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/sys/epoll/epoll_create1.h"
12#include "src/sys/epoll/epoll_ctl.h"
13#include "src/unistd/close.h"
14#include "src/unistd/pipe.h"
15#include "test/UnitTest/ErrnoCheckingTest.h"
16#include "test/UnitTest/ErrnoSetterMatcher.h"
17#include "test/UnitTest/Test.h"
18
19using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;
20using LlvmLibcEpollCtlTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;
21
22TEST_F(LlvmLibcEpollCtlTest, Basic) {
23 int epfd = LIBC_NAMESPACE::epoll_create1(0);
24 ASSERT_GT(epfd, 0);
25 ASSERT_ERRNO_SUCCESS();
26
27 int pipefd[2];
28
29 ASSERT_THAT(LIBC_NAMESPACE::pipe(pipefd), Succeeds());
30
31 epoll_event event;
32 event.events = EPOLLOUT;
33 event.data.fd = pipefd[0];
34
35 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_ADD, pipefd[0], &event),
36 Succeeds());
37
38 // adding the same file fail.
39 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_ADD, pipefd[0], &event),
40 Fails(EEXIST));
41
42 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_DEL, pipefd[0], &event),
43 Succeeds());
44
45 ASSERT_THAT(LIBC_NAMESPACE::close(pipefd[0]), Succeeds());
46 ASSERT_THAT(LIBC_NAMESPACE::close(pipefd[1]), Succeeds());
47 ASSERT_THAT(LIBC_NAMESPACE::close(epfd), Succeeds());
48}
49

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