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| 1 // Copyright (c) 2011 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 "chrome/browser/net/websocket_experiment/websocket_experiment_task.h" | |
| 6 | |
| 7 #include "base/hash_tables.h" | |
| 8 #include "base/metrics/histogram.h" | |
| 9 #include "chrome/browser/profiles/profile.h" | |
| 10 #include "content/browser/browser_thread.h" | |
| 11 #include "net/base/host_resolver.h" | |
| 12 #include "net/base/load_flags.h" | |
| 13 #include "net/base/net_errors.h" | |
| 14 #include "net/url_request/url_request_context_getter.h" | |
| 15 #include "net/websockets/websocket.h" | |
| 16 | |
| 17 using base::Histogram; | |
| 18 using base::LinearHistogram; | |
| 19 | |
| 20 namespace chrome_browser_net_websocket_experiment { | |
| 21 | |
| 22 static std::string GetProtocolVersionName( | |
| 23 net::WebSocket::ProtocolVersion protocol_version) { | |
| 24 switch (protocol_version) { | |
| 25 case net::WebSocket::DEFAULT_VERSION: | |
| 26 return "default protocol"; | |
| 27 case net::WebSocket::DRAFT75: | |
| 28 return "draft 75 protocol"; | |
| 29 default: | |
| 30 NOTREACHED(); | |
| 31 } | |
| 32 return ""; | |
| 33 } | |
| 34 | |
| 35 URLFetcher* WebSocketExperimentTask::Context::CreateURLFetcher( | |
| 36 const Config& config, URLFetcher::Delegate* delegate) { | |
| 37 net::URLRequestContextGetter* getter = | |
| 38 Profile::Deprecated::GetDefaultRequestContext(); | |
| 39 // Profile::Deprecated::GetDefaultRequestContext() is initialized lazily, on | |
| 40 // the UI thread. So here, where we access it from the IO thread, if the task | |
| 41 // runs before it has gotten lazily initialized yet. | |
| 42 if (!getter) | |
| 43 return NULL; | |
| 44 URLFetcher* fetcher = | |
| 45 new URLFetcher(config.http_url, URLFetcher::GET, delegate); | |
| 46 fetcher->set_request_context(getter); | |
| 47 fetcher->set_load_flags( | |
| 48 net::LOAD_BYPASS_CACHE | net::LOAD_DISABLE_CACHE | | |
| 49 net::LOAD_DO_NOT_SEND_COOKIES | net::LOAD_DO_NOT_SEND_AUTH_DATA | | |
| 50 net::LOAD_IGNORE_CERT_AUTHORITY_INVALID); | |
| 51 return fetcher; | |
| 52 } | |
| 53 | |
| 54 net::WebSocket* WebSocketExperimentTask::Context::CreateWebSocket( | |
| 55 const Config& config, net::WebSocketDelegate* delegate) { | |
| 56 net::URLRequestContextGetter* getter = | |
| 57 Profile::Deprecated::GetDefaultRequestContext(); | |
| 58 // Profile::Deprecated::GetDefaultRequestContext() is initialized lazily, on | |
| 59 // the UI thread. So here, where we access it from the IO thread, if the task | |
| 60 // runs before it has gotten lazily initialized yet. | |
| 61 if (!getter) | |
| 62 return NULL; | |
| 63 net::WebSocket::Request* request( | |
| 64 new net::WebSocket::Request(config.url, | |
| 65 config.ws_protocol, | |
| 66 config.ws_origin, | |
| 67 config.ws_location, | |
| 68 config.protocol_version, | |
| 69 getter->GetURLRequestContext())); | |
| 70 return new net::WebSocket(request, delegate); | |
| 71 } | |
| 72 | |
| 73 // Expects URL Fetch and WebSocket connection handshake will finish in | |
| 74 // a few seconds. | |
| 75 static const int kUrlFetchDeadlineSec = 10; | |
