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 GCObjectHeapIterator

includeDeadObjects, includeLiveObjects

Modifier and Type	Field	Description
protected boolean	includeDeadObjects
protected boolean	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 GCObjectHeapIterator

fromHeapRegionDescriptor, fromHeapRegionDescriptor, nextAddress

Modifier and Type	Method	Description
static GCObjectHeapIterator	fromHeapRegionDescriptor(GCHeapRegionDescriptor hrd, boolean includeLiveObjects, boolean includeDeadObjects)
static GCObjectHeapIterator	fromHeapRegionDescriptor(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorPointer hrd, boolean includeLiveObjects, boolean includeDeadObjects)
VoidPointer	nextAddress()

Methods declared in class GCBase

getExtensions, getJavaVM

Modifier and Type	Method	Description
static com.ibm.j9ddr.vm29.pointer.generated.MM_GCExtensionsPointer	getExtensions()
static com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer	getJavaVM()

Methods declared in class Object

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

Methods declared in interface 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