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diff --git a/cpukit/include/rtems/score/corebarrier.h b/cpukit/include/rtems/score/corebarrier.h
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+++ b/cpukit/include/rtems/score/corebarrier.h
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+/**
+ *  @file rtems/score/corebarrier.h
+ *
+ *  @brief Constants and Structures Associated with the Barrier Handler
+ *
+ *  This include file contains all the constants and structures associated
+ *  with the Barrier Handler.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2007.
+ *  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.
+ */
+
+#ifndef _RTEMS_SCORE_COREBARRIER_H
+#define _RTEMS_SCORE_COREBARRIER_H
+
+#include <rtems/score/threadq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  @defgroup ScoreBarrier Barrier Handler
+ *
+ *  @ingroup Score
+ *
+ *  This handler encapsulates functionality which provides the foundation
+ *  Barrier services used in all of the APIs supported by RTEMS.
+ */
+/**@{*/
+
+/**
+ *  Flavors of barriers.
+ */
+typedef enum {
+  /** This specifies that the barrier will automatically release when
+   *  the user specified number of threads have arrived at the barrier.
+   */
+  CORE_BARRIER_AUTOMATIC_RELEASE,
+  /** This specifies that the user will have to manually release the barrier
+   *  in order to release the waiting threads.
+   */
+  CORE_BARRIER_MANUAL_RELEASE
+}   CORE_barrier_Disciplines;
+
+/**
+ *  The following defines the control block used to manage the
+ *  attributes of each barrier.
+ */
+typedef struct {
+  /** This field indicates whether the barrier is automatic or manual.
+   */
+  CORE_barrier_Disciplines  discipline;
+  /** This element indicates the number of threads which must arrive at the
+   *  barrier to trip the automatic release.
+   */
+  uint32_t                  maximum_count;
+}   CORE_barrier_Attributes;
+
+/**
+ *  The following defines the control block used to manage each
+ *  barrier.
+ */
+typedef struct {
+  /** This field is the Waiting Queue used to manage the set of tasks
+   *  which are blocked waiting for the barrier to be released.
+   */
+  Thread_queue_Control     Wait_queue;
+  /** This element is the set of attributes which define this instance's
+   *  behavior.
+   */
+  CORE_barrier_Attributes  Attributes;
+  /** This element contains the current number of thread waiting for this
+   *  barrier to be released. */
+  uint32_t                 number_of_waiting_threads;
+}   CORE_barrier_Control;
+
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/*  end of include file */