| 76 static const int kWebSocketConnectDeadlineSec = 10; | |
| 77 // Expects WebSocket live experiment server echoes message back within a few | |
| 78 // seconds. | |
| 79 static const int kWebSocketEchoDeadlineSec = 5; | |
| 80 // WebSocket live experiment server keeps idle for 1.5 seconds and sends | |
| 81 // a message. So, expects idle for at least 1 second and expects message | |
| 82 // arrives within 1 second after that. | |
| 83 static const int kWebSocketIdleSec = 1; | |
| 84 static const int kWebSocketPushDeadlineSec = 1; | |
| 85 // WebSocket live experiment server sends "bye" message soon. | |
| 86 static const int kWebSocketByeDeadlineSec = 10; | |
| 87 // WebSocket live experiment server closes after it receives "bye" message. | |
| 88 static const int kWebSocketCloseDeadlineSec = 5; | |
| 89 | |
| 90 // All of above are expected within a few seconds. We'd like to see time | |
| 91 // distribution between 0 to 10 seconds. | |
| 92 static const int kWebSocketTimeSec = 10; | |
| 93 static const int kTimeBucketCount = 50; | |
| 94 | |
| 95 // Holds Histogram objects during experiments run. | |
| 96 static base::hash_map<std::string, Histogram*>* g_histogram_table; | |
| 97 | |
| 98 WebSocketExperimentTask::Config::Config() | |
| 99 : ws_protocol("google-websocket-liveexperiment"), | |
| 100 ws_origin("http://dev.chromium.org/"), | |
| 101 protocol_version(net::WebSocket::DEFAULT_VERSION), | |
| 102 url_fetch_deadline_ms(kUrlFetchDeadlineSec * 1000), | |
| 103 websocket_onopen_deadline_ms(kWebSocketConnectDeadlineSec * 1000), | |
| 104 websocket_hello_message("Hello"), | |
| 105 websocket_hello_echoback_deadline_ms(kWebSocketEchoDeadlineSec * 1000), | |
| 106 // Note: websocket live experiment server is configured to wait 1.5 sec | |
| 107 // in websocket_experiment_def.txt on server. So, client expects idle | |
| 108 // at least 1 sec and expects a message arrival within next 1 sec. | |
| 109 websocket_idle_ms(kWebSocketIdleSec * 1000), | |
| 110 websocket_receive_push_message_deadline_ms( | |
| 111 kWebSocketPushDeadlineSec * 1000), | |
| 112 websocket_bye_message("Bye"), | |
| 113 websocket_bye_deadline_ms(kWebSocketByeDeadlineSec * 1000), | |
| 114 websocket_close_deadline_ms(kWebSocketCloseDeadlineSec * 1000) { | |
| 115 } | |
| 116 | |
| 117 WebSocketExperimentTask::Config::~Config() {} | |
| 118 | |
| 119 WebSocketExperimentTask::WebSocketExperimentTask( | |
| 120 const Config& config, | |
| 121 net::CompletionCallback* callback) | |
| 122 : config_(config), | |
| 123 context_(ALLOW_THIS_IN_INITIALIZER_LIST(new Context())), | |
| 124 method_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)), | |
| 125 callback_(callback), | |
| 126 next_state_(STATE_NONE), | |
| 127 last_websocket_error_(net::OK) { | |
| 128 } | |
| 129 | |
| 130 WebSocketExperimentTask::~WebSocketExperimentTask() { | |
| 131 DCHECK(!websocket_); | |
| 132 } | |
| 133 | |
| 134 /* static */ | |
| 135 void WebSocketExperimentTask::InitHistogram() { | |
| 136 DCHECK(!g_histogram_table); | |
| 137 g_histogram_table = new base::hash_map<std::string, Histogram*>; | |
| 138 } | |
| 139 | |
| 140 static std::string GetCounterNameForConfig( | |
