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glibc/rt/tst-aio6.c
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/* Test for timeout handling. | |
Copyright (C) 2000-2016 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" |