com.oracle.svm.core.image

Class AbstractImageHeapLayouter<T extends ImageHeapPartition>

java.lang.Object

com.oracle.svm.core.image.AbstractImageHeapLayouter<T>

All Implemented Interfaces:

ImageHeapLayouter

Direct Known Subclasses:

LinearImageHeapLayouter

public abstract class AbstractImageHeapLayouter<T extends ImageHeapPartition>
extends Object
implements ImageHeapLayouter

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractImageHeapLayouter.AbstractImageHeapPartition The native image heap comes in partitions.
static class	AbstractImageHeapLayouter.ImageHeapLayout

Constructor Summary

Constructors

Constructor and Description
AbstractImageHeapLayouter()

Method Summary

Modifier and Type	Method and Description
void	assignObjectToPartition(ImageHeapObject info, boolean immutable, boolean references, boolean relocatable) Assign an object to the most suitable partition.
protected abstract T	createPartition(String name, boolean containsReferences, boolean writable)
protected abstract T[]	createPartitionsArray(int count)
T[]	getPartitions() Returns all native image heap partitions.
protected T	getReadOnlyPrimitive()
protected T	getReadOnlyReference()
protected T	getReadOnlyRelocatable()
protected T	getWritablePrimitive()
protected T	getWritableReference()
AbstractImageHeapLayouter.ImageHeapLayout	layoutPartitionsAsContiguousHeap(String sectionName, int pageSize) This method places all heap partitions as one contiguous memory block in one section.
AbstractImageHeapLayouter.ImageHeapLayout	layoutPartitionsAsSeparatedHeap(String readOnlySectionName, long readOnlySectionOffset, String writableSectionName, long writableSectionOffset) This method layouts read-only and writable data as two separate memory blocks so that the data can be put in different sections of the native image.
protected static boolean	useHeapBase()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.svm.core.image.ImageHeapLayouter

assignPartitionRelativeOffsets, initialize

Constructor Detail

AbstractImageHeapLayouter

public AbstractImageHeapLayouter()

Method Detail

getPartitions

public T[] getPartitions()

Description copied from interface: ImageHeapLayouter

Returns all native image heap partitions.

Specified by:

getPartitions in interface ImageHeapLayouter

assignObjectToPartition

public void assignObjectToPartition(ImageHeapObject info,
                                    boolean immutable,
                                    boolean references,
                                    boolean relocatable)

Description copied from interface: ImageHeapLayouter

Assign an object to the most suitable partition.

Specified by:

assignObjectToPartition in interface ImageHeapLayouter

layoutPartitionsAsContiguousHeap

public AbstractImageHeapLayouter.ImageHeapLayout layoutPartitionsAsContiguousHeap(String sectionName,
                                                                                  int pageSize)

Description copied from interface: ImageHeapLayouter

This method places all heap partitions as one contiguous memory block in one section. After calling that method, all native image heap objects are assigned their final address. This address must not change anymore.

Specified by:

layoutPartitionsAsContiguousHeap in interface ImageHeapLayouter

layoutPartitionsAsSeparatedHeap

public AbstractImageHeapLayouter.ImageHeapLayout layoutPartitionsAsSeparatedHeap(String readOnlySectionName,
                                                                                 long readOnlySectionOffset,
                                                                                 String writableSectionName,
                                                                                 long writableSectionOffset)

Description copied from interface: ImageHeapLayouter

This method layouts read-only and writable data as two separate memory blocks so that the data can be put in different sections of the native image. After calling that method, all native image heap objects are assigned their final address. This address must not change anymore.

Specified by:

layoutPartitionsAsSeparatedHeap in interface ImageHeapLayouter

getReadOnlyPrimitive

protected T getReadOnlyPrimitive()

getReadOnlyReference

protected T getReadOnlyReference()

getReadOnlyRelocatable

protected T getReadOnlyRelocatable()

getWritablePrimitive

protected T getWritablePrimitive()

getWritableReference

protected T getWritableReference()

useHeapBase

protected static boolean useHeapBase()

createPartitionsArray

protected abstract T[] createPartitionsArray(int count)

createPartition

protected abstract T createPartition(String name,
                                     boolean containsReferences,
                                     boolean writable)