Package io.prestosql.execution.executor

Class TaskHandle

java.lang.Object

io.prestosql.execution.executor.TaskHandle

@ThreadSafe
public class TaskHandle
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected SplitConcurrencyController	concurrencyController
protected AtomicReference<Priority>	priority
protected Queue<PrioritizedSplitRunner>	queuedLeafSplits
protected List<PrioritizedSplitRunner>	runningIntermediateSplits
protected List<PrioritizedSplitRunner>	runningLeafSplits
protected long	scheduledNanos
protected DoubleSupplier	utilizationSupplier

Constructor Summary

Constructors

Constructor	Description
TaskHandle(TaskId taskId, MultilevelSplitQueue splitQueue, DoubleSupplier utilizationSupplier, int initialSplitConcurrency, io.airlift.units.Duration splitConcurrencyAdjustFrequency, OptionalInt maxDriversPerTask)

Method Summary

Modifier and Type	Method	Description
Priority	addScheduledNanos(long durationNanos)
List<PrioritizedSplitRunner>	destroy()
void	enqueueSplit(PrioritizedSplitRunner split)
OptionalInt	getMaxDriversPerTask()
int	getNextSplitId()
Priority	getPriority()
long	getScheduledNanos()
TaskId	getTaskId()
boolean	isDestroyed()
PrioritizedSplitRunner	pollNextSplit()
void	recordIntermediateSplit(PrioritizedSplitRunner split)
Priority	resetLevelPriority()
void	splitComplete(PrioritizedSplitRunner split)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

utilizationSupplier

protected final DoubleSupplier utilizationSupplier

queuedLeafSplits

protected final Queue<PrioritizedSplitRunner> queuedLeafSplits

runningLeafSplits

protected final List<PrioritizedSplitRunner> runningLeafSplits

runningIntermediateSplits

protected final List<PrioritizedSplitRunner> runningIntermediateSplits

scheduledNanos

protected long scheduledNanos

concurrencyController

protected final SplitConcurrencyController concurrencyController

priority

protected final AtomicReference<Priority> priority

Constructor Detail

TaskHandle

public TaskHandle(TaskId taskId,
                  MultilevelSplitQueue splitQueue,
                  DoubleSupplier utilizationSupplier,
                  int initialSplitConcurrency,
                  io.airlift.units.Duration splitConcurrencyAdjustFrequency,
                  OptionalInt maxDriversPerTask)

Method Detail

addScheduledNanos

public Priority addScheduledNanos(long durationNanos)

resetLevelPriority

public Priority resetLevelPriority()

isDestroyed

public boolean isDestroyed()

getPriority

public Priority getPriority()

getTaskId

public TaskId getTaskId()

getMaxDriversPerTask

public OptionalInt getMaxDriversPerTask()

destroy

public List<PrioritizedSplitRunner> destroy()

enqueueSplit

public void enqueueSplit(PrioritizedSplitRunner split)

recordIntermediateSplit

public void recordIntermediateSplit(PrioritizedSplitRunner split)

getScheduledNanos

public long getScheduledNanos()

pollNextSplit

public PrioritizedSplitRunner pollNextSplit()

splitComplete

public void splitComplete(PrioritizedSplitRunner split)

getNextSplitId

public int getNextSplitId()

toString

public String toString()

Overrides:

toString in class Object