151
|
1 /**
|
|
2 * Orthanc - A Lightweight, RESTful DICOM Store
|
|
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
|
|
4 * Department, University Hospital of Liege, Belgium
|
|
5 * Copyright (C) 2017-2018 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 "BagOfTasksProcessor.h"
|
|
23
|
|
24 #include <Core/Logging.h>
|
|
25 #include <Core/OrthancException.h>
|
|
26
|
|
27 #include <stdio.h>
|
|
28
|
|
29 namespace Orthanc
|
|
30 {
|
|
31 class BagOfTasksProcessor::Task : public IDynamicObject
|
|
32 {
|
|
33 private:
|
|
34 uint64_t bag_;
|
|
35 std::auto_ptr<ICommand> command_;
|
|
36
|
|
37 public:
|
|
38 Task(uint64_t bag,
|
|
39 ICommand* command) :
|
|
40 bag_(bag),
|
|
41 command_(command)
|
|
42 {
|
|
43 }
|
|
44
|
|
45 bool Execute()
|
|
46 {
|
|
47 try
|
|
48 {
|
|
49 return command_->Execute();
|
|
50 }
|
|
51 catch (OrthancException& e)
|
|
52 {
|
|
53 LOG(ERROR) << "Exception while processing a bag of tasks: " << e.What();
|
|
54 return false;
|
|
55 }
|
|
56 catch (std::runtime_error& e)
|
|
57 {
|
|
58 LOG(ERROR) << "Runtime exception while processing a bag of tasks: " << e.what();
|
|
59 return false;
|
|
60 }
|
|
61 catch (...)
|
|
62 {
|
|
63 LOG(ERROR) << "Native exception while processing a bag of tasks";
|
|
64 return false;
|
|
65 }
|
|
66 }
|
|
67
|
|
68 uint64_t GetBag()
|
|
69 {
|
|
70 return bag_;
|
|
71 }
|
|
72 };
|
|
73
|
|
74
|
|
75 void BagOfTasksProcessor::SignalProgress(Task& task,
|
|
76 Bag& bag)
|
|
77 {
|
|
78 assert(bag.done_ < bag.size_);
|
|
79
|
|
80 bag.done_ += 1;
|
|
81
|
|
82 if (bag.done_ == bag.size_)
|
|
83 {
|
|
84 exitStatus_[task.GetBag()] = (bag.status_ == BagStatus_Running);
|
|
85 bagFinished_.notify_all();
|
|
86 }
|
|
87 }
|
|
88
|
|
89 void BagOfTasksProcessor::Worker(BagOfTasksProcessor* that)
|
|
90 {
|
|
91 while (that->continue_)
|
|
92 {
|
|
93 std::auto_ptr<IDynamicObject> obj(that->queue_.Dequeue(100));
|
|
94 if (obj.get() != NULL)
|
|
95 {
|
|
96 Task& task = *dynamic_cast<Task*>(obj.get());
|
|
97
|
|
98 {
|
|
99 boost::mutex::scoped_lock lock(that->mutex_);
|
|
100
|
|
101 Bags::iterator bag = that->bags_.find(task.GetBag());
|
|
102 assert(bag != that->bags_.end());
|
|
103 assert(bag->second.done_ < bag->second.size_);
|
|
104
|
|
105 if (bag->second.status_ != BagStatus_Running)
|
|
106 {
|
|
107 // Do not execute this task, as its parent bag of tasks
|
|
108 // has failed or is tagged as canceled
|
|
109 that->SignalProgress(task, bag->second);
|
|
110 continue;
|
|
111 }
|
|
112 }
|
|
113
|
|
114 bool success = task.Execute();
|
|
115
|
|
116 {
|
|
117 boost::mutex::scoped_lock lock(that->mutex_);
|
|
118
|
|
119 Bags::iterator bag = that->bags_.find(task.GetBag());
|
|
120 assert(bag != that->bags_.end());
|
|
121
|
|
122 if (!success)
|
|
123 {
|
|
124 bag->second.status_ = BagStatus_Failed;
|
|
125 }
|
|
126
|
|
127 that->SignalProgress(task, bag->second);
|
|
128 }
|
|
129 }
|
|
130 }
|
|
131 }
|
|
132
|
|
133
|
|
134 void BagOfTasksProcessor::Cancel(int64_t bag)
