com.aparapi.internal.util

Class UnsafeWrapper

java.lang.Object

com.aparapi.internal.util.UnsafeWrapper

public class UnsafeWrapper
extends Object

A wrapper around sun.misc.Unsafe for handling atomic operations, copies from fields to arrays and vice versa. We avoid using sun.misc.Unsafe directly using reflection, mostly just to avoid getting 'unsafe' compiler errors. This might need to be changed if we start to see performance issues.

Author:

gfrost

Constructor Summary

Constructors

Constructor and Description
UnsafeWrapper()

Method Summary

Modifier and Type	Method and Description
static int	arrayBaseOffset(Class<?> _arrayClass)
static int	arrayIndexScale(Class<?> _arrayClass)
static int	atomicAdd(int[] _arr, int _index, int _delta)
static boolean	getBoolean(Object _object, long _offset)
static byte	getByte(Object _object, long _offset)
static float	getFloat(Object _object, long _offset)
static int	getInt(Object _object, long _offset)
static long	getLong(Object _object, long _offset)
static Object	getObject(Object _object, long _offset)
static long	objectFieldOffset(Field _field)
static void	putBoolean(Object _object, long _offset, boolean _boolean)
static void	putByte(Object _object, long _offset, byte _byte)
static void	putDouble(Object _object, long _offset, double _double)
static void	putFloat(Object _object, long _offset, float _float)
static void	putInt(Object _object, long _offset, int _int)
static void	putLong(Object _object, long _offset, long _long)

Methods inherited from class java.lang.Object

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

Constructor Detail

UnsafeWrapper

public UnsafeWrapper()

Method Detail

atomicAdd

public static int atomicAdd(int[] _arr,
                            int _index,
                            int _delta)

arrayBaseOffset

public static int arrayBaseOffset(Class<?> _arrayClass)

arrayIndexScale

public static int arrayIndexScale(Class<?> _arrayClass)

getObject

public static Object getObject(Object _object,
                               long _offset)

getInt

public static int getInt(Object _object,
                         long _offset)

getFloat

public static float getFloat(Object _object,
                             long _offset)

getByte

public static byte getByte(Object _object,
                           long _offset)

getBoolean

public static boolean getBoolean(Object _object,
                                 long _offset)

getLong

public static long getLong(Object _object,
                           long _offset)

putBoolean

public static void putBoolean(Object _object,
                              long _offset,
                              boolean _boolean)

putFloat

public static void putFloat(Object _object,
                            long _offset,
                            float _float)

putInt

public static void putInt(Object _object,
                          long _offset,
                          int _int)

putDouble

public static void putDouble(Object _object,
                             long _offset,
                             double _double)

putByte

public static void putByte(Object _object,
                           long _offset,
                           byte _byte)

putLong

public static void putLong(Object _object,
                           long _offset,
                           long _long)

objectFieldOffset

public static long objectFieldOffset(Field _field)