Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Oracle/ThreadedOracle.cpp @ 1870:3889ae96d2e9
added copyright UCLouvain
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Jan 2022 11:04:09 +0100 |
| parents | 9ac2a65d4172 |
| children | 7053b8a0aaec |
| rev | line source |
|---|---|
| 748 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2021 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 748 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
| 748 | 10 * as published by the Free Software Foundation, either version 3 of |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
|
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 748 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "ThreadedOracle.h" | |
| 25 | |
| 26 #include "SleepOracleCommand.h" | |
| 27 | |
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28 #include <Logging.h> |
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29 #include <OrthancException.h> |
| 748 | 30 |
| 31 namespace OrthancStone | |
| 32 { | |
| 33 class ThreadedOracle::Item : public Orthanc::IDynamicObject | |
| 34 { | |
| 35 private: | |
| 1075 | 36 boost::weak_ptr<IObserver> receiver_; |
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37 std::unique_ptr<IOracleCommand> command_; |
| 748 | 38 |
| 39 public: | |
| 1075 | 40 Item(boost::weak_ptr<IObserver> receiver, |
| 748 | 41 IOracleCommand* command) : |
| 42 receiver_(receiver), | |
| 43 command_(command) | |
| 44 { | |
| 45 if (command == NULL) | |
| 46 { | |
| 47 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 48 } | |
| 49 } | |
| 50 | |
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51 boost::weak_ptr<IObserver> GetReceiver() |
| 748 | 52 { |
| 53 return receiver_; | |
| 54 } | |
| 55 | |
| 56 IOracleCommand& GetCommand() | |
| 57 { | |
| 58 assert(command_.get() != NULL); | |
| 59 return *command_; | |
| 60 } | |
| 61 }; | |
| 62 | |
| 63 | |
| 64 class ThreadedOracle::SleepingCommands : public boost::noncopyable | |
| 65 { | |
| 66 private: | |
| 67 class Item | |
| 68 { | |
| 69 private: | |
| 1075 | 70 boost::weak_ptr<IObserver> receiver_; |
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71 std::unique_ptr<SleepOracleCommand> command_; |
| 748 | 72 boost::posix_time::ptime expiration_; |
| 73 | |
| 74 public: | |
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75 Item(boost::weak_ptr<IObserver> receiver, |
| 748 | 76 SleepOracleCommand* command) : |
| 77 receiver_(receiver), | |
| 78 command_(command) | |
| 79 { | |
| 80 if (command == NULL) | |
| 81 { | |
| 82 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 83 } | |
| 84 | |
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85 expiration_ = (boost::posix_time::microsec_clock::local_time() + |
| 748 | 86 boost::posix_time::milliseconds(command_->GetDelay())); |
| 87 } | |
| 88 | |
| 89 const boost::posix_time::ptime& GetExpirationTime() const | |
| 90 { | |
| 91 return expiration_; | |
| 92 } | |
| 93 | |
| 94 void Awake(IMessageEmitter& emitter) | |
| 95 { | |
| 96 assert(command_.get() != NULL); | |
| 97 | |
| 98 SleepOracleCommand::TimeoutMessage message(*command_); | |
| 99 emitter.EmitMessage(receiver_, message); | |
| 100 } | |
| 101 }; | |
| 102 | |
| 103 typedef std::list<Item*> Content; | |
| 104 | |
| 105 boost::mutex mutex_; | |
| 106 Content content_; | |
| 107 | |
| 108 public: | |
| 109 ~SleepingCommands() | |
| 110 { | |
| 111 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
| 112 { | |
| 113 if (*it != NULL) | |
| 114 { | |
| 115 delete *it; | |
| 116 } | |
| 117 } | |
| 118 } | |
| 119 | |
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120 void Add(boost::weak_ptr<IObserver> receiver, |
| 748 | 121 SleepOracleCommand* command) // Takes ownership |
| 122 { | |
| 123 boost::mutex::scoped_lock lock(mutex_); | |
| 124 | |
| 125 content_.push_back(new Item(receiver, command)); | |
| 126 } | |
| 127 | |
| 128 void AwakeExpired(IMessageEmitter& emitter) | |
| 129 { | |
| 130 boost::mutex::scoped_lock lock(mutex_); | |
| 131 | |
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132 const boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); |
| 748 | 133 |
| 134 Content stillSleeping; | |
| 135 | |
| 136 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
| 137 { | |
| 138 if (*it != NULL && | |
| 139 (*it)->GetExpirationTime() <= now) | |
| 140 { | |
| 141 (*it)->Awake(emitter); | |
| 142 delete *it; | |
| 143 *it = NULL; | |
| 144 } | |
| 145 else | |
| 146 { | |
| 147 stillSleeping.push_back(*it); | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 // Compact the still-sleeping commands | |
| 152 content_ = stillSleeping; | |
| 153 } | |
| 154 }; | |
| 155 | |
| 156 | |
| 157 void ThreadedOracle::Step() | |
| 158 { | |
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159 std::unique_ptr<Orthanc::IDynamicObject> object(queue_.Dequeue(100)); |
| 748 | 160 |
| 161 if (object.get() != NULL) | |
| 162 { | |
| 163 Item& item = dynamic_cast<Item&>(*object); | |
| 164 | |
| 1077 | 165 if (item.GetCommand().GetType() == IOracleCommand::Type_Sleep) |
| 748 | 166 { |
| 1077 | 167 SleepOracleCommand& command = dynamic_cast<SleepOracleCommand&>(item.GetCommand()); |
| 168 | |
