/// <summary>
/// Escreve o buffer no item.
/// </summary>
/// <param name="vBuffer">buffer com os dados que serão inseridos.</param>
/// <param name="srcOffset">Offset da origem dom buffer.</param>
/// <param name="dstOffset">Offset de destino.</param>
/// <param name="length">Quantidade de dados que serão escritors</param>
public void Write(VirtualArray vBuffer, int srcOffset, int dstOffset, int length)
{
if (vBuffer != null)
{
VirtualArray dst = new VirtualArray(_data);
VirtualArray.CopyData(vBuffer, new VirtualIndex(srcOffset), dst, new VirtualIndex(dstOffset), length, true);
_noOfChunks = _data.Count;
}
}
public override void Write(VirtualArray vBuffer, int srcOffset, int dstOffset, int length)
{
if (vBuffer == null)
{
return;
}
{
VirtualArray vDstArray = new VirtualArray(_data);
VirtualArray.CopyData(vBuffer, new VirtualIndex(srcOffset), vDstArray, new VirtualIndex(dstOffset), length, true);
_noOfChunks = _data.Count;
}
}
public override void Write(VirtualArray vBuffer, int srcOffset, int dstOffset, int length)
{
if (vBuffer == null)
{
return;
}
VirtualArray vDstArray = new VirtualArray(_data);
VirtualArray.CopyData(vBuffer, new VirtualIndex(srcOffset), vDstArray, new VirtualIndex(dstOffset), length, true);
_noOfChunks = _data.Count;
//_lastChunkSize = ((byte[])_data[_data.Count - 1]).Length;
_lastChunkSize += (length < 0 ? 0 : length) % LARGE_OBJECT_SIZE;
}
/// <summary>
/// Lê os dados da instancia.
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <returns></returns>
public VirtualArray Read(int offset, int length)
{
VirtualArray dst = null;
int num = this.Length;
if (offset >= num)
{
return(new VirtualArray(0));
}
if ((offset + length) > num)
{
length -= (offset + length) - num;
}
VirtualArray src = new VirtualArray(_data);
dst = new VirtualArray((long)length);
VirtualIndex srcIndex = new VirtualIndex(offset);
VirtualIndex dstIndex = new VirtualIndex();
VirtualArray.CopyData(src, srcIndex, dst, dstIndex, length);
return(dst);
}
public override VirtualArray Read(int offset, int length)
{
VirtualArray vBuffer = null;
int streamLength = Length;
if (offset >= streamLength)
{
return(new VirtualArray(0));
}
if (offset + length > streamLength)
{
length -= (offset + length - streamLength);
}
VirtualArray vSrc = new VirtualArray(_data);
vBuffer = new VirtualArray(length);
VirtualIndex vSrcIndex = new VirtualIndex(offset);
VirtualIndex vDstIndex = new VirtualIndex();
VirtualArray.CopyData(vSrc, vSrcIndex, vBuffer, vDstIndex, length);
return(vBuffer);
}