1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include <errno.h>
20 #include <fcntl.h>
21 #include <signal.h>
22 #include <sys/epoll.h>
23 #include <unistd.h>
24
TEST(sys_epoll,smoke)25 TEST(sys_epoll, smoke) {
26 int epoll_fd = epoll_create(1);
27 ASSERT_NE(-1, epoll_fd) << strerror(errno);
28 epoll_event events[1];
29
30 // Regular epoll_wait.
31 ASSERT_EQ(0, epoll_wait(epoll_fd, events, 1, 1));
32
33 // epoll_pwait without a sigset (which is equivalent to epoll_wait).
34 ASSERT_EQ(0, epoll_pwait(epoll_fd, events, 1, 1, NULL));
35
36 // epoll_pwait with a sigset.
37 sigset_t ss;
38 sigemptyset(&ss);
39 sigaddset(&ss, SIGPIPE);
40 ASSERT_EQ(0, epoll_pwait(epoll_fd, events, 1, 1, &ss));
41 }
42
TEST(sys_epoll,epoll_create_invalid_size)43 TEST(sys_epoll, epoll_create_invalid_size) {
44 errno = 0;
45 ASSERT_EQ(-1, epoll_create(0));
46 ASSERT_EQ(EINVAL, errno);
47 }
48
TEST(sys_epoll,epoll_event_data)49 TEST(sys_epoll, epoll_event_data) {
50 int epoll_fd = epoll_create(1);
51 ASSERT_NE(-1, epoll_fd) << strerror(errno);
52
53 int fds[2];
54 ASSERT_NE(-1, pipe(fds));
55
56 const uint64_t expected = 0x123456789abcdef0;
57
58 // Get ready to poll on read end of pipe.
59 epoll_event ev;
60 ev.events = EPOLLIN;
61 ev.data.u64 = expected;
62 ASSERT_NE(-1, epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fds[0], &ev));
63
64 // Ensure there's something in the pipe.
65 ASSERT_EQ(1, write(fds[1], "\n", 1));
66
67 // Poll.
68 epoll_event events[1];
69 ASSERT_EQ(1, epoll_wait(epoll_fd, events, 1, 1));
70 ASSERT_EQ(expected, events[0].data.u64);
71
72 close(fds[0]);
73 close(fds[1]);
74 }
75