qud.c

nuclues 内核源代码已经在arm7-9 上作了移植

/*************************************************************************/
/*                                                                       */
/*        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          */
/*                                                                       */
/*      qud.c                                           PLUS  1.13       */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      QU - Queue Management                                            */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains global data structures for use within the     */
/*      queue management component.                                      */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Accelerated Technology, Inc.                                     */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      QUD_Created_Queue_List              Pointer to the linked-list   */
/*                                            of created queues          */
/*      QUD_Total_Queues                    Total number of created      */
/*                                            queues                     */
/*      QUD_List_Protect                    Queue list protection        */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      qu_defs.h                           Queue Management constants   */
/*      tc_defs.h                           Thread Control constants     */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Modified copyright, 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                             */
/*                                                                       */
/*************************************************************************/
#define         NU_SOURCE_FILE

#include        "qu_defs.h"                 /* Queue constants           */


/* QUD_Created_Queues_List is the head pointer of the linked list of 
   created queues.  If the list is NU_NULL, there are no queues
   created.  */
   
CS_NODE        *QUD_Created_Queues_List;


/* QUD_Total_Queues contains the number of currently created 
   queues.  */

UNSIGNED        QUD_Total_Queues;


/* QUD_List_Protect is a list protection structure used to block any other
   thread from access to the created queue list.  */
   
TC_PROTECT      QUD_List_Protect;