public Task OnDataAsync(Http2Frame dataFrame)
{
// Since padding isn't buffered, immediately count padding bytes as read for flow control purposes.
if (dataFrame.DataHasPadding)
{
// Add 1 byte for the padding length prefix.
OnDataRead(dataFrame.DataPadLength + 1);
}
var payload = dataFrame.DataPayload;
var endStream = dataFrame.DataEndStream;
if (payload.Length > 0)
{
RequestBodyStarted = true;
if (endStream)
{
// No need to send any more window updates for this stream now that we've received all the data.
// Call before flushing the request body pipe, because that might induce a window update.
_inputFlowControl.StopWindowUpdates();
}
_inputFlowControl.Advance(payload.Length);
if (IsAborted)
{
// Ignore data frames for aborted streams, but only after counting them for purposes of connection level flow control.
return(Task.CompletedTask);
}
// This check happens after flow control so that when we throw and abort, the byte count is returned to the connection
// level accounting.
if (InputRemaining.HasValue)
{
// https://tools.ietf.org/html/rfc7540#section-8.1.2.6
if (payload.Length > InputRemaining.Value)
{
throw new Http2StreamErrorException(StreamId, CoreStrings.Http2StreamErrorMoreDataThanLength, Http2ErrorCode.PROTOCOL_ERROR);
}
InputRemaining -= payload.Length;
}
RequestBodyPipe.Writer.Write(payload);
var flushTask = RequestBodyPipe.Writer.FlushAsync();
// It shouldn't be possible for the RequestBodyPipe to fill up an return an incomplete task if
// _inputFlowControl.Advance() didn't throw.
Debug.Assert(flushTask.IsCompleted);
}
if (endStream)
{
OnEndStreamReceived();
}
return(Task.CompletedTask);
}
public Task OnDataAsync(Http2Frame dataFrame)
{
// TODO: content-length accounting
// Since padding isn't buffered, immediately count padding bytes as read for flow control purposes.
if (dataFrame.DataHasPadding)
{
// Add 1 byte for the padding length prefix.
OnDataRead(dataFrame.DataPadLength + 1);
}
var payload = dataFrame.DataPayload;
var endStream = (dataFrame.DataFlags & Http2DataFrameFlags.END_STREAM) == Http2DataFrameFlags.END_STREAM;
if (payload.Count > 0)
{
RequestBodyStarted = true;
if (endStream)
{
// No need to send any more window updates for this stream now that we've received all the data.
// Call before flushing the request body pipe, because that might induce a window update.
_inputFlowControl.StopWindowUpdates();
}
_inputFlowControl.Advance(payload.Count);
RequestBodyPipe.Writer.Write(payload);
var flushTask = RequestBodyPipe.Writer.FlushAsync();
// It shouldn't be possible for the RequestBodyPipe to fill up an return an incomplete task if
// _inputFlowControl.Advance() didn't throw.
Debug.Assert(flushTask.IsCompleted);
}
if (endStream)
{
OnEndStreamReceived();
}
return(Task.CompletedTask);
}