Uses of Class
org.vmmagic.unboxed.Extent

Packages that use Extent

Package	Description
org.jikesrvm
org.jikesrvm.classloader	Provides classes that implement the classloading system as well as data types that represent Java entities like classes, fields, methods and primitives.
org.jikesrvm.compilers.opt.ir.operand
org.jikesrvm.mm.mminterface
org.jikesrvm.mm.mmtk
org.jikesrvm.objectmodel
org.jikesrvm.options
org.jikesrvm.runtime
org.jikesrvm.util	Provides utility classes and implementations of data structures suitable for core runtime classes.
org.mmtk.plan
org.mmtk.plan.semispace.usePrimitiveWriteBarriers
org.mmtk.policy
org.mmtk.policy.immix
org.mmtk.utility
org.mmtk.utility.alloc
org.mmtk.utility.gcspy.drivers
org.mmtk.utility.heap
org.mmtk.vm	Provides classes that specify the interface between MMTk and the VM.
org.vmmagic.unboxed
org.vmutil.options

Uses of Extent in org.jikesrvm

Methods in org.jikesrvm with parameters of type Extent

Modifier and Type	Method and Description
static void	VM.sysWrite(Extent e)
static void	VM.sysWriteln(Extent e)
static void	VM.write(Extent addr)
static void	VM.writeHex(Extent value)

Uses of Extent in org.jikesrvm.classloader

Methods in org.jikesrvm.classloader that return Extent

Modifier and Type	Method and Description
Extent	RVMField.getExtentValueUnchecked(Object obj)

Methods in org.jikesrvm.classloader with parameters of type Extent

Modifier and Type	Method and Description
void	RVMField.setExtentValueUnchecked(Object obj, Extent ref)

Uses of Extent in org.jikesrvm.compilers.opt.ir.operand

Constructors in org.jikesrvm.compilers.opt.ir.operand with parameters of type Extent

Constructor and Description
AddressConstantOperand(Extent v) Constructs a new address constant operand with the specified offset value.

Uses of Extent in org.jikesrvm.mm.mminterface

Methods in org.jikesrvm.mm.mminterface that return Extent

Modifier and Type	Method and Description
static Extent	Barriers.extentFieldRead(Object ref, Offset offset, int locationMetadata) Barrier for loads of Extents from fields of instances (i.e. getfield).
static Extent	MemoryManager.freeMemory() Returns the amount of free memory.
static Extent	MemoryManager.getMaxHeapSize() Return the max heap size in bytes (as set by -Xmx).
static Extent	MemoryManager.maxMemory() Returns the maximum amount of memory VM will attempt to use.
static Extent	MemoryManager.totalMemory() Returns the amount of total memory.

Methods in org.jikesrvm.mm.mminterface with parameters of type Extent

Modifier and Type	Method and Description
static void	Barriers.extentFieldWrite(Object ref, Extent value, Offset offset, int locationMetadata) Barrier for writes of Extents into fields of instances (i.e. putfield).

Uses of Extent in org.jikesrvm.mm.mmtk

Methods in org.jikesrvm.mm.mmtk that return Extent

Modifier and Type	Method and Description
Extent	Barriers.extentRead(ObjectReference ref, Word offset, Word location, int mode) Perform the actual read of the read barrier, returning the value as a raw Extent.

Methods in org.jikesrvm.mm.mmtk with parameters of type Extent

Modifier and Type	Method and Description
void	Barriers.extentWrite(ObjectReference ref, Extent target, Word offset, Word location, int mode) Perform the actual write of the write barrier, writing the value as a raw Extent.
void	MMTk_Events.heapSizeChanged(Extent heapSize)
void	Memory.zero(boolean useNT, Address start, Extent len)

Uses of Extent in org.jikesrvm.objectmodel

Methods in org.jikesrvm.objectmodel with parameters of type Extent

Modifier and Type	Method and Description
static void	ObjectModel.fillAlignmentGap(BootImageInterface bootImage, Address address, Extent size) Fills an alignment gap with the alignment value

Uses of Extent in org.jikesrvm.options

Methods in org.jikesrvm.options that return Extent

Modifier and Type	Method and Description
protected Extent	OptionSet.pagesToBytes(int pages)

Methods in org.jikesrvm.options with parameters of type Extent

Modifier and Type	Method and Description
protected int	OptionSet.bytesToPages(Extent bytes)

Uses of Extent in org.jikesrvm.runtime

Fields in org.jikesrvm.runtime declared as Extent

Modifier and Type	Field and Description
Extent	BootRecord.bytesInPage size of a virtual memory page in bytes
Extent	BootRecord.initialHeapSize initial size of heap
Extent	BootRecord.maximumHeapSize maximum size of heap

Methods in org.jikesrvm.runtime that return Extent

Modifier and Type	Method and Description
static Extent	Magic.getExtentAtOffset(Object object, Offset offset) Get Extent at arbitrary (byte) offset from object.
static Extent	Magic.getExtentAtOffset(Object object, Offset offset, int locationMetadata) Get Extent at arbitrary (byte) offset from object.

