private int ReadContentAsBinary(byte[] buffer, int index, int count)
{
Debug.Assert(_decoder != null);
if (_isEnd)
{
Reset();
return(0);
}
_decoder.SetNextOutputBuffer(buffer, index, count);
for (; ;)
{
// use streaming ReadValueChunk if the reader supports it
if (_canReadValueChunk)
{
for (; ;)
{
if (_valueOffset < _valueChunkLength)
{
int decodedCharsCount = _decoder.Decode(_valueChunk, _valueOffset, _valueChunkLength - _valueOffset);
_valueOffset += decodedCharsCount;
}
if (_decoder.IsFull)
{
return(_decoder.DecodedCount);
}
Debug.Assert(_valueOffset == _valueChunkLength);
if ((_valueChunkLength = _reader.ReadValueChunk(_valueChunk, 0, ChunkSize)) == 0)
{
break;
}
_valueOffset = 0;
}
}
else
{
// read what is reader.Value
string value = _reader.Value;
int decodedCharsCount = _decoder.Decode(value, _valueOffset, value.Length - _valueOffset);
_valueOffset += decodedCharsCount;
if (_decoder.IsFull)
{
return(_decoder.DecodedCount);
}
}
_valueOffset = 0;
// move to next textual node in the element content; throw on sub elements
if (!MoveToNextContentNode(true))
{
_isEnd = true;
return(_decoder.DecodedCount);
}
}
}
internal int CopyToBinary(IncrementalReadDecoder decoder, int valueOffset)
{
if (_value == null)
{
Debug.Assert(_valueStartPos != -1);
Debug.Assert(_chars != null);
return(decoder.Decode(_chars, _valueStartPos + valueOffset, _valueLength - valueOffset));
}
else
{
return(decoder.Decode(_value, valueOffset, _value.Length - valueOffset));
}
}