class Excon::Socket

def write_block(data)
  @socket.write(data)
rescue OpenSSL::SSL::SSLError, Errno::EAGAIN, Errno::EWOULDBLOCK, IO::WaitWritable => error
  if error.is_a?(OpenSSL::SSL::SSLError) && error.message != 'write would block'
    raise error
  else
    select_with_timeout(@socket, :write) && retry
  end
end