stuffer.ru

PAYLOAD_SIZE = 15 * 1024 * 1024
CHUNK_SIZE = 65 * 1024 # Roughly one socket buffer
class StufferBody
  def each
    rng = Random.new(123)
    whole_chunks, rem = PAYLOAD_SIZE.divmod(CHUNK_SIZE)
    whole_chunks.times do
      yield(rng.bytes(CHUNK_SIZE))
    end
    yield(rng.bytes(rem)) if rem > 0
  end
end

stuffer = ->(_env) {
  [200, {'Content-Length' => PAYLOAD_SIZE.to_s}, StufferBody.new]
}
run stuffer