--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/ServerJobs/LuaJobManager.cpp	Fri May 18 17:02:25 2018 +0200
@@ -0,0 +1,131 @@
+/**
+ * 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/>.
+ **/
+
+
+#include "../PrecompiledHeadersServer.h"
+#include "LuaJobManager.h"
+
+
+namespace Orthanc
+{
+  void LuaJobManager::ConnectionTimeoutThread(LuaJobManager* manager)
+  {
+    while (manager->continue_)
+    {
+      manager->connectionManager_.CheckTimeout();
+      boost::this_thread::sleep(boost::posix_time::milliseconds(100));
+    }
+  }
+
+    
+  void LuaJobManager::SignalDone(const SequenceOfOperationsJob& job)
+  {
+    boost::mutex::scoped_lock lock(mutex_);
+
+    if (&job == currentJob_)
+    {
+      currentId_.clear();
+      currentJob_ = NULL;
+    }
+  }
+
+
+  LuaJobManager::LuaJobManager(JobsEngine&  engine) :
+    engine_(engine),
+    currentJob_(NULL),
+    maxOperations_(1000),
+    priority_(0),
+    continue_(true)
+  {
+    connectionTimeoutThread_ = boost::thread(ConnectionTimeoutThread, this);
+  }
+
+
+  LuaJobManager::~LuaJobManager()
+  {
+    continue_ = false;
+
+    if (connectionTimeoutThread_.joinable())
+    {
+      connectionTimeoutThread_.join();
+    }
+  }
+
+
+  void LuaJobManager::SetMaxOperationsPerJob(size_t count)
+  {
+    boost::mutex::scoped_lock lock(mutex_);
+    maxOperations_ = count;
+  }
+
+
+  void LuaJobManager::SetPriority(int priority)
+  {
+    boost::mutex::scoped_lock lock(mutex_);
+    priority_ = priority;
+  }
+
+
+  void LuaJobManager::SetTrailingOperationTimeout(unsigned int timeout)
+  {
+    boost::mutex::scoped_lock lock(mutex_);
+    trailingTimeout_ = timeout;
+  }
+
+
+  LuaJobManager::Lock* LuaJobManager::Modify()
+  {
+    boost::mutex::scoped_lock lock(mutex_);
+
+    if (currentJob_ != NULL)
+    {
+      std::auto_ptr<Lock> result(new Lock(*currentJob_));
+
+      if (!result->IsDone() &&
+          result->GetOperationsCount() < maxOperations_)
+      {
+        return result.release();
+      }
+    }
+
+    // Need to create a new job, as the previous one is either
+    // finished, or is getting too long
+    currentJob_ = new SequenceOfOperationsJob;
+
+    engine_.GetRegistry().Submit(currentId_, currentJob_, priority_);
+
+    std::auto_ptr<Lock> result(new Lock(*currentJob_));
+    result->SetTrailingOperationTimeout(trailingTimeout_);
+
+    return result.release();
+  }
+}