#ifndef __FVSFILE_CPP__#define __FVSFILE_CPP__#include <stdio.h>#include <string.h>#include "fvstypes.h"#include "fvsfile.h"// Default constructor, set file pointer to NULL FvsFile::FvsFile(void){	// Not needed 	fp = NULL;}// Constructor that also opens a fileFvsFile::FvsFile(const String_t name, const uint32_t flags){	fp = NULL;	// call open function, it will take care of the rest	Open(name, flags);}// DestructorFvsFile::~FvsFile(void){	// call close function it will take care of freeing file pointer	Close();}// Open file for reading or writingFvsError_t FvsFile::Open(const String_t name, const uint32_t flags){	char strflags[10];	// make sure file is not already open	Close();	// determine file flags needed	strcpy(strflags,"");	if (flags&FILE_READ && flags&FILE_WRITE) 		strcat(strflags, "rw"); 	else if (flags&FILE_READ)		strcat(strflags, "r");	else if (flags&FILE_WRITE)		strcat(strflags, "w");		// always open as binary file	strcat(strflags,"b");	// should we create file if it does not exist?	if (flags&FILE_CREATE)		strcat(strflags,"+");	// open and set file pointer	fp = fopen(name, strflags);	// make sure that the file opened correctly	if(IsOpen())		return FvsOk;	// the file did not open correctly return failure	return FvsFailure;}// Close function, frees file pointer and allows class to be reusedFvsError_t FvsFile::Close(void){	// make sure file is open before we close it	if (IsOpen())	{		int nerr = fclose(fp);		// set file pointer to NULL		fp = NULL;		// check if there was any problems		if (nerr == 0)			return FvsOk;		else			return FvsFailure;	} 	// File is not open	return FvsFailure;}// Read from fileuint32_t FvsFile::Read(pointer_t data, uint32_t len){	return fread(data, 1, len, fp);}// Write to fileuint32_t FvsFile::Write(pointer_t data, uint32_t len){	return fwrite(data, 1, len, fp);}// Read only one byteuint8_t FvsFile::GetByte(){	return fgetc(fp);}// Read two bytes (1 word)uint16_t FvsFile::GetWord(){	uint16_t w = fgetc(fp);	return (w<<8) + fgetc(fp);}// Checks if file pointer points to somethingbool_t FvsFile::IsOpen(void) const{	return (fp != NULL)?TRUE:FALSE;}// Check if we have reached the end of the filebool_t FvsFile::IsAtEOF(void) const {	// make sure file is open first	if (!IsOpen())		return FALSE;	return (feof(fp) != 0)?TRUE:FALSE;}// Commit change to fileFvsError_t FvsFile::Commit(void){	return (fflush(fp) == 0)?FvsOk:FvsFailure;}// Move to beginning of fileFvsError_t FvsFile::SeekToBegin(void){	// make sure file is open	if (IsOpen())	{		fseek(fp, 0, SEEK_SET);		return FvsOk;	}		// file not open, return failure	return FvsFailure;}// Move to end of fileFvsError_t FvsFile::SeekToEnd(void){	// make sure file is open	if (IsOpen())	{		fseek(fp, 0, SEEK_END);		return FvsOk;	}	// file not open, return failure	return FvsFailure;}// Seek to specific locationFvsError_t FvsFile::Seek(uint32_t newpos){	// make sure file is open	if (IsOpen())	{		fseek(fp, newpos, SEEK_SET);		return FvsOk;	}	// file not open, return failure	return FvsFailure;}// Returns current position in fileuint32_t FvsFile::GetPosition(void) const{	// make sure file is open	if (IsOpen())		return ftell(fp);	// file not open, return 0	return 0;}#endif // __FVSFILE_CPP_