Methods in org.jikesrvm.runtime with parameters of type Extent

Modifier and Type	Method and Description
static Address	Memory.dzmmap(Address address, Extent size) Do mmap demand zero fixed address memory mapping call
static boolean	Memory.isPageMultiple(Extent val)
static void	Memory.memcopy(Address dst, Address src, Extent cnt) Copies a region of memory.
static Address	Memory.mmap(Address address, Extent size, int prot, int flags) Do generic mmap non-file memory mapping call
static boolean	Memory.mprotect(Address address, Extent size, int prot) Do mprotect system call
static void	Magic.setExtentAtOffset(Object object, Offset offset, Extent newvalue) Set Extent at arbitrary (byte) offset from object.
static void	Magic.setExtentAtOffset(Object object, Offset offset, Extent newvalue, int locationMetadata) Set Extent at arbitrary (byte) offset from object.
static void	Memory.setPageSize(Extent pageSizeFromBootRecord) Sets the page size.
static void	Statics.setSlotContents(Offset offset, Extent value) Set contents of a slot, as a Extent
abstract void	SysCall.sysCopy(Address dst, Address src, Extent cnt) Copies memory.
abstract void	SysCall.sysMemmove(Address dst, Address src, Extent cnt) Copies memory without making any assumptions about the memory areas.
abstract Address	SysCall.sysMMap(Address start, Extent length, int protection, int flags, int fd, Offset offset)
abstract Address	SysCall.sysMMapErrno(Address start, Extent length, int protection, int flags, int fd, Offset offset)
abstract int	SysCall.sysMProtect(Address start, Extent length, int prot)
abstract void	SysCall.sysZero(Address dst, Extent cnt)
abstract void	SysCall.sysZeroNT(Address dst, Extent cnt)
static void	Memory.zero(boolean useNT, Address start, Extent len) Zero a region of memory.

Uses of Extent in org.jikesrvm.util

Fields in org.jikesrvm.util declared as Extent

Modifier and Type	Field and Description
private Extent	AddressInputStream.length Length of the memory region
private Extent	AddressInputStream.markOffset Mark offset.
private Extent	AddressInputStream.offset Offset to be read.

Constructors in org.jikesrvm.util with parameters of type Extent

Constructor and Description
AddressInputStream(Address startAddress, Extent length)

Uses of Extent in org.mmtk.plan

Methods in org.mmtk.plan that return Extent

Modifier and Type	Method and Description
static Extent	Plan.availableMemory() Return the amount of available memory, in bytes.
Extent	MutatorContext.extentRead(ObjectReference src, Address slot, Word metaDataA, Word metaDataB, int mode) Read an Extent.
static Extent	Plan.freeMemory() Return the amount of free memory, in bytes (where free is defined as not in use).
static Extent	Plan.reservedMemory() Return the amount of memory in use, in bytes.
static Extent	Plan.totalMemory() Return the total amount of memory managed to the memory management system, in bytes.
static Extent	Plan.usedMemory() Return the amount of memory in use, in bytes.

Methods in org.mmtk.plan with parameters of type Extent

Modifier and Type	Method and Description
void	MutatorContext.extentWrite(ObjectReference src, Address slot, Extent value, Word metaDataA, Word metaDataB, int mode) Write an Extent.

Uses of Extent in org.mmtk.plan.semispace.usePrimitiveWriteBarriers

Methods in org.mmtk.plan.semispace.usePrimitiveWriteBarriers with parameters of type Extent

Modifier and Type	Method and Description
void	UsePrimitiveWriteBarriersMutator.extentWrite(ObjectReference src, Address slot, Extent value, Word metaDataA, Word metaDataB, int mode) Write an Extent.

Uses of Extent in org.mmtk.policy

Fields in org.mmtk.policy declared as Extent

Modifier and Type	Field and Description
static Extent	Space.AVAILABLE_BYTES
protected Extent	Space.extent
private static Extent	SegregatedFreeListSpace.LIVE_WORD_STRIDE
private static Extent	SegregatedFreeListSpace.META_DATA_OFFSET

Methods in org.mmtk.policy that return Extent

Modifier and Type	Method and Description
static Extent	Space.chunkAlign(Extent bytes, boolean down) Align an extent to a space chunk
Extent	Space.getExtent()
static Extent	Space.getFracAvailable(float frac) Convert a fraction into a number of bytes according to the fraction of available bytes.
Extent	BaseLargeObjectSpace.getSize(Address first) Return the size of the super page
protected Extent	MarkCompactLocal.maximumRegionSize()

