presto-main/src/main/java/io/prestosql/operator/WorkProcessorUtils.java/WorkProcessorUtils/YieldingProcess
class WorkProcessorUtils:        YieldingProcess(WorkProcessor<T> processor, BooleanSupplier yieldSignal)
        {
            this.processor = requireNonNull(processor, "processor is null");
            this.yieldSignal = requireNonNull(yieldSignal, "yieldSignal is null");
        }