Mercurial > hg > orthanc
annotate Core/JobsEngine/JobsRegistry.h @ 2857:482631e4e290
added mime type for WASM in WebSkeleton
| author | am@osimis.io |
|---|---|
| date | Wed, 03 Oct 2018 16:13:19 +0200 |
| parents | 8e0bc055d18c |
| children | 251614c2edac |
| rev | line source |
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| 2569 | 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 General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #pragma once | |
| 35 | |
| 36 #if !defined(ORTHANC_SANDBOXED) | |
| 37 # error The macro ORTHANC_SANDBOXED must be defined | |
| 38 #endif | |
| 39 | |
| 40 #if ORTHANC_SANDBOXED == 1 | |
| 41 # error The job engine cannot be used in sandboxed environments | |
| 42 #endif | |
| 43 | |
| 44 #include "JobInfo.h" | |
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45 #include "IJobUnserializer.h" |
| 2569 | 46 |
| 47 #include <list> | |
| 48 #include <set> | |
| 49 #include <queue> | |
| 50 #include <boost/thread/mutex.hpp> | |
| 51 #include <boost/thread/condition_variable.hpp> | |
| 52 | |
| 53 namespace Orthanc | |
| 54 { | |
| 55 // This class handles the state machine of the jobs engine | |
| 56 class JobsRegistry : public boost::noncopyable | |
| 57 { | |
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58 public: |
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59 class IObserver : public boost::noncopyable |
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60 { |
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61 public: |
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62 virtual ~IObserver() |
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63 { |
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64 } |
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65 |
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66 virtual void SignalJobSubmitted(const std::string& jobId) = 0; |
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67 |
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68 virtual void SignalJobSuccess(const std::string& jobId) = 0; |
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69 |
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70 virtual void SignalJobFailure(const std::string& jobId) = 0; |
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71 }; |
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72 |
| 2569 | 73 private: |
| 74 class JobHandler; | |
| 75 | |
| 76 struct PriorityComparator | |
| 77 { | |
| 78 bool operator() (JobHandler*& a, | |
| 79 JobHandler*& b) const; | |
| 80 }; | |
| 81 | |
| 82 typedef std::map<std::string, JobHandler*> JobsIndex; | |
| 83 typedef std::list<JobHandler*> CompletedJobs; | |
| 84 typedef std::set<JobHandler*> RetryJobs; | |
| 85 typedef std::priority_queue<JobHandler*, | |
| 86 std::vector<JobHandler*>, // Could be a "std::deque" | |
| 87 PriorityComparator> PendingJobs; | |
| 88 | |
| 89 boost::mutex mutex_; | |
| 90 JobsIndex jobsIndex_; | |
| 91 PendingJobs pendingJobs_; | |
| 92 CompletedJobs completedJobs_; | |
| 93 RetryJobs retryJobs_; | |
| 94 | |
| 95 boost::condition_variable pendingJobAvailable_; | |
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96 boost::condition_variable someJobComplete_; |
| 2569 | 97 size_t maxCompletedJobs_; |
| 98 | |
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99 IObserver* observer_; |
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100 |
| 2569 | 101 |
| 102 #ifndef NDEBUG | |
| 103 bool IsPendingJob(const JobHandler& job) const; | |
| 104 | |
| 105 bool IsCompletedJob(JobHandler& job) const; | |
| 106 | |
| 107 bool IsRetryJob(JobHandler& job) const; | |
| 108 #endif | |
| 109 | |
| 110 void CheckInvariants() const; | |
| 111 | |
| 112 void ForgetOldCompletedJobs(); | |
| 113 | |
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114 void SetCompletedJob(JobHandler& job, |
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115 bool success); |
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116 |
| 2569 | 117 void MarkRunningAsCompleted(JobHandler& job, |
| 118 bool success); | |
| 119 | |
| 120 void MarkRunningAsRetry(JobHandler& job, | |
| 121 unsigned int timeout); | |
| 122 | |
| 123 void MarkRunningAsPaused(JobHandler& job); | |
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124 |
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125 bool GetStateInternal(JobState& state, |
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126 const std::string& id); |
| 2569 | 127 |
