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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "mojo/system/embedder/embedder.h" | |
| 6 | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/location.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/macros.h" | |
| 13 #include "base/message_loop/message_loop.h" | |
| 14 #include "base/synchronization/waitable_event.h" | |
| 15 #include "mojo/common/test/multiprocess_test_helper.h" | |
| 16 #include "mojo/public/system/core.h" | |
| 17 #include "mojo/system/embedder/platform_channel_pair.h" | |
| 18 #include "mojo/system/embedder/test_embedder.h" | |
| 19 #include "mojo/system/test_utils.h" | |
| 20 #include "testing/gtest/include/gtest/gtest.h" | |
| 21 | |
| 22 namespace mojo { | |
| 23 namespace embedder { | |
| 24 namespace { | |
| 25 | |
| 26 class ScopedTestChannel { | |
| 27 public: | |
| 28 // Creates a channel that lives on a given I/O thread (determined by the given | |
| 29 // |TaskRunner|) attached to the given |platform_handle|. After construction, | |
| 30 // |bootstrap_message_pipe()| gives the Mojo handle for the bootstrap message | |
| 31 // pipe on this channel; it is up to the caller to close this handle. | |
| 32 // Note: The I/O thread must outlive this object (and its message loop must | |
| 33 // continue pumping messages while this object is alive). | |
| 34 ScopedTestChannel(scoped_refptr<base::TaskRunner> io_thread_task_runner, | |
| 35 ScopedPlatformHandle platform_handle) | |
| 36 : io_thread_task_runner_(io_thread_task_runner), | |
| 37 bootstrap_message_pipe_(MOJO_HANDLE_INVALID), | |
| 38 did_create_channel_event_(true, false), | |
| 39 channel_info_(NULL) { | |
| 40 bootstrap_message_pipe_ = CreateChannel( | |
| 41 platform_handle.Pass(), io_thread_task_runner_, | |
| 42 base::Bind(&ScopedTestChannel::DidCreateChannel, | |
| 43 base::Unretained(this))); | |
| 44 CHECK_NE(bootstrap_message_pipe_, MOJO_HANDLE_INVALID); | |
| 45 } | |
| 46 | |
| 47 // Destructor: Shuts down the channel. (As noted above, for this to happen, | |
| 48 // the I/O thread must be alive and pumping messages.) | |
| 49 ~ScopedTestChannel() { | |
| 50 system::test::PostTaskAndWait( | |
| 51 io_thread_task_runner_, | |
| 52 FROM_HERE, | |
| 53 base::Bind(&ScopedTestChannel::DestroyChannel, base::Unretained(this))); | |
| 54 } | |
| 55 | |
| 56 // Waits for channel creation to be completed. | |
| 57 void WaitForChannelCreationCompletion() { | |
| 58 did_create_channel_event_.Wait(); | |
| 59 } | |
| 60 | |
| 61 MojoHandle bootstrap_message_pipe() const { return bootstrap_message_pipe_; } | |
| 62 | |
| 63 // Call only after |WaitForChannelCreationCompletion()|. Use only to check | |
| 64 // that it's not null. | |
| 65 const ChannelInfo* channel_info() const { return channel_info_; } | |
| 66 | |
| 67 private: | |
| 68 void DidCreateChannel(ChannelInfo* channel_info) { | |
| 69 CHECK(channel_info); | |
| 70 CHECK(!channel_info_); | |
| 71 channel_info_ = channel_info; | |
| 72 did_create_channel_event_.Signal(); | |
| 73 } | |
| 74 | |
| 75 void DestroyChannel() { | |
| 76 CHECK(channel_info_); | |