| 141 const WebSocketExperimentTask::Config& config, const std::string& name) { | |
| 142 std::string protocol_version = ""; | |
| 143 switch (config.protocol_version) { | |
| 144 case net::WebSocket::DEFAULT_VERSION: | |
| 145 protocol_version = "Draft76"; | |
| 146 break; | |
| 147 case net::WebSocket::DRAFT75: | |
| 148 protocol_version = ""; | |
| 149 break; | |
| 150 default: | |
| 151 NOTREACHED(); | |
| 152 } | |
| 153 if (config.url.SchemeIs("wss")) { | |
| 154 return "WebSocketExperiment.Secure" + protocol_version + "." + name; | |
| 155 } else if (config.url.has_port() && config.url.IntPort() != 80) { | |
| 156 return "WebSocketExperiment.NoDefaultPort" + protocol_version + "." + name; | |
| 157 } else { | |
| 158 return "WebSocketExperiment.Basic" + protocol_version + "." + name; | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 static Histogram* GetEnumsHistogramForConfig( | |
| 163 const WebSocketExperimentTask::Config& config, | |
| 164 const std::string& name, | |
| 165 Histogram::Sample boundary_value) { | |
| 166 DCHECK(g_histogram_table); | |
| 167 std::string counter_name = GetCounterNameForConfig(config, name); | |
| 168 base::hash_map<std::string, Histogram*>::iterator found = | |
| 169 g_histogram_table->find(counter_name); | |
| 170 if (found != g_histogram_table->end()) { | |
| 171 return found->second; | |
| 172 } | |
| 173 Histogram* counter = LinearHistogram::FactoryGet( | |
| 174 counter_name, 1, boundary_value, boundary_value + 1, | |
| 175 Histogram::kUmaTargetedHistogramFlag); | |
| 176 g_histogram_table->insert(std::make_pair(counter_name, counter)); | |
| 177 return counter; | |
| 178 } | |
| 179 | |
| 180 static Histogram* GetTimesHistogramForConfig( | |
| 181 const WebSocketExperimentTask::Config& config, | |
| 182 const std::string& name, | |
| 183 base::TimeDelta min, | |
| 184 base::TimeDelta max, | |
| 185 size_t bucket_count) { | |
| 186 DCHECK(g_histogram_table); | |
| 187 std::string counter_name = GetCounterNameForConfig(config, name); | |
| 188 base::hash_map<std::string, Histogram*>::iterator found = | |
| 189 g_histogram_table->find(counter_name); | |
| 190 if (found != g_histogram_table->end()) { | |
| 191 return found->second; | |
| 192 } | |
| 193 Histogram* counter = Histogram::FactoryTimeGet( | |
| 194 counter_name, min, max, bucket_count, | |
| 195 Histogram::kUmaTargetedHistogramFlag); | |
| 196 g_histogram_table->insert(std::make_pair(counter_name, counter)); | |
| 197 return counter; | |
| 198 } | |
| 199 | |
| 200 static void UpdateHistogramEnums( | |
| 201 const WebSocketExperimentTask::Config& config, | |
| 202 const std::string& name, | |
| 203 Histogram::Sample sample, | |
| 204 Histogram::Sample boundary_value) { | |
| 205 Histogram* counter = GetEnumsHistogramForConfig(config, name, boundary_value); | |
| 206 counter->Add(sample); | |
| 207 } | |
| 208 | |
| 209 static void UpdateHistogramTimes( | |
| 210 const WebSocketExperimentTask::Config& config, | |
| 211 const std::string& name, | |
| 212 base::TimeDelta sample, | |
| 213 base::TimeDelta min, | |
| 214 base::TimeDelta max, | |
| 215 size_t bucket_count) { | |
| 216 Histogram* counter = GetTimesHistogramForConfig( | |
