Method: Protocol::HTTP2::Connection#read_frame

Defined in:
lib/protocol/http2/connection.rb

#read_frame ⇒ Object

Reads one frame from the network and processes. Processing the frame updates the state of the connection and related streams. If the frame triggers an error, e.g. a protocol error, the connection will typically emit a goaway frame and re-raise the exception. You should continue processing frames until the underlying connection is closed.



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# File 'lib/protocol/http2/connection.rb', line 167

def read_frame
  frame = @framer.read_frame(@local_settings.maximum_frame_size)
  # puts "#{self.class} #{@state} read_frame: class=#{frame.class} stream_id=#{frame.stream_id} flags=#{frame.flags} length=#{frame.length} (remote_stream_id=#{@remote_stream_id})"
  # puts "Windows: local_window=#{@local_window.inspect}; remote_window=#{@remote_window.inspect}"
  
  return if ignore_frame?(frame)
  
  yield frame if block_given?
  frame.apply(self)
  
  return frame
rescue GoawayError => error
  # Go directly to jail. Do not pass go, do not collect $200.
  raise
rescue ProtocolError => error
  send_goaway(error.code || PROTOCOL_ERROR, error.message)
  
  raise
rescue HPACK::Error => error
  send_goaway(COMPRESSION_ERROR, error.message)
  
  raise
end