--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gpf2/inc/nuc/mb_defs.h	Sun Sep 25 23:38:58 2016 +0000
@@ -0,0 +1,114 @@
+/*************************************************************************/
+/*                                                                       */
+/*        Copyright (c) 1993-1996 Accelerated Technology, Inc.           */
+/*                                                                       */
+/* PROPRIETARY RIGHTS of Accelerated Technology are involved in the      */
+/* subject matter of this material.  All manufacturing, reproduction,    */
+/* use, and sales rights pertaining to this subject matter are governed  */
+/* by the license agreement.  The recipient of this software implicitly  */
+/* accepts the terms of the license.                                     */
+/*                                                                       */
+/*************************************************************************/
+
+/*************************************************************************/
+/*                                                                       */
+/* FILE NAME                                            VERSION          */
+/*                                                                       */
+/*      mb_defs.h                                       PLUS  1.2        */
+/*                                                                       */
+/* COMPONENT                                                             */
+/*                                                                       */
+/*      MB - Mailbox Management                                          */
+/*                                                                       */
+/* DESCRIPTION                                                           */
+/*                                                                       */
+/*      This file contains data structure definitions and constants for  */
+/*      the message Mailbox component.                                   */
+/*                                                                       */
+/* AUTHOR                                                                */
+/*                                                                       */
+/*      William E. Lamie, Accelerated Technology, Inc.                   */
+/*                                                                       */
+/* DATA STRUCTURES                                                       */
+/*                                                                       */
+/*      MB_MCB                              Mailbox control block        */
+/*      MB_SUSPEND                          Mailbox suspension block     */
+/*                                                                       */
+/* FUNCTIONS                                                             */
+/*                                                                       */
+/*      None                                                             */
+/*                                                                       */
+/* DEPENDENCIES                                                          */
+/*                                                                       */
+/*      cs_defs.h                           Common service definitions   */
+/*      tc_defs.h                           Thread Control definitions   */
+/*                                                                       */
+/* HISTORY                                                               */
+/*                                                                       */
+/*         NAME            DATE                    REMARKS               */
+/*                                                                       */
+/*      W. Lamie        03-01-1993      Created initial version 1.0      */
+/*      D. Lamie        04-19-1993      Verified version 1.0             */
+/*      W. Lamie        03-01-1994      Moved include files outside of   */
+/*                                        the file #ifndef to allow the  */
+/*                                        use of actual data structures, */
+/*                                        removed protection structure   */
+/*                                        inside of each mailbox, added  */
+/*                                        padding logic, resulting in    */
+/*                                        version 1.1                    */
+/*      R. Pfaff -                                                       */
+/*      D. Lamie        03-18-1994      Verified version 1.1             */
+/*      M.Q. Qian       04-17-1996      updated to version 1.2           */
+/*                                                                       */
+/*************************************************************************/
+
+#include        "cs_defs.h"                 /* Common service constants  */
+#include        "tc_defs.h"                 /* Thread control constants  */
+
+
+/* Check to see if the file has been included already.  */
+
+#ifndef MB_DEFS
+#define MB_DEFS
+
+
+/* Define constants local to this component.  */
+
+#define         MB_MAILBOX_ID           0x4d424f58UL
+#define         MB_MESSAGE_SIZE         4
+
+
+/* Define the Mailbox Control Block data type.  */
+
+typedef struct MB_MCB_STRUCT 
+{
+    CS_NODE             mb_created;            /* Node for linking to    */
+                                               /*   created mailbox list */
+    UNSIGNED            mb_id;                 /* Internal MCB ID        */
+    CHAR                mb_name[NU_MAX_NAME];  /* Mailbox name           */
+    DATA_ELEMENT        mb_message_present;    /* Message present flag   */
+    DATA_ELEMENT        mb_fifo_suspend;       /* Suspension type flag   */
+#if     PAD_2
+    DATA_ELEMENT        mb_padding[PAD_2];
+#endif
+    UNSIGNED            mb_tasks_waiting;      /* Number of waiting tasks*/
+    UNSIGNED                                   /* Message area           */
+                        mb_message_area[MB_MESSAGE_SIZE];
+    struct MB_SUSPEND_STRUCT
+                       *mb_suspension_list;    /* Suspension list        */
+} MB_MCB;    
+
+
+/* Define the mailbox suspension structure.  This structure is allocated off of
+   the caller's stack.  */
+   
+typedef struct MB_SUSPEND_STRUCT
+{
+    CS_NODE             mb_suspend_link;       /* Link to suspend blocks */
+    MB_MCB             *mb_mailbox;            /* Pointer to the mailbox */
+    TC_TCB             *mb_suspended_task;     /* Task suspended         */
+    UNSIGNED           *mb_message_area;       /* Pointer to message area*/
+    STATUS              mb_return_status;      /* Return status          */
+} MB_SUSPEND;
+
+#endif