raboof/pekko
1
0
Fork 0
Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 10

Removing the Atomic*Updaters from MessageDispatcher, switching to Unsafe all the way baby

Browse source
This commit is contained in:
Viktor Klang 2012-05-11 15:00:37 +02:00
parent 0879c0e545
commit db3ce87917
2 changed files with 43 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

18
akka-actor/src/main/java/akka/dispatch/AbstractMessageDispatcher.java
View file

@ -4,15 +4,21 @@
package akka.dispatch;
import akka.util.Unsafe;
import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
abstract class AbstractMessageDispatcher {
private volatile int _shutdownSchedule; // not initialized because this is faster: 0 == UNSCHEDULED
protected final static AtomicIntegerFieldUpdater<AbstractMessageDispatcher> shutdownScheduleUpdater =
AtomicIntegerFieldUpdater.newUpdater(AbstractMessageDispatcher.class, "_shutdownSchedule");
final static long shutdownScheduleOffset;
final static long inhabitantsOffset;
private volatile long _inhabitants; // not initialized because this is faster
protected final static AtomicLongFieldUpdater<AbstractMessageDispatcher> inhabitantsUpdater =
AtomicLongFieldUpdater.newUpdater(AbstractMessageDispatcher.class, "_inhabitants");
static {
try {
shutdownScheduleOffset = Unsafe.instance.objectFieldOffset(MessageDispatcher.class.getDeclaredField("_shutdownScheduleDoNotCallMeDirectly"));
inhabitantsOffset = Unsafe.instance.objectFieldOffset(MessageDispatcher.class.getDeclaredField("_inhabitantsDoNotCallMeDirectly"));
} catch(Throwable t){
throw new ExceptionInInitializerError(t);
}
}
}