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 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 43 TEST(sys_epoll, epoll_event_data) { 44 int epoll_fd = epoll_create(1); 45 ASSERT_NE(-1, epoll_fd) << strerror(errno); 46 47 int fds[2]; 48 ASSERT_NE(-1, pipe(fds)); 49 50 const uint64_t expected = 0x123456789abcdef0; 51 52 // Get ready to poll on read end of pipe. 53 epoll_event ev; 54 ev.events = EPOLLIN; 55 ev.data.u64 = expected; 56 ASSERT_NE(-1, epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fds[0], &ev)); 57 58 // Ensure there's something in the pipe. 59 ASSERT_EQ(1, write(fds[1], "\n", 1)); 60 61 // Poll. 62 epoll_event events[1]; 63 ASSERT_EQ(1, epoll_wait(epoll_fd, events, 1, 1)); 64 ASSERT_EQ(expected, events[0].data.u64); 65 66 close(fds[0]); 67 close(fds[1]); 68 } 69
