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diff --git a/include/rtems/posix/keyimpl.h b/include/rtems/posix/keyimpl.h
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+/**
+ * @file
+ *
+ * @brief Private Inlined Routines for POSIX Key's
+ *
+ * This include file contains the static inline implementation of the private
+ * inlined routines for POSIX key's.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/posix/key.h>
+#include <rtems/score/chainimpl.h>
+#include <rtems/score/freechain.h>
+#include <rtems/score/objectimpl.h>
+#include <rtems/score/percpu.h>
+
+#ifndef _RTEMS_POSIX_KEYIMPL_H
+#define _RTEMS_POSIX_KEYIMPL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @addtogroup POSIX_KEY
+ *
+ * @{
+ */
+
+/**
+ * @brief The information control block used to manage this class of objects.
+ */
+POSIX_EXTERN Objects_Information  _POSIX_Keys_Information;
+
+/**
+ * @brief The rbtree control block used to manage all key values
+ */
+extern RBTree_Control _POSIX_Keys_Key_value_lookup_tree;
+
+/**
+ * @brief This freechain is used as a memory pool for POSIX_Keys_Key_value_pair.
+ */
+POSIX_EXTERN Freechain_Control _POSIX_Keys_Keypool;
+
+#define POSIX_KEYS_RBTREE_NODE_TO_KEY_VALUE_PAIR( node ) \
+  RTEMS_CONTAINER_OF( node, POSIX_Keys_Key_value_pair, Key_value_lookup_node )
+
+/**
+ * @brief POSIX key manager initialization.
+ *
+ * This routine performs the initialization necessary for this manager.
+ */
+void _POSIX_Key_Manager_initialization(void);
+
+/**
+ * @brief POSIX keys Red-Black tree node comparison.
+ *
+ * This routine compares the rbtree node
+ */
+RBTree_Compare_result _POSIX_Keys_Key_value_compare(
+  const RBTree_Node *node1,
+  const RBTree_Node *node2
+);
+
+/**
+ * @brief Create thread-specific data POSIX key.
+ *
+ * This function executes all the destructors associated with the thread's
+ * keys.  This function will execute until all values have been set to NULL.
+ *
+ * @param[in] thread is a pointer to the thread whose keys should have
+ *            all their destructors run.
+ *
+ * NOTE: This is the routine executed when a thread exits to
+ *       run through all the keys and do the destructor action.
+ */
+void _POSIX_Keys_Run_destructors(
+  Thread_Control *thread
+);
+
+/**
+ * @brief Free a POSIX key table memory.
+ *
+ * This memory frees the key table memory associated with @a the_key.
+ *
+ * @param[in] the_key is a pointer to the POSIX key to free
+ * the table memory of.
+ */
+void _POSIX_Keys_Free_memory(
+  POSIX_Keys_Control *the_key
+);
+
+/**
+ * @brief Free a POSIX keys control block.
+ *
+ * This routine frees a keys control block to the
+ * inactive chain of free keys control blocks.
+ *
+ * @param[in] the_key is a pointer to the POSIX key to free.
+ */
+RTEMS_INLINE_ROUTINE void _POSIX_Keys_Free (
+  POSIX_Keys_Control *the_key
+);
+
+/**
+ * @brief Allocate a keys control block.
+ *
+ * This function allocates a keys control block from
+ * the inactive chain of free keys control blocks.
+ */
+
+RTEMS_INLINE_ROUTINE POSIX_Keys_Control *_POSIX_Keys_Allocate( void )
+{
+  return (POSIX_Keys_Control *) _Objects_Allocate( &_POSIX_Keys_Information );
+}
+
+/**
+ * @brief Free a keys control block.
+ *
+ * This routine frees a keys control block to the
+ * inactive chain of free keys control blocks.
+ */
+RTEMS_INLINE_ROUTINE void _POSIX_Keys_Free (
+  POSIX_Keys_Control *the_key
+)
+{
+  _Objects_Free( &_POSIX_Keys_Information, &the_key->Object );
+}
+
+/**
+ * @brief Get a keys control block.
+ *
+ * This function maps key IDs to key control blocks.
+ * If ID corresponds to a local keys, then it returns
+ * the_key control pointer which maps to ID and location
+ * is set to OBJECTS_LOCAL.  if the keys ID is global and
+ * resides on a remote node, then location is set to OBJECTS_REMOTE,
+ * and the_key is undefined.  Otherwise, location is set
+ * to OBJECTS_ERROR and the_key is undefined.
+ */
+
+RTEMS_INLINE_ROUTINE POSIX_Keys_Control *_POSIX_Keys_Get (
+  pthread_key_t      id,
+  Objects_Locations *location
+)
+{
+  return (POSIX_Keys_Control *)
+    _Objects_Get( &_POSIX_Keys_Information, (Objects_Id) id, location );
+}
+
+POSIX_Keys_Key_value_pair * _POSIX_Keys_Key_value_pair_allocate( void );
+
+RTEMS_INLINE_ROUTINE void _POSIX_Keys_Key_value_pair_free(
+  POSIX_Keys_Key_value_pair *key_value_pair
+)
+{
+  _Freechain_Put( &_POSIX_Keys_Keypool, key_value_pair );
+}
+
+RTEMS_INLINE_ROUTINE RBTree_Node *_POSIX_Keys_Find(
+  pthread_key_t   key,
+  Thread_Control *thread
+)
+{
+  POSIX_Keys_Key_value_pair search_node;
+
+  search_node.key = key;
+  search_node.thread = thread;
+
+  return _RBTree_Find(
+    &_POSIX_Keys_Key_value_lookup_tree,
+    &search_node.Key_value_lookup_node,
+    _POSIX_Keys_Key_value_compare,
+    true
+  );
+}
+
+RTEMS_INLINE_ROUTINE void _POSIX_Keys_Free_key_value_pair(
+  POSIX_Keys_Key_value_pair *key_value_pair
+)
+{
+  _RBTree_Extract(
+    &_POSIX_Keys_Key_value_lookup_tree,
+    &key_value_pair->Key_value_lookup_node
+  );
+  _Chain_Extract_unprotected( &key_value_pair->Key_values_per_thread_node );
+  _POSIX_Keys_Key_value_pair_free( key_value_pair );
+}
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*  end of include file */