--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/JobsEngine/Operations/SequenceOfOperationsJob.h	Fri May 18 17:02:25 2018 +0200
@@ -0,0 +1,153 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "../IJob.h"
+#include "IJobOperation.h"
+
+#include <boost/thread/mutex.hpp>
+#include <boost/thread/condition_variable.hpp>
+
+#include <list>
+
+namespace Orthanc
+{
+  class SequenceOfOperationsJob : public IJob
+  {
+  public:
+    class IObserver : public boost::noncopyable
+    {
+    public:
+      virtual ~IObserver()
+      {
+      }
+
+      virtual void SignalDone(const SequenceOfOperationsJob& job) = 0;
+    };
+
+  private:
+    class Operation;
+
+    std::string                       jobType_;
+    bool                              done_;
+    boost::mutex                      mutex_;
+    std::vector<Operation*>           operations_;
+    size_t                            current_;
+    boost::condition_variable         operationAdded_;
+    boost::posix_time::time_duration  trailingTimeout_;
+    std::list<IObserver*>             observers_;
+
+    void Setup();
+
+  public:
+    SequenceOfOperationsJob() :
+      jobType_("SequenceOfOperations")
+    {
+      Setup();
+    }    
+
+    SequenceOfOperationsJob(const std::string& jobType) :
+      jobType_(jobType)
+    {
+      Setup();
+    }    
+
+    virtual ~SequenceOfOperationsJob();
+
+    void Register(IObserver& observer);
+
+    // This lock allows adding new operations to the end of the job,
+    // from another thread than the worker thread, after the job has
+    // been submitted for processing
+    class Lock : public boost::noncopyable
+    {
+    private:
+      SequenceOfOperationsJob&   that_;
+      boost::mutex::scoped_lock  lock_;
+
+    public:
+      Lock(SequenceOfOperationsJob& that) :
+      that_(that),
+      lock_(that.mutex_)
+      {
+      }
+
+      bool IsDone() const
+      {
+        return that_.done_;
+      }
+
+      void SetTrailingOperationTimeout(unsigned int timeout);
+
+      size_t AddOperation(IJobOperation* operation);
+
+      size_t GetOperationsCount() const
+      {
+        return that_.operations_.size();
+      }
+
+      void AddInput(size_t index,
+                    const JobOperationValue& value);
+      
+      void Connect(size_t input,
+                   size_t output);
+    };
+
+    virtual void Start()
+    {
+    }
+
+    virtual JobStepResult ExecuteStep();
+
+    virtual void SignalResubmit();
+
+    virtual void ReleaseResources()
+    {
+    }
+
+    virtual float GetProgress();
+
+    virtual void GetJobType(std::string& target)
+    {
+      target = jobType_;
+    }
+
+    virtual void GetPublicContent(Json::Value& value);
+
+    virtual void GetInternalContent(Json::Value& value)
+    {
+      // TODO
+    }
+  };
+}