📄 mb_defs.h
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/*************************************************************************/
/* */
/* Copyright Mentor Graphics Corporation 2004 */
/* 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_defs.h Nucleus PLUS 1.15 */
/* */
/* COMPONENT */
/* */
/* MB - Mailbox Management */
/* */
/* DESCRIPTION */
/* */
/* This file contains data structure definitions and constants for */
/* the message Mailbox component. */
/* */
/* DATA STRUCTURES */
/* */
/* MB_MCB Mailbox control block */
/* MB_SUSPEND Mailbox suspension block */
/* */
/* DEPENDENCIES */
/* */
/* cs_defs.h Common service definitions */
/* tc_defs.h Thread Control definitions */
/* */
/*************************************************************************/
#include "plus/inc/cs_defs.h" /* Common service constants */
#include "plus/inc/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 */
BOOLEAN mb_message_present; /* Message present flag */
BOOLEAN 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
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