115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2016 Fujitsu Ltd.
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* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
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*/
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/*
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* Test Name: epoll_ctl02.c
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*
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* Description:
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* 1) epoll_ctl(2) fails if epfd is a invalid file descriptor.
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* 2) epoll_ctl(2) fails if fd is a invalid file descriptor.
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* 3) epoll_ctl(2) fails if op is not supported by this interface.
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* 4) epoll_ctl(2) fails if fd is the same as epfd.
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* 5) epoll_ctl(2) fails with EPOLL_CTL_DEL if fd is not registered
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* with this epoll instance.
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* 6) epoll_ctl(2) fails with EPOLL_CTL_MOD if fd is not registered
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* with this epoll instance.
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* 7) epoll_ctl(2) fails with EPOLL_CTL_ADD if fd is already registered
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* with this epoll instance.
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*
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* Expected Result:
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* 1) epoll_ctl(2) should return -1 and set errno to EBADF.
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* 2) epoll_ctl(2) should return -1 and set errno to EBADF.
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* 3) epoll_ctl(2) should return -1 and set errno to EINVAL.
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* 4) epoll_ctl(2) should return -1 and set errno to EINVAL.
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* 5) epoll_ctl(2) should return -1 and set errno to ENOENT.
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* 6) epoll_ctl(2) should return -1 and set errno to ENOENT.
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* 7) epoll_ctl(2) should return -1 and set errno to EEXIST.
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*
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*/
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#include <sys/epoll.h>
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#include <poll.h>
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#include <errno.h>
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#include "tst_test.h"
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static int epfd;
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static int fd[2];
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static int inv = -1;
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static struct epoll_event events[2] = {
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{.events = EPOLLIN},
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{.events = EPOLLOUT},
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};
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static struct testcase {
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int *epfds;
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int opt;
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int *fds;
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struct epoll_event *ts_event;
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int exp_err;
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} tcases[] = {
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{&inv, EPOLL_CTL_ADD, &fd[1], &events[1], EBADF},
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{&epfd, EPOLL_CTL_ADD, &inv, &events[1], EBADF},
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{&epfd, -1, &fd[1], &events[1], EINVAL},
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{&epfd, EPOLL_CTL_ADD, &epfd, &events[1], EINVAL},
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{&epfd, EPOLL_CTL_DEL, &fd[1], &events[1], ENOENT},
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{&epfd, EPOLL_CTL_MOD, &fd[1], &events[1], ENOENT},
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{&epfd, EPOLL_CTL_ADD, &fd[0], &events[0], EEXIST}
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};
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static void setup(void)
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{
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epfd = epoll_create(2);
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if (epfd == -1)
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tst_brk(TBROK | TERRNO, "fail to create epoll instance");
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SAFE_PIPE(fd);
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events[0].data.fd = fd[0];
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events[1].data.fd = fd[1];
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TEST(epoll_ctl(epfd, EPOLL_CTL_ADD, fd[0], &events[0]));
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if (TST_RET == -1)
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tst_brk(TFAIL | TTERRNO, "epoll_ctl() fails to init");
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}
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static void cleanup(void)
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{
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if (epfd)
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SAFE_CLOSE(epfd);
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if (fd[0])
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SAFE_CLOSE(fd[0]);
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if (fd[1])
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SAFE_CLOSE(fd[1]);
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}
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static void verify_epoll_ctl(unsigned int n)
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{
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struct testcase *tc = &tcases[n];
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TEST(epoll_ctl(*tc->epfds, tc->opt, *tc->fds, tc->ts_event));
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if (TST_RET != -1) {
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tst_res(TFAIL, "epoll_ctl() succeeds unexpectedly");
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return;
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}
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if (tc->exp_err == TST_ERR) {
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tst_res(TPASS | TTERRNO, "epoll_ctl() fails as expected");
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} else {
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tst_res(TFAIL | TTERRNO,
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"epoll_ctl() fails unexpectedly, expected %i: %s",
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tc->exp_err, tst_strerrno(tc->exp_err));
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}
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(tcases),
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.setup = setup,
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.cleanup = cleanup,
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.test = verify_epoll_ctl,
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};
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