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diff --git a/decoder/include/common/ocsd_dcd_tree_elem.h b/decoder/include/common/ocsd_dcd_tree_elem.h
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+++ b/decoder/include/common/ocsd_dcd_tree_elem.h
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+/*!
+ * \file       ocsd_dcd_tree_elem.h
+ * \brief      OpenCSD : Decode tree element.
+ * 
+ * \copyright  Copyright (c) 2015, ARM Limited. All Rights Reserved.
+ */
+
+/* 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. 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. 
+ * 
+ * 3. Neither the name of the copyright holder 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 HOLDER 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. 
+ */ 
+
+#ifndef ARM_OCSD_DCD_TREE_ELEM_H_INCLUDED
+#define ARM_OCSD_DCD_TREE_ELEM_H_INCLUDED
+
+#include "common/ocsd_dcd_mngr_i.h"
+#include "common/trc_component.h"
+
+/** @addtogroup dcd_tree
+@{*/
+
+/*!  @struct _decoder_elements 
+ *   @brief Decode tree element base structure.
+ *
+ *  Element describes the protocol supported for this element and 
+ *  contains pointers to the decoder manager interface and component handle.
+ */
+typedef struct _decoder_elements 
+{
+    std::string dcd_name;       //!< Registered name of the decoder
+    TraceComponent *dcd_handle; //!< handle to the decoder object
+    IDecoderMngr *dcd_mngr;     //!< pointer to the decoder manager interface for the decodcer
+    ocsd_trace_protocol_t protocol;//!< protocol type 
+    bool created;  /**< decode tree created this element (destroy it on tree destruction) */
+} decoder_element;
+
+/*!
+ *  @class DecodeTreeElement   
+ *  @brief Decode tree element
+ *
+ *  Decoder tree elements are references to individual decoders in the tree.
+ *  These allow iteration of all decoders in the tree to perform common operations.
+ *  
+ * The DecodeTree contains a list of elements.
+ */
+class DecodeTreeElement : protected decoder_element
+{
+public:
+    DecodeTreeElement();
+    ~DecodeTreeElement() {};
+
+    void SetDecoderElement(const std::string &name, IDecoderMngr *dcdMngr, TraceComponent *pHandle, bool bCreated);
+    void DestroyElem();
+
+    const std::string &getDecoderTypeName()  { return dcd_name; };
+    IDecoderMngr *getDecoderMngr() { return dcd_mngr; };
+    ocsd_trace_protocol_t getProtocol() const { return protocol; };
+    TraceComponent *getDecoderHandle() { return dcd_handle; };
+};
+
+inline DecodeTreeElement::DecodeTreeElement()
+{
+    dcd_name = "unknown";
+    dcd_mngr = 0;
+    dcd_handle = 0;
+    protocol = OCSD_PROTOCOL_END;  
+    created = false;
+}
+
+inline void DecodeTreeElement::SetDecoderElement(const std::string &name, IDecoderMngr *dcdMngr, TraceComponent *pHandle, bool bCreated)
+{
+    dcd_name = name;
+    dcd_mngr = dcdMngr;
+    dcd_handle = pHandle;
+    protocol = OCSD_PROTOCOL_UNKNOWN;  
+    if(dcd_mngr)
+        protocol = dcd_mngr->getProtocolType();
+    created = bCreated;
+}
+
+inline void DecodeTreeElement::DestroyElem()
+{
+    if(created && (dcd_mngr != 0) && (dcd_handle != 0))
+        dcd_mngr->destroyDecoder(dcd_handle);
+}
+
+/** @}*/
+#endif // ARM_OCSD_DCD_TREE_ELEM_H_INCLUDED
+
+/* End of File ocsd_dcd_tree_elem.h */