Package org.jruby.ext.ffi.jffi

Class AllocatedNativeMemoryIO

java.lang.Object

org.jruby.ext.ffi.MemoryIO

org.jruby.ext.ffi.jffi.BoundedNativeMemoryIO

org.jruby.ext.ffi.jffi.AllocatedNativeMemoryIO

All Implemented Interfaces:

AllocatedDirectMemoryIO

final class AllocatedNativeMemoryIO
extends BoundedNativeMemoryIO
implements AllocatedDirectMemoryIO

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	AllocatedNativeMemoryIO.AllocationGroup	Holder for a group of memory allocations.
private static final class	AllocatedNativeMemoryIO.MemoryAllocation	Represents a single native memory allocation

Field Summary

Fields

Modifier and Type	Field	Description
private final AllocatedNativeMemoryIO.MemoryAllocation	allocation
private static final ThreadLocal<Reference<AllocatedNativeMemoryIO.AllocationGroup>>	currentBucket
private static final Map<AllocatedNativeMemoryIO.AllocationGroup,Boolean>	referenceSet	Keeps strong references to the memory bucket until cleanup
private final Object	sentinel

Fields inherited from class org.jruby.ext.ffi.jffi.BoundedNativeMemoryIO

ADDRESS_SIZE, IO, LONG_SIZE, parent, size

Fields inherited from class org.jruby.ext.ffi.MemoryIO

address, isDirect

Constructor Summary

Constructors

Modifier	Constructor	Description
private	AllocatedNativeMemoryIO(Ruby runtime, Object sentinel, long address, int size, int align)

Method Summary

Modifier and Type	Method	Description
(package private) static final AllocatedNativeMemoryIO	allocate(Ruby runtime, int size, boolean clear)	Allocates native memory
(package private) static AllocatedNativeMemoryIO	allocateAligned(Ruby runtime, int size, int align, boolean clear)	Allocates native memory, aligned to a minimum boundary.
void	free()
boolean	isAutoRelease()
void	setAutoRelease(boolean autorelease)

Methods inherited from class org.jruby.ext.ffi.jffi.BoundedNativeMemoryIO

array, arrayLength, arrayOffset, asByteBuffer, dup, equals, get, get, get, get, get, get, getAddress, getByte, getDouble, getFloat, getInt, getLong, getMemoryIO, getNativeLong, getRuntime, getShort, getZeroTerminatedByteArray, getZeroTerminatedByteArray, hashCode, indexOf, indexOf, order, put, put, put, put, put, put, putAddress, putByte, putDouble, putFloat, putInt, putLong, putMemoryIO, putNativeLong, putShort, putZeroTerminatedByteArray, setMemory, slice, slice

Methods inherited from class org.jruby.ext.ffi.MemoryIO

address, isDirect, isNull

Methods inherited from class java.lang.Object

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

Field Details

referenceSet

private static final Map<AllocatedNativeMemoryIO.AllocationGroup,Boolean> referenceSet

Keeps strong references to the memory bucket until cleanup

currentBucket

private static final ThreadLocal<Reference<AllocatedNativeMemoryIO.AllocationGroup>> currentBucket

allocation

private final AllocatedNativeMemoryIO.MemoryAllocation allocation

sentinel

private final Object sentinel

Constructor Details

AllocatedNativeMemoryIO

private AllocatedNativeMemoryIO(Ruby runtime,
 Object sentinel,
 long address,
 int size,
 int align)

Method Details

allocate

static final AllocatedNativeMemoryIO allocate(Ruby runtime,
 int size,
 boolean clear)

Allocates native memory

Parameters:

runtime - The Ruby runtime

size - The number of bytes to allocate

clear - Whether the memory should be cleared (zeroed)

Returns:

A new AllocatedDirectMemoryIO

allocateAligned

static AllocatedNativeMemoryIO allocateAligned(Ruby runtime,
 int size,
 int align,
 boolean clear)

Allocates native memory, aligned to a minimum boundary.

Parameters:

runtime - The Ruby runtime

size - The number of bytes to allocate

align - The minimum alignment of the memory

clear - Whether the memory should be cleared (zeroed)

Returns:

A new AllocatedDirectMemoryIO

free

public void free()

Specified by:

free in interface AllocatedDirectMemoryIO

setAutoRelease

public void setAutoRelease(boolean autorelease)

Specified by:

setAutoRelease in interface AllocatedDirectMemoryIO

isAutoRelease

public boolean isAutoRelease()

Specified by:

isAutoRelease in interface AllocatedDirectMemoryIO