?? mbf.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 */
/* */
/* mbf.c Nucleus PLUS 1.14 */
/* */
/* COMPONENT */
/* */
/* MB - Mailbox Management */
/* */
/* DESCRIPTION */
/* */
/* This file contains routines to obtain facts about the Mailbox */
/* management component. */
/* */
/* DATA STRUCTURES */
/* */
/* None */
/* */
/* FUNCTIONS */
/* */
/* MBF_Established_Mailboxes Number of created mailboxes */
/* MBF_Mailbox_Pointers Build mailbox pointer list */
/* MBF_Mailbox_Information Retrieve mailbox information */
/* */
/* DEPENDENCIES */
/* */
/* cs_extr.h Common Service functions */
/* tc_extr.h Thread Control functions */
/* mb_extr.h Mailbox functions */
/* hi_extr.h History functions */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1994 Initial version of mailbox fact */
/* service file, version 1.1 */
/* */
/* 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 "mb_extr.h" /* Mailbox functions */
#include "hi_extr.h" /* History functions */
/* Define external inner-component global data references. */
extern CS_NODE *MBD_Created_Mailboxes_List;
extern UNSIGNED MBD_Total_Mailboxes;
extern TC_PROTECT MBD_List_Protect;
/* Define internal component function prototypes. */
VOID MBC_Cleanup(VOID *information);
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* MBF_Established_Mailboxes */
/* */
/* DESCRIPTION */
/* */
/* This function returns the current number of established */
/* mailboxes. Mailboxes previously deleted are no longer */
/* considered established. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* [TCT_Check_Stack] Stack checking function */
/* */
/* INPUTS */
/* */
/* None */
/* */
/* OUTPUTS */
/* */
/* MBD_Total_Mailboxes Number of established */
/* mailboxes */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* */
/*************************************************************************/
UNSIGNED MBF_Established_Mailboxes(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 mailboxes. */
return(MBD_Total_Mailboxes);
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* MBF_Mailbox_Pointers */
/* */
/* DESCRIPTION */
/* */
/* This function builds a list of mailbox pointers, starting at the */
/* specified location. The number of mailbox pointers placed in */
/* the list is equivalent to the total number of mailboxes or the */
/* maximum number of pointers specified in the call. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* [TCT_Check_Stack] Stack checking function */
/* TCT_Protect Protect created list */
/* TCT_Unprotect Release protection */
/* */
/* INPUTS */
/* */
/* pointer_list Pointer to the list area */
/* maximum_pointers Maximum number of pointers */
/* */
/* OUTPUTS */
/* */
/* pointers Number of mailboxes placed */
/* in the list */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* 08-09-1993 Corrected pointer retrieval */
/* loop, resulting in version 1.0a */
/* 08-09-1993 Verified version 1.0a */
/* 03-01-1994 Changed function interface to */
/* match the prototype, */
/* resulting in version 1.1 */
/* */
/* 03-18-1994 Verified version 1.1 */
/* */
/*************************************************************************/
UNSIGNED MBF_Mailbox_Pointers(NU_MAILBOX **pointer_list,
UNSIGNED maximum_pointers)
{
CS_NODE *node_ptr; /* Pointer to each MCB */
UNSIGNED pointers; /* Number of pointers in list*/
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