Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 "fdevent.h" |
| 18 | |
| 19 | #include <gtest/gtest.h> |
| 20 | |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 21 | #include <limits> |
Pirama Arumuga Nainar | 29e3dd8 | 2018-08-08 10:33:24 -0700 | [diff] [blame] | 22 | #include <memory> |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 23 | #include <queue> |
| 24 | #include <string> |
Josh Gao | e1dacfc | 2017-04-12 17:00:49 -0700 | [diff] [blame] | 25 | #include <thread> |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 26 | #include <vector> |
| 27 | |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 28 | #include "adb_io.h" |
Josh Gao | 022d447 | 2016-02-10 14:49:00 -0800 | [diff] [blame] | 29 | #include "fdevent_test.h" |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 30 | |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 31 | class FdHandler { |
| 32 | public: |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 33 | FdHandler(int read_fd, int write_fd, bool use_new_callback) |
| 34 | : read_fd_(read_fd), write_fd_(write_fd) { |
| 35 | if (use_new_callback) { |
| 36 | read_fde_ = fdevent_create(read_fd_, FdEventNewCallback, this); |
| 37 | write_fde_ = fdevent_create(write_fd_, FdEventNewCallback, this); |
| 38 | } else { |
| 39 | read_fde_ = fdevent_create(read_fd_, FdEventCallback, this); |
| 40 | write_fde_ = fdevent_create(write_fd_, FdEventCallback, this); |
| 41 | } |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 42 | fdevent_add(read_fde_, FDE_READ); |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 43 | } |
| 44 | |
| 45 | ~FdHandler() { |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 46 | fdevent_destroy(read_fde_); |
| 47 | fdevent_destroy(write_fde_); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | private: |
| 51 | static void FdEventCallback(int fd, unsigned events, void* userdata) { |
| 52 | FdHandler* handler = reinterpret_cast<FdHandler*>(userdata); |
| 53 | ASSERT_EQ(0u, (events & ~(FDE_READ | FDE_WRITE))) << "unexpected events: " << events; |
| 54 | if (events & FDE_READ) { |
| 55 | ASSERT_EQ(fd, handler->read_fd_); |
| 56 | char c; |
Josh Gao | 022d447 | 2016-02-10 14:49:00 -0800 | [diff] [blame] | 57 | ASSERT_EQ(1, adb_read(fd, &c, 1)); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 58 | handler->queue_.push(c); |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 59 | fdevent_add(handler->write_fde_, FDE_WRITE); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 60 | } |
| 61 | if (events & FDE_WRITE) { |
| 62 | ASSERT_EQ(fd, handler->write_fd_); |
| 63 | ASSERT_FALSE(handler->queue_.empty()); |
| 64 | char c = handler->queue_.front(); |
| 65 | handler->queue_.pop(); |
Josh Gao | 022d447 | 2016-02-10 14:49:00 -0800 | [diff] [blame] | 66 | ASSERT_EQ(1, adb_write(fd, &c, 1)); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 67 | if (handler->queue_.empty()) { |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 68 | fdevent_del(handler->write_fde_, FDE_WRITE); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 73 | static void FdEventNewCallback(fdevent* fde, unsigned events, void* userdata) { |
| 74 | int fd = fde->fd.get(); |
| 75 | FdHandler* handler = reinterpret_cast<FdHandler*>(userdata); |
| 76 | ASSERT_EQ(0u, (events & ~(FDE_READ | FDE_WRITE))) << "unexpected events: " << events; |
| 77 | if (events & FDE_READ) { |
| 78 | ASSERT_EQ(fd, handler->read_fd_); |
| 79 | char c; |
| 80 | ASSERT_EQ(1, adb_read(fd, &c, 1)); |
| 81 | handler->queue_.push(c); |
| 82 | fdevent_add(handler->write_fde_, FDE_WRITE); |
| 83 | } |
| 84 | if (events & FDE_WRITE) { |
| 85 | ASSERT_EQ(fd, handler->write_fd_); |
| 86 | ASSERT_FALSE(handler->queue_.empty()); |
| 87 | char c = handler->queue_.front(); |
| 88 | handler->queue_.pop(); |
| 89 | ASSERT_EQ(1, adb_write(fd, &c, 1)); |
| 90 | if (handler->queue_.empty()) { |
| 91 | fdevent_del(handler->write_fde_, FDE_WRITE); |
| 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 96 | private: |
| 97 | const int read_fd_; |
| 98 | const int write_fd_; |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 99 | fdevent* read_fde_; |
