Mercurial > hg > orthanc-stone
annotate Framework/Oracle/ThreadedOracle.cpp @ 1326:55166e57a77c broker
doc
| author | Benjamin Golinvaux <bgo@osimis.io> |
|---|---|
| date | Tue, 24 Mar 2020 21:32:35 +0100 |
| parents | 257f2c9a02ac |
| children | 297e57d3508c |
| 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) 2017-2020 Osimis S.A., Belgium |
| 748 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "ThreadedOracle.h" | |
| 23 | |
| 24 #include "SleepOracleCommand.h" | |
| 25 | |
| 1077 | 26 #include <Core/Logging.h> |
| 748 | 27 #include <Core/OrthancException.h> |
| 28 | |
| 29 namespace OrthancStone | |
| 30 { | |
| 31 class ThreadedOracle::Item : public Orthanc::IDynamicObject | |
| 32 { | |
| 33 private: | |
| 1075 | 34 boost::weak_ptr<IObserver> receiver_; |
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35 std::unique_ptr<IOracleCommand> command_; |
| 748 | 36 |
| 37 public: | |
| 1075 | 38 Item(boost::weak_ptr<IObserver> receiver, |
| 748 | 39 IOracleCommand* command) : |
| 40 receiver_(receiver), | |
| 41 command_(command) | |
| 42 { | |
| 43 if (command == NULL) | |
| 44 { | |
| 45 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 46 } | |
| 47 } | |
| 48 | |
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49 boost::weak_ptr<IObserver> GetReceiver() |
| 748 | 50 { |
| 51 return receiver_; | |
| 52 } | |
| 53 | |
| 54 IOracleCommand& GetCommand() | |
| 55 { | |
| 56 assert(command_.get() != NULL); | |
| 57 return *command_; | |
| 58 } | |
| 59 }; | |
| 60 | |
| 61 | |
| 62 class ThreadedOracle::SleepingCommands : public boost::noncopyable | |
| 63 { | |
| 64 private: | |
| 65 class Item | |
| 66 { | |
| 67 private: | |
| 1075 | 68 boost::weak_ptr<IObserver> receiver_; |
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69 std::unique_ptr<SleepOracleCommand> command_; |
| 748 | 70 boost::posix_time::ptime expiration_; |
| 71 | |
| 72 public: | |
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73 Item(boost::weak_ptr<IObserver> receiver, |
| 748 | 74 SleepOracleCommand* command) : |
| 75 receiver_(receiver), | |
| 76 command_(command) | |
| 77 { | |
| 78 if (command == NULL) | |
| 79 { | |
| 80 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 81 } | |
| 82 | |
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83 expiration_ = (boost::posix_time::microsec_clock::local_time() + |
| 748 | 84 boost::posix_time::milliseconds(command_->GetDelay())); |
| 85 } | |
| 86 | |
| 87 const boost::posix_time::ptime& GetExpirationTime() const | |
| 88 { | |
| 89 return expiration_; | |
| 90 } | |
| 91 | |
| 92 void Awake(IMessageEmitter& emitter) | |
| 93 { | |
| 94 assert(command_.get() != NULL); | |
| 95 | |
| 96 SleepOracleCommand::TimeoutMessage message(*command_); | |
| 97 emitter.EmitMessage(receiver_, message); | |
| 98 } | |
| 99 }; | |
| 100 | |
| 101 typedef std::list<Item*> Content; | |
| 102 | |
| 103 boost::mutex mutex_; | |
| 104 Content content_; | |
| 105 | |
| 106 public: | |
| 107 ~SleepingCommands() | |
| 108 { | |
| 109 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
| 110 { | |
| 111 if (*it != NULL) | |
| 112 { | |
| 113 delete *it; | |
| 114 } | |
| 115 } | |
| 116 } | |
| 117 | |
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118 void Add(boost::weak_ptr<IObserver> receiver, |
| 748 | 119 SleepOracleCommand* command) // Takes ownership |
| 120 { | |
| 121 boost::mutex::scoped_lock lock(mutex_); | |
| 122 | |
| 123 content_.push_back(new Item(receiver, command)); | |
| 124 } | |
| 125 | |
| 126 void AwakeExpired(IMessageEmitter& emitter) | |
| 127 { | |
| 128 boost::mutex::scoped_lock lock(mutex_); | |
| 129 | |
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130 const boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time(); |
| 748 | 131 |
| 132 Content stillSleeping; | |
| 133 | |
| 134 for (Content::iterator it = content_.begin(); it != content_.end(); ++it) | |
| 135 { | |
| 136 if (*it != NULL && | |
| 137 (*it)->GetExpirationTime() <= now) | |
| 138 { | |
| 139 (*it)->Awake(emitter); | |
| 140 delete *it; | |
| 141 *it = NULL; | |
| 142 } | |
| 143 else | |
| 144 { | |
| 145 stillSleeping.push_back(*it); | |
| 146 } | |
| 147 } | |
| 148 | |
| 149 // Compact the still-sleeping commands | |
| 150 content_ = stillSleeping; | |
| 151 } | |
| 152 }; | |
| 153 | |
| 154 | |
| 155 void ThreadedOracle::Step() | |
| 156 { | |
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157 std::unique_ptr<Orthanc::IDynamicObject> object(queue_.Dequeue(100)); |
| 748 | 158 |
| 159 if (object.get() != NULL) | |
| 160 { | |
| 161 Item& item = dynamic_cast<Item&>(*object); | |
| 162 | |
| 1077 | 163 if (item.GetCommand().GetType() == IOracleCommand::Type_Sleep) |
| 748 | 164 { |
| 1077 | 165 SleepOracleCommand& command = dynamic_cast<SleepOracleCommand&>(item.GetCommand()); |
| 166 | |
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167 std::unique_ptr<SleepOracleCommand> copy(new SleepOracleCommand(command.GetDelay())); |
| 1077 | 168 |
| 169 if (command.HasPayload()) | |
| 748 | 170 { |
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171 copy->AcquirePayload(command.ReleasePayload()); |
