Module openj9.dtfj

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

Class GCMemoryPool

java.lang.Object

com.ibm.j9ddr.vm29.j9.gc.GCMemoryPool

Direct Known Subclasses:

GCMemoryPoolAddressOrderedList, GCMemoryPoolAggregatedCellList, GCMemoryPoolSplitAddressOrderedList

public abstract class GCMemoryPool
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	GCMemoryPool.MemoryPoolType

Field Summary

Fields

Modifier and Type	Field	Description
protected com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer	_memoryPool
protected GCMemoryPool.MemoryPoolType	_memoryPoolType
protected String	_poolName
protected GCHeapRegionDescriptor	_region

Constructor Summary

Constructors

Constructor	Description
GCMemoryPool(GCHeapRegionDescriptor region, com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer memoryPool)

Method Summary

Modifier and Type	Method	Description
void	checkFreeLists(IEventListener listener)
protected void	freeEntryCheckGeneric(GCHeapLinkedFreeHeader freeListEntry)	Check individual entries.
static GCMemoryPool	fromMemoryPoolPointerInRegion(GCHeapRegionDescriptor region, com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer memoryPool)
com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer	getMemoryPoolPointer()
String	getPoolName()
GCHeapRegionDescriptor	getRegion()
GCMemoryPool.MemoryPoolType	getType()

Methods declared in class java.lang.Object

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

Field Detail

_poolName

protected String _poolName

_memoryPoolType

protected GCMemoryPool.MemoryPoolType _memoryPoolType

_region

protected GCHeapRegionDescriptor _region

_memoryPool

protected com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer _memoryPool

Constructor Detail

GCMemoryPool

public GCMemoryPool(GCHeapRegionDescriptor region,
                    com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer memoryPool)
             throws CorruptDataException

Throws:

CorruptDataException

Method Detail

fromMemoryPoolPointerInRegion

public static GCMemoryPool fromMemoryPoolPointerInRegion(GCHeapRegionDescriptor region,
                                                         com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer memoryPool)
                                                  throws CorruptDataException

Throws:

CorruptDataException

getType

public GCMemoryPool.MemoryPoolType getType()

getPoolName

public String getPoolName()

getRegion

public GCHeapRegionDescriptor getRegion()

getMemoryPoolPointer

public com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer getMemoryPoolPointer()

freeEntryCheckGeneric

protected void freeEntryCheckGeneric(GCHeapLinkedFreeHeader freeListEntry)
                              throws CorruptDataException,
                                     CorruptFreeEntryException

Check individual entries. This check is the same for ALL collectors

Parameters:

freeListEntry - A structure to a free entry for all collectors (except Balanced)

Throws:

CorruptFreeEntryException - This needs to be caught by a listener to be of any use

CorruptDataException

checkFreeLists

public void checkFreeLists(IEventListener listener)