Mercurial > hg > orthanc-stone
annotate Framework/Oracle/ThreadedOracle.cpp @ 1083:f72d1ab42932 broker
integration mainline->broker
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 22 Oct 2019 13:14:05 +0200 |
parents | d7a18a3cd6f9 |
children | 4383382db01d |
rev | line source |
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748 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
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_; |
748 | 35 std::auto_ptr<IOracleCommand> command_; |
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 | |
1075 | 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_; |
748 | 69 std::auto_ptr<SleepOracleCommand> command_; |
70 boost::posix_time::ptime expiration_; | |
71 | |
72 public: | |
1075 | 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 | |
1075 | 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 { | |
157 std::auto_ptr<Orthanc::IDynamicObject> object(queue_.Dequeue(100)); | |
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 | |
167 std::auto_ptr<SleepOracleCommand> copy(new SleepOracleCommand(command.GetDelay())); | |
168 | |
169 if (command.HasPayload()) | |
748 | 170 { |
1077 | 171 copy->SetPayload(command.ReleasePayload()); |
748 | 172 } |
1077 | 173 |
174 sleepingCommands_->Add(item.GetReceiver(), copy.release()); | |
748 | 175 } |
1077 | 176 else |
748 | 177 { |
1077 | 178 GenericOracleRunner runner(emitter_, orthanc_); |
179 runner.Run(item.GetReceiver(), item.GetCommand()); | |
748 | 180 } |
181 } | |
182 } | |
183 | |
184 | |
185 void ThreadedOracle::Worker(ThreadedOracle* that) | |
186 { | |
187 assert(that != NULL); | |
188 | |
189 for (;;) | |
190 { | |
191 { | |
192 boost::mutex::scoped_lock lock(that->mutex_); | |
193 if (that->state_ != State_Running) | |
194 { | |
195 return; | |
196 } | |
197 } | |
198 | |
199 that->Step(); | |
200 } | |
201 } | |
202 | |
203 | |
204 void ThreadedOracle::SleepingWorker(ThreadedOracle* that) | |
205 { | |
206 assert(that != NULL); | |
207 | |
208 for (;;) | |
209 { | |
210 { | |
211 boost::mutex::scoped_lock lock(that->mutex_); | |
212 if (that->state_ != State_Running) | |
213 { | |
214 return; | |
215 } | |
216 } | |
217 | |
218 that->sleepingCommands_->AwakeExpired(that->emitter_); | |
219 | |
220 boost::this_thread::sleep(boost::posix_time::milliseconds(that->sleepingTimeResolution_)); | |
221 } | |
222 } | |
223 | |
224 | |
225 void ThreadedOracle::StopInternal() | |
226 { | |
227 { | |
228 boost::mutex::scoped_lock lock(mutex_); | |
229 | |
230 if (state_ == State_Setup || | |
231 state_ == State_Stopped) | |
232 { | |
233 return; | |
234 } | |
235 else | |
236 { | |
237 state_ = State_Stopped; | |
238 } | |
239 } | |
240 | |
241 if (sleepingWorker_.joinable()) | |
242 { | |
243 sleepingWorker_.join(); | |
244 } | |
245 | |
246 for (size_t i = 0; i < workers_.size(); i++) | |
247 { | |
248 if (workers_[i] != NULL) | |
249 { | |
250 if (workers_[i]->joinable()) | |
251 { | |
252 workers_[i]->join(); | |
253 } | |
254 | |
255 delete workers_[i]; | |
256 } | |
257 } | |
258 } | |
259 | |
260 | |
261 ThreadedOracle::ThreadedOracle(IMessageEmitter& emitter) : | |
262 emitter_(emitter), | |
263 state_(State_Setup), | |
264 workers_(4), | |
265 sleepingCommands_(new SleepingCommands), | |
266 sleepingTimeResolution_(50) // By default, time resolution of 50ms | |
267 { | |
268 } | |
269 | |
270 | |
765 | 271 ThreadedOracle::~ThreadedOracle() |
272 { | |
273 if (state_ == State_Running) | |
274 { | |
275 LOG(ERROR) << "The threaded oracle is still running, explicit call to " | |
276 << "Stop() is mandatory to avoid crashes"; | |
277 } | |
278 | |
279 try | |
280 { | |
281 StopInternal(); | |
282 } | |
283 catch (Orthanc::OrthancException& e) | |
284 { | |
285 LOG(ERROR) << "Exception while stopping the threaded oracle: " << e.What(); | |
286 } | |
287 catch (...) | |
288 { | |
289 LOG(ERROR) << "Native exception while stopping the threaded oracle"; | |
290 } | |
291 } | |
292 | |
293 | |
748 | 294 void ThreadedOracle::SetOrthancParameters(const Orthanc::WebServiceParameters& orthanc) |
295 { | |
296 boost::mutex::scoped_lock lock(mutex_); | |
297 | |
298 if (state_ != State_Setup) | |
299 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
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300 LOG(ERROR) << "ThreadedOracle::SetOrthancParameters(): (state_ != State_Setup)"; |
748 | 301 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
302 } | |
303 else | |
304 { | |
305 orthanc_ = orthanc; | |
306 } | |
307 } | |
308 | |
309 | |
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parents:
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diff
changeset
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310 void ThreadedOracle::SetThreadsCount(unsigned int count) |
748 | 311 { |
312 boost::mutex::scoped_lock lock(mutex_); | |
313 | |
314 if (count <= 0) | |
315 { | |
316 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
317 } | |
318 else if (state_ != State_Setup) | |
319 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
|
320 LOG(ERROR) << "ThreadedOracle::SetThreadsCount(): (state_ != State_Setup)"; |
748 | 321 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
322 } | |
323 else | |
324 { | |
325 workers_.resize(count); | |
326 } | |
327 } | |
328 | |
329 | |
330 void ThreadedOracle::SetSleepingTimeResolution(unsigned int milliseconds) | |
331 { | |
332 boost::mutex::scoped_lock lock(mutex_); | |
333 | |
334 if (milliseconds <= 0) | |
335 { | |
336 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
337 } | |
338 else if (state_ != State_Setup) | |
339 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
|
340 LOG(ERROR) << "ThreadedOracle::SetSleepingTimeResolution(): (state_ != State_Setup)"; |
748 | 341 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
342 } | |
343 else | |
344 { | |
345 sleepingTimeResolution_ = milliseconds; | |
346 } | |
347 } | |
348 | |
349 | |
350 void ThreadedOracle::Start() | |
351 { | |
352 boost::mutex::scoped_lock lock(mutex_); | |
353 | |
354 if (state_ != State_Setup) | |
355 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
|
356 LOG(ERROR) << "ThreadedOracle::Start(): (state_ != State_Setup)"; |
748 | 357 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
358 } | |
359 else | |
360 { | |
361 state_ = State_Running; | |
362 | |
363 for (unsigned int i = 0; i < workers_.size(); i++) | |
364 { | |
365 workers_[i] = new boost::thread(Worker, this); | |
366 } | |
367 | |
368 sleepingWorker_ = boost::thread(SleepingWorker, this); | |
369 } | |
370 } | |
371 | |
372 | |
1075 | 373 void ThreadedOracle::Schedule(boost::shared_ptr<IObserver>& receiver, |
748 | 374 IOracleCommand* command) |
375 { | |
376 queue_.Enqueue(new Item(receiver, command)); | |
377 } | |
378 } |