Method getDataWait

lib/cpp/test/processor/Handlers.h:59–66

  }

  void getDataWait(std::string& _return, const int32_t length) override {
    concurrency::Guard g(mutex_);
    log_->append(EventLog::ET_CALL_GET_DATA_WAIT, 0, 0);

    blockUntilTriggered();

    _return.append(length, 'a');
  }

  void onewayWait() override {
    concurrency::Guard g(mutex_);