memDrvX.c File Reference

Basically the memDrv.c file provided by VxWorks, but protected. More...

#include <copyright_wrs.h>
#include <vxWorks.h>
#include <ioLib.h>
#include <iosLib.h>
#include <stat.h>
#include <dirent.h>
#include <memLib.h>
#include <errnoLib.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <memDrv.h>

Classes
struct	MEM_DEV
struct	MEM_FILE_DESC
Functions
LOCAL MEM_DRV_DIRENTRY *	memFindFile ()
LOCAL MEM_FILE_DESC *	memOpen ()
LOCAL STATUS	memFileStatGet ()
LOCAL int	memRead ()
LOCAL int	memWrite ()
LOCAL int	memClose ()
LOCAL STATUS	memIoctl ()
STATUS	memDrv (void)
STATUS	memDevCreate (char *name, char *base, int length)
STATUS	memDevCreateDir (char *name, MEM_DRV_DIRENTRY *files, int numFiles)
STATUS	memDevDelete (char *name)
LOCAL MEM_DRV_DIRENTRY *	memFindFile (MEM_DEV *pMemDv, char *name, MEM_DRV_DIRENTRY *pDir, int *pOffset)
LOCAL MEM_FILE_DESC *	memOpen (MEM_DEV *pMemDv, char *name, int mode)
LOCAL STATUS	memFileStatGet (MEM_FILE_DESC *pfd, struct stat *pStat)
LOCAL int	memRead (MEM_FILE_DESC *pfd, char *buffer, int maxbytes)
LOCAL int	memWrite (MEM_FILE_DESC *pfd, char *buffer, int nbytes)
LOCAL STATUS	memIoctl (FAST MEM_FILE_DESC *pfd, FAST int function, int arg)
LOCAL STATUS	memClose (MEM_FILE_DESC *pfd)
Variables
LOCAL int	memDrvNum

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Detailed Description

Basically the memDrv.c file provided by VxWorks, but protected.

CVS $Id: memDrvX.c,v 1.2 2011/03/24 19:55:11 apw Exp $

Author:

A.P.Waite

memDrvX.c is a bug fix to the VxWorks file memDrv.c. The VxWorks original resulted in a value being written to address zero when memDevDelete() called iodDevFind() (by virtue of passing a NULL as the second argument). This version provides a dummy location into which iosDevFind() can write this value (the value is never actually used, or passed back, by memDevDelete()).