| 77 DestroyChannelOnIOThread(channel_info_); | |
| 78 channel_info_ = NULL; | |
| 79 } | |
| 80 | |
| 81 scoped_refptr<base::TaskRunner> io_thread_task_runner_; | |
| 82 | |
| 83 // Valid from creation until whenever it gets closed (by the "owner" of this | |
| 84 // object). | |
| 85 MojoHandle bootstrap_message_pipe_; | |
| 86 | |
| 87 // Set after channel creation has been completed (i.e., the callback to | |
| 88 // |CreateChannel()| has been called). | |
| 89 base::WaitableEvent did_create_channel_event_; | |
| 90 | |
| 91 // Valid after channel creation completion until destruction. | |
| 92 ChannelInfo* channel_info_; | |
| 93 | |
| 94 DISALLOW_COPY_AND_ASSIGN(ScopedTestChannel); | |
| 95 }; | |
| 96 | |
| 97 class EmbedderTest : public testing::Test { | |
| 98 public: | |
| 99 EmbedderTest() : test_io_thread_(system::test::TestIOThread::kAutoStart) {} | |
| 100 virtual ~EmbedderTest() {} | |
| 101 | |
| 102 protected: | |
| 103 system::test::TestIOThread* test_io_thread() { return &test_io_thread_; } | |
| 104 | |
| 105 private: | |
| 106 system::test::TestIOThread test_io_thread_; | |
| 107 | |
| 108 DISALLOW_COPY_AND_ASSIGN(EmbedderTest); | |
| 109 }; | |
| 110 | |
| 111 TEST_F(EmbedderTest, ChannelsBasic) { | |
| 112 Init(); | |
| 113 | |
| 114 { | |
| 115 PlatformChannelPair channel_pair; | |
| 116 ScopedTestChannel server_channel(test_io_thread()->task_runner(), | |
| 117 channel_pair.PassServerHandle()); | |
| 118 MojoHandle server_mp = server_channel.bootstrap_message_pipe(); | |
| 119 EXPECT_NE(server_mp, MOJO_HANDLE_INVALID); | |
| 120 ScopedTestChannel client_channel(test_io_thread()->task_runner(), | |
| 121 channel_pair.PassClientHandle()); | |
| 122 MojoHandle client_mp = client_channel.bootstrap_message_pipe(); | |
| 123 EXPECT_NE(client_mp, MOJO_HANDLE_INVALID); | |
| 124 | |
| 125 // We can write to a message pipe handle immediately. | |
| 126 const char kHello[] = "hello"; | |
| 127 EXPECT_EQ(MOJO_RESULT_OK, | |
| 128 MojoWriteMessage(server_mp, kHello, | |
| 129 static_cast<uint32_t>(sizeof(kHello)), NULL, 0, | |
| 130 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 131 | |
| 132 // Now wait for the other side to become readable. | |
| 133 EXPECT_EQ(MOJO_RESULT_OK, | |
| 134 MojoWait(client_mp, MOJO_WAIT_FLAG_READABLE, | |
| 135 MOJO_DEADLINE_INDEFINITE)); | |
| 136 | |
| 137 char buffer[1000] = {}; | |
| 138 uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 139 EXPECT_EQ(MOJO_RESULT_OK, | |
| 140 MojoReadMessage(client_mp, buffer, &num_bytes, NULL, NULL, | |
| 141 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 142 EXPECT_EQ(sizeof(kHello), num_bytes); | |
| 143 EXPECT_STREQ(kHello, buffer); | |
| 144 | |
| 145 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp)); | |
| 146 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp)); | |
| 147 | |
| 148 // By this point, these waits should basically be no-ops (since we've waited | |
| 149 // for the client message pipe to become readable, which implies that both | |
| 150 // the server and client channels were completely created). | |
| 151 server_channel.WaitForChannelCreationCompletion(); | |
