Class: Puma::MiniSSL::Socket

# File 'lib/capybara/registrations/patches/puma_ssl.rb', line 6

def read_nonblock(size, *_)
  wait_states = %i[wait_readable wait_writable]

  loop do
    output = engine_read_all
    return output if output

    data = @socket.read_nonblock(size, exception: false)
    raise IO::EAGAINWaitReadable if wait_states.include? data
    return nil if data.nil?

    @engine.inject(data)
    output = engine_read_all

    return output if output

    while (neg_data = @engine.extract)
      @socket.write neg_data
    end
  end
end