mb_defs.h
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/*************************************************************************/
/* */
/* Copyright (c) 1993-2001 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 1.13 */
/* */
/* COMPONENT */
/* */
/* MB - Mailbox Management */
/* */
/* DESCRIPTION */
/* */
/* This file contains data structure definitions and constants for */
/* the message Mailbox component. */
/* */
/* AUTHOR */
/* */
/* 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 */
/* */
/* 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, */
/* removed protection structure */
/* inside of each mailbox, added */
/* padding logic, 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 */
/* */
/*************************************************************************/
#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