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diff --git a/nsframework/framework_unified/client/include/native_service/ns_shared_mem.h b/nsframework/framework_unified/client/include/native_service/ns_shared_mem.h
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@@ -0,0 +1,100 @@
+/*
+ * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+///////////////////////////////////////////////////////////////////////////////
+/// \ingroup  tag_NSSharedMemory
+/// \brief Shared interface file for SharedMemory Service
+/// Detail description of interface and usage
+/// \ref http://ptcframeworkunifiedaccbuild2/TikiWiki/tiki-index.php?page=Shared+Memory
+///      http://ptcframeworkunifiedaspsql01/sites/ptcsweng/SW%20Engineering%20Document%20Library/
+///             Projects/Connected%20Color%20Radio%20(CCR)/Architecture/Framework/
+///             CCR%20Messaging.vsd
+///
+/// Declares the external APIs to Zone Player Service.
+///
+///////////////////////////////////////////////////////////////////////////////
+//@{
+/**
+ * @file ns_shared_mem.h
+ * @brief \~english Shared interface file for SharedMemory Service
+ *
+ */
+/** @addtogroup BaseSystem
+ *  @{
+ */
+/** @addtogroup native_service
+ *  @ingroup BaseSystem
+ *  @{
+ */
+/** @addtogroup framework_unified
+ *  @ingroup native_service
+ *  @{
+ */
+/** @addtogroup native
+ *  @ingroup framework_unified
+ *  @{
+ */
+
+#ifndef __CCR_NATIVESERVICES_MESSAGECENTER_SHAREDMEMORY_H__  // NOLINT  (build/header_guard)
+#define __CCR_NATIVESERVICES_MESSAGECENTER_SHAREDMEMORY_H__
+
+
+#include <native_service/frameworkunified_types.h>          ///< Header file for Template
+#include <stdint.h>
+#ifdef AGL_STUB
+#else
+#include <devctl.h>
+#include <sys/neutrino.h>
+#endif
+
+typedef struct _pulse_t TPosixHdr;  ///> Header for system-provided messages
+
+enum ESharedMemCommand {
+  eSharedMemCommandWrite = 1,
+  eSharedMemCommandRead = 2,
+  eSharedMemCommandSize = 3,
+  eSharedMemCommandDelete = 4,
+};
+
+#define NS_SHAREDMEM_NAME "NS_SharedMem"
+#define NS_SHAREDMEM_SOCK_QUEUE 10
+DEFINE_HANDLE_TYPE(SSHMemID, TShMemID);
+
+#ifdef AGL_STUB
+#else
+#include <_pack1.h>
+#endif
+struct SMsgHeader {
+  uint16_t cmd;  // Command to the NS_SharedMem
+  uintptr_t id;  // NS_SharedMem ID
+  UI_32 size;   // The size of the data to write to NS_SharedMem
+};
+
+struct SReplyHeader {
+  EFrameworkunifiedStatus status;  // write result
+  UI_32 size;     // The size of the data to read from NS_SharedMem
+};
+#ifdef AGL_STUB
+#else
+#include <_packpop.h>
+#endif
+
+#endif  // __CCR_NATIVESERVICES_MESSAGECENTER_SHAREDMEMORY_H__  // NOLINT  (build/header_guard)
+/** @}*/
+/** @}*/
+/** @}*/
+/** @}*/
+//@}