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Memory.Heap
Class LargeHeap  

java.lang.Object
  Memory.Heap.Heap
      Memory.Heap.LargeHeap

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public class LargeHeap

extends Heap

Version:

$Id: LargeHeap.java,v 1.4 2003/05/12 10:05:19 joewhaley Exp $

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Field Summary
private  int[]	countLargeAlloc
private  int	GC_INITIAL_LARGE_SPACE_PAGES
private  int	GC_LARGE_SIZES
private  ImmortalHeap	immortal
private  int	large_last_allocated
private  short[]	largeSpaceAlloc
private  short[]	largeSpaceMark
private  int	largeSpacePages
private  int	pageSize
private  int	usedPages

 

Fields inherited from class Memory.Heap.Heap

allHeaps, end, name, start, verbose

 

Constructor Summary

LargeHeap(ImmortalHeap imm)           Initialize for boot image - called from init of various collectors

 

Method Summary
protected  Memory.HeapAddress	allocateZeroedMemory(int size)           Allocate size bytes of zeroed memory.
private  void	countObjects()
void	endCollect()
int	freeSpace()
void	init()
boolean	isLive(Memory.HeapAddress ref)
boolean	mark(Memory.HeapAddress ref)
protected  void	postAllocationProcessing(java.lang.Object newObj)           Hook to allow heap to perform post-allocation processing of the object.
void	startCollect()
int	totalMemory()           Get total amount of memory used by large space.

 

Methods inherited from class Memory.Heap.Heap

addrInAnyHeap, addrInHeap, allocateArray, allocateArray, allocateObject, allocateObject, boot, clobber, clobber, getSize, paranoidScan, refInAnyHeap, refInHeap, setRegion, show, show, showAllHeaps, showRange, touchPages, zero

 

Methods inherited from class java.lang.Object

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

 

Field Detail

immortal

private ImmortalHeap immortal

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pageSize

private final int pageSize

See Also:

Constant Field Values

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GC_LARGE_SIZES

private final int GC_LARGE_SIZES

See Also:

Constant Field Values

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GC_INITIAL_LARGE_SPACE_PAGES

private final int GC_INITIAL_LARGE_SPACE_PAGES

See Also:

Constant Field Values

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usedPages

private int usedPages

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largeSpacePages

private int largeSpacePages

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large_last_allocated

private int large_last_allocated

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largeSpaceAlloc

private short[] largeSpaceAlloc

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largeSpaceMark

private short[] largeSpaceMark

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countLargeAlloc

private int[] countLargeAlloc

Constructor Detail

LargeHeap

public LargeHeap(ImmortalHeap imm)

Initialize for boot image - called from init of various collectors

Method Detail

init

public void init()

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totalMemory

public int totalMemory()

Get total amount of memory used by large space.

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allocateZeroedMemory

protected Memory.HeapAddress allocateZeroedMemory(int size)

Allocate size bytes of zeroed memory. Size is a multiple of wordsize, and the returned memory must be word aligned

Specified by:

allocateZeroedMemory in class Heap

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postAllocationProcessing

protected void postAllocationProcessing(java.lang.Object newObj)

Hook to allow heap to perform post-allocation processing of the object. For example, setting the GC state bits in the object header.

Specified by:

postAllocationProcessing in class Heap

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startCollect

public void startCollect()

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endCollect

public void endCollect()

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isLive

public boolean isLive(Memory.HeapAddress ref)

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mark

public boolean mark(Memory.HeapAddress ref)

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countObjects

private void countObjects()

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freeSpace

public int freeSpace()

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