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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/epoll.h>
#include <unistd.h>
TEST(sys_epoll, smoke) {
int epoll_fd = epoll_create(1);
ASSERT_NE(-1, epoll_fd) << strerror(errno);
epoll_event events[1];
// Regular epoll_wait.
ASSERT_EQ(0, epoll_wait(epoll_fd, events, 1, 1));
// epoll_pwait without a sigset (which is equivalent to epoll_wait).
ASSERT_EQ(0, epoll_pwait(epoll_fd, events, 1, 1, NULL));
// epoll_pwait with a sigset.
sigset_t ss;
sigemptyset(&ss);
sigaddset(&ss, SIGPIPE);
ASSERT_EQ(0, epoll_pwait(epoll_fd, events, 1, 1, &ss));
}
TEST(sys_epoll, epoll_event_data) {
int epoll_fd = epoll_create(1);
ASSERT_NE(-1, epoll_fd) << strerror(errno);
int fds[2];
ASSERT_NE(-1, pipe(fds));
const uint64_t expected = 0x123456789abcdef0;
// Get ready to poll on read end of pipe.
epoll_event ev;
ev.events = EPOLLIN;
ev.data.u64 = expected;
ASSERT_NE(-1, epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fds[0], &ev));
// Ensure there's something in the pipe.
ASSERT_EQ(1, write(fds[1], "\n", 1));
// Poll.
epoll_event events[1];
ASSERT_EQ(1, epoll_wait(epoll_fd, events, 1, 1));
ASSERT_EQ(expected, events[0].data.u64);
close(fds[0]);
close(fds[1]);
}
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