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169 std::unique_ptr<SleepOracleCommand> copy(new SleepOracleCommand(command.GetDelay())); |
| 1077 | 170 |
| 171 if (command.HasPayload()) | |
| 748 | 172 { |
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173 copy->AcquirePayload(command.ReleasePayload()); |
| 748 | 174 } |
| 1077 | 175 |
| 176 sleepingCommands_->Add(item.GetReceiver(), copy.release()); | |
| 748 | 177 } |
| 1077 | 178 else |
| 748 | 179 { |
| 1104 | 180 GenericOracleRunner runner; |
| 979 | 181 |
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182 { |
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183 boost::mutex::scoped_lock lock(mutex_); |
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184 runner.SetOrthanc(orthanc_); |
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185 runner.SetRootDirectory(rootDirectory_); |
| 748 | 186 |
| 1126 | 187 #if ORTHANC_ENABLE_DCMTK == 1 |
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188 if (dicomCache_) |
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189 { |
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190 runner.SetDicomCache(dicomCache_); |
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191 } |
| 1126 | 192 #endif |
| 748 | 193 } |
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194 |
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195 runner.Run(item.GetReceiver(), emitter_, item.GetCommand()); |
| 748 | 196 } |
| 197 } | |
| 198 } | |
| 199 | |
| 200 | |
| 201 void ThreadedOracle::Worker(ThreadedOracle* that) | |
| 202 { | |
| 203 assert(that != NULL); | |
| 204 | |
| 205 for (;;) | |
| 206 { | |
| 207 { | |
| 208 boost::mutex::scoped_lock lock(that->mutex_); | |
| 209 if (that->state_ != State_Running) | |
| 210 { | |
| 211 return; | |
| 212 } | |
| 213 } | |
| 214 | |
| 215 that->Step(); | |
| 216 } | |
| 217 } | |
| 218 | |
| 219 | |
| 220 void ThreadedOracle::SleepingWorker(ThreadedOracle* that) | |
| 221 { | |
| 222 assert(that != NULL); | |
| 223 | |
| 224 for (;;) | |
| 225 { | |
| 226 { | |
| 227 boost::mutex::scoped_lock lock(that->mutex_); | |
| 228 if (that->state_ != State_Running) | |
| 229 { | |
| 230 return; | |
| 231 } | |
| 232 } | |
| 233 | |
| 234 that->sleepingCommands_->AwakeExpired(that->emitter_); | |
| 235 | |
| 236 boost::this_thread::sleep(boost::posix_time::milliseconds(that->sleepingTimeResolution_)); | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 | |
| 241 void ThreadedOracle::StopInternal() | |
| 242 { | |
| 243 { | |
| 244 boost::mutex::scoped_lock lock(mutex_); | |
| 245 | |
| 246 if (state_ == State_Setup || | |
| 247 state_ == State_Stopped) | |
| 248 { | |
| 249 return; | |
| 250 } | |
| 251 else | |
| 252 { | |
| 253 state_ = State_Stopped; | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 if (sleepingWorker_.joinable()) | |
| 258 { | |
| 259 sleepingWorker_.join(); | |
| 260 } | |
| 261 | |
| 262 for (size_t i = 0; i < workers_.size(); i++) | |
| 263 { | |
| 264 if (workers_[i] != NULL) | |
| 265 { | |
| 266 if (workers_[i]->joinable()) | |
| 267 { | |
| 268 workers_[i]->join(); | |
| 269 } | |
| 270 | |
| 271 delete workers_[i]; | |
| 272 } | |
| 273 } | |
| 274 } | |
| 275 | |
| 276 | |
| 277 ThreadedOracle::ThreadedOracle(IMessageEmitter& emitter) : | |
| 278 emitter_(emitter), | |
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279 rootDirectory_("."), |
| 748 | 280 state_(State_Setup), |
| 281 workers_(4), | |
| 282 sleepingCommands_(new SleepingCommands), | |
| 283 sleepingTimeResolution_(50) // By default, time resolution of 50ms | |
| 284 { | |
| 285 } | |
| 286 | |
| 287 | |
| 765 | 288 ThreadedOracle::~ThreadedOracle() |
| 289 { | |
| 290 if (state_ == State_Running) | |
| 291 { | |
| 292 LOG(ERROR) << "The threaded oracle is still running, explicit call to " | |
| 293 << "Stop() is mandatory to avoid crashes"; | |
| 294 } | |
| 295 | |
| 296 try | |
| 297 { | |
| 298 StopInternal(); | |
| 299 } | |
| 300 catch (Orthanc::OrthancException& e) | |
| 301 { | |
| 302 LOG(ERROR) << "Exception while stopping the threaded oracle: " << e.What(); | |
| 303 } | |
| 304 catch (...) | |
| 305 { | |
| 306 LOG(ERROR) << "Native exception while stopping the threaded oracle"; | |
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307 } |
| 765 | 308 } |
| 309 | |
| 310 | |
| 748 | 311 void ThreadedOracle::SetOrthancParameters(const Orthanc::WebServiceParameters& orthanc) |
| 312 { | |
| 313 boost::mutex::scoped_lock lock(mutex_); | |
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314 orthanc_ = orthanc; |
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315 } |
| 748 | 316 |
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317 |
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318 void ThreadedOracle::SetRootDirectory(const std::string& rootDirectory) |
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319 { |
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320 boost::mutex::scoped_lock lock(mutex_); |
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321 rootDirectory_ = rootDirectory; |
| 748 | 322 } |
| 323 | |
| 324 | |
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325 void ThreadedOracle::SetThreadsCount(unsigned int count) |
| 748 | 326 { |
| 327 boost::mutex::scoped_lock lock(mutex_); | |
| 328 | |
| 1571 | 329 if (count == 0) |
