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8304919: Implementation of Virtual Threads

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Reviewed-by: lmesnik, cjplummer, psandoz, mchung, sspitsyn, jpai
This commit is contained in:
Alan Bateman 2023-04-11 05:49:54 +00:00
parent 39398075b7
commit 2586f36120
205 changed files with 1379 additions and 1342 deletions
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13
src/java.base/share/classes/java/lang/System.java
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@ -89,7 +89,6 @@ import jdk.internal.vm.ThreadContainer;
import jdk.internal.vm.annotation.ForceInline;
import jdk.internal.vm.annotation.IntrinsicCandidate;
import jdk.internal.vm.annotation.Stable;
import jdk.internal.vm.annotation.ChangesCurrentThread;
import sun.nio.fs.DefaultFileSystemProvider;
import sun.reflect.annotation.AnnotationType;
import sun.nio.ch.Interruptible;
@ -2567,17 +2566,9 @@ public final class System {
return Thread.currentCarrierThread();
}
@ChangesCurrentThread
public <V> V executeOnCarrierThread(Callable<V> task) throws Exception {
Thread thread = Thread.currentThread();
if (thread.isVirtual()) {
Thread carrier = Thread.currentCarrierThread();
carrier.setCurrentThread(carrier);
try {
return task.call();
} finally {
carrier.setCurrentThread(thread);
}
if (Thread.currentThread() instanceof VirtualThread vthread) {
return vthread.executeOnCarrierThread(task);
} else {
return task.call();
}