io.ray.streaming.runtime.util

Class Platform

java.lang.Object

io.ray.streaming.runtime.util.Platform

public final class Platform
extends Object

Based on org.apache.spark.unsafe.Platform

Field Summary

Fields

Modifier and Type	Field and Description
static sun.misc.Unsafe	UNSAFE

Constructor Summary

Constructors

Constructor and Description
Platform()

Method Summary

Modifier and Type	Method and Description
static long	getAddress(ByteBuffer buffer)
static void	wrapDirectBuffer(ByteBuffer buffer, long address, int size) Wrap a buffer [address, address + size) into provided buffer.
static ByteBuffer	wrapDirectBuffer(long address, int size) Wrap a buffer [address, address + size) as a DirectByteBuffer.

Methods inherited from class java.lang.Object

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

Field Detail

UNSAFE

public static final sun.misc.Unsafe UNSAFE

Constructor Detail

Platform

public Platform()

Method Detail

wrapDirectBuffer

public static ByteBuffer wrapDirectBuffer(long address,
                                          int size)

Wrap a buffer [address, address + size) as a DirectByteBuffer.

wrapDirectBuffer

public static void wrapDirectBuffer(ByteBuffer buffer,
                                    long address,
                                    int size)

Wrap a buffer [address, address + size) into provided buffer.

getAddress

public static long getAddress(ByteBuffer buffer)

Parameters:

buffer - a DirectBuffer backed by off-heap memory

Returns:

address of off-heap memory