| 748 | 330 { |
| 331 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 332 } | |
| 333 else if (state_ != State_Setup) | |
| 334 { | |
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335 LOG(ERROR) << "ThreadedOracle::SetThreadsCount(): (state_ != State_Setup)"; |
| 748 | 336 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 337 } | |
| 338 else | |
| 339 { | |
| 340 workers_.resize(count); | |
| 341 } | |
| 342 } | |
| 343 | |
| 344 | |
| 345 void ThreadedOracle::SetSleepingTimeResolution(unsigned int milliseconds) | |
| 346 { | |
| 347 boost::mutex::scoped_lock lock(mutex_); | |
| 348 | |
| 1571 | 349 if (milliseconds == 0) |
| 748 | 350 { |
| 351 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 352 } | |
| 353 else if (state_ != State_Setup) | |
| 354 { | |
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355 LOG(ERROR) << "ThreadedOracle::SetSleepingTimeResolution(): (state_ != State_Setup)"; |
| 748 | 356 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 357 } | |
| 358 else | |
| 359 { | |
| 360 sleepingTimeResolution_ = milliseconds; | |
| 361 } | |
| 362 } | |
| 363 | |
| 364 | |
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365 void ThreadedOracle::SetDicomCacheSize(size_t size) |
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366 { |
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367 #if ORTHANC_ENABLE_DCMTK == 1 |
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368 boost::mutex::scoped_lock lock(mutex_); |
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369 |
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370 if (state_ != State_Setup) |
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371 { |
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372 LOG(ERROR) << "ThreadedOracle::SetDicomCacheSize(): (state_ != State_Setup)"; |
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373 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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374 } |
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375 else |
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376 { |
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377 if (size == 0) |
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378 { |
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379 dicomCache_.reset(); |
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380 } |
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381 else |
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382 { |
| 1150 | 383 dicomCache_.reset(new ParsedDicomCache(size)); |
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384 } |
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385 } |
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386 #endif |
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387 } |
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388 |
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389 |
| 748 | 390 void ThreadedOracle::Start() |
| 391 { | |
| 392 boost::mutex::scoped_lock lock(mutex_); | |
| 393 | |
| 394 if (state_ != State_Setup) | |
| 395 { | |
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396 LOG(ERROR) << "ThreadedOracle::Start(): (state_ != State_Setup)"; |
| 748 | 397 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 398 } | |
| 399 else | |
| 400 { | |
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401 LOG(INFO) << "Starting oracle with " << workers_.size() << " worker threads"; |
| 748 | 402 state_ = State_Running; |
| 403 | |
| 404 for (unsigned int i = 0; i < workers_.size(); i++) | |
| 405 { | |
| 406 workers_[i] = new boost::thread(Worker, this); | |
| 407 } | |
| 408 | |
| 409 sleepingWorker_ = boost::thread(SleepingWorker, this); | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 | |
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414 bool ThreadedOracle::Schedule(boost::shared_ptr<IObserver> receiver, |
| 748 | 415 IOracleCommand* command) |
| 416 { | |
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417 std::unique_ptr<Item> item(new Item(receiver, command)); |
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418 |
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419 { |
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420 boost::mutex::scoped_lock lock(mutex_); |
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421 |
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422 if (state_ == State_Running) |
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423 { |
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424 //LOG(INFO) << "New oracle command queued"; |
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425 queue_.Enqueue(item.release()); |
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426 return true; |
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427 } |
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428 else |
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429 { |
| 1140 | 430 LOG(TRACE) << "Command not enqueued, as the oracle has stopped"; |
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431 return false; |
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432 } |
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433 } |
| 748 | 434 } |
| 435 } |