fileinputstream.cpp

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// FileInputStream.cpp: implementation of the FileInputStream class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "MultiBuffer.h"
#include "FileInputStream.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

FileInputStream::FileInputStream(FileDescriptor *f=NULL):fHandle(f)
{
}

FileInputStream::~FileInputStream()
{
	closeStream();
}

void FileInputStream::setFileHandle(FileDescriptor *f)
{
	fHandle = f;
}

FileDescriptor* FileInputStream::getFileHandle()
{
	return fHandle;
}

int FileInputStream::read(void* aBuffer, int aBufLen)
{
	if(fHandle&&fHandle->getStatus()==OPEN)
	{
		return fHandle->read(aBuffer,aBufLen);
	}
	return -1;
}

void FileInputStream::closeStream()
{
	if(fHandle&&fHandle->getStatus()==OPEN)
		fHandle->close();
	fHandle = NULL;
}


int FileInputStream::getLastError()
{
	if(fHandle)
		return fHandle->getLastError();
	return 0;
}