class Protocol::HTTP2::Client

def create_push_promise_stream
	raise ProtocolError, "Cannot create push promises from client!"
end

def initialize(framer)
	super(framer, 1)
end

def local_stream_id?(id)
	id.odd?
end

def receive_push_promise(frame)
	if frame.stream_id == 0
		raise ProtocolError, "Cannot receive headers for stream 0!"
	end
	
	if stream = @streams[frame.stream_id]
		# This is almost certainly invalid:
		promised_stream, request_headers = stream.receive_push_promise(frame)
		
		return promised_stream, request_headers
	end
end

def remote_stream_id?(id)
	id.even?
end

def send_connection_preface(settings = [])
	if @state == :new
		@framer.write_connection_preface
		
		send_settings(settings)
		
		yield if block_given?
		
		read_frame do |frame|
			raise ProtocolError, "First frame must be #{SettingsFrame}, but got #{frame.class}" unless frame.is_a? SettingsFrame
		end
	else
		raise ProtocolError, "Cannot send connection preface in state #{@state}"
	end
end

def valid_remote_stream_id?(stream_id)
	stream_id.even?
end