?? ioi.c
字號(hào):
/*************************************************************************/
/* */
/* Copyright Mentor Graphics Corporation 2002 */
/* 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 */
/* */
/* ioi.c Nucleus PLUS 1.14 */
/* */
/* COMPONENT */
/* */
/* IO - Input/Output Driver Management */
/* */
/* DESCRIPTION */
/* */
/* This file contains the initialization routine for the I/O Driver */
/* Management component. */
/* */
/* DATA STRUCTURES */
/* */
/* None */
/* */
/* FUNCTIONS */
/* */
/* IOI_Initialize I/O Driver Initialize */
/* */
/* DEPENDENCIES */
/* */
/* io_defs.h I/O Driver component consts */
/* 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 Updated copyright notice, */
/* changed "void" to VOID, */
/* 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 */
/* 03-26-1999 Released 1.11m (new release */
/* numbering scheme) */
/* 04-17-2002 Released version 1.13m */
/* 11-07-2002 Released version 1.14 */
/*************************************************************************/
#define NU_SOURCE_FILE
#include "io_defs.h" /* I/O driver constants */
#include "io_extr.h" /* I/O driver interfaces */
#include "tc_defs.h" /* Thread control constants */
/* Define external inner-component global data references. */
extern CS_NODE *IOD_Created_Drivers_List;
extern UNSIGNED IOD_Total_Drivers;
extern TC_PROTECT IOD_List_Protect;
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* IOI_Initialize */
/* */
/* DESCRIPTION */
/* */
/* This function initializes the data structures that control the */
/* operation of the I/O driver component (IO). There are no I/O */
/* drivers initially. This routine must be called from Supervisor */
/* mode in Supervisor/User mode switched kernels. */
/* */
/* CALLED BY */
/* */
/* INC_Initialize System initialization */
/* */
/* CALLS */
/* */
/* None */
/* */
/* INPUTS */
/* */
/* None */
/* */
/* OUTPUTS */
/* */
/* IOD_Created_Drivers_List List of created I/O drivers */
/* IOD_Total_Drivers Number of created I/O drivers*/
/* IOD_List_Protect Protection for driver list */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* 03-01-1994 Updated copyright notice, */
/* changed "void" to "VOID", */
/* resulting in version 1.1 */
/* */
/* 03-18-1994 Verified version 1.1 */
/* */
/*************************************************************************/
VOID IOI_Initialize(VOID)
{
/* Initialize the created I/O driver list to NU_NULL. */
IOD_Created_Drivers_List = NU_NULL;
/* Initialize the total number of created I/O drivers to 0. */
IOD_Total_Drivers = 0;
/* Initialize the list protection structure. */
IOD_List_Protect.tc_tcb_pointer = NU_NULL;
}
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