| 100 | fdevent* write_fde_; |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 101 | std::queue<char> queue_; |
| 102 | }; |
| 103 | |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 104 | struct ThreadArg { |
| 105 | int first_read_fd; |
| 106 | int last_write_fd; |
| 107 | size_t middle_pipe_count; |
| 108 | }; |
| 109 | |
Josh Gao | 022d447 | 2016-02-10 14:49:00 -0800 | [diff] [blame] | 110 | TEST_F(FdeventTest, fdevent_terminate) { |
Josh Gao | 022d447 | 2016-02-10 14:49:00 -0800 | [diff] [blame] | 111 | PrepareThread(); |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 112 | TerminateThread(); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 115 | TEST_F(FdeventTest, smoke) { |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 116 | for (bool use_new_callback : {true, false}) { |
| 117 | fdevent_reset(); |
| 118 | const size_t PIPE_COUNT = 10; |
| 119 | const size_t MESSAGE_LOOP_COUNT = 100; |
| 120 | const std::string MESSAGE = "fdevent_test"; |
| 121 | int fd_pair1[2]; |
| 122 | int fd_pair2[2]; |
| 123 | ASSERT_EQ(0, adb_socketpair(fd_pair1)); |
| 124 | ASSERT_EQ(0, adb_socketpair(fd_pair2)); |
| 125 | ThreadArg thread_arg; |
| 126 | thread_arg.first_read_fd = fd_pair1[0]; |
| 127 | thread_arg.last_write_fd = fd_pair2[1]; |
| 128 | thread_arg.middle_pipe_count = PIPE_COUNT; |
| 129 | int writer = fd_pair1[1]; |
| 130 | int reader = fd_pair2[0]; |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 131 | |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 132 | PrepareThread(); |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 133 | |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 134 | std::vector<std::unique_ptr<FdHandler>> fd_handlers; |
| 135 | fdevent_run_on_main_thread([&thread_arg, &fd_handlers, use_new_callback]() { |
| 136 | std::vector<int> read_fds; |
| 137 | std::vector<int> write_fds; |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 138 | |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 139 | read_fds.push_back(thread_arg.first_read_fd); |
| 140 | for (size_t i = 0; i < thread_arg.middle_pipe_count; ++i) { |
| 141 | int fds[2]; |
| 142 | ASSERT_EQ(0, adb_socketpair(fds)); |
| 143 | read_fds.push_back(fds[0]); |
| 144 | write_fds.push_back(fds[1]); |
| 145 | } |
| 146 | write_fds.push_back(thread_arg.last_write_fd); |
| 147 | |
| 148 | for (size_t i = 0; i < read_fds.size(); ++i) { |
| 149 | fd_handlers.push_back( |
| 150 | std::make_unique<FdHandler>(read_fds[i], write_fds[i], use_new_callback)); |
| 151 | } |
| 152 | }); |
| 153 | WaitForFdeventLoop(); |
| 154 | |
| 155 | for (size_t i = 0; i < MESSAGE_LOOP_COUNT; ++i) { |
| 156 | std::string read_buffer = MESSAGE; |
| 157 | std::string write_buffer(MESSAGE.size(), 'a'); |
| 158 | ASSERT_TRUE(WriteFdExactly(writer, read_buffer.c_str(), read_buffer.size())); |
| 159 | ASSERT_TRUE(ReadFdExactly(reader, &write_buffer[0], write_buffer.size())); |
| 160 | ASSERT_EQ(read_buffer, write_buffer); |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 161 | } |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 162 | |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 163 | fdevent_run_on_main_thread([&fd_handlers]() { fd_handlers.clear(); }); |
| 164 | WaitForFdeventLoop(); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 165 | |
Josh Gao | c162c71 | 2019-01-25 15:30:25 -0800 | [diff] [blame^] | 166 | TerminateThread(); |
| 167 | ASSERT_EQ(0, adb_close(writer)); |
| 168 | ASSERT_EQ(0, adb_close(reader)); |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 169 | } |
Yabin Cui | bec02fc | 2015-08-28 15:44:27 -0700 | [diff] [blame] | 170 | } |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 171 | |
| 172 | struct InvalidFdArg { |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 173 | fdevent* fde; |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 174 | unsigned expected_events; |
| 175 | size_t* happened_event_count; |
| 176 | }; |
| 177 | |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 178 | static void InvalidFdEventCallback(int, unsigned events, void* userdata) { |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 179 | InvalidFdArg* arg = reinterpret_cast<InvalidFdArg*>(userdata); |
