* Wait for input which is unsuccessful and therefore the function will

     time out.  */

  timeout.tv_sec = 3;

  timeout.tv_nsec = 0;

  if (aio_suspend ((const struct aiocb *const*) arr, 1, &timeout) != -1)

    {

      puts ("aio_suspend() didn't return -1");

      result = 1;

    }

  else if (errno != EAGAIN)

    {

      puts ("error not set to EAGAIN");

      result = 1;

    }

  else

    {

      gettimeofday (&after, NULL);

      if (after.tv_sec < before.tv_sec + 1)

	{

	  puts ("timeout came too early");

	  result = 1;

	}

    }

  return result;

}

#include "../test-skeleton.c"