| 748 | 172 } |
| 1077 | 173 |
| 174 sleepingCommands_->Add(item.GetReceiver(), copy.release()); | |
| 748 | 175 } |
| 1077 | 176 else |
| 748 | 177 { |
| 1104 | 178 GenericOracleRunner runner; |
| 979 | 179 |
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180 { |
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181 boost::mutex::scoped_lock lock(mutex_); |
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182 runner.SetOrthanc(orthanc_); |
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183 runner.SetRootDirectory(rootDirectory_); |
| 748 | 184 |
| 1126 | 185 #if ORTHANC_ENABLE_DCMTK == 1 |
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186 if (dicomCache_) |
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187 { |
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188 runner.SetDicomCache(dicomCache_); |
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189 } |
| 1126 | 190 #endif |
| 748 | 191 } |
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192 |
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193 runner.Run(item.GetReceiver(), emitter_, item.GetCommand()); |
| 748 | 194 } |
| 195 } | |
| 196 } | |
| 197 | |
| 198 | |
| 199 void ThreadedOracle::Worker(ThreadedOracle* that) | |
| 200 { | |
| 201 assert(that != NULL); | |
| 202 | |
| 203 for (;;) | |
| 204 { | |
| 205 { | |
| 206 boost::mutex::scoped_lock lock(that->mutex_); | |
| 207 if (that->state_ != State_Running) | |
| 208 { | |
| 209 return; | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 that->Step(); | |
| 214 } | |
| 215 } | |
| 216 | |
| 217 | |
| 218 void ThreadedOracle::SleepingWorker(ThreadedOracle* that) | |
| 219 { | |
| 220 assert(that != NULL); | |
| 221 | |
| 222 for (;;) | |
| 223 { | |
| 224 { | |
| 225 boost::mutex::scoped_lock lock(that->mutex_); | |
| 226 if (that->state_ != State_Running) | |
| 227 { | |
| 228 return; | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 that->sleepingCommands_->AwakeExpired(that->emitter_); | |
| 233 | |
| 234 boost::this_thread::sleep(boost::posix_time::milliseconds(that->sleepingTimeResolution_)); | |
| 235 } | |
| 236 } | |
| 237 | |
| 238 | |
| 239 void ThreadedOracle::StopInternal() | |
| 240 { | |
| 241 { | |
| 242 boost::mutex::scoped_lock lock(mutex_); | |
| 243 | |
| 244 if (state_ == State_Setup || | |
| 245 state_ == State_Stopped) | |
| 246 { | |
| 247 return; | |
| 248 } | |
| 249 else | |
| 250 { | |
| 251 state_ = State_Stopped; | |
| 252 } | |
| 253 } | |
| 254 | |
| 255 if (sleepingWorker_.joinable()) | |
| 256 { | |
| 257 sleepingWorker_.join(); | |
| 258 } | |
| 259 | |
| 260 for (size_t i = 0; i < workers_.size(); i++) | |
| 261 { | |
| 262 if (workers_[i] != NULL) | |
| 263 { | |
| 264 if (workers_[i]->joinable()) | |
| 265 { | |
| 266 workers_[i]->join(); | |
| 267 } | |
| 268 | |
| 269 delete workers_[i]; | |
| 270 } | |
| 271 } | |
| 272 } | |
| 273 | |
| 274 | |
| 275 ThreadedOracle::ThreadedOracle(IMessageEmitter& emitter) : | |
| 276 emitter_(emitter), | |
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277 rootDirectory_("."), |
| 748 | 278 state_(State_Setup), |
| 279 workers_(4), | |
| 280 sleepingCommands_(new SleepingCommands), | |
| 281 sleepingTimeResolution_(50) // By default, time resolution of 50ms | |
| 282 { | |
| 283 } | |
| 284 | |
| 285 | |
| 765 | 286 ThreadedOracle::~ThreadedOracle() |
| 287 { | |
| 288 if (state_ == State_Running) | |
| 289 { | |
| 290 LOG(ERROR) << "The threaded oracle is still running, explicit call to " | |
| 291 << "Stop() is mandatory to avoid crashes"; | |
| 292 } | |
| 293 | |
| 294 try | |
| 295 { | |
| 296 StopInternal(); | |
| 297 } | |
| 298 catch (Orthanc::OrthancException& e) | |
| 299 { | |
| 300 LOG(ERROR) << "Exception while stopping the threaded oracle: " << e.What(); | |
| 301 } | |
| 302 catch (...) | |
| 303 { | |
| 304 LOG(ERROR) << "Native exception while stopping the threaded oracle"; | |
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305 } |
| 765 | 306 } |
| 307 | |
| 308 | |
| 748 | 309 void ThreadedOracle::SetOrthancParameters(const Orthanc::WebServiceParameters& orthanc) |
| 310 { | |
| 311 boost::mutex::scoped_lock lock(mutex_); | |
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312 orthanc_ = orthanc; |
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313 } |
| 748 | 314 |
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315 |
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316 void ThreadedOracle::SetRootDirectory(const std::string& rootDirectory) |
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317 { |
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318 boost::mutex::scoped_lock lock(mutex_); |
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319 rootDirectory_ = rootDirectory; |
| 748 | 320 } |
| 321 | |
| 322 | |
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323 void ThreadedOracle::SetThreadsCount(unsigned int count) |
| 748 | 324 { |
| 325 boost::mutex::scoped_lock lock(mutex_); | |
| 326 | |
| 327 if (count <= 0) | |
| 328 { | |
| 329 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 330 } | |