| 217 config, name, min, max, bucket_count); | |
| 218 counter->AddTime(sample); | |
| 219 } | |
| 220 | |
| 221 /* static */ | |
| 222 void WebSocketExperimentTask::ReleaseHistogram() { | |
| 223 DCHECK(g_histogram_table); | |
| 224 delete g_histogram_table; | |
| 225 g_histogram_table = NULL; | |
| 226 } | |
| 227 | |
| 228 void WebSocketExperimentTask::Run() { | |
| 229 DVLOG(1) << "Run WebSocket experiment for " << config_.url << " " | |
| 230 << GetProtocolVersionName(config_.protocol_version); | |
| 231 next_state_ = STATE_URL_FETCH; | |
| 232 DoLoop(net::OK); | |
| 233 } | |
| 234 | |
| 235 void WebSocketExperimentTask::Cancel() { | |
| 236 next_state_ = STATE_NONE; | |
| 237 DoLoop(net::OK); | |
| 238 } | |
| 239 | |
| 240 void WebSocketExperimentTask::SaveResult() const { | |
| 241 DVLOG(1) << "WebSocket experiment save result for " << config_.url | |
| 242 << " last_state=" << result_.last_state; | |
| 243 UpdateHistogramEnums(config_, "LastState", result_.last_state, NUM_STATES); | |
| 244 UpdateHistogramTimes(config_, "UrlFetch", result_.url_fetch, | |
| 245 base::TimeDelta::FromMilliseconds(1), | |
| 246 base::TimeDelta::FromSeconds(kUrlFetchDeadlineSec), | |
| 247 kTimeBucketCount); | |
| 248 | |
| 249 if (result_.last_state < STATE_WEBSOCKET_CONNECT_COMPLETE) | |
| 250 return; | |
| 251 | |
| 252 UpdateHistogramTimes(config_, "WebSocketConnect", result_.websocket_connect, | |
| 253 base::TimeDelta::FromMilliseconds(1), | |
| 254 base::TimeDelta::FromSeconds( | |
| 255 kWebSocketConnectDeadlineSec), | |
| 256 kTimeBucketCount); | |
| 257 | |
| 258 if (result_.last_state < STATE_WEBSOCKET_RECV_HELLO) | |
| 259 return; | |
| 260 | |
| 261 UpdateHistogramTimes(config_, "WebSocketEcho", result_.websocket_echo, | |
| 262 base::TimeDelta::FromMilliseconds(1), | |
| 263 base::TimeDelta::FromSeconds( | |
| 264 kWebSocketEchoDeadlineSec), | |
| 265 kTimeBucketCount); | |
| 266 | |
| 267 if (result_.last_state < STATE_WEBSOCKET_KEEP_IDLE) | |
| 268 return; | |
| 269 | |
| 270 UpdateHistogramTimes(config_, "WebSocketIdle", result_.websocket_idle, | |
| 271 base::TimeDelta::FromMilliseconds(1), | |
| 272 base::TimeDelta::FromSeconds( | |
| 273 kWebSocketIdleSec + kWebSocketPushDeadlineSec), | |
| 274 kTimeBucketCount); | |
| 275 | |
| 276 if (result_.last_state < STATE_WEBSOCKET_CLOSE_COMPLETE) | |
| 277 return; | |
| 278 | |
| 279 UpdateHistogramTimes(config_, "WebSocketTotal", result_.websocket_total, | |
| 280 base::TimeDelta::FromMilliseconds(1), | |
| 281 base::TimeDelta::FromSeconds(kWebSocketTimeSec), | |
| 282 kTimeBucketCount); | |
| 283 } | |
| 284 | |
| 285 // URLFetcher::Delegate method. | |
| 286 void WebSocketExperimentTask::OnURLFetchComplete( | |
| 287 const URLFetcher* source, | |
| 288 const GURL& url, | |
| 289 const net::URLRequestStatus& status, | |
| 290 int response_code, | |
| 291 const net::ResponseCookies& cookies, | |
| 292 const std::string& data) { | |
| 293 result_.url_fetch = base::TimeTicks::Now() - url_fetch_start_time_; | |
| 294 RevokeTimeoutTimer(); | |
| 295 int result = net::ERR_FAILED; | |
| 296 if (next_state_ != STATE_URL_FETCH_COMPLETE) { | |
| 297 DVLOG(1) << "unexpected state=" << next_state_ | |
