| /* |
| * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.hotspot.replacements; |
| |
| import static org.graalvm.compiler.core.common.LocationIdentity.any; |
| import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfig.INJECTED_VMCONFIG; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.JAVA_THREAD_OSTHREAD_LOCATION; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.JAVA_THREAD_THREAD_OBJECT_LOCATION; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.osThreadInterruptedOffset; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.osThreadOffset; |
| import static org.graalvm.compiler.hotspot.replacements.HotSpotReplacementsUtil.threadObjectOffset; |
| |
| import org.graalvm.compiler.api.replacements.ClassSubstitution; |
| import org.graalvm.compiler.api.replacements.MethodSubstitution; |
| import org.graalvm.compiler.core.common.spi.ForeignCallDescriptor; |
| import org.graalvm.compiler.graph.Node.ConstantNodeParameter; |
| import org.graalvm.compiler.graph.Node.NodeIntrinsic; |
| import org.graalvm.compiler.hotspot.nodes.CurrentJavaThreadNode; |
| import org.graalvm.compiler.nodes.extended.ForeignCallNode; |
| import org.graalvm.compiler.word.Word; |
| |
| /** |
| * Substitutions for {@link java.lang.Thread} methods. |
| */ |
| @ClassSubstitution(Thread.class) |
| public class ThreadSubstitutions { |
| |
| @MethodSubstitution(isStatic = false) |
| public static boolean isInterrupted(final Thread thisObject, boolean clearInterrupted) { |
| Word javaThread = CurrentJavaThreadNode.get(); |
| Object thread = javaThread.readObject(threadObjectOffset(INJECTED_VMCONFIG), JAVA_THREAD_THREAD_OBJECT_LOCATION); |
| if (thisObject == thread) { |
| Word osThread = javaThread.readWord(osThreadOffset(INJECTED_VMCONFIG), JAVA_THREAD_OSTHREAD_LOCATION); |
| boolean interrupted = osThread.readInt(osThreadInterruptedOffset(INJECTED_VMCONFIG), any()) != 0; |
| if (!interrupted || !clearInterrupted) { |
| return interrupted; |
| } |
| } |
| |
| return threadIsInterruptedStub(THREAD_IS_INTERRUPTED, thisObject, clearInterrupted); |
| } |
| |
| public static final ForeignCallDescriptor THREAD_IS_INTERRUPTED = new ForeignCallDescriptor("thread_is_interrupted", boolean.class, Thread.class, boolean.class); |
| |
| @NodeIntrinsic(ForeignCallNode.class) |
| private static native boolean threadIsInterruptedStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Thread thread, boolean clearIsInterrupted); |
| } |