1//===-- Unittests for epoll_ctl -------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "hdr/sys_epoll_macros.h"
10#include "hdr/types/struct_epoll_event.h"
11#include "src/errno/libc_errno.h"
12#include "src/sys/epoll/epoll_create1.h"
13#include "src/sys/epoll/epoll_ctl.h"
14#include "src/unistd/close.h"
15#include "src/unistd/pipe.h"
16#include "test/UnitTest/ErrnoSetterMatcher.h"
17#include "test/UnitTest/Test.h"
18
19using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;
20
21TEST(LlvmLibcEpollCtlTest, Basic) {
22 int epfd = LIBC_NAMESPACE::epoll_create1(flags: 0);
23 ASSERT_GT(epfd, 0);
24 ASSERT_ERRNO_SUCCESS();
25
26 int pipefd[2];
27
28 ASSERT_THAT(LIBC_NAMESPACE::pipe(pipefd), Succeeds());
29
30 epoll_event event;
31 event.events = EPOLLOUT;
32 event.data.fd = pipefd[0];
33
34 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_ADD, pipefd[0], &event),
35 Succeeds());
36
37 // adding the same file fail.
38 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_ADD, pipefd[0], &event),
39 Fails(EEXIST));
40
41 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_DEL, pipefd[0], &event),
42 Succeeds());
43
44 ASSERT_THAT(LIBC_NAMESPACE::close(pipefd[0]), Succeeds());
45 ASSERT_THAT(LIBC_NAMESPACE::close(pipefd[1]), Succeeds());
46 ASSERT_THAT(LIBC_NAMESPACE::close(epfd), Succeeds());
47}
48

source code of libc/test/src/sys/epoll/linux/epoll_ctl_test.cpp