| 298 << " at OnURLFetchComplete for " << config_.http_url; | |
| 299 result = net::ERR_UNEXPECTED; | |
| 300 } else if (response_code == 200 || response_code == 304) { | |
| 301 result = net::OK; | |
| 302 } | |
| 303 DoLoop(result); | |
| 304 } | |
| 305 | |
| 306 // net::WebSocketDelegate | |
| 307 void WebSocketExperimentTask::OnOpen(net::WebSocket* websocket) { | |
| 308 result_.websocket_connect = | |
| 309 base::TimeTicks::Now() - websocket_connect_start_time_; | |
| 310 RevokeTimeoutTimer(); | |
| 311 int result = net::ERR_UNEXPECTED; | |
| 312 if (next_state_ == STATE_WEBSOCKET_CONNECT_COMPLETE) | |
| 313 result = net::OK; | |
| 314 else | |
| 315 DVLOG(1) << "unexpected state=" << next_state_ | |
| 316 << " at OnOpen for " << config_.url | |
| 317 << " " << GetProtocolVersionName(config_.protocol_version); | |
| 318 DoLoop(result); | |
| 319 } | |
| 320 | |
| 321 void WebSocketExperimentTask::OnMessage( | |
| 322 net::WebSocket* websocket, const std::string& msg) { | |
| 323 if (!result_.websocket_echo.ToInternalValue()) | |
| 324 result_.websocket_echo = | |
| 325 base::TimeTicks::Now() - websocket_echo_start_time_; | |
| 326 if (!websocket_idle_start_time_.is_null() && | |
| 327 !result_.websocket_idle.ToInternalValue()) | |
| 328 result_.websocket_idle = | |
| 329 base::TimeTicks::Now() - websocket_idle_start_time_; | |
| 330 RevokeTimeoutTimer(); | |
| 331 received_messages_.push_back(msg); | |
| 332 int result = net::ERR_UNEXPECTED; | |
| 333 switch (next_state_) { | |
| 334 case STATE_WEBSOCKET_RECV_HELLO: | |
| 335 case STATE_WEBSOCKET_RECV_PUSH_MESSAGE: | |
| 336 case STATE_WEBSOCKET_RECV_BYE: | |
| 337 result = net::OK; | |
| 338 break; | |
| 339 default: | |
| 340 DVLOG(1) << "unexpected state=" << next_state_ | |
| 341 << " at OnMessage for " << config_.url | |
| 342 << " " << GetProtocolVersionName(config_.protocol_version); | |
| 343 break; | |
| 344 } | |
| 345 DoLoop(result); | |
| 346 } | |
| 347 | |
| 348 void WebSocketExperimentTask::OnError(net::WebSocket* websocket) { | |
| 349 // TODO(ukai): record error count? | |
| 350 } | |
| 351 | |
| 352 void WebSocketExperimentTask::OnClose( | |
| 353 net::WebSocket* websocket, bool was_clean) { | |
| 354 RevokeTimeoutTimer(); | |
| 355 websocket_ = NULL; | |
| 356 result_.websocket_total = | |
| 357 base::TimeTicks::Now() - websocket_connect_start_time_; | |
| 358 int result = net::ERR_CONNECTION_CLOSED; | |
| 359 if (last_websocket_error_ != net::OK) | |
| 360 result = last_websocket_error_; | |
| 361 DVLOG(1) << "WebSocket onclose was_clean=" << was_clean | |
| 362 << " next_state=" << next_state_ | |
| 363 << " last_error=" << net::ErrorToString(result); | |
| 364 if (config_.protocol_version == net::WebSocket::DEFAULT_VERSION) { | |
| 365 if (next_state_ == STATE_WEBSOCKET_CLOSE_COMPLETE && was_clean) | |
| 366 result = net::OK; | |
| 367 } else { | |
| 368 // DRAFT75 doesn't report was_clean correctly. | |
| 369 if (next_state_ == STATE_WEBSOCKET_CLOSE_COMPLETE) | |
| 370 result = net::OK; | |
| 371 } | |
| 372 DoLoop(result); | |
| 373 } | |
| 374 | |
| 375 void WebSocketExperimentTask::OnSocketError( | |