|
|
135 {
|
|
136 boost::mutex::scoped_lock lock(mutex_);
|
|
137
|
|
138 Bags::iterator it = bags_.find(bag);
|
|
139 if (it != bags_.end())
|
|
140 {
|
|
141 it->second.status_ = BagStatus_Canceled;
|
|
142 }
|
|
143 }
|
|
144
|
|
145
|
|
146 bool BagOfTasksProcessor::Join(int64_t bag)
|
|
147 {
|
|
148 boost::mutex::scoped_lock lock(mutex_);
|
|
149
|
|
150 while (continue_)
|
|
151 {
|
|
152 ExitStatus::iterator it = exitStatus_.find(bag);
|
|
153 if (it == exitStatus_.end()) // The bag is still running
|
|
154 {
|
|
155 bagFinished_.wait(lock);
|
|
156 }
|
|
157 else
|
|
158 {
|
|
159 bool status = it->second;
|
|
160 exitStatus_.erase(it);
|
|
161 return status;
|
|
162 }
|
|
163 }
|
|
164
|
|
165 return false; // The processor is stopping
|
|
166 }
|
|
167
|
|
168
|
|
169 float BagOfTasksProcessor::GetProgress(int64_t bag)
|
|
170 {
|
|
171 boost::mutex::scoped_lock lock(mutex_);
|
|
172
|
|
173 Bags::const_iterator it = bags_.find(bag);
|
|
174 if (it == bags_.end())
|
|
175 {
|
|
176 // The bag of tasks has finished
|
|
177 return 1.0f;
|
|
178 }
|
|
179 else
|
|
180 {
|
|
181 return (static_cast<float>(it->second.done_) /
|
|
182 static_cast<float>(it->second.size_));
|
|
183 }
|
|
184 }
|
|
185
|
|
186
|
|
187 bool BagOfTasksProcessor::Handle::Join()
|
|
188 {
|
|
189 if (hasJoined_)
|
|
190 {
|
|
191 return status_;
|
|
192 }
|
|
193 else
|
|
194 {
|
|
195 status_ = that_.Join(bag_);
|
|
196 hasJoined_ = true;
|
|
197 return status_;
|
|
198 }
|
|
199 }
|
|
200
|
|
201
|
|
202 BagOfTasksProcessor::BagOfTasksProcessor(size_t countThreads) :
|
|
203 countBags_(0),
|
|
204 continue_(true)
|
|
205 {
|
|
206 if (countThreads == 0)
|
|
207 {
|
|
208 throw OrthancException(ErrorCode_ParameterOutOfRange);
|
|
209 }
|
|
210
|
|
211 threads_.resize(countThreads);
|
|
212
|
|
213 for (size_t i = 0; i < threads_.size(); i++)
|
|
214 {
|
|
215 threads_[i] = new boost::thread(Worker, this);
|
|
216 }
|
|
217 }
|
|
218
|
|
219
|
|
220 BagOfTasksProcessor::~BagOfTasksProcessor()
|
|
221 {
|
|
222 continue_ = false;
|
|
223
|
|
224 bagFinished_.notify_all(); // Wakes up all the pending "Join()"
|
|
225
|
|
226 for (size_t i = 0; i < threads_.size(); i++)
|
|
227 {
|
|
228 if (threads_[i])
|
|
229 {
|
|
230 if (threads_[i]->joinable())
|
|
231 {
|
|
232 threads_[i]->join();
|
|
233 }
|
|
234
|
|
235 delete threads_[i];
|
|
236 threads_[i] = NULL;
|
|
237 }
|
|
238 }
|
|
239 }
|
|
240
|
|
241
|
|
242 BagOfTasksProcessor::Handle* BagOfTasksProcessor::Submit(BagOfTasks& tasks)
|
|
243 {
|
|
244 if (tasks.GetSize() == 0)
|
|
245 {
|
|
246 return new Handle(*this, 0, true);
|
|
247 }
|
|
248
|
|
249 boost::mutex::scoped_lock lock(mutex_);
|
|
250
|
|
251 uint64_t id = countBags_;
|
|
252 countBags_ += 1;
|
|
253
|
|
254 Bag bag(tasks.GetSize());
|
|
255 bags_[id] = bag;
|
|
256
|
|
257 while (!tasks.IsEmpty())
|
|
258 {
|
|
259 queue_.Enqueue(new Task(id, tasks.Pop()));
|
|
260 }
|
|
261
|
|
262 return new Handle(*this, id, false);
|
|
263 }
|
|
264 }
|