Package io.trino.operator

Class DriverYieldSignal

java.lang.Object

io.trino.operator.DriverYieldSignal

@ThreadSafe
public class DriverYieldSignal
extends Object

Methods setWithDelay and reset should be used in pairs; usually follow the following idiom:

 
 DriverYieldSignal signal = ...;
 signal.setWithDelay(duration, executor);
 try {
     // block
 } finally {
     signal.reset();
 }
 

Constructor Summary

Constructors

Constructor	Description
DriverYieldSignal()

Method Summary

Modifier and Type	Method	Description
void	forceYieldForTesting()
boolean	isSet()
void	reset()
void	resetYieldForTesting()
void	setWithDelay(long maxRunNanos, ScheduledExecutorService executor)
String	toString()
void	yieldImmediatelyForTermination()	Signals an immediate yield to the driver to improve responsiveness to termination commands that may arrive while drivers are still running.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

DriverYieldSignal

public DriverYieldSignal()

Method Details

setWithDelay

public void setWithDelay(long maxRunNanos,
 ScheduledExecutorService executor)

reset

public void reset()

isSet

public boolean isSet()

yieldImmediatelyForTermination

public void yieldImmediatelyForTermination()

Signals an immediate yield to the driver to improve responsiveness to termination commands that may arrive while drivers are still running. After calling this method, the driver should not attempt to start another interval of running and attempting to call setWithDelay(long, ScheduledExecutorService) will fail.

toString

public String toString()

Overrides:

toString in class Object

forceYieldForTesting

public void forceYieldForTesting()

resetYieldForTesting

public void resetYieldForTesting()