android13/external/ltp/testcases/kernel/syscalls/epoll_wait/epoll_wait02.c

73 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2016 Fujitsu Ltd.
* Author: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
* Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
*/
/*
* Check that epoll_wait(2) timeouts correctly.
*/
#include <sys/epoll.h>
#include <unistd.h>
#include <errno.h>
#include "tst_timer_test.h"
static int epfd, fds[2];
static struct epoll_event epevs[1] = {
{.events = EPOLLIN}
};
int sample_fn(int clk_id, long long usec)
{
unsigned int sleep_ms = usec / 1000;
tst_timer_start(clk_id);
TEST(epoll_wait(epfd, epevs, 1, sleep_ms));
tst_timer_stop();
tst_timer_sample();
if (TST_RET != 0) {
tst_res(TFAIL | TTERRNO,
"epoll_wait() returned %li", TST_RET);
return 1;
}
return 0;
}
static void setup(void)
{
SAFE_PIPE(fds);
epfd = epoll_create(1);
if (epfd == -1)
tst_brk(TBROK | TERRNO, "epoll_create()");
epevs[0].data.fd = fds[0];
if (epoll_ctl(epfd, EPOLL_CTL_ADD, fds[0], &epevs[0]))
tst_brk(TBROK | TERRNO, "epoll_clt(..., EPOLL_CTL_ADD, ...)");
}
static void cleanup(void)
{
if (epfd > 0)
SAFE_CLOSE(epfd);
if (fds[0] > 0)
SAFE_CLOSE(fds[0]);
if (fds[1] > 0)
SAFE_CLOSE(fds[1]);
}
static struct tst_test test = {
.scall = "epoll_wait()",
.sample = sample_fn,
.setup = setup,
.cleanup = cleanup,
};