internal override async ValueTask SendAsync(
long streamId,
OutgoingFrame frame,
bool fin,
CancellationToken cancel)
{
var data = new List <ArraySegment <byte> >();
var ostr = new OutputStream(Encoding, data);
FrameType frameType = fin ? FrameType.StreamLast : FrameType.Stream;
ostr.WriteByte((byte)frameType);
OutputStream.Position sizePos = ostr.StartFixedLengthSize(4);
ostr.WriteVarLong(streamId);
OutputStream.Position ice2HeaderPos = ostr.Tail;
if (frame is OutgoingRequestFrame requestFrame)
{
ostr.WriteByte((byte)Ice2Definitions.FrameType.Request);
}
else if (frame is OutgoingResponseFrame responseFrame)
{
ostr.WriteByte((byte)Ice2Definitions.FrameType.Response);
}
else
{
Debug.Assert(false);
return;
}
ostr.WriteSize(frame.Size);
int ice2HeaderSize = ostr.Tail.Offset - ice2HeaderPos.Offset;
data[^ 1] = data[^ 1].Slice(0, ostr.Tail.Offset); // TODO: Shouldn't this be the job of ostr.Finish()?
private protected void WriteBinaryContext(OutputStream ostr)
{
Debug.Assert(Protocol == Protocol.Ice2);
Debug.Assert(ostr.Encoding == Encoding.V20);
int sizeLength =
OutputStream.GetSizeLength20(InitialBinaryContext.Count + (_binaryContextOverride?.Count ?? 0));
int size = 0;
OutputStream.Position start = ostr.StartFixedLengthSize(sizeLength);
// First write the overrides, then the InitialBinaryContext entries that were not overridden.
if (_binaryContextOverride is Dictionary <int, Action <OutputStream> > binaryContextOverride)
{
foreach ((int key, Action <OutputStream> action) in binaryContextOverride)
{
ostr.WriteVarInt(key);
OutputStream.Position startValue = ostr.StartFixedLengthSize(2);
action(ostr);
ostr.EndFixedLengthSize(startValue, 2);
size++;
}
}
foreach ((int key, ReadOnlyMemory <byte> value) in InitialBinaryContext)
{
if (_binaryContextOverride == null || !_binaryContextOverride.ContainsKey(key))
{
ostr.WriteVarInt(key);
ostr.WriteSize(value.Length);
ostr.WriteByteSpan(value.Span);
size++;
}
}
ostr.RewriteFixedLengthSize20(size, start, sizeLength);
}