Mercurial > hg > orthanc
annotate Core/JobsEngine/JobsRegistry.h @ 2658:ce770f095092 jobs
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 06 Jun 2018 18:37:43 +0200 |
| parents | e1893d31652a |
| children | 5fa2f2ce74f0 |
| rev | line source |
|---|---|
| 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 { | |
| 58 private: | |
| 59 class JobHandler; | |
| 60 | |
| 61 struct PriorityComparator | |
| 62 { | |
| 63 bool operator() (JobHandler*& a, | |
| 64 JobHandler*& b) const; | |
| 65 }; | |
| 66 | |
| 67 typedef std::map<std::string, JobHandler*> JobsIndex; | |
| 68 typedef std::list<JobHandler*> CompletedJobs; | |
| 69 typedef std::set<JobHandler*> RetryJobs; | |
| 70 typedef std::priority_queue<JobHandler*, | |
| 71 std::vector<JobHandler*>, // Could be a "std::deque" | |
| 72 PriorityComparator> PendingJobs; | |
| 73 | |
| 74 boost::mutex mutex_; | |
| 75 JobsIndex jobsIndex_; | |
| 76 PendingJobs pendingJobs_; | |
| 77 CompletedJobs completedJobs_; | |
| 78 RetryJobs retryJobs_; | |
| 79 | |
| 80 boost::condition_variable pendingJobAvailable_; | |
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81 boost::condition_variable someJobComplete_; |
| 2569 | 82 size_t maxCompletedJobs_; |
| 83 | |
| 84 | |
| 85 #ifndef NDEBUG | |
| 86 bool IsPendingJob(const JobHandler& job) const; | |
| 87 | |
| 88 bool IsCompletedJob(JobHandler& job) const; | |
| 89 | |
| 90 bool IsRetryJob(JobHandler& job) const; | |
| 91 #endif | |
| 92 | |
| 93 void CheckInvariants() const; | |
| 94 | |
| 95 void ForgetOldCompletedJobs(); | |
| 96 | |
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97 void SetCompletedJob(JobHandler& job, |
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98 bool success); |
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99 |
| 2569 | 100 void MarkRunningAsCompleted(JobHandler& job, |
| 101 bool success); | |
| 102 | |
| 103 void MarkRunningAsRetry(JobHandler& job, | |
| 104 unsigned int timeout); | |
| 105 | |
| 106 void MarkRunningAsPaused(JobHandler& job); | |
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107 |
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108 bool GetStateInternal(JobState& state, |
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109 const std::string& id); |
| 2569 | 110 |
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111 void RemovePendingJob(const std::string& id); |
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112 |
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113 void RemoveRetryJob(JobHandler* handler); |
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114 |
| 2569 | 115 public: |
| 116 JobsRegistry() : | |
| 117 maxCompletedJobs_(10) | |
| 118 { | |
| 119 } | |
| 120 | |
| 121 | |
| 122 ~JobsRegistry(); | |
| 123 | |
| 124 void SetMaxCompletedJobs(size_t i); | |
| 125 | |
| 126 void ListJobs(std::set<std::string>& target); | |
| 127 | |
| 128 bool GetJobInfo(JobInfo& target, | |
| 129 const std::string& id); | |
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130 |
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131 void Serialize(Json::Value& target); |
| 2569 | 132 |
| 133 void Submit(std::string& id, | |
| 134 IJob* job, // Takes ownership | |
| 135 int priority); | |
| 136 | |
| 137 void Submit(IJob* job, // Takes ownership | |
| 138 int priority); | |
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139 |
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140 bool SubmitAndWait(IJob* job, // Takes ownership |
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141 int priority); |
| 2569 | 142 |
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143 bool SetPriority(const std::string& id, |
| 2569 | 144 int priority); |
| 145 | |
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146 bool Pause(const std::string& id); |
| 2569 | 147 |
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148 bool Resume(const std::string& id); |
| 2569 | 149 |
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150 bool Resubmit(const std::string& id); |
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151 |
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152 bool Cancel(const std::string& id); |
| 2569 | 153 |
| 154 void ScheduleRetries(); | |
| 155 | |
| 156 bool GetState(JobState& state, | |
| 157 const std::string& id); | |
| 158 | |
| 159 class RunningJob : public boost::noncopyable | |
| 160 { | |
| 161 private: | |
| 162 JobsRegistry& registry_; | |
| 163 JobHandler* handler_; // Can only be accessed if the | |
| 164 // registry mutex is locked! | |
| 165 IJob* job_; // Will by design be in mutual exclusion, | |
| 166 // because only one RunningJob can be | |
| 167 // executed at a time on a JobHandler | |
| 168 | |
| 169 std::string id_; | |
| 170 int priority_; | |
| 171 JobState targetState_; | |
| 172 unsigned int targetRetryTimeout_; | |
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173 bool canceled_; |
| 2569 | 174 |
| 175 public: | |
| 176 RunningJob(JobsRegistry& registry, | |
| 177 unsigned int timeout); | |
| 178 | |
| 179 ~RunningJob(); | |
| 180 | |
| 181 bool IsValid() const; | |
| 182 | |
| 183 const std::string& GetId() const; | |
| 184 | |
| 185 int GetPriority() const; | |
| 186 | |
| 187 IJob& GetJob(); | |
| 188 | |
| 189 bool IsPauseScheduled(); | |
| 190 | |
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191 bool IsCancelScheduled(); |
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192 |
| 2569 | 193 void MarkSuccess(); |
| 194 | |
| 195 void MarkFailure(); | |
| 196 | |
| 197 void MarkPause(); | |
| 198 | |
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199 void MarkCanceled(); |
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200 |
| 2569 | 201 void MarkRetry(unsigned int timeout); |
| 202 | |
| 203 void UpdateStatus(ErrorCode code); | |
| 204 }; | |
| 205 }; | |
| 206 } |