edu.rice.cs.cunit.instrumentors
Class MarkerInlineStrategy

java.lang.Object
  edu.rice.cs.cunit.instrumentors.MarkerInlineStrategy

All Implemented Interfaces:

IInstrumentationStrategy

public class MarkerInlineStrategy
extends java.lang.Object
implements IInstrumentationStrategy

Instrumentation strategy to replace static calls to certain marker methods with inlined bytecode. 1) "invokestatic SyncPointBuffer.monitorEnter" -> "monitorenter". 2) "invokestatic SyncPointBuffer.monitorExit" -> "monitorexit". 3) "invokestatic SyncPointBuffer.isOldThread" -> "invokestatic java/lang/Thread.currentThread; getfield java/lang/Thread.$$$oldThread$$$" 4) "invokestatic SyncPointBuffer.setOldThread" -> "iconst_1; invokestatic java/lang/Thread.currentThread; putfield java/lang/Thread.$$$oldThread$$$"

Author:

Mathias Ricken

Field Summary

private boolean	_addNames True if names still have to be added.
private ReferenceInstruction	_getOldThreadFieldInstr getfield java/lang/Thread.$$$oldThread$$$ instruction.
private GenericInstruction	_iconst_1 iconst_1 instruction.
private ReferenceInstruction	_invokeCurrentThreadInstr invokestatic java/lang/Thread.currentThread()Ljava/lang/Thread; instruction
private GenericInstruction	_monitorEnter monitorenter instruction.
private GenericInstruction	_monitorExit monitorexit instruction.
private ReferenceInstruction	_putOldThreadFieldInstr putfield java/lang/Thread.$$$oldThread$$$ instruction.

Constructor Summary

MarkerInlineStrategy()

Method Summary

private void	addNamesIfNecessary(ClassFile cf) Add names to the constant pool if necessary.
void	done() Instrumentation of all classes is done.
void	instrument(ClassFile cf) Instrument the class.

Methods inherited from class java.lang.Object

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

Field Detail

_monitorEnter

private final GenericInstruction _monitorEnter

monitorenter instruction.

_monitorExit

private final GenericInstruction _monitorExit

monitorexit instruction.

_iconst_1

private final GenericInstruction _iconst_1

iconst_1 instruction.

_getOldThreadFieldInstr

private final ReferenceInstruction _getOldThreadFieldInstr

getfield java/lang/Thread.$$$oldThread$$$ instruction.

_putOldThreadFieldInstr

private final ReferenceInstruction _putOldThreadFieldInstr

putfield java/lang/Thread.$$$oldThread$$$ instruction.

_invokeCurrentThreadInstr

private final ReferenceInstruction _invokeCurrentThreadInstr

invokestatic java/lang/Thread.currentThread()Ljava/lang/Thread; instruction

_addNames

private boolean _addNames

True if names still have to be added.

Constructor Detail

MarkerInlineStrategy

public MarkerInlineStrategy()

Method Detail

instrument

public void instrument(ClassFile cf)

Instrument the class.

Specified by:

instrument in interface IInstrumentationStrategy

Parameters:

cf - class file info

addNamesIfNecessary

private void addNamesIfNecessary(ClassFile cf)

Add names to the constant pool if necessary.

Parameters:

cf - class file

done

public void done()

Instrumentation of all classes is done.

Specified by:

done in interface IInstrumentationStrategy