--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/MultiThreading/BagOfTasks.h	Mon Oct 08 12:12:39 2018 +0200
@@ -0,0 +1,72 @@
+/**
+ * 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 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 "ICommand.h"
+
+#include <list>
+#include <cstddef>
+
+namespace Orthanc
+{
+  class BagOfTasks : public boost::noncopyable
+  {
+  private:
+    typedef std::list<ICommand*>  Tasks;
+
+    Tasks  tasks_;
+
+  public:
+    ~BagOfTasks()
+    {
+      for (Tasks::iterator it = tasks_.begin(); it != tasks_.end(); ++it)
+      {
+        delete *it;
+      }
+    }
+
+    ICommand* Pop()
+    {
+      ICommand* task = tasks_.front();
+      tasks_.pop_front();
+      return task;
+    }
+
+    void Push(ICommand* task)   // Takes ownership
+    {
+      if (task != NULL)
+      {
+        tasks_.push_back(task);
+      }
+    }
+
+    size_t GetSize() const
+    {
+      return tasks_.size();
+    }
+
+    bool IsEmpty() const
+    {
+      return tasks_.empty();
+    }
+  };
+}