Module: Quicsilver::Protocol::FrameReader

Defined in:
lib/quicsilver/protocol/frame_reader.rb

Overview

Extracts HTTP/3 frames from a byte buffer. Yields [type, payload] pairs. No protocol semantics — just byte-level extraction.

Usage:

FrameReader.each(buffer) do |type, payload|
  case type
  when FRAME_HEADERS then ...
  when FRAME_DATA then ...
  end
end

Class Method Summary collapse

Class Method Details

.each(buffer) ⇒ Object 



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# File 'lib/quicsilver/protocol/frame_reader.rb', line 16

def self.each(buffer)
  offset = 0
  buf_size = buffer.bytesize

  while offset < buf_size
    break if buf_size - offset < 2

    # Inline single-byte varint fast path (covers frame types 0x00-0x3F)
    type_byte = buffer.getbyte(offset)
    if type_byte < 0x40
      type = type_byte
      type_len = 1
    else
      type, type_len = Protocol.decode_varint_str(buffer, offset)
      break if type_len == 0
    end

    len_byte = buffer.getbyte(offset + type_len)
    if len_byte < 0x40
      length = len_byte
      length_len = 1
    else
      length, length_len = Protocol.decode_varint_str(buffer, offset + type_len)
      break if length_len == 0
    end

    header_len = type_len + length_len
    break if buf_size < offset + header_len + length

    payload = buffer.byteslice(offset + header_len, length)
    offset += header_len + length

    yield type, payload
  end

  offset
end