--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Sources/SQLite/StatementReference.h	Wed Jun 10 20:30:34 2020 +0200
@@ -0,0 +1,86 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ *
+ * Copyright (C) 2012-2016 Sebastien Jodogne <s.jodogne@orthanc-labs.com>,
+ * Medical Physics Department, CHU of Liege, Belgium
+ *
+ * Copyright (c) 2012 The Chromium Authors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *    * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *    * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *    * Neither the name of Google Inc., the name of the CHU of Liege,
+ * nor the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **/
+
+
+#pragma once
+
+#if ORTHANC_SQLITE_STANDALONE == 1
+#  define ORTHANC_PUBLIC
+#else
+#  include "../OrthancFramework.h"
+#endif
+
+#include "NonCopyable.h"
+#include "SQLiteTypes.h"
+
+#include <stdint.h>
+#include <cassert>
+#include <stdlib.h>
+
+
+namespace Orthanc
+{
+  namespace SQLite
+  {
+    class ORTHANC_PUBLIC StatementReference : NonCopyable
+    {
+    private:
+      StatementReference* root_;   // Only used for non-root nodes
+      uint32_t refCount_;         // Only used for root node
+      struct sqlite3_stmt* statement_;
+
+      bool IsRoot() const;
+
+    public:
+      StatementReference();
+
+      StatementReference(sqlite3* database,
+                         const char* sql);
+
+      StatementReference(StatementReference& other);
+
+      ~StatementReference();
+
+      uint32_t GetReferenceCount() const;
+
+      struct sqlite3_stmt* GetWrappedObject() const
+      {
+        assert(statement_ != NULL);
+        return statement_;
+      }
+    };
+  }
+}