Methods in org.mmtk.policy with parameters of type Extent

Modifier and Type	Method and Description
static Extent	Space.chunkAlign(Extent bytes, boolean down) Align an extent to a space chunk
protected void	SegregatedFreeListSpace.clearBlockMark(Address block, Extent blockSize) Clear block marks for a block
protected boolean	SegregatedFreeListSpace.containsLiveCell(Address block, Extent blockSize, boolean clearMarks) Does this block contain any live cells.
void	Space.growSpace(Address start, Extent bytes, boolean newChunk) This hook is called by page resources each time a space grows.
protected Address	SegregatedFreeListSpace.sweepBlock(Address block, int sizeClass, Extent blockSize, Address availableHead, boolean clearMarks) Sweeps a block, freeing it and adding to the list given by availableHead if it contains no free objects.

Uses of Extent in org.mmtk.policy.immix

Methods in org.mmtk.policy.immix with parameters of type Extent

Modifier and Type	Method and Description
void	ImmixSpace.growSpace(Address start, Extent bytes, boolean newChunk)

Uses of Extent in org.mmtk.utility

Fields in org.mmtk.utility declared as Extent

Modifier and Type	Field and Description
private Extent	SimpleHashtable.entrySize The size of each entry in the table
private Extent	SimpleHashtable.size The full size of the table

Methods in org.mmtk.utility that return Extent

Modifier and Type	Method and Description
static Extent	Conversions.pagesToBytes(int pages)
static Extent	Conversions.roundDownMB(Extent bytes)

Methods in org.mmtk.utility with parameters of type Extent

Modifier and Type	Method and Description
private static void	Memory.assertAligned(Extent value)
static int	Conversions.bytesToMmapChunksUp(Extent bytes)
static int	Conversions.bytesToPages(Extent bytes)
static int	Conversions.bytesToPagesUp(Extent bytes)
static Extent	Conversions.roundDownMB(Extent bytes)
static void	Log.write(Extent e) writes an extent, in hexadecimal.
static void	Log.writeln(Extent e) writes an extent, in hexadecimal, and a new-line, then flushes the buffer.
static void	Log.writeln(Extent e, boolean flush) writes an extent, in hexadecimal, and a new-line, then optionally flushes the buffer.
static void	Memory.zero(Address start, Extent bytes) Zero a region of memory
static void	Memory.zeroSmall(Address start, Extent bytes) Zero a small region of memory

Constructors in org.mmtk.utility with parameters of type Extent

Constructor and Description
SimpleHashtable(RawPageSpace rps, int logSize, Extent es) Create a new data table of a specified size.

Uses of Extent in org.mmtk.utility.alloc

Fields in org.mmtk.utility.alloc declared as Extent

Modifier and Type	Field and Description
static Extent	BlockAllocator.META_DATA_EXTENT

Methods in org.mmtk.utility.alloc that return Extent

Modifier and Type	Method and Description
static Extent	EmbeddedMetaData.getMetaDataOffset(Address address, int logCoverage, int logAlign) Given an address, the density (coverage) of a meta data type, and the granularity (alignment) of the meta data, return the offset into the meta data the address.
protected Extent	BumpPointer.maximumRegionSize() Maximum size of a single region.

Methods in org.mmtk.utility.alloc with parameters of type Extent

Modifier and Type	Method and Description
private void	BumpPointer.updateMetaData(Address start, Extent size, int bytes) Update the metadata to reflect the addition of a new region.

Uses of Extent in org.mmtk.utility.gcspy.drivers

Methods in org.mmtk.utility.gcspy.drivers with parameters of type Extent

Modifier and Type	Method and Description
protected int	AbstractDriver.countTileNum(Extent extent, int tileSize) Count number of tiles in an address range.
void	AbstractDriver.setRange(Address start, Extent extent) Indicate the limits of a space.

Uses of Extent in org.mmtk.utility.heap

Fields in org.mmtk.utility.heap declared as Extent

Modifier and Type	Field and Description
private static Extent	HeapGrowthManager.currentHeapSize The current heap size in bytes
Extent	VMRequest.extent
private static Extent	HeapGrowthManager.initialHeapSize The initial heap size (-Xms) in bytes
private static Extent	HeapGrowthManager.maxHeapSize The maximum heap size (-Xms) in bytes

Methods in org.mmtk.utility.heap that return Extent

Modifier and Type	Method and Description
static Extent	Map.getContiguousRegionSize(Address start) Return the size of a contiguous region in bytes.
static Extent	HeapGrowthManager.getCurrentHeapSize()
static Extent	HeapGrowthManager.getInitialHeapSize() Return the initial heap size in bytes (as set by -Xms).
static Extent	HeapGrowthManager.getMaxHeapSize() Return the max heap size in bytes (as set by -Xmx).
Extent	FreeListPageResource.getSize(Address first) Return the size of the super page

