org.neo4j.io.pagecache.tracing

Interface PageFaultEvent

public interface PageFaultEvent

Begin a page fault as part of a pin event.

Field Summary

Fields

Modifier and Type	Field and Description
static PageFaultEvent	NULL A PageFaultEvent that does nothing.

Method Summary

Methods

Modifier and Type	Method and Description
void	addBytesRead(int bytes) Add up a number of bytes that has been read from the backing file into the free page being bound.
void	done() The page fault completed successfully.
void	done(Throwable throwable) The page fault did not complete successfully, but instead caused the given Throwable to be thrown.
void	setCachePageId(int cachePageId) The id of the cache page that is being faulted into.
void	setParked(boolean parked) Set to 'true' if the page faulting thread ended up parking, while it waited for the eviction thread to free up a page that could be faulted into.

Field Detail

NULL

static final PageFaultEvent NULL

A PageFaultEvent that does nothing.

Method Detail

addBytesRead

void addBytesRead(int bytes)

Add up a number of bytes that has been read from the backing file into the free page being bound.

setCachePageId

void setCachePageId(int cachePageId)

The id of the cache page that is being faulted into.

setParked

void setParked(boolean parked)

Set to 'true' if the page faulting thread ended up parking, while it waited for the eviction thread to free up a page that could be faulted into.

done

void done()

The page fault completed successfully.

done

void done(Throwable throwable)

The page fault did not complete successfully, but instead caused the given Throwable to be thrown.