pu.pi.util

Class VMSpec

java.lang.Object

pu.pi.util.VMSpec

public class VMSpec
extends java.lang.Object

Author: xiaoxing Date: 13/05/13

Field Summary

Fields

Modifier and Type	Field and Description
static int	headerSize
static int	objectAlignment
static int	referenceSize

Constructor Summary

Constructors

Constructor and Description
VMSpec()

Method Summary

Modifier and Type	Method and Description
static long	addressOf(java.lang.Object o)
static int	align(int addr)
static java.lang.String	display()
static java.lang.instrument.Instrumentation	getInstrumentation()
static sun.misc.Unsafe	getUnsafe()
static void	premain(java.lang.String args, java.lang.instrument.Instrumentation inst)
static void	printAddress(java.lang.Object o)
static int	sizeOfType(java.lang.Class<?> type)

Methods inherited from class java.lang.Object

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

Field Detail

referenceSize

public static final int referenceSize

headerSize

public static final int headerSize

objectAlignment

public static final int objectAlignment

See Also:

Constant Field Values

Constructor Detail

VMSpec

public VMSpec()

Method Detail

getUnsafe

public static sun.misc.Unsafe getUnsafe()

getInstrumentation

public static java.lang.instrument.Instrumentation getInstrumentation()
                                                               throws java.lang.Exception

Throws:

java.lang.Exception

addressOf

public static long addressOf(java.lang.Object o)

printAddress

public static void printAddress(java.lang.Object o)

align

public static int align(int addr)

premain

public static void premain(java.lang.String args,
                           java.lang.instrument.Instrumentation inst)

sizeOfType

public static int sizeOfType(java.lang.Class<?> type)

display

public static java.lang.String display()