28 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.JAVA_THREAD_THREAD_OBJECT_LOCATION;
  29 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.osThreadInterruptedOffset;
  30 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.osThreadOffset;
  31 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.threadObjectOffset;
  32 
  33 import org.graalvm.compiler.api.replacements.ClassSubstitution;
  34 import org.graalvm.compiler.api.replacements.MethodSubstitution;
  35 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;
  36 import org.graalvm.compiler.graph.Node.ConstantNodeParameter;
  37 import org.graalvm.compiler.graph.Node.NodeIntrinsic;
  38 import org.graalvm.compiler.hotspot.nodes.CurrentJavaThreadNode;
  39 import org.graalvm.compiler.nodes.extended.ForeignCallNode;
  40 import org.graalvm.compiler.word.Word;
  41 
  42 /**
  43  * Substitutions for {@link java.lang.Thread} methods.
  44  */
  45 @ClassSubstitution(Thread.class)
  46 public class ThreadSubstitutions {
  47 
  48     @MethodSubstitution(isStatic = false)



  49     public static boolean isInterrupted(final Thread thisObject, boolean clearInterrupted) {
  50         Word javaThread = CurrentJavaThreadNode.get();
  51         Object thread = javaThread.readObject(threadObjectOffset(INJECTED_VMCONFIG), JAVA_THREAD_THREAD_OBJECT_LOCATION);
  52         if (thisObject == thread) {
  53             Word osThread = javaThread.readWord(osThreadOffset(INJECTED_VMCONFIG), JAVA_THREAD_OSTHREAD_LOCATION);
  54             boolean interrupted = osThread.readInt(osThreadInterruptedOffset(INJECTED_VMCONFIG), any()) != 0;
  55             if (!interrupted || !clearInterrupted) {
  56                 return interrupted;
  57             }
  58         }
  59 
  60         return threadIsInterruptedStub(THREAD_IS_INTERRUPTED, thisObject, clearInterrupted);
  61     }
  62 
  63     public static final ForeignCallDescriptor THREAD_IS_INTERRUPTED = new ForeignCallDescriptor("thread_is_interrupted", boolean.class, Thread.class, boolean.class);
  64 
  65     @NodeIntrinsic(ForeignCallNode.class)
  66     private static native boolean threadIsInterruptedStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Thread thread, boolean clearIsInterrupted);
  67 }

  28 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.JAVA_THREAD_THREAD_OBJECT_LOCATION;
  29 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.osThreadInterruptedOffset;
  30 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.osThreadOffset;
  31 import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.threadObjectOffset;
  32 
  33 import org.graalvm.compiler.api.replacements.ClassSubstitution;
  34 import org.graalvm.compiler.api.replacements.MethodSubstitution;
  35 import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor;
  36 import org.graalvm.compiler.graph.Node.ConstantNodeParameter;
  37 import org.graalvm.compiler.graph.Node.NodeIntrinsic;
  38 import org.graalvm.compiler.hotspot.nodes.CurrentJavaThreadNode;
  39 import org.graalvm.compiler.nodes.extended.ForeignCallNode;
  40 import org.graalvm.compiler.word.Word;
  41 
  42 /**
  43  * Substitutions for {@link java.lang.Thread} methods.
  44  */
  45 @ClassSubstitution(Thread.class)
  46 public class ThreadSubstitutions {
  47 
  48     /**
  49      * hidden in 9.
  50      */
  51     @MethodSubstitution(isStatic = false, optional = true)
  52     public static boolean isInterrupted(final Thread thisObject, boolean clearInterrupted) {
  53         Word javaThread = CurrentJavaThreadNode.get();
  54         Object thread = javaThread.readObject(threadObjectOffset(INJECTED_VMCONFIG), JAVA_THREAD_THREAD_OBJECT_LOCATION);
  55         if (thisObject == thread) {
  56             Word osThread = javaThread.readWord(osThreadOffset(INJECTED_VMCONFIG), JAVA_THREAD_OSTHREAD_LOCATION);
  57             boolean interrupted = osThread.readInt(osThreadInterruptedOffset(INJECTED_VMCONFIG), any()) != 0;
  58             if (!interrupted || !clearInterrupted) {
  59                 return interrupted;
  60             }
  61         }
  62 
  63         return threadIsInterruptedStub(THREAD_IS_INTERRUPTED, thisObject, clearInterrupted);
  64     }
  65 
  66     public static final ForeignCallDescriptor THREAD_IS_INTERRUPTED = new ForeignCallDescriptor("thread_is_interrupted", boolean.class, Thread.class, boolean.class);
  67 
  68     @NodeIntrinsic(ForeignCallNode.class)
  69     private static native boolean threadIsInterruptedStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Thread thread, boolean clearIsInterrupted);
  70 }