pii.c

nucleus 2006 source code

/*************************************************************************/
/*                                                                       */
/*               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       */
/*                                                                       */
/*      pii.c                                          Nucleus PLUS 1.15 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      PI - Pipe Management                                             */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the initialization routine for the pipe       */
/*      management component.                                            */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      PII_Initialize                      Pipe Management Initialize   */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      pi_defs.h                           Pipe component constants     */
/*                                                                       */
/*************************************************************************/
#define         NU_SOURCE_FILE


#include        "plus/inc/pi_defs.h"        /* Pipe constants            */
#include        "plus/inc/pi_extr.h"        /* Pipe interfaces           */


/* Define external inner-component global data references.  */

extern CS_NODE         *PID_Created_Pipes_List;
extern UNSIGNED         PID_Total_Pipes;
extern TC_PROTECT       PID_List_Protect;


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      PII_Initialize                                                   */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function initializes the data structures that control the   */
/*      operation of the Pipe component (PI).  There are no pipes        */
/*      initially.                                                       */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      INC_Initialize                      System initialization        */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      PID_Created_Pipes_List              List of created pipes        */
/*      PID_Total_Pipes                     Number of created pipes      */
/*      PID_List_Protect                    Protection for pipe list     */
/*                                                                       */
/*************************************************************************/
VOID  PII_Initialize(VOID)
{

    /* Initialize the created pipe list to NU_NULL.  */
    PID_Created_Pipes_List =  NU_NULL;

    /* Initialize the total number of created pipes to 0.  */
    PID_Total_Pipes =  0;

    /* Initialize the list protection structure.  */
    PID_List_Protect.tc_tcb_pointer =      NU_NULL;
}