--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Loaders/GenericLoadersContext.h	Mon Dec 09 13:58:37 2019 +0100
@@ -0,0 +1,85 @@
+/**
+ * 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
+
+#include "../Messages/IMessageEmitter.h"
+#include "../Oracle/ThreadedOracle.h"
+#include "DicomSource.h"
+#include "ILoaderFactory.h"
+#include "OracleScheduler.h"
+
+#include <Core/HttpClient.h>
+#include <Core/Toolbox.h>
+
+#include <boost/thread/recursive_mutex.hpp>
+
+namespace OrthancStone
+{
+  class GenericLoadersContext : 
+    public ILoadersContext,
+    private IMessageEmitter
+  {
+  private:
+    class Locker;
+
+    // "Recursive mutex" is necessary, to be able to run
+    // "ILoaderFactory" from a message handler triggered by
+    // "EmitMessage()"
+    boost::recursive_mutex  mutex_;
+
+    IObservable                         oracleObservable_;
+    std::auto_ptr<ThreadedOracle>       oracle_;
+    boost::shared_ptr<OracleScheduler>  scheduler_;
+
+    // Necessary to keep the loaders persistent (including global
+    // function promises), after the function that created them is
+    // left. This avoids creating one global variable for each loader.
+    std::list< boost::shared_ptr<IObserver> >  loaders_; 
+
+    virtual void EmitMessage(boost::weak_ptr<IObserver> observer,
+                             const IMessage& message);
+
+  public:
+    GenericLoadersContext(unsigned int maxHighPriority,
+                        unsigned int maxStandardPriority,
+                          unsigned int maxLowPriority);
+
+    virtual ~GenericLoadersContext();
+   
+    virtual ILock* Lock() ORTHANC_OVERRIDE;
+
+    virtual void GetStatistics(uint64_t& scheduledCommands,
+                               uint64_t& processedCommands) ORTHANC_OVERRIDE;
+
+    void SetOrthancParameters(const Orthanc::WebServiceParameters& parameters);
+
+    void SetRootDirectory(const std::string& root);
+    
+    void SetDicomCacheSize(size_t size);
+
+    void StartOracle();
+
+    void StopOracle();
+
+    void WaitUntilComplete();
+  };
+}