#include "stdafx.h"
#include "Data.h"


namespace BEQ {
	CData::CData()
	{
		m_pBuffer = nullptr;
		m_nBufferSize = 0;
		m_nDataLen = 0;
	}

	CData::CData(int nInitSize)
	{
		m_pBuffer = new char[nInitSize];
		m_nBufferSize = nInitSize;
		m_nDataLen = 0;
	}

	CData::~CData()
	{
		if (m_pBuffer != nullptr) {
			delete[] m_pBuffer;
		}
	}

	void CData::init(int nInitSize)
	{
		m_pBuffer = new char[nInitSize];
		m_nBufferSize = nInitSize;
		m_nDataLen = 0;
	}

	int CData::append(const char* pData, int len)
	{
		if (m_nDataLen + len > m_nBufferSize) {
			return -1;
		}

		memcpy(&m_pBuffer[m_nDataLen], pData, len);
		m_nDataLen += len;
		return (int)m_nDataLen;
	}

	void CData::clear()
	{
		m_nDataLen = 0;
	}
}