public static PooledBuffer HeaderAsBinary(HTTP2FrameHeaderAndPayload header)
{
// https://httpwg.org/specs/rfc7540.html#FrameHeader
var buffer = BufferPool.Get(9, true);
BufferHelper.SetUInt24(buffer, 0, header.PayloadLength);
buffer[3] = (byte)header.Type;
buffer[4] = header.Flags;
BufferHelper.SetUInt31(buffer, 5, header.StreamId);
return(new PooledBuffer {
Data = buffer, Length = 9
});
}
public static HTTP2FrameHeaderAndPayload CreateGoAwayFrame(UInt32 lastStreamId, HTTP2ErrorCodes error)
{
// https://httpwg.org/specs/rfc7540.html#GOAWAY
HTTP2FrameHeaderAndPayload frame = new HTTP2FrameHeaderAndPayload();
frame.Type = HTTP2FrameTypes.GOAWAY;
frame.Flags = 0;
frame.StreamId = 0;
frame.Payload = BufferPool.Get(8, true);
frame.PayloadLength = 8;
BufferHelper.SetUInt31(frame.Payload, 0, lastStreamId);
BufferHelper.SetUInt31(frame.Payload, 4, (UInt32)error);
return(frame);
}
public static HTTP2FrameHeaderAndPayload CreateWindowUpdateFrame(UInt32 streamId, UInt32 windowSizeIncrement)
{
// https://httpwg.org/specs/rfc7540.html#WINDOW_UPDATE
HTTP2FrameHeaderAndPayload frame = new HTTP2FrameHeaderAndPayload();
frame.Type = HTTP2FrameTypes.WINDOW_UPDATE;
frame.Flags = 0;
frame.StreamId = streamId;
frame.Payload = BufferPool.Get(4, true);
frame.PayloadLength = 4;
BufferHelper.SetBit(0, 0, 0);
BufferHelper.SetUInt31(frame.Payload, 0, windowSizeIncrement);
return(frame);
}
