?? tcf.c
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/*************************************************************************/
/* */
/* 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 */
/* */
/* tcf.c Nucleus PLUS 1.14 */
/* */
/* COMPONENT */
/* */
/* TC - Thread Control */
/* */
/* DESCRIPTION */
/* */
/* This file contains information (fact) routines for the Thread */
/* Control component. */
/* */
/* DATA STRUCTURES */
/* */
/* None */
/* */
/* FUNCTIONS */
/* */
/* TCF_Established_Tasks Number of created tasks */
/* TCF_Established_HISRs Number of created HISRs */
/* TCF_Task_Pointers Build list of task pointers */
/* TCF_HISR_Pointers Build list of HISR pointers */
/* TCF_Task_Information Retrieve task information */
/* TCF_HISR_Information Retrieve HISR information */
/* */
/* DEPENDENCIES */
/* */
/* cs_extr.h Common Service functions */
/* tc_extr.h Thread Control functions */
/* in_extr.h Initialization/Interrupt */
/* functions */
/* tm_extr.h Timer Control function */
/* er_extr.h Error handling function */
/* hi_extr.h History functions */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1994 Created initial version 1.1 from */
/* original 1.0g version of TCC.C */
/* */
/* 03-18-1994 Verified version 1.1 */
/* 04-17-1996 updated to version 1.2 */
/* 11-18-1996 Protected Informational service */
/* from NULL Control Block pointers */
/* creating 1.2a. (SPR220) */
/* 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 "cs_extr.h" /* Common service functions */
#include "tc_extr.h" /* Thread control functions */
#include "in_extr.h" /* Initialization/Interrupt */
/* functions */
#include "tm_extr.h" /* Timer control functions */
#include "er_extr.h" /* Error handling function */
#include "hi_extr.h" /* History functions */
/* Define external inner-component global data references. */
extern CS_NODE *TCD_Created_Tasks_List;
extern UNSIGNED TCD_Total_Tasks;
extern TC_TCB *TCD_Priority_List[TC_PRIORITIES];
extern UNSIGNED TCD_Priority_Groups;
extern DATA_ELEMENT TCD_Sub_Priority_Groups[TC_MAX_GROUPS];
extern UNSIGNED_CHAR TCD_Lowest_Set_Bit[];
extern INT TCD_Highest_Priority;
extern TC_TCB *TCD_Execute_Task;
extern VOID *TCD_Current_Thread;
extern UNSIGNED_CHAR TCD_Registered_LISRs[NU_MAX_VECTORS+1];
extern VOID (*TCD_LISR_Pointers[NU_MAX_LISRS+1])(INT vector);
extern INT TCD_Interrupt_Count;
extern INT TCD_Stack_Switched;
extern TC_PROTECT TCD_List_Protect;
extern TC_PROTECT TCD_Schedule_Protect;
extern TC_PROTECT TCD_LISR_Protect;
extern CS_NODE *TCD_Created_HISRs_List;
extern UNSIGNED TCD_Total_HISRs;
extern TC_PROTECT TCD_HISR_Protect;
extern INT TCD_Unhandled_Interrupt;
/* Define external inner-component function calls that are not available to
other components. */
VOID TCT_Build_Task_Stack(TC_TCB *task_ptr);
VOID TCT_Build_HISR_Stack(TC_HCB *hisr_ptr);
VOID TCT_Build_Signal_Frame(TC_TCB *task_ptr);
VOID TCT_Protect_Switch(TC_TCB *task);
VOID TCT_Signal_Exit(VOID);
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* TCF_Established_Tasks */
/* */
/* DESCRIPTION */
/* */
/* This function returns the current number of established tasks. */
/* Tasks previously deleted are no longer considered established. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* [TCT_Check_Stack] Stack checking function */
/* */
/* INPUTS */
/* */
/* None */
/* */
/* OUTPUTS */
/* */
/* TCD_Total_Tasks Number of established tasks */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* */
/*************************************************************************/
UNSIGNED TCF_Established_Tasks(VOID)
{
#ifdef NU_ENABLE_STACK_CHECK
/* Call stack checking function to check for an overflow condition. */
TCT_Check_Stack();
#endif
/* Return the number of established tasks. */
return(TCD_Total_Tasks);
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* TCF_Established_HISRs */
/* */
/* DESCRIPTION */
/* */
/* This function returns the current number of established HISRs. */
/* HISRs previously deleted are no longer considered established. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* [TCT_Check_Stack] Stack checking function */
/* */
/* INPUTS */
/* */
/* None */
/* */
/* OUTPUTS */
/* */
/* TCD_Total_HISRs Number of established HISRs */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* */
/*************************************************************************/
UNSIGNED TCF_Established_HISRs(VOID)
{
#ifdef NU_ENABLE_STACK_CHECK
/* Call stack checking function to check for an overflow condition. */
TCT_Check_Stack();
#endif
/* Return the number of established HISRs. */
return(TCD_Total_HISRs);
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* TCF_Task_Pointers */
/* */
/* DESCRIPTION */
/* */
/* This function builds a list of task pointers, starting at the */
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