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org.netbeans.lib.profiler.heap.HprofHeap Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2012 Oracle and/or its affiliates. All rights reserved.
*
* Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common
* Development and Distribution License("CDDL") (collectively, the
* "License"). You may not use this file except in compliance with the
* License. You can obtain a copy of the License at
* http://www.netbeans.org/cddl-gplv2.html
* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
* specific language governing permissions and limitations under the
* License. When distributing the software, include this License Header
* Notice in each file and include the License file at
* nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the
* License Header, with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Contributor(s):
* The Original Software is NetBeans. The Initial Developer of the Original
* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
* Microsystems, Inc. All Rights Reserved.
*
* If you wish your version of this file to be governed by only the CDDL
* or only the GPL Version 2, indicate your decision by adding
* "[Contributor] elects to include this software in this distribution
* under the [CDDL or GPL Version 2] license." If you do not indicate a
* single choice of license, a recipient has the option to distribute
* your version of this file under either the CDDL, the GPL Version 2 or
* to extend the choice of license to its licensees as provided above.
* However, if you add GPL Version 2 code and therefore, elected the GPL
* Version 2 license, then the option applies only if the new code is
* made subject to such option by the copyright holder.
*/
package org.netbeans.lib.profiler.heap;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.netbeans.lib.profiler.heap.LongMap.Entry;
/**
*
* @author Tomas Hurka
*/
class HprofHeap implements Heap {
//~ Static fields/initializers -----------------------------------------------------------------------------------------------
// dump tags
static final int STRING = 1;
static final int LOAD_CLASS = 2;
static final int UNLOAD_CLASS = 3;
static final int STACK_FRAME = 4;
static final int STACK_TRACE = 5;
static final int ALLOC_SITES = 6;
static final int HEAP_SUMMARY = 7;
static final int START_THREAD = 0xa;
static final int END_THREAD = 0xb;
static final int HEAP_DUMP = 0xc;
static final int HEAP_DUMP_SEGMENT = 0x1c;
static final int HEAP_DUMP_END = 0x2c;
static final int CPU_SAMPLES = 0xd;
static final int CONTROL_SETTINGS = 0xe;
// heap dump tags
static final int ROOT_UNKNOWN = 0xff;
static final int ROOT_JNI_GLOBAL = 1;
static final int ROOT_JNI_LOCAL = 2;
static final int ROOT_JAVA_FRAME = 3;
static final int ROOT_NATIVE_STACK = 4;
static final int ROOT_STICKY_CLASS = 5;
static final int ROOT_THREAD_BLOCK = 6;
static final int ROOT_MONITOR_USED = 7;
static final int ROOT_THREAD_OBJECT = 8;
static final int CLASS_DUMP = 0x20;
static final int INSTANCE_DUMP = 0x21;
static final int OBJECT_ARRAY_DUMP = 0x22;
static final int PRIMITIVE_ARRAY_DUMP = 0x23;
// basic type
static final int OBJECT = 2;
static final int BOOLEAN = 4;
static final int CHAR = 5;
static final int FLOAT = 6;
static final int DOUBLE = 7;
static final int BYTE = 8;
static final int SHORT = 9;
static final int INT = 10;
static final int LONG = 11;
private static final boolean DEBUG = false;
//~ Instance fields ----------------------------------------------------------------------------------------------------------
HprofByteBuffer dumpBuffer;
LongMap idToOffsetMap;
private NearestGCRoot nearestGCRoot;
private ComputedSummary computedSummary;
private Map gcRoots;
private DominatorTree domTree;
final private Object gcRootLock = new Object();
private TagBounds allInstanceDumpBounds;
private TagBounds heapDumpSegment;
private TagBounds[] heapTagBounds;
private TagBounds[] tagBounds = new TagBounds[0xff];
private boolean instancesCountComputed;
private boolean referencesComputed;
private boolean retainedSizeComputed;
private boolean retainedSizeByClassComputed;
private int idMapSize;
private int segment;
//~ Constructors -------------------------------------------------------------------------------------------------------------
HprofHeap(File dumpFile, int seg) throws FileNotFoundException, IOException {
dumpBuffer = HeapFactory.createHprofByteBuffer(dumpFile, HeapFactory.DEFAULT_BUFFER);
segment = seg;
fillTagBounds(dumpBuffer.getHeaderSize());
heapDumpSegment = computeHeapDumpStart();
if (heapDumpSegment != null) {
fillHeapTagBounds();
}
idToOffsetMap = initIdMap();
nearestGCRoot = new NearestGCRoot(this);
}
HprofHeap(HprofByteBuffer buffer, int seg) throws FileNotFoundException, IOException {
dumpBuffer = buffer;
segment = seg;
fillTagBounds(dumpBuffer.getHeaderSize());
heapDumpSegment = computeHeapDumpStart();
if (heapDumpSegment != null) {
fillHeapTagBounds();
}
idToOffsetMap = initIdMap();
nearestGCRoot = new NearestGCRoot(this);
}
protected LongMap initIdMap() throws FileNotFoundException, IOException {
return new LongMap(idMapSize,dumpBuffer.getIDSize(),dumpBuffer.getFoffsetSize());
}
//~ Methods ------------------------------------------------------------------------------------------------------------------
public List getAllClasses() {
ClassDumpSegment classDumpBounds;
if (heapDumpSegment == null) {
return Collections.emptyList();
}
classDumpBounds = getClassDumpSegment();
if (classDumpBounds == null) {
return Collections.emptyList();
}
return classDumpBounds.createClassCollection();
}
@Override
public Iterable getAllInstances() {
// ensure class metadata is initialized
getAllClasses();
return new HprofInstanceIterator.AsIterable(this);
}
@Override
public Iterable getAllInstances(long instanceID) {
return new HprofInstanceIterator.AsIterable(this);
}
public List getBiggestObjectsByRetainedSize(int number) {
long[] ids;
List bigObjects = new ArrayList(number);
computeRetainedSize();
ids = idToOffsetMap.getBiggestObjectsByRetainedSize(number);
for (int i=0;i getGCRoots() {
synchronized (gcRootLock) {
if (heapDumpSegment == null) {
return Collections.emptyList();
}
if (gcRoots == null) {
gcRoots = computeGCRootsFor(heapTagBounds[ROOT_UNKNOWN]);
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_JNI_GLOBAL]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_JNI_LOCAL]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_JAVA_FRAME]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_NATIVE_STACK]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_STICKY_CLASS]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_THREAD_BLOCK]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_MONITOR_USED]));
gcRoots.putAll(computeGCRootsFor(heapTagBounds[ROOT_THREAD_OBJECT]));
}
return gcRoots.values();
}
}
public Instance getInstanceByID(long instanceID) {
if (instanceID == 0L) {
return null;
}
computeInstances();
ClassDump classDump;
ClassDumpSegment classDumpBounds = getClassDumpSegment();
int idSize = dumpBuffer.getIDSize();
int classIdOffset = 0;
LongMap.Entry entry = idToOffsetMap.get(instanceID);
if (entry == null) {
return null;
}
long start = entry.getOffset();
assert start != 0L;
long[] offset = new long[] { start };
int tag = readDumpTag(offset);
if (