| 152 client_channel.WaitForChannelCreationCompletion(); | |
| 153 EXPECT_TRUE(server_channel.channel_info() != NULL); | |
| 154 EXPECT_TRUE(client_channel.channel_info() != NULL); | |
| 155 } | |
| 156 | |
| 157 EXPECT_TRUE(test::Shutdown()); | |
| 158 } | |
| 159 | |
| 160 TEST_F(EmbedderTest, ChannelsHandlePassing) { | |
| 161 Init(); | |
| 162 | |
| 163 { | |
| 164 PlatformChannelPair channel_pair; | |
| 165 ScopedTestChannel server_channel(test_io_thread()->task_runner(), | |
| 166 channel_pair.PassServerHandle()); | |
| 167 MojoHandle server_mp = server_channel.bootstrap_message_pipe(); | |
| 168 EXPECT_NE(server_mp, MOJO_HANDLE_INVALID); | |
| 169 ScopedTestChannel client_channel(test_io_thread()->task_runner(), | |
| 170 channel_pair.PassClientHandle()); | |
| 171 MojoHandle client_mp = client_channel.bootstrap_message_pipe(); | |
| 172 EXPECT_NE(client_mp, MOJO_HANDLE_INVALID); | |
| 173 | |
| 174 MojoHandle h0, h1; | |
| 175 EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(&h0, &h1)); | |
| 176 | |
| 177 // Write a message to |h0| (attaching nothing). | |
| 178 const char kHello[] = "hello"; | |
| 179 EXPECT_EQ(MOJO_RESULT_OK, | |
| 180 MojoWriteMessage(h0, kHello, | |
| 181 static_cast<uint32_t>(sizeof(kHello)), NULL, 0, | |
| 182 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 183 | |
| 184 // Write one message to |server_mp|, attaching |h1|. | |
| 185 const char kWorld[] = "world!!!"; | |
| 186 EXPECT_EQ(MOJO_RESULT_OK, | |
| 187 MojoWriteMessage(server_mp, kWorld, | |
| 188 static_cast<uint32_t>(sizeof(kWorld)), &h1, 1, | |
| 189 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 190 h1 = MOJO_HANDLE_INVALID; | |
| 191 | |
| 192 // Write another message to |h0|. | |
| 193 const char kFoo[] = "foo"; | |
| 194 EXPECT_EQ(MOJO_RESULT_OK, | |
| 195 MojoWriteMessage(h0, kFoo, | |
| 196 static_cast<uint32_t>(sizeof(kFoo)), NULL, 0, | |
| 197 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 198 | |
| 199 // Wait for |client_mp| to become readable. | |
| 200 EXPECT_EQ(MOJO_RESULT_OK, | |
| 201 MojoWait(client_mp, MOJO_WAIT_FLAG_READABLE, | |
| 202 MOJO_DEADLINE_INDEFINITE)); | |
| 203 | |
| 204 // Read a message from |client_mp|. | |
| 205 char buffer[1000] = {}; | |
| 206 uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 207 MojoHandle handles[10] = {}; | |
| 208 uint32_t num_handles = arraysize(handles); | |
| 209 EXPECT_EQ(MOJO_RESULT_OK, | |
| 210 MojoReadMessage(client_mp, buffer, &num_bytes, handles, | |
| 211 &num_handles, MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 212 EXPECT_EQ(sizeof(kWorld), num_bytes); | |
| 213 EXPECT_STREQ(kWorld, buffer); | |
| 214 EXPECT_EQ(1u, num_handles); | |
| 215 EXPECT_NE(handles[0], MOJO_HANDLE_INVALID); | |
| 216 h1 = handles[0]; | |
| 217 | |
| 218 // Wait for |h1| to become readable. | |
| 219 EXPECT_EQ(MOJO_RESULT_OK, | |
| 220 MojoWait(h1, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 221 | |
| 222 // Read a message from |h1|. | |
| 223 memset(buffer, 0, sizeof(buffer)); | |
| 224 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 225 memset(handles, 0, sizeof(handles)); | |
