+
−/*************************************************************************/
+
−/*                                                                       */
+
−/*        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