| 180 | ASSERT_EQ(arg->expected_events, events); |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 181 | fdevent_destroy(arg->fde); |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 182 | if (++*(arg->happened_event_count) == 2) { |
Josh Gao | 022d447 | 2016-02-10 14:49:00 -0800 | [diff] [blame] | 183 | fdevent_terminate_loop(); |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 184 | } |
| 185 | } |
| 186 | |
Josh Gao | e1dacfc | 2017-04-12 17:00:49 -0700 | [diff] [blame] | 187 | static void InvalidFdThreadFunc() { |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 188 | const int INVALID_READ_FD = std::numeric_limits<int>::max() - 1; |
| 189 | size_t happened_event_count = 0; |
| 190 | InvalidFdArg read_arg; |
| 191 | read_arg.expected_events = FDE_READ | FDE_ERROR; |
| 192 | read_arg.happened_event_count = &happened_event_count; |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 193 | read_arg.fde = fdevent_create(INVALID_READ_FD, InvalidFdEventCallback, &read_arg); |
| 194 | fdevent_add(read_arg.fde, FDE_READ); |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 195 | |
| 196 | const int INVALID_WRITE_FD = std::numeric_limits<int>::max(); |
| 197 | InvalidFdArg write_arg; |
| 198 | write_arg.expected_events = FDE_READ | FDE_ERROR; |
| 199 | write_arg.happened_event_count = &happened_event_count; |
Josh Gao | 71f775a | 2018-05-14 11:14:33 -0700 | [diff] [blame] | 200 | write_arg.fde = fdevent_create(INVALID_WRITE_FD, InvalidFdEventCallback, &write_arg); |
| 201 | fdevent_add(write_arg.fde, FDE_WRITE); |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 202 | fdevent_loop(); |
| 203 | } |
| 204 | |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 205 | TEST_F(FdeventTest, invalid_fd) { |
Josh Gao | e1dacfc | 2017-04-12 17:00:49 -0700 | [diff] [blame] | 206 | std::thread thread(InvalidFdThreadFunc); |
| 207 | thread.join(); |
Yabin Cui | a108016 | 2015-09-04 16:19:56 -0700 | [diff] [blame] | 208 | } |
Josh Gao | 4c93639 | 2017-05-03 14:10:39 -0700 | [diff] [blame] | 209 | |
| 210 | TEST_F(FdeventTest, run_on_main_thread) { |
| 211 | std::vector<int> vec; |
| 212 | |
| 213 | PrepareThread(); |
Josh Gao | 4c93639 | 2017-05-03 14:10:39 -0700 | [diff] [blame] | 214 | |
Josh Gao | 1222abc | 2018-03-19 15:19:45 -0700 | [diff] [blame] | 215 | // Block the main thread for a long time while we queue our callbacks. |
| 216 | fdevent_run_on_main_thread([]() { |
| 217 | check_main_thread(); |
| 218 | std::this_thread::sleep_for(std::chrono::seconds(1)); |
| 219 | }); |
| 220 | |
| 221 | for (int i = 0; i < 1000000; ++i) { |
Josh Gao | 4c93639 | 2017-05-03 14:10:39 -0700 | [diff] [blame] | 222 | fdevent_run_on_main_thread([i, &vec]() { |
| 223 | check_main_thread(); |
| 224 | vec.push_back(i); |
| 225 | }); |
| 226 | } |
| 227 | |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 228 | TerminateThread(); |
Josh Gao | 4c93639 | 2017-05-03 14:10:39 -0700 | [diff] [blame] | 229 | |
Josh Gao | 1222abc | 2018-03-19 15:19:45 -0700 | [diff] [blame] | 230 | ASSERT_EQ(1000000u, vec.size()); |
| 231 | for (int i = 0; i < 1000000; ++i) { |
Josh Gao | 4c93639 | 2017-05-03 14:10:39 -0700 | [diff] [blame] | 232 | ASSERT_EQ(i, vec[i]); |
| 233 | } |
| 234 | } |
Josh Gao | e39ccd3 | 2018-02-23 14:37:07 -0800 | [diff] [blame] | 235 | |
| 236 | static std::function<void()> make_appender(std::vector<int>* vec, int value) { |
| 237 | return [vec, value]() { |
| 238 | check_main_thread(); |
| 239 | if (value == 100) { |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | vec->push_back(value); |
| 244 | fdevent_run_on_main_thread(make_appender(vec, value + 1)); |
| 245 | }; |
| 246 | } |
| 247 | |
| 248 | TEST_F(FdeventTest, run_on_main_thread_reentrant) { |
| 249 | std::vector<int> vec; |
| 250 | |
| 251 | PrepareThread(); |
Josh Gao | e39ccd3 | 2018-02-23 14:37:07 -0800 | [diff] [blame] | 252 | fdevent_run_on_main_thread(make_appender(&vec, 0)); |
Josh Gao | 7ab5571 | 2018-03-29 16:27:13 -0700 | [diff] [blame] | 253 | TerminateThread(); |
Josh Gao | e39ccd3 | 2018-02-23 14:37:07 -0800 | [diff] [blame] | 254 | |
| 255 | ASSERT_EQ(100u, vec.size()); |
| 256 | for (int i = 0; i < 100; ++i) { |
| 257 | ASSERT_EQ(i, vec[i]); |
| 258 | } |
| 259 | } |