| 376 const net::WebSocket* websocket, int error) { | |
| 377 DVLOG(1) << "WebSocket socket level error=" << net::ErrorToString(error) | |
| 378 << " next_state=" << next_state_ | |
| 379 << " for " << config_.url | |
| 380 << " " << GetProtocolVersionName(config_.protocol_version); | |
| 381 last_websocket_error_ = error; | |
| 382 } | |
| 383 | |
| 384 void WebSocketExperimentTask::SetContext(Context* context) { | |
| 385 context_.reset(context); | |
| 386 } | |
| 387 | |
| 388 void WebSocketExperimentTask::OnTimedOut() { | |
| 389 DVLOG(1) << "OnTimedOut next_state=" << next_state_ | |
| 390 << " for " << config_.url | |
| 391 << " " << GetProtocolVersionName(config_.protocol_version); | |
| 392 RevokeTimeoutTimer(); | |
| 393 DoLoop(net::ERR_TIMED_OUT); | |
| 394 } | |
| 395 | |
| 396 void WebSocketExperimentTask::DoLoop(int result) { | |
| 397 if (next_state_ == STATE_NONE) { | |
| 398 Finish(net::ERR_ABORTED); | |
| 399 return; | |
| 400 } | |
| 401 do { | |
| 402 State state = next_state_; | |
| 403 next_state_ = STATE_NONE; | |
| 404 switch (state) { | |
| 405 case STATE_URL_FETCH: | |
| 406 result = DoURLFetch(); | |
| 407 break; | |
| 408 case STATE_URL_FETCH_COMPLETE: | |
| 409 result = DoURLFetchComplete(result); | |
| 410 break; | |
| 411 case STATE_WEBSOCKET_CONNECT: | |
| 412 result = DoWebSocketConnect(); | |
| 413 break; | |
| 414 case STATE_WEBSOCKET_CONNECT_COMPLETE: | |
| 415 result = DoWebSocketConnectComplete(result); | |
| 416 break; | |
| 417 case STATE_WEBSOCKET_SEND_HELLO: | |
| 418 result = DoWebSocketSendHello(); | |
| 419 break; | |
| 420 case STATE_WEBSOCKET_RECV_HELLO: | |
| 421 result = DoWebSocketReceiveHello(result); | |
| 422 break; | |
| 423 case STATE_WEBSOCKET_KEEP_IDLE: | |
| 424 result = DoWebSocketKeepIdle(); | |
| 425 break; | |
| 426 case STATE_WEBSOCKET_KEEP_IDLE_COMPLETE: | |
| 427 result = DoWebSocketKeepIdleComplete(result); | |
| 428 break; | |
| 429 case STATE_WEBSOCKET_RECV_PUSH_MESSAGE: | |
| 430 result = DoWebSocketReceivePushMessage(result); | |
| 431 break; | |
| 432 case STATE_WEBSOCKET_ECHO_BACK_MESSAGE: | |
| 433 result = DoWebSocketEchoBackMessage(); | |
| 434 break; | |
| 435 case STATE_WEBSOCKET_RECV_BYE: | |
| 436 result = DoWebSocketReceiveBye(result); | |
| 437 break; | |
| 438 case STATE_WEBSOCKET_CLOSE: | |
| 439 result = DoWebSocketClose(); | |
| 440 break; | |
| 441 case STATE_WEBSOCKET_CLOSE_COMPLETE: | |
| 442 result = DoWebSocketCloseComplete(result); | |
| 443 break; | |
| 444 default: | |
| 445 NOTREACHED(); | |
| 446 break; | |
| 447 } | |
| 448 result_.last_state = state; | |
| 449 } while (result != net::ERR_IO_PENDING && next_state_ != STATE_NONE); | |
| 450 | |
| 451 if (result != net::ERR_IO_PENDING) | |
| 452 Finish(result); | |
| 453 } | |
| 454 | |
| 455 int WebSocketExperimentTask::DoURLFetch() { | |
| 456 DCHECK(!url_fetcher_.get()); | |
| 457 | |
| 458 url_fetcher_.reset(context_->CreateURLFetcher(config_, this)); | |
| 459 if (!url_fetcher_.get()) { | |
| 460 // Request context is not ready. | |
| 461 next_state_ = STATE_NONE; | |
| 462 return net::ERR_UNEXPECTED; | |
| 463 } | |
| 464 | |
| 465 next_state_ = STATE_URL_FETCH_COMPLETE; | |
