org.jikesrvm.compilers.opt.runtimesupport

Class CodePatchSyncRequestVisitor

java.lang.Object

org.jikesrvm.scheduler.RVMThread.SoftHandshakeVisitor

org.jikesrvm.compilers.opt.runtimesupport.CodePatchSyncRequestVisitor

class CodePatchSyncRequestVisitor
extends RVMThread.SoftHandshakeVisitor

A visitor that is used to request synchronization of processor caches after code patching has taken place.

Garbage collection threads are exempt from the need to respond to soft handshakes in the current implementation. This is safe because garbage collection threads will never be executing code that is subject to code patching. (We don't allow speculative optimization of uninterruptible code).

Constructor Summary

Constructors

Constructor and Description
CodePatchSyncRequestVisitor()

Method Summary

Modifier and Type	Method and Description
boolean	checkAndSignal(RVMThread t) Signals the given thread to sync for code patching.

Methods inherited from class org.jikesrvm.scheduler.RVMThread.SoftHandshakeVisitor

includeThread, notifyStuckInNative

Methods inherited from class java.lang.Object

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

Constructor Detail

CodePatchSyncRequestVisitor

CodePatchSyncRequestVisitor()

Method Detail

checkAndSignal

public boolean checkAndSignal(RVMThread t)

Signals the given thread to sync for code patching.

Specified by:

checkAndSignal in class RVMThread.SoftHandshakeVisitor

Parameters:

t - the thread that will be processed

Returns:

true because this visitor is interested in all mutator threads