51 lines · cpp
1//===-- Unittests for epoll_wait ------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8#include "hdr/sys_epoll_macros.h"9#include "hdr/types/struct_epoll_event.h"10#include "src/sys/epoll/epoll_create1.h"11#include "src/sys/epoll/epoll_ctl.h"12#include "src/sys/epoll/epoll_wait.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 LlvmLibcEpollWaitTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;21 22TEST_F(LlvmLibcEpollWaitTest, 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 // Timeout of 0 causes immediate return. We just need to check that the39 // interface works, we're not testing the kernel behavior here.40 ASSERT_THAT(LIBC_NAMESPACE::epoll_wait(epfd, &event, 1, 0), Succeeds());41 42 ASSERT_THAT(LIBC_NAMESPACE::epoll_wait(-1, &event, 1, 0), Fails(EBADF));43 44 ASSERT_THAT(LIBC_NAMESPACE::epoll_ctl(epfd, EPOLL_CTL_DEL, pipefd[0], &event),45 Succeeds());46 47 ASSERT_THAT(LIBC_NAMESPACE::close(pipefd[0]), Succeeds());48 ASSERT_THAT(LIBC_NAMESPACE::close(pipefd[1]), Succeeds());49 ASSERT_THAT(LIBC_NAMESPACE::close(epfd), Succeeds());50}51