| 466 SetTimeout(config_.url_fetch_deadline_ms); | |
| 467 url_fetch_start_time_ = base::TimeTicks::Now(); | |
| 468 url_fetcher_->Start(); | |
| 469 return net::ERR_IO_PENDING; | |
| 470 } | |
| 471 | |
| 472 int WebSocketExperimentTask::DoURLFetchComplete(int result) { | |
| 473 url_fetcher_.reset(); | |
| 474 | |
| 475 if (result < 0) | |
| 476 return result; | |
| 477 | |
| 478 next_state_ = STATE_WEBSOCKET_CONNECT; | |
| 479 return net::OK; | |
| 480 } | |
| 481 | |
| 482 int WebSocketExperimentTask::DoWebSocketConnect() { | |
| 483 DCHECK(!websocket_); | |
| 484 | |
| 485 websocket_ = context_->CreateWebSocket(config_, this); | |
| 486 if (!websocket_) { | |
| 487 // Request context is not ready. | |
| 488 next_state_ = STATE_NONE; | |
| 489 return net::ERR_UNEXPECTED; | |
| 490 } | |
| 491 next_state_ = STATE_WEBSOCKET_CONNECT_COMPLETE; | |
| 492 websocket_connect_start_time_ = base::TimeTicks::Now(); | |
| 493 websocket_->Connect(); | |
| 494 | |
| 495 SetTimeout(config_.websocket_onopen_deadline_ms); | |
| 496 return net::ERR_IO_PENDING; | |
| 497 } | |
| 498 | |
| 499 int WebSocketExperimentTask::DoWebSocketConnectComplete(int result) { | |
| 500 if (result < 0) | |
| 501 return result; | |
| 502 DCHECK(websocket_); | |
| 503 | |
| 504 next_state_ = STATE_WEBSOCKET_SEND_HELLO; | |
| 505 return net::OK; | |
| 506 } | |
| 507 | |
| 508 int WebSocketExperimentTask::DoWebSocketSendHello() { | |
| 509 DCHECK(websocket_); | |
| 510 | |
| 511 next_state_ = STATE_WEBSOCKET_RECV_HELLO; | |
| 512 | |
| 513 websocket_echo_start_time_ = base::TimeTicks::Now(); | |
| 514 websocket_->Send(config_.websocket_hello_message); | |
| 515 SetTimeout(config_.websocket_hello_echoback_deadline_ms); | |
| 516 return net::ERR_IO_PENDING; | |
| 517 } | |
| 518 | |
| 519 int WebSocketExperimentTask::DoWebSocketReceiveHello(int result) { | |
| 520 if (result < 0) | |
| 521 return result; | |
| 522 | |
| 523 DCHECK(websocket_); | |
| 524 | |
| 525 if (received_messages_.size() != 1) | |
| 526 return net::ERR_INVALID_RESPONSE; | |
| 527 | |
| 528 std::string msg = received_messages_.front(); | |
| 529 received_messages_.pop_front(); | |
| 530 if (msg != config_.websocket_hello_message) | |
| 531 return net::ERR_INVALID_RESPONSE; | |
| 532 | |
| 533 next_state_ = STATE_WEBSOCKET_KEEP_IDLE; | |
| 534 return net::OK; | |
| 535 } | |
| 536 | |
| 537 int WebSocketExperimentTask::DoWebSocketKeepIdle() { | |
| 538 DCHECK(websocket_); | |
| 539 | |
| 540 next_state_ = STATE_WEBSOCKET_KEEP_IDLE_COMPLETE; | |
| 541 websocket_idle_start_time_ = base::TimeTicks::Now(); | |
| 542 SetTimeout(config_.websocket_idle_ms); | |
| 543 return net::ERR_IO_PENDING; | |
| 544 } | |
| 545 | |
| 546 int WebSocketExperimentTask::DoWebSocketKeepIdleComplete(int result) { | |
| 547 if (result != net::ERR_TIMED_OUT) { | |
| 548 // Server sends back too early, or unexpected close? | |
| 549 if (result == net::OK) | |
| 550 result = net::ERR_UNEXPECTED; | |
| 551 return result; | |
| 552 } | |
| 553 | |
| 554 DCHECK(websocket_); | |
| 555 | |
| 556 next_state_ = STATE_WEBSOCKET_RECV_PUSH_MESSAGE; | |
| 557 SetTimeout(config_.websocket_receive_push_message_deadline_ms); | |
| 558 return net::ERR_IO_PENDING; | |
