#include "StdAfx.h"
#include "TStaticBuffer.h"

TStaticBuffer::TStaticBuffer(char *pBuf, int nSize)
	: m_pBuf(pBuf), m_nSize(nSize)
{
	m_nPos = 0;
}

TStaticBuffer::~TStaticBuffer() 
{
	if (m_pBuf) 
	{
		delete m_pBuf;
	}
}

int TStaticBuffer::IsEOF() 
{
	return (m_nPos >= m_nSize);
}

int TStaticBuffer::operator !() 
{
	return (!m_pBuf || IsEOF());
}

int TStaticBuffer::Read(void *pDest, int nCount) 
{
	if (m_nPos + nCount > m_nSize)
	{
		return 0;
	}

	memcpy(pDest, &m_pBuf[m_nPos], nCount);
	m_nPos += nCount;

	return 1;
}