message: update pool->getProcess
diff: @@ -442,7 +442,12 @@ static PHP_METHOD(swoole_process_pool, start)
  static PHP_METHOD(swoole_process_pool, getProcess)
  {
  - zval object;
  + static zval object;
  +
  + if (current_pool == NULL)
  + {
  + RETURN_FALSE;
  + }
  if (current_process == NULL)
  {
  