unplugged-system/external/ltp/testcases/kernel/syscalls/epoll_pwait/epoll_pwait02.c

67 lines
1.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) Huawei Technologies Co., Ltd. 2021. All rights reserved.
* Author: Xie Ziyao <xieziyao@huawei.com>
*/
/*\
* [Description]
*
* Basic test for epoll_pwait and epoll_pwait2. Checks if data avaiable in a
* file descriptor are reported correctly in the syscall return value.
*/
#include <sys/epoll.h>
#include "tst_test.h"
#include "epoll_pwait_var.h"
static int efd, sfd[2];
static struct epoll_event e;
static void run(void)
{
TEST(do_epoll_pwait(efd, &e, 1, -1, NULL));
if (TST_RET == 1) {
tst_res(TPASS, "do_epoll_pwait() succeeded");
return;
}
tst_res(TFAIL, "do_epoll_pwait() returned %li, expected 1", TST_RET);
}
static void setup(void)
{
epoll_pwait_info();
SAFE_SOCKETPAIR(AF_UNIX, SOCK_STREAM, 0, sfd);
efd = epoll_create(1);
if (efd == -1)
tst_brk(TBROK | TERRNO, "epoll_create()");
e.events = EPOLLIN;
if (epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e))
tst_brk(TBROK | TERRNO, "epoll_clt(..., EPOLL_CTL_ADD, ...)");
SAFE_WRITE(SAFE_WRITE_ALL, sfd[1], "w", 1);
}
static void cleanup(void)
{
if (efd > 0)
SAFE_CLOSE(efd);
if (sfd[0] > 0)
SAFE_CLOSE(sfd[0]);
if (sfd[1] > 0)
SAFE_CLOSE(sfd[1]);
}
static struct tst_test test = {
.test_all = run,
.setup = setup,
.cleanup = cleanup,
.test_variants = TEST_VARIANTS,
};