--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Oracle/ThreadedOracle.h	Wed May 22 14:46:26 2019 +0200
@@ -0,0 +1,96 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * 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
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#if !defined(ORTHANC_ENABLE_THREADS)
+#  error The macro ORTHANC_ENABLE_THREADS must be defined
+#endif
+
+#if ORTHANC_ENABLE_THREADS != 1
+#  error This file can only compiled for native targets
+#endif
+
+#include "../Messages/IMessageEmitter.h"
+#include "IOracle.h"
+
+#include <Core/WebServiceParameters.h>
+#include <Core/MultiThreading/SharedMessageQueue.h>
+
+
+namespace OrthancStone
+{
+  class ThreadedOracle : public IOracle
+  {
+  private:
+    enum State
+    {
+      State_Setup,
+      State_Running,
+      State_Stopped
+    };
+
+    class Item;
+    class SleepingCommands;
+
+    IMessageEmitter&                     emitter_;
+    Orthanc::WebServiceParameters        orthanc_;
+    Orthanc::SharedMessageQueue          queue_;
+    State                                state_;
+    boost::mutex                         mutex_;
+    std::vector<boost::thread*>          workers_;
+    boost::shared_ptr<SleepingCommands>  sleepingCommands_;
+    boost::thread                        sleepingWorker_;
+    unsigned int                         sleepingTimeResolution_;
+
+    void Step();
+
+    static void Worker(ThreadedOracle* that);
+
+    static void SleepingWorker(ThreadedOracle* that);
+
+    void StopInternal();
+
+  public:
+    ThreadedOracle(IMessageEmitter& emitter);
+
+    virtual ~ThreadedOracle()
+    {
+      StopInternal();
+    }
+
+    void SetOrthancParameters(const Orthanc::WebServiceParameters& orthanc);
+
+    void SetWorkersCount(unsigned int count);
+
+    void SetSleepingTimeResolution(unsigned int milliseconds);
+
+    void Start();
+
+    void Stop()
+    {
+      StopInternal();
+    }
+
+    virtual void Schedule(const IObserver& receiver,
+                          IOracleCommand* command);
+  };
+}