www.pudn.com > os.rar > qu_defs.h
/*************************************************************************/
/* */
/* 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 */
/* */
/* qu_defs.h Nucleus PLUS 1.15 */
/* */
/* COMPONENT */
/* */
/* QU - Queue Management */
/* */
/* DESCRIPTION */
/* */
/* This file contains data structure definitions and constants for */
/* the message Queue component. */
/* */
/* DATA STRUCTURES */
/* */
/* QU_QCB Queue control block */
/* QU_SUSPEND Queue 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 QU_DEFS
#define QU_DEFS
/* Define constants local to this component. */
#define QU_QUEUE_ID 0x51554555UL
/* Define the Queue Control Block data type. */
typedef struct QU_QCB_STRUCT
{
CS_NODE qu_created; /* Node for linking to */
/* created queue list */
UNSIGNED qu_id; /* Internal QCB ID */
CHAR qu_name[NU_MAX_NAME]; /* Queue name */
BOOLEAN qu_fixed_size; /* Fixed-size messages? */
BOOLEAN qu_fifo_suspend; /* Suspension type flag */
#if PAD_2
DATA_ELEMENT qu_padding[PAD_2];
#endif
UNSIGNED qu_queue_size; /* Total size of queue */
UNSIGNED qu_messages; /* Messages in queue */
UNSIGNED qu_message_size; /* Size of each message */
UNSIGNED qu_available; /* Available words */
UNSIGNED_PTR qu_start; /* Start of queue area */
UNSIGNED_PTR qu_end; /* End of queue area + 1 */
UNSIGNED_PTR qu_read; /* Read pointer */
UNSIGNED_PTR qu_write; /* Write pointer */
UNSIGNED qu_tasks_waiting; /* Number of waiting tasks*/
struct QU_SUSPEND_STRUCT
*qu_urgent_list; /* Urgent message suspend */
struct QU_SUSPEND_STRUCT
*qu_suspension_list; /* Suspension list */
} QU_QCB;
/* Define the queue suspension structure. This structure is allocated off of
the caller's stack. */
typedef struct QU_SUSPEND_STRUCT
{
CS_NODE qu_suspend_link; /* Link to suspend blocks */
QU_QCB *qu_queue; /* Pointer to the queue */
TC_TCB *qu_suspended_task; /* Task suspended */
UNSIGNED_PTR qu_message_area; /* Pointer to message area*/
UNSIGNED qu_message_size; /* Message size requested */
UNSIGNED qu_actual_size; /* Actual size of message */
STATUS qu_return_status; /* Return status */
} QU_SUSPEND;
#endif