inputstream.cpp

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

#include "stdafx.h"
#include "InputStream.h"

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

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

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

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

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

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

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

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


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