| 226 num_handles = arraysize(handles); | |
| 227 EXPECT_EQ(MOJO_RESULT_OK, | |
| 228 MojoReadMessage(h1, buffer, &num_bytes, handles, &num_handles, | |
| 229 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 230 EXPECT_EQ(sizeof(kHello), num_bytes); | |
| 231 EXPECT_STREQ(kHello, buffer); | |
| 232 EXPECT_EQ(0u, num_handles); | |
| 233 | |
| 234 // Wait for |h1| to become readable (again). | |
| 235 EXPECT_EQ(MOJO_RESULT_OK, | |
| 236 MojoWait(h1, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 237 | |
| 238 // Read the second message from |h1|. | |
| 239 memset(buffer, 0, sizeof(buffer)); | |
| 240 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 241 EXPECT_EQ(MOJO_RESULT_OK, | |
| 242 MojoReadMessage(h1, buffer, &num_bytes, NULL, NULL, | |
| 243 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 244 EXPECT_EQ(sizeof(kFoo), num_bytes); | |
| 245 EXPECT_STREQ(kFoo, buffer); | |
| 246 | |
| 247 // Write a message to |h1|. | |
| 248 const char kBarBaz[] = "barbaz"; | |
| 249 EXPECT_EQ(MOJO_RESULT_OK, | |
| 250 MojoWriteMessage(h1, kBarBaz, | |
| 251 static_cast<uint32_t>(sizeof(kBarBaz)), NULL, 0, | |
| 252 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 253 | |
| 254 // Wait for |h0| to become readable. | |
| 255 EXPECT_EQ(MOJO_RESULT_OK, | |
| 256 MojoWait(h0, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 257 | |
| 258 // Read a message from |h0|. | |
| 259 memset(buffer, 0, sizeof(buffer)); | |
| 260 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 261 EXPECT_EQ(MOJO_RESULT_OK, | |
| 262 MojoReadMessage(h0, buffer, &num_bytes, NULL, NULL, | |
| 263 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 264 EXPECT_EQ(sizeof(kBarBaz), num_bytes); | |
| 265 EXPECT_STREQ(kBarBaz, buffer); | |
| 266 | |
| 267 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp)); | |
| 268 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp)); | |
| 269 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0)); | |
| 270 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h1)); | |
| 271 | |
| 272 server_channel.WaitForChannelCreationCompletion(); | |
| 273 client_channel.WaitForChannelCreationCompletion(); | |
| 274 EXPECT_TRUE(server_channel.channel_info() != NULL); | |
| 275 EXPECT_TRUE(client_channel.channel_info() != NULL); | |
| 276 } | |
| 277 | |
| 278 EXPECT_TRUE(test::Shutdown()); | |
| 279 } | |
| 280 | |
| 281 // The sequence of messages sent is: | |
| 282 // server_mp client_mp mp0 mp1 mp2 mp3 | |
| 283 // 1. "hello" | |
| 284 // 2. "world!" | |
| 285 // 3. "FOO" | |
| 286 // 4. "Bar"+mp1 | |
| 287 // 5. (close) | |
| 288 // 6. (close) | |
| 289 // 7. "baz" | |
| 290 // 8. (closed) | |
| 291 // 9. "quux"+mp2 | |
| 292 // 10. (close) | |
| 293 // 11. (wait/cl.) | |
| 294 // 12. (wait/cl.) | |
| 295 TEST_F(EmbedderTest, MultiprocessChannels) { | |
| 296 Init(); | |
| 297 mojo::test::MultiprocessTestHelper multiprocess_test_helper; | |
| 298 multiprocess_test_helper.StartChild("MultiprocessChannelsClient"); | |
| 299 | |
| 300 { | |
| 301 ScopedTestChannel server_channel( | |
| 302 test_io_thread()->task_runner(), | |
