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/* 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"
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