--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/nucleus/mb_extr.h	Fri May 15 01:28:16 2020 +0000
@@ -0,0 +1,124 @@
+/*************************************************************************/
+/*                                                                       */
+/*               Copyright Mentor Graphics Corporation 2002              */
+/*                         All Rights Reserved.                          */
+/*                                                                       */
+/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  */
+/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   */
+/* SUBJECT TO LICENSE TERMS.                                             */
+/*                                                                       */
+/*************************************************************************/
+
+/*************************************************************************/
+/*                                                                       */
+/* FILE NAME                                               VERSION       */
+/*                                                                       */
+/*      mb_extr.h                                      Nucleus PLUS 1.14 */
+/*                                                                       */
+/* COMPONENT                                                             */
+/*                                                                       */
+/*      MB - Mailbox Management                                          */
+/*                                                                       */
+/* DESCRIPTION                                                           */
+/*                                                                       */
+/*      This file contains function prototypes of all functions          */
+/*      accessible to other components.                                  */
+/*                                                                       */
+/* DATA STRUCTURES                                                       */
+/*                                                                       */
+/*      None                                                             */
+/*                                                                       */
+/* FUNCTIONS                                                             */
+/*                                                                       */
+/*      None                                                             */
+/*                                                                       */
+/* DEPENDENCIES                                                          */
+/*                                                                       */
+/*      mb_defs.h                           Mailbox Management constants */
+/*                                                                       */
+/* HISTORY                                                               */
+/*                                                                       */
+/*        DATE                    REMARKS                                */
+/*                                                                       */
+/*      03-01-1993      Created initial version 1.0                      */
+/*      04-19-1993      Verified version 1.0                             */
+/*      03-01-1994      Moved include files outside of                   */
+/*                      the file #ifndef to allow the                    */
+/*                      use of actual data structures,                   */
+/*                      changed the names of several                     */
+/*                      mailboxes services to reflect                    */
+/*                      the new file structure,                          */
+/*                      modified function interface to                   */
+/*                      exactly match the prototype,                     */
+/*                      resulting in version 1.1                         */
+/*                                                                       */
+/*      03-18-1994      Verified version 1.1                             */
+/*      04-17-1996      updated to version 1.2                           */
+/*      03-24-1998      Released version 1.3                             */
+/*      03-26-1999      Released 1.11m (new release                      */
+/*                        numbering scheme)                              */
+/*      04-17-2002      Released version 1.13m                           */
+/*      11-07-2002      Released version 1.14                            */
+/*************************************************************************/
+
+#include        "mb_defs.h"                 /* Include MB constants      */
+
+
+/* Check to see if the file has been included already.  */
+
+#ifndef MB_EXTR
+#define MB_EXTR
+
+
+/*  Initialization functions.  */
+
+VOID            MBI_Initialize(VOID);
+
+
+/* Core error checking functions.  */
+
+STATUS          MBCE_Create_Mailbox(NU_MAILBOX *mailbox_ptr, CHAR *name, 
+                                                OPTION suspend_type);
+STATUS          MBCE_Delete_Mailbox(NU_MAILBOX *mailbox_ptr);
+STATUS          MBCE_Send_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, 
+                                                        UNSIGNED suspend);
+STATUS          MBCE_Receive_From_Mailbox(NU_MAILBOX *mailbox_ptr, 
+                                        VOID *message, UNSIGNED suspend);
+
+/* Supplemental error checking functions.  */
+
+STATUS          MBSE_Reset_Mailbox(NU_MAILBOX *mailbox_ptr);
+STATUS          MBSE_Broadcast_To_Mailbox(NU_MAILBOX *mailbox_ptr, 
+                                        VOID *message, UNSIGNED suspend);
+
+/* Core processing functions.  */
+
+STATUS          MBC_Create_Mailbox(NU_MAILBOX *mailbox_ptr, CHAR *name, 
+                                                OPTION suspend_type);
+STATUS          MBC_Delete_Mailbox(NU_MAILBOX *mailbox_ptr);
+STATUS          MBC_Send_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, 
+                                                        UNSIGNED suspend);
+STATUS          MBC_Receive_From_Mailbox(NU_MAILBOX *mailbox_ptr, 
+                                        VOID *message, UNSIGNED suspend);
+
+/* Supplemental mailbox functions.  */
+
+STATUS          MBS_Reset_Mailbox(NU_MAILBOX *mailbox_ptr);
+STATUS          MBS_Broadcast_To_Mailbox(NU_MAILBOX *mailbox_ptr, 
+                                        VOID *message, UNSIGNED suspend);
+
+/* Mailbox fact retrieval functions.  */
+
+UNSIGNED        MBF_Established_Mailboxes(VOID);
+STATUS          MBF_Mailbox_Information(NU_MAILBOX *mailbox_ptr, CHAR *name, 
+                  OPTION *suspend_type, DATA_ELEMENT *message_present,
+                  UNSIGNED *tasks_waiting, NU_TASK **first_task);
+UNSIGNED        MBF_Mailbox_Pointers(NU_MAILBOX **pointer_list, 
+                                                UNSIGNED maximum_pointers);
+
+#endif
+
+
+
+
+