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128 void RemovePendingJob(const std::string& id); |
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129 |
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130 void RemoveRetryJob(JobHandler* handler); |
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131 |
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132 void SubmitInternal(std::string& id, |
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133 JobHandler* handler, |
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134 bool keepLastChangeTime); |
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135 |
| 2569 | 136 public: |
| 137 JobsRegistry() : | |
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138 maxCompletedJobs_(10), |
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139 observer_(NULL) |
| 2569 | 140 { |
| 141 } | |
| 142 | |
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143 JobsRegistry(IJobUnserializer& unserializer, |
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144 const Json::Value& s); |
| 2569 | 145 |
| 146 ~JobsRegistry(); | |
| 147 | |
| 148 void SetMaxCompletedJobs(size_t i); | |
| 149 | |
| 150 void ListJobs(std::set<std::string>& target); | |
| 151 | |
| 152 bool GetJobInfo(JobInfo& target, | |
| 153 const std::string& id); | |
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154 |
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155 void Serialize(Json::Value& target); |
| 2569 | 156 |
| 157 void Submit(std::string& id, | |
| 158 IJob* job, // Takes ownership | |
| 159 int priority); | |
| 160 | |
| 161 void Submit(IJob* job, // Takes ownership | |
| 162 int priority); | |
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163 |
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164 bool SubmitAndWait(IJob* job, // Takes ownership |
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165 int priority); |
| 2569 | 166 |
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167 bool SetPriority(const std::string& id, |
| 2569 | 168 int priority); |
| 169 | |
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170 bool Pause(const std::string& id); |
| 2569 | 171 |
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172 bool Resume(const std::string& id); |
| 2569 | 173 |
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174 bool Resubmit(const std::string& id); |
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175 |
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176 bool Cancel(const std::string& id); |
| 2569 | 177 |
| 178 void ScheduleRetries(); | |
| 179 | |
| 180 bool GetState(JobState& state, | |
| 181 const std::string& id); | |
| 182 | |
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183 void SetObserver(IObserver& observer); |
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184 |
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185 void ResetObserver(); |
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186 |
| 2569 | 187 class RunningJob : public boost::noncopyable |
| 188 { | |
| 189 private: | |
| 190 JobsRegistry& registry_; | |
| 191 JobHandler* handler_; // Can only be accessed if the | |
| 192 // registry mutex is locked! | |
| 193 IJob* job_; // Will by design be in mutual exclusion, | |
| 194 // because only one RunningJob can be | |
| 195 // executed at a time on a JobHandler | |
| 196 | |
| 197 std::string id_; | |
| 198 int priority_; | |
| 199 JobState targetState_; | |
| 200 unsigned int targetRetryTimeout_; | |
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201 bool canceled_; |
| 2569 | 202 |
| 203 public: | |
| 204 RunningJob(JobsRegistry& registry, | |
| 205 unsigned int timeout); | |
| 206 | |
| 207 ~RunningJob(); | |
| 208 | |
| 209 bool IsValid() const; | |
| 210 | |
| 211 const std::string& GetId() const; | |
| 212 | |
| 213 int GetPriority() const; | |
| 214 | |
| 215 IJob& GetJob(); | |
| 216 | |
| 217 bool IsPauseScheduled(); | |
| 218 | |
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219 bool IsCancelScheduled(); |
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220 |
| 2569 | 221 void MarkSuccess(); |
| 222 | |
| 223 void MarkFailure(); | |
| 224 | |
| 225 void MarkPause(); | |
| 226 | |
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227 void MarkCanceled(); |
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228 |
| 2569 | 229 void MarkRetry(unsigned int timeout); |
| 230 | |
| 231 void UpdateStatus(ErrorCode code); | |
| 232 }; | |
| 233 }; | |
| 234 } |