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JDK 11 jdk.hotspot.agent.jmod - Hotspot Agent Module
JDK 11 jdk.hotspot.agent.jmod is the JMOD file for JDK 11 Hotspot Agent module.
JDK 11 Hotspot Agent module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.hotspot.agent.jmod.
JDK 11 Hotspot Agent module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 Hotspot Agent module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.hotspot.agent.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ sun/jvm/hotspot/runtime/ObjectSynchronizer.java
/* * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * */ package sun.jvm.hotspot.runtime; import java.util.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.utilities.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.types.*; public class ObjectSynchronizer { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { Type type; try { type = db.lookupType("ObjectSynchronizer"); gBlockList = type.getAddressField("gBlockList").getValue(); blockSize = db.lookupIntConstant("ObjectSynchronizer::_BLOCKSIZE").intValue(); defaultCacheLineSize = db.lookupIntConstant("DEFAULT_CACHE_LINE_SIZE").intValue(); } catch (RuntimeException e) { } type = db.lookupType("ObjectMonitor"); objectMonitorTypeSize = type.getSize(); if ((objectMonitorTypeSize % defaultCacheLineSize) != 0) { // sizeof(ObjectMonitor) is not already a multiple of a cache line. // The ObjectMonitor allocation code in ObjectSynchronizer pads each // ObjectMonitor in a block to the next cache line boundary. int needLines = ((int)objectMonitorTypeSize / defaultCacheLineSize) + 1; objectMonitorTypeSize = needLines * defaultCacheLineSize; } } public long identityHashValueFor(Oop obj) { Mark mark = obj.getMark(); if (mark.isUnlocked()) { // FIXME: can not generate marks in debugging system return mark.hash(); } else if (mark.hasMonitor()) { ObjectMonitor monitor = mark.monitor(); Mark temp = monitor.header(); return temp.hash(); } else { if (Assert.ASSERTS_ENABLED) { Assert.that(VM.getVM().isDebugging(), "Can not access displaced header otherwise"); } if (mark.hasDisplacedMarkHelper()) { Mark temp = mark.displacedMarkHelper(); return temp.hash(); } // FIXME: can not do anything else here in debugging system return 0; } } public static Iterator objectMonitorIterator() { if (gBlockList != null) { return new ObjectMonitorIterator(); } else { return null; } } private static class ObjectMonitorIterator implements Iterator { // JVMTI raw monitors are not pointed by gBlockList // and are not included by this Iterator. May add them later. ObjectMonitorIterator() { blockAddr = gBlockList; index = blockSize - 1; block = new ObjectMonitor(blockAddr); } public boolean hasNext() { return (index > 0 || block.freeNext() != null); } public Object next() { Address addr; if (index == 0) { // advance to next block blockAddr = block.freeNext(); if (blockAddr == null) { throw new NoSuchElementException(); } block = new ObjectMonitor(blockAddr); index = blockSize - 1; } addr = blockAddr.addOffsetTo(index*objectMonitorTypeSize); index --; return new ObjectMonitor(addr); } public void remove() { throw new UnsupportedOperationException(); } private ObjectMonitor block; private int index; private Address blockAddr; } private static Address gBlockList; private static int blockSize; private static int defaultCacheLineSize; private static long objectMonitorTypeSize; }
⏎ sun/jvm/hotspot/runtime/ObjectSynchronizer.java
Or download all of them as a single archive file:
File name: jdk.hotspot.agent-11.0.1-src.zip File size: 1243786 bytes Release date: 2018-11-04 Download
⇒ JDK 11 jdk.httpserver.jmod - HTTP Server Module
2020-02-29, 131756👍, 0💬
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