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sun.jvm.hotspot.gc.g1

public Class G1HeapRegion

extends ContiguousSpace
implements LiveRegionsProvider
Class Inheritance
All Implemented Interfaces
sun.jvm.hotspot.gc.shared.LiveRegionsProvider
Imports
java.io.PrintStream, java.util.ArrayList, .List, sun.jvm.hotspot.utilities.Observable, .Observer, sun.jvm.hotspot.debugger.Address, .OopHandle, sun.jvm.hotspot.gc.shared.ContiguousSpace, .LiveRegionsProvider, sun.jvm.hotspot.memory.MemRegion, sun.jvm.hotspot.runtime.VM, .VMObjectFactory, sun.jvm.hotspot.types.AddressField, .CIntegerField, .Type, .TypeDataBase

Field Summary

Modifier and TypeField and Description
private static AddressField
bottomField

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.bottomField.

private static AddressField
endField

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.endField.

private static CIntegerField
grainBytesField

private static CIntegerField
pinnedCountField

private static long
pointerSize

private static AddressField
topField

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.topField.

private G1HeapRegionType
type

private static long
typeFieldOffset

Constructor Summary

AccessConstructor and Description
public
G1HeapRegion(Address addr)

Method Summary

Modifier and TypeMethod and Description
public Address
bottom()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.bottom.

public Address
end()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.end.

public long
free()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.free.

public List<MemRegion>
getLiveRegions()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.getLiveRegions.

Implements sun.jvm.hotspot.gc.shared.LiveRegionsProvider.getLiveRegions.

Returns regions of Space where live objects live

public static long
getPointerSize()

public static long
grainBytes()

private static synchronized void
initialize(TypeDataBase db)

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.initialize.

public boolean
isFree()

public boolean
isHumongous()

public boolean
isInRegion(Address addr)

public boolean
isOld()

public boolean
isPinned()

public boolean
isYoung()

public void
printOn(PrintStream tty)

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.printOn.

public Address
top()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.top.

public long
used()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.used.

public MemRegion
usedRegion()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.usedRegion.

Returns a subregion of the space containing all the objects in the space.

Inherited from sun.jvm.hotspot.gc.shared.ContiguousSpace:
bottomAsOopHandlecapacitycontainsnextOopHandleprint

Field Detail

bottomFieldback to summary
private static AddressField bottomField

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.bottomField.

endFieldback to summary
private static AddressField endField

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.endField.

grainBytesFieldback to summary
private static CIntegerField grainBytesField
pinnedCountFieldback to summary
private static CIntegerField pinnedCountField
pointerSizeback to summary
private static long pointerSize
topFieldback to summary
private static AddressField topField

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.topField.

typeback to summary
private G1HeapRegionType type
typeFieldOffsetback to summary
private static long typeFieldOffset

Constructor Detail

G1HeapRegionback to summary
public G1HeapRegion(Address addr)

Method Detail

bottomback to summary
public Address bottom()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.bottom.

endback to summary
public Address end()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.end.

freeback to summary
public long free()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.free.

getLiveRegionsback to summary
public List<MemRegion> getLiveRegions()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.getLiveRegions.

Implements sun.jvm.hotspot.gc.shared.LiveRegionsProvider.getLiveRegions.

Doc from sun.jvm.hotspot.gc.shared.ContiguousSpace.getLiveRegions.

Returns regions of Space where live objects live

Annotations
@Override
getPointerSizeback to summary
public static long getPointerSize()
grainBytesback to summary
public static long grainBytes()
initializeback to summary
private static synchronized void initialize(TypeDataBase db)

Hides sun.jvm.hotspot.gc.shared.ContiguousSpace.initialize.

isFreeback to summary
public boolean isFree()
isHumongousback to summary
public boolean isHumongous()
isInRegionback to summary
public boolean isInRegion(Address addr)
isOldback to summary
public boolean isOld()
isPinnedback to summary
public boolean isPinned()
isYoungback to summary
public boolean isYoung()
printOnback to summary
public void printOn(PrintStream tty)

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.printOn.

topback to summary
public Address top()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.top.

usedback to summary
public long used()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.used.

usedRegionback to summary
public MemRegion usedRegion()

Overrides sun.jvm.hotspot.gc.shared.ContiguousSpace.usedRegion.

Returns a subregion of the space containing all the objects in the space.