| 559 } | |
| 560 | |
| 561 int WebSocketExperimentTask::DoWebSocketReceivePushMessage(int result) { | |
| 562 if (result < 0) | |
| 563 return result; | |
| 564 | |
| 565 DCHECK(websocket_); | |
| 566 if (received_messages_.size() != 1) | |
| 567 return net::ERR_INVALID_RESPONSE; | |
| 568 | |
| 569 push_message_ = received_messages_.front(); | |
| 570 received_messages_.pop_front(); | |
| 571 | |
| 572 next_state_ = STATE_WEBSOCKET_ECHO_BACK_MESSAGE; | |
| 573 return net::OK; | |
| 574 } | |
| 575 | |
| 576 int WebSocketExperimentTask::DoWebSocketEchoBackMessage() { | |
| 577 DCHECK(websocket_); | |
| 578 DCHECK(!push_message_.empty()); | |
| 579 | |
| 580 next_state_ = STATE_WEBSOCKET_RECV_BYE; | |
| 581 websocket_->Send(push_message_); | |
| 582 SetTimeout(config_.websocket_bye_deadline_ms); | |
| 583 return net::ERR_IO_PENDING; | |
| 584 } | |
| 585 | |
| 586 int WebSocketExperimentTask::DoWebSocketReceiveBye(int result) { | |
| 587 if (result < 0) | |
| 588 return result; | |
| 589 | |
| 590 DCHECK(websocket_); | |
| 591 | |
| 592 if (received_messages_.size() != 1) | |
| 593 return net::ERR_INVALID_RESPONSE; | |
| 594 | |
| 595 std::string bye = received_messages_.front(); | |
| 596 received_messages_.pop_front(); | |
| 597 | |
| 598 if (bye != config_.websocket_bye_message) | |
| 599 return net::ERR_INVALID_RESPONSE; | |
| 600 | |
| 601 next_state_ = STATE_WEBSOCKET_CLOSE; | |
| 602 return net::OK; | |
| 603 } | |
| 604 | |
| 605 int WebSocketExperimentTask::DoWebSocketClose() { | |
| 606 DCHECK(websocket_); | |
| 607 | |
| 608 next_state_ = STATE_WEBSOCKET_CLOSE_COMPLETE; | |
| 609 websocket_->Close(); | |
| 610 SetTimeout(config_.websocket_close_deadline_ms); | |
| 611 return net::ERR_IO_PENDING; | |
| 612 } | |
| 613 | |
| 614 int WebSocketExperimentTask::DoWebSocketCloseComplete(int result) { | |
| 615 websocket_ = NULL; | |
| 616 return result; | |
| 617 } | |
| 618 | |
| 619 void WebSocketExperimentTask::SetTimeout(int64 deadline_ms) { | |
| 620 bool r = BrowserThread::PostDelayedTask( | |
| 621 BrowserThread::IO, | |
| 622 FROM_HERE, | |
| 623 method_factory_.NewRunnableMethod(&WebSocketExperimentTask::OnTimedOut), | |
| 624 deadline_ms); | |
| 625 DCHECK(r) << "No IO thread running?"; | |
| 626 } | |
| 627 | |
| 628 void WebSocketExperimentTask::RevokeTimeoutTimer() { | |
| 629 method_factory_.RevokeAll(); | |
| 630 } | |
| 631 | |
| 632 void WebSocketExperimentTask::Finish(int result) { | |
| 633 url_fetcher_.reset(); | |
| 634 scoped_refptr<net::WebSocket> websocket = websocket_; | |
| 635 websocket_ = NULL; | |
| 636 if (websocket) | |
| 637 websocket->DetachDelegate(); | |
| 638 DVLOG(1) << "Finish WebSocket experiment for " << config_.url | |
| 639 << " " << GetProtocolVersionName(config_.protocol_version) | |
| 640 << " next_state=" << next_state_ | |
| 641 << " result=" << net::ErrorToString(result); | |
| 642 callback_->Run(result); // will release this. | |
| 643 } | |
| 644 | |
| 645 } // namespace chrome_browser_net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 7567001:
WebSocket: Remove obsolete experiments related files (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src