mirror of git://sourceware.org/git/glibc.git
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
|
/* Test for select timeout.
|
||
|
|
Copyright (C) 2021 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
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <time.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <sys/select.h>
|
||
|
|
#include <support/check.h>
|
||
|
|
#include <support/xtime.h>
|
||
|
|
#include <support/timespec.h>
|
||
|
|
|
||
|
|
#define TST_SELECT_TIMEOUT 1
|
||
|
|
#define TST_SELECT_FD_ERR 2
|
||
|
|
|
||
|
|
static int
|
||
|
|
test_select_timeout (bool zero_tmo)
|
||
|
|
{
|
||
|
|
const int fds = TST_SELECT_FD_ERR;
|
||
|
|
int timeout = TST_SELECT_TIMEOUT;
|
||
|
|
struct timeval to = { 0, 0 };
|
||
|
|
struct timespec ts;
|
||
|
|
fd_set rfds;
|
||
|
|
|
||
|
|
FD_ZERO (&rfds);
|
||
|
|
FD_SET (fds, &rfds);
|
||
|
|
|
||
|
|
if (zero_tmo)
|
||
|
|
timeout = 0;
|
||
|
|
|
||
|
|
to.tv_sec = timeout;
|
||
|
|
ts = xclock_now (CLOCK_REALTIME);
|
||
|
|
ts = timespec_add (ts, (struct timespec) { timeout, 0 });
|
||
|
|
|
||
|
|
/* Wait for timeout. */
|
||
|
|
int ret = select (fds + 1, &rfds, NULL, NULL, &to);
|
||
|
|
if (ret == -1)
|
||
|
|
FAIL_EXIT1 ("select failed: %m\n");
|
||
|
|
|
||
|
|
TEST_TIMESPEC_NOW_OR_AFTER (CLOCK_REALTIME, ts);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
do_test (void)
|
||
|
|
{
|
||
|
|
/* Check if select exits immediately. */
|
||
|
|
test_select_timeout (true);
|
||
|
|
|
||
|
|
/* Check if select exits after specified timeout. */
|
||
|
|
test_select_timeout (false);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <support/test-driver.c>
|