| 331 else if (state_ != State_Setup) | |
| 332 { | |
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333 LOG(ERROR) << "ThreadedOracle::SetThreadsCount(): (state_ != State_Setup)"; |
| 748 | 334 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 335 } | |
| 336 else | |
| 337 { | |
| 338 workers_.resize(count); | |
| 339 } | |
| 340 } | |
| 341 | |
| 342 | |
| 343 void ThreadedOracle::SetSleepingTimeResolution(unsigned int milliseconds) | |
| 344 { | |
| 345 boost::mutex::scoped_lock lock(mutex_); | |
| 346 | |
| 347 if (milliseconds <= 0) | |
| 348 { | |
| 349 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 350 } | |
| 351 else if (state_ != State_Setup) | |
| 352 { | |
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353 LOG(ERROR) << "ThreadedOracle::SetSleepingTimeResolution(): (state_ != State_Setup)"; |
| 748 | 354 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 355 } | |
| 356 else | |
| 357 { | |
| 358 sleepingTimeResolution_ = milliseconds; | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 | |
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363 void ThreadedOracle::SetDicomCacheSize(size_t size) |
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364 { |
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365 #if ORTHANC_ENABLE_DCMTK == 1 |
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366 boost::mutex::scoped_lock lock(mutex_); |
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367 |
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368 if (state_ != State_Setup) |
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369 { |
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370 LOG(ERROR) << "ThreadedOracle::SetDicomCacheSize(): (state_ != State_Setup)"; |
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371 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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372 } |
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373 else |
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374 { |
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375 if (size == 0) |
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376 { |
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377 dicomCache_.reset(); |
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378 } |
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379 else |
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380 { |
| 1150 | 381 dicomCache_.reset(new ParsedDicomCache(size)); |
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382 } |
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383 } |
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384 #endif |
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385 } |
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386 |
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387 |
| 748 | 388 void ThreadedOracle::Start() |
| 389 { | |
| 390 boost::mutex::scoped_lock lock(mutex_); | |
| 391 | |
| 392 if (state_ != State_Setup) | |
| 393 { | |
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394 LOG(ERROR) << "ThreadedOracle::Start(): (state_ != State_Setup)"; |
| 748 | 395 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
| 396 } | |
| 397 else | |
| 398 { | |
| 1140 | 399 LOG(WARNING) << "Starting oracle with " << workers_.size() << " worker threads"; |
| 748 | 400 state_ = State_Running; |
| 401 | |
| 402 for (unsigned int i = 0; i < workers_.size(); i++) | |
| 403 { | |
| 404 workers_[i] = new boost::thread(Worker, this); | |
| 405 } | |
| 406 | |
| 407 sleepingWorker_ = boost::thread(SleepingWorker, this); | |
| 408 } | |
| 409 } | |
| 410 | |
| 411 | |
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412 bool ThreadedOracle::Schedule(boost::shared_ptr<IObserver> receiver, |
| 748 | 413 IOracleCommand* command) |
| 414 { | |
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415 std::unique_ptr<Item> item(new Item(receiver, command)); |
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416 |
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417 { |
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418 boost::mutex::scoped_lock lock(mutex_); |
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419 |
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420 if (state_ == State_Running) |
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421 { |
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422 //LOG(INFO) << "New oracle command queued"; |
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423 queue_.Enqueue(item.release()); |
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424 return true; |
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425 } |
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426 else |
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427 { |
| 1140 | 428 LOG(TRACE) << "Command not enqueued, as the oracle has stopped"; |
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429 return false; |
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430 } |
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431 } |
| 748 | 432 } |
| 433 } |