Methods in org.mmtk.utility.heap with parameters of type Extent

Modifier and Type	Method and Description
static void	HeapGrowthManager.boot(Extent initial, Extent max) Initialize heap size parameters and the mechanisms used to adaptively change heap size.
static VMRequest	VMRequest.fixed(Address start, Extent extent) A request for an explicit region of memory
static VMRequest	VMRequest.fixedExtent(Extent extent, boolean top) A request for a number of bytes of memory, optionally requesting the highest available.
static void	Map.insert(Address start, Extent extent, int descriptor, Space space) Insert a space and its descriptor into the map, associating it with a particular address range.
static void	HeapGrowthManager.overrideGrowHeapSize(Extent size) Forcibly grow the heap by the given number of bytes.
private void	MonotonePageResource.releasePages(Address first, Extent bytes) Releases a range of pages associated with this page resource, optionally zeroing on release and optionally memory protecting on release.
private void	FreeListPageResource.reserveMetaData(Extent extent) Reserve virtual address space for meta-data.

Constructors in org.mmtk.utility.heap with parameters of type Extent

Constructor and Description
FreeListPageResource(Space space, Address start, Extent bytes) Constructor Contiguous free list resource.
FreeListPageResource(Space space, Address start, Extent bytes, int metaDataPagesPerRegion) Constructor Contiguous free list resource.
MonotonePageResource(Space space, Address start, Extent bytes, int metaDataPagesPerRegion) Constructor Contiguous monotone resource.
VMRequest(int type, Address start, Extent bytes, float frac, boolean top)

Uses of Extent in org.mmtk.vm

Methods in org.mmtk.vm that return Extent

Modifier and Type	Method and Description
abstract Extent	Barriers.extentRead(ObjectReference ref, Word metaDataA, Word metaDataB, int mode) Perform the actual read of the read barrier, returning the value as a raw Extent.

Methods in org.mmtk.vm with parameters of type Extent

Modifier and Type	Method and Description
abstract void	Barriers.extentWrite(ObjectReference ref, Extent target, Word metaDataA, Word metaDataB, int mode) Perform the actual write of the write barrier, writing the value as a raw Extent.
abstract void	MMTk_Events.heapSizeChanged(Extent heapSize)
abstract void	Memory.zero(boolean useNT, Address start, Extent len) Zero a region of memory.

Uses of Extent in org.vmmagic.unboxed

Methods in org.vmmagic.unboxed that return Extent

Modifier and Type	Method and Description
static Extent	Extent.fromIntSignExtend(int address)
static Extent	Extent.fromIntZeroExtend(int address)
Extent	ExtentArray.get(int index)
static Extent	Extent.max()
Extent	Extent.minus(Extent byteSize)
Extent	Extent.minus(int byteSize)
static Extent	Extent.one()
Extent	Extent.plus(Extent byteSize)
Extent	Extent.plus(int byteSize)
Extent	Word.toExtent()
static Extent	Extent.zero()

Methods in org.vmmagic.unboxed with parameters of type Extent

Modifier and Type	Method and Description
boolean	Extent.EQ(Extent extent2)
boolean	Extent.GE(Extent extent2)
boolean	Extent.GT(Extent extent2)
boolean	Extent.LE(Extent extent2)
boolean	Extent.LT(Extent extent2)
Word	Word.minus(Extent w2) Subtract an extent from a word.
Address	Address.minus(Extent extent) Subtract an Extent from this Address, and return the result.
Extent	Extent.minus(Extent byteSize)
boolean	Extent.NE(Extent extent2)
Word	Word.plus(Extent w2) Add an extent to a word
Address	Address.plus(Extent extent) Add an Extent to this Address, and return the sum.
Extent	Extent.plus(Extent byteSize)
void	ExtentArray.set(int index, Extent v)

Uses of Extent in org.vmutil.options

Methods in org.vmutil.options that return Extent

Modifier and Type	Method and Description
Extent	PagesOption.getBytes() Read the current value of the option in bytes.
Extent	PagesOption.getDefaultBytes() Read the default value of the option in bytes.
protected abstract Extent	OptionSet.pagesToBytes(int pages) Convert from pages into bytes.

Methods in org.vmutil.options with parameters of type Extent

Modifier and Type	Method and Description
protected abstract int	OptionSet.bytesToPages(Extent bytes) Convert bytes into pages, rounding up if necessary.
void	PagesOption.setBytes(Extent value) Update the value of the option, echoing the change if logChanges is set.