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#include "DataBuffer.h"
#include "StdLib.h"
#define SANITIZE_DATABUFFER
DataBuffer::DataBuffer(size_t length)
: m_length(length)
, m_owned(true)
{
m_data = new BYTE[m_length];
#ifdef SANITIZE_DATABUFFER
memset(m_data, 0x1a, length);
#endif
}
DataBuffer::DataBuffer(BYTE* data, size_t length, ConstructionMode mode)
: m_length(length)
{
switch (mode) {
case Copy:
m_data = new BYTE[m_length];
memcpy(m_data, data, m_length);
m_owned = true;
break;
case Adopt:
m_data = data;
m_owned = true;
break;
case Wrap:
m_data = data;
m_owned = false;
break;
}
}
DataBuffer::~DataBuffer()
{
clear();
#ifdef SANITIZE_DATABUFFER
m_data = (BYTE*)0x88888888;
#endif
}
void DataBuffer::clear()
{
if (m_owned) {
#ifdef SANITIZE_DATABUFFER
memset(m_data, 0x99, m_length);
#endif
delete [] m_data;
}
m_owned = false;
m_data = nullptr;
m_length = 0;
}
RefPtr<DataBuffer> DataBuffer::createUninitialized(size_t length)
{
return adoptRef(new DataBuffer(length));
}
RefPtr<DataBuffer> DataBuffer::copy(const BYTE* data, size_t length)
{
return adoptRef(new DataBuffer(const_cast<BYTE*>(data), length, Copy));
}
RefPtr<DataBuffer> DataBuffer::wrap(BYTE* data, size_t length)
{
return adoptRef(new DataBuffer(data, length, Wrap));
}
RefPtr<DataBuffer> DataBuffer::adopt(BYTE* data, size_t length)
{
return adoptRef(new DataBuffer(data, length, Adopt));
}
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