Module openj9.dtfj

Package com.ibm.j9ddr.vm29.j9.gc

Class GCObjectHeapIteratorMarkMapIterator_V1

java.lang.Object

com.ibm.j9ddr.vm29.j9.gc.GCBase

com.ibm.j9ddr.vm29.j9.gc.GCIterator

com.ibm.j9ddr.vm29.j9.gc.GCObjectHeapIterator

com.ibm.j9ddr.vm29.j9.gc.GCObjectHeapIteratorMarkMapIterator_V1

All Implemented Interfaces:

SlotIterator, Iterator

public class GCObjectHeapIteratorMarkMapIterator_V1
extends GCObjectHeapIterator

Field Summary

Fields

Modifier and Type	Field	Description
protected VoidPointer	_heapBase
protected UDATAPointer	_heapMapBits
protected UDATA	_markWordCache
protected com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer	_nextObject
protected long	_nextSlotIndex
protected int	_shiftCount
protected long	_topSlotIndex

Fields declared in class com.ibm.j9ddr.vm29.j9.gc.GCObjectHeapIterator

includeDeadObjects, includeLiveObjects

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	GCObjectHeapIteratorMarkMapIterator_V1(GCHeapRegionDescriptor hrd)

Method Summary

Modifier and Type	Method	Description
void	advance(UDATA size)
boolean	hasNext()	Returns true if the iteration has more elements.
com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer	next()	Returns the next element in the iteration.
protected void	nextImpl()
com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer	peek()

Methods declared in class com.ibm.j9ddr.vm29.j9.gc.GCObjectHeapIterator

fromHeapRegionDescriptor, fromHeapRegionDescriptor, nextAddress

Methods declared in class com.ibm.j9ddr.vm29.j9.gc.GCBase

getExtensions, getJavaVM

Methods declared in class java.lang.Object

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

Methods declared in interface java.util.Iterator

forEachRemaining, remove

Field Details

_heapBase

protected VoidPointer _heapBase

_heapMapBits

protected UDATAPointer _heapMapBits

_markWordCache

protected UDATA _markWordCache

_nextSlotIndex

protected long _nextSlotIndex

_topSlotIndex

protected long _topSlotIndex

_shiftCount

protected int _shiftCount

_nextObject

protected com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer _nextObject

Constructor Details

GCObjectHeapIteratorMarkMapIterator_V1

protected GCObjectHeapIteratorMarkMapIterator_V1(GCHeapRegionDescriptor hrd)
                                          throws CorruptDataException

Throws:

CorruptDataException

Method Details

advance

public void advance(UDATA size)

next

public com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer next()

Description copied from interface: java.util.Iterator

Returns the next element in the iteration.

Returns:

the next element in the iteration

peek

public com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer peek()

nextImpl

protected void nextImpl()

hasNext

public boolean hasNext()

Description copied from interface: java.util.Iterator

Returns true if the iteration has more elements. (In other words, returns true if Iterator.next() would return an element rather than throwing an exception.)

Returns:

true if the iteration has more elements