| 303 multiprocess_test_helper.server_platform_handle.Pass()); | |
| 304 MojoHandle server_mp = server_channel.bootstrap_message_pipe(); | |
| 305 EXPECT_NE(server_mp, MOJO_HANDLE_INVALID); | |
| 306 server_channel.WaitForChannelCreationCompletion(); | |
| 307 EXPECT_TRUE(server_channel.channel_info() != NULL); | |
| 308 | |
| 309 // 1. Write a message to |server_mp| (attaching nothing). | |
| 310 const char kHello[] = "hello"; | |
| 311 EXPECT_EQ(MOJO_RESULT_OK, | |
| 312 MojoWriteMessage(server_mp, kHello, | |
| 313 static_cast<uint32_t>(sizeof(kHello)), NULL, 0, | |
| 314 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 315 | |
| 316 // TODO(vtl): If the scope were ended immediately here (maybe after closing | |
| 317 // |server_mp|), we die with a fatal error in |Channel::HandleLocalError()|. | |
| 318 | |
| 319 // 2. Read a message from |server_mp|. | |
| 320 EXPECT_EQ(MOJO_RESULT_OK, | |
| 321 MojoWait(server_mp, MOJO_WAIT_FLAG_READABLE, | |
| 322 MOJO_DEADLINE_INDEFINITE)); | |
| 323 char buffer[1000] = {}; | |
| 324 uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 325 EXPECT_EQ(MOJO_RESULT_OK, | |
| 326 MojoReadMessage(server_mp, buffer, &num_bytes, NULL, NULL, | |
| 327 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 328 const char kWorld[] = "world!"; | |
| 329 EXPECT_EQ(sizeof(kWorld), num_bytes); | |
| 330 EXPECT_STREQ(kWorld, buffer); | |
| 331 | |
| 332 // Create a new message pipe (endpoints |mp0| and |mp1|). | |
| 333 MojoHandle mp0, mp1; | |
| 334 EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(&mp0, &mp1)); | |
| 335 | |
| 336 // 3. Write something to |mp0|. | |
| 337 const char kFoo[] = "FOO"; | |
| 338 EXPECT_EQ(MOJO_RESULT_OK, | |
| 339 MojoWriteMessage(mp0, kFoo, | |
| 340 static_cast<uint32_t>(sizeof(kFoo)), NULL, 0, | |
| 341 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 342 | |
| 343 // 4. Write a message to |server_mp|, attaching |mp1|. | |
| 344 const char kBar[] = "Bar"; | |
| 345 EXPECT_EQ(MOJO_RESULT_OK, | |
| 346 MojoWriteMessage(server_mp, kBar, | |
| 347 static_cast<uint32_t>(sizeof(kBar)), &mp1, 1, | |
| 348 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 349 mp1 = MOJO_HANDLE_INVALID; | |
| 350 | |
| 351 // 5. Close |server_mp|. | |
| 352 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(server_mp)); | |
| 353 | |
| 354 // 9. Read a message from |mp0|, which should have |mp2| attached. | |
| 355 EXPECT_EQ(MOJO_RESULT_OK, | |
| 356 MojoWait(mp0, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 357 memset(buffer, 0, sizeof(buffer)); | |
| 358 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 359 MojoHandle mp2 = MOJO_HANDLE_INVALID; | |
| 360 uint32_t num_handles = 1; | |
| 361 EXPECT_EQ(MOJO_RESULT_OK, | |
| 362 MojoReadMessage(mp0, buffer, &num_bytes, &mp2, &num_handles, | |
| 363 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 364 const char kQuux[] = "quux"; | |
| 365 EXPECT_EQ(sizeof(kQuux), num_bytes); | |
| 366 EXPECT_STREQ(kQuux, buffer); | |
| 367 EXPECT_EQ(1u, num_handles); | |
| 368 EXPECT_NE(mp2, MOJO_HANDLE_INVALID); | |
| 369 | |
| 370 // 7. Read a message from |mp2|. | |
| 371 EXPECT_EQ(MOJO_RESULT_OK, | |
