private void CloseFrame()
{
if (_encoder == null)
return;
try
{
EncoderAction action = _encoder.FlushAndEncode(_buffer, 0, _buffer.Length, true, out int encoded);
WriteBlock(encoded, action);
Write32(0);
Flush16();
if (_descriptor.ContentChecksum)
throw new NotImplementedException(string.Format(RS.FeatureNotImplementedInType, "Content Checksum", GetType().Name));
_buffer = null;
_encoder.Dispose();
}
finally
{
_encoder = null;
}
}
public BlockInfo(byte[] buffer, EncoderAction action, int length)
{
_buffer = buffer;
_length = action switch {
EncoderAction.Encoded => length,
EncoderAction.Copied => - length,
_ => 0,
};
}
private void WriteBlock(int length, EncoderAction action)
{
switch (action)
{
case EncoderAction.Copied:
WriteBlock(length, false);
break;
case EncoderAction.Encoded:
WriteBlock(length, true);
break;
}
}
private ValueTask WriteBlockAsync(int length, EncoderAction action, CancellationToken cancellationToken)
{
switch (action)
{
case EncoderAction.Copied:
return(WriteBlockAsync(length, false, cancellationToken));
case EncoderAction.Encoded:
return(WriteBlockAsync(length, true, cancellationToken));
}
return(new ValueTask());
}
/// <see cref="Stream.Write(byte[], int, int)"/>
public override void Write(byte[] buffer, int offset, int count)
{
if (_encoder == null)
WriteFrame();
while (count > 0)
{
EncoderAction action = _encoder.TopupAndEncode(
buffer, offset, count,
_buffer, 0, _buffer.Length,
false, true,
out int loaded,
out int encoded);
WriteBlock(encoded, action);
offset += loaded;
count -= loaded;
}
}