Mercurial > hg > orthanc-stone
annotate Framework/Oracle/ThreadedOracle.cpp @ 1097:4383382db01d broker
deprecating LockingEmitter
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 24 Oct 2019 22:31:18 +0200 |
parents | d7a18a3cd6f9 |
children | 17660df24c36 |
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 } | |
1097
4383382db01d
deprecating LockingEmitter
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1077
diff
changeset
|
258 |
4383382db01d
deprecating LockingEmitter
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1077
diff
changeset
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259 queue_.Clear(); |
748 | 260 } |
261 | |
262 | |
263 ThreadedOracle::ThreadedOracle(IMessageEmitter& emitter) : | |
264 emitter_(emitter), | |
265 state_(State_Setup), | |
266 workers_(4), | |
267 sleepingCommands_(new SleepingCommands), | |
268 sleepingTimeResolution_(50) // By default, time resolution of 50ms | |
269 { | |
270 } | |
271 | |
272 | |
765 | 273 ThreadedOracle::~ThreadedOracle() |
274 { | |
275 if (state_ == State_Running) | |
276 { | |
277 LOG(ERROR) << "The threaded oracle is still running, explicit call to " | |
278 << "Stop() is mandatory to avoid crashes"; | |
279 } | |
280 | |
281 try | |
282 { | |
283 StopInternal(); | |
284 } | |
285 catch (Orthanc::OrthancException& e) | |
286 { | |
287 LOG(ERROR) << "Exception while stopping the threaded oracle: " << e.What(); | |
288 } | |
289 catch (...) | |
290 { | |
291 LOG(ERROR) << "Native exception while stopping the threaded oracle"; | |
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4383382db01d
deprecating LockingEmitter
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1077
diff
changeset
|
292 } |
765 | 293 } |
294 | |
295 | |
748 | 296 void ThreadedOracle::SetOrthancParameters(const Orthanc::WebServiceParameters& orthanc) |
297 { | |
298 boost::mutex::scoped_lock lock(mutex_); | |
299 | |
300 if (state_ != State_Setup) | |
301 { | |
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diff
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302 LOG(ERROR) << "ThreadedOracle::SetOrthancParameters(): (state_ != State_Setup)"; |
748 | 303 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
304 } | |
305 else | |
306 { | |
307 orthanc_ = orthanc; | |
308 } | |
309 } | |
310 | |
311 | |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
748
diff
changeset
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312 void ThreadedOracle::SetThreadsCount(unsigned int count) |
748 | 313 { |
314 boost::mutex::scoped_lock lock(mutex_); | |
315 | |
316 if (count <= 0) | |
317 { | |
318 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
319 } | |
320 else if (state_ != State_Setup) | |
321 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
|
322 LOG(ERROR) << "ThreadedOracle::SetThreadsCount(): (state_ != State_Setup)"; |
748 | 323 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
324 } | |
325 else | |
326 { | |
327 workers_.resize(count); | |
328 } | |
329 } | |
330 | |
331 | |
332 void ThreadedOracle::SetSleepingTimeResolution(unsigned int milliseconds) | |
333 { | |
334 boost::mutex::scoped_lock lock(mutex_); | |
335 | |
336 if (milliseconds <= 0) | |
337 { | |
338 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
339 } | |
340 else if (state_ != State_Setup) | |
341 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
|
342 LOG(ERROR) << "ThreadedOracle::SetSleepingTimeResolution(): (state_ != State_Setup)"; |
748 | 343 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
344 } | |
345 else | |
346 { | |
347 sleepingTimeResolution_ = milliseconds; | |
348 } | |
349 } | |
350 | |
351 | |
352 void ThreadedOracle::Start() | |
353 { | |
354 boost::mutex::scoped_lock lock(mutex_); | |
355 | |
356 if (state_ != State_Setup) | |
357 { | |
956
a7351ad54960
Made IsContextLost automatically set the flag by checking with the emscripten
Benjamin Golinvaux <bgo@osimis.io>
parents:
819
diff
changeset
|
358 LOG(ERROR) << "ThreadedOracle::Start(): (state_ != State_Setup)"; |
748 | 359 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
360 } | |
361 else | |
362 { | |
363 state_ = State_Running; | |
364 | |
365 for (unsigned int i = 0; i < workers_.size(); i++) | |
366 { | |
367 workers_[i] = new boost::thread(Worker, this); | |
368 } | |
369 | |
370 sleepingWorker_ = boost::thread(SleepingWorker, this); | |
371 } | |
372 } | |
373 | |
374 | |
1075 | 375 void ThreadedOracle::Schedule(boost::shared_ptr<IObserver>& receiver, |
748 | 376 IOracleCommand* command) |
377 { | |
378 queue_.Enqueue(new Item(receiver, command)); | |
379 } | |
380 } |