| 372 MojoWait(mp2, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 373 memset(buffer, 0, sizeof(buffer)); | |
| 374 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 375 EXPECT_EQ(MOJO_RESULT_OK, | |
| 376 MojoReadMessage(mp2, buffer, &num_bytes, NULL, NULL, | |
| 377 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 378 const char kBaz[] = "baz"; | |
| 379 EXPECT_EQ(sizeof(kBaz), num_bytes); | |
| 380 EXPECT_STREQ(kBaz, buffer); | |
| 381 | |
| 382 // 10. Close |mp0|. | |
| 383 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp0)); | |
| 384 | |
| 385 // 12. Wait on |mp2| (which should eventually fail) and then close it. | |
| 386 // TODO(vtl): crbug.com/351768 | |
| 387 #if 0 | |
| 388 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, | |
| 389 MojoWait(mp2, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 390 #endif | |
| 391 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp2)); | |
| 392 } | |
| 393 | |
| 394 EXPECT_TRUE(multiprocess_test_helper.WaitForChildTestShutdown()); | |
| 395 EXPECT_TRUE(test::Shutdown()); | |
| 396 } | |
| 397 | |
| 398 MOJO_MULTIPROCESS_TEST_CHILD_TEST(MultiprocessChannelsClient) { | |
| 399 embedder::ScopedPlatformHandle client_platform_handle = | |
| 400 mojo::test::MultiprocessTestHelper::client_platform_handle.Pass(); | |
| 401 EXPECT_TRUE(client_platform_handle.is_valid()); | |
| 402 | |
| 403 system::test::TestIOThread | |
| 404 test_io_thread(system::test::TestIOThread::kAutoStart); | |
| 405 Init(); | |
| 406 | |
| 407 { | |
| 408 ScopedTestChannel client_channel(test_io_thread.task_runner(), | |
| 409 client_platform_handle.Pass()); | |
| 410 MojoHandle client_mp = client_channel.bootstrap_message_pipe(); | |
| 411 EXPECT_NE(client_mp, MOJO_HANDLE_INVALID); | |
| 412 client_channel.WaitForChannelCreationCompletion(); | |
| 413 CHECK(client_channel.channel_info() != NULL); | |
| 414 | |
| 415 // 1. Read the first message from |client_mp|. | |
| 416 EXPECT_EQ(MOJO_RESULT_OK, | |
| 417 MojoWait(client_mp, MOJO_WAIT_FLAG_READABLE, | |
| 418 MOJO_DEADLINE_INDEFINITE)); | |
| 419 char buffer[1000] = {}; | |
| 420 uint32_t num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 421 EXPECT_EQ(MOJO_RESULT_OK, | |
| 422 MojoReadMessage(client_mp, buffer, &num_bytes, NULL, NULL, | |
| 423 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 424 const char kHello[] = "hello"; | |
| 425 EXPECT_EQ(sizeof(kHello), num_bytes); | |
| 426 EXPECT_STREQ(kHello, buffer); | |
| 427 | |
| 428 // 2. Write a message to |client_mp| (attaching nothing). | |
| 429 const char kWorld[] = "world!"; | |
| 430 EXPECT_EQ(MOJO_RESULT_OK, | |
| 431 MojoWriteMessage(client_mp, kWorld, | |
| 432 static_cast<uint32_t>(sizeof(kWorld)), NULL, 0, | |
| 433 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 434 | |
| 435 // 4. Read a message from |client_mp|, which should have |mp1| attached. | |
| 436 EXPECT_EQ(MOJO_RESULT_OK, | |
| 437 MojoWait(client_mp, MOJO_WAIT_FLAG_READABLE, | |
| 438 MOJO_DEADLINE_INDEFINITE)); | |
| 439 // TODO(vtl): If the scope were to end here (and |client_mp| closed), we'd | |
| 440 // die (again due to |Channel::HandleLocalError()|). | |
| 441 memset(buffer, 0, sizeof(buffer)); | |
| 442 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 443 MojoHandle mp1 = MOJO_HANDLE_INVALID; | |
| 444 uint32_t num_handles = 1; | |
| 445 EXPECT_EQ(MOJO_RESULT_OK, | |
| 446 MojoReadMessage(client_mp, buffer, &num_bytes, &mp1, &num_handles, | |
| 447 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 448 const char kBar[] = "Bar"; | |
| 449 EXPECT_EQ(sizeof(kBar), num_bytes); | |
| 450 EXPECT_STREQ(kBar, buffer); | |
| 451 EXPECT_EQ(1u, num_handles); | |
| 452 EXPECT_NE(mp1, MOJO_HANDLE_INVALID); | |
| 453 // TODO(vtl): If the scope were to end here (and the two handles closed), | |
| 454 // we'd die due to |Channel::RunRemoteMessagePipeEndpoint()| not handling | |
| 455 // write errors (assuming the parent had closed the pipe). | |
| 456 | |
| 457 // 6. Close |client_mp|. | |
| 458 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(client_mp)); | |
| 459 | |
| 460 // Create a new message pipe (endpoints |mp2| and |mp3|). | |
| 461 MojoHandle mp2, mp3; | |
| 462 EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(&mp2, &mp3)); | |
| 463 | |
| 464 // 7. Write a message to |mp3|. | |
| 465 const char kBaz[] = "baz"; | |
| 466 EXPECT_EQ(MOJO_RESULT_OK, | |
| 467 MojoWriteMessage(mp3, kBaz, | |
| 468 static_cast<uint32_t>(sizeof(kBaz)), NULL, 0, | |
| 469 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 470 | |
| 471 // 8. Close |mp3|. | |
| 472 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp3)); | |
| 473 | |
| 474 // 9. Write a message to |mp1|, attaching |mp2|. | |
| 475 const char kQuux[] = "quux"; | |
| 476 EXPECT_EQ(MOJO_RESULT_OK, | |
| 477 MojoWriteMessage(mp1, kQuux, | |
| 478 static_cast<uint32_t>(sizeof(kQuux)), &mp2, 1, | |
| 479 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 480 mp2 = MOJO_HANDLE_INVALID; | |
| 481 | |
| 482 // 3. Read a message from |mp1|. | |
| 483 EXPECT_EQ(MOJO_RESULT_OK, | |
| 484 MojoWait(mp1, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 485 memset(buffer, 0, sizeof(buffer)); | |
| 486 num_bytes = static_cast<uint32_t>(sizeof(buffer)); | |
| 487 EXPECT_EQ(MOJO_RESULT_OK, | |
| 488 MojoReadMessage(mp1, buffer, &num_bytes, NULL, NULL, | |
| 489 MOJO_READ_MESSAGE_FLAG_NONE)); | |
| 490 const char kFoo[] = "FOO"; | |
| 491 EXPECT_EQ(sizeof(kFoo), num_bytes); | |
| 492 EXPECT_STREQ(kFoo, buffer); | |
| 493 | |
| 494 // 11. Wait on |mp1| (which should eventually fail) and then close it. | |
| 495 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, | |
| 496 MojoWait(mp1, MOJO_WAIT_FLAG_READABLE, MOJO_DEADLINE_INDEFINITE)); | |
| 497 EXPECT_EQ(MOJO_RESULT_OK, MojoClose(mp1)); | |
| 498 } | |
| 499 | |
| 500 EXPECT_TRUE(test::Shutdown()); | |
| 501 } | |
| 502 | |
| 503 // TODO(vtl): Test immediate write & close. | |
| 504 // TODO(vtl): Test broken-connection cases. | |
| 505 | |
| 506 } // namespace | |
| 507 } // namespace embedder | |
| 508 } // namespace mojo | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 203373004:
Mojo: Move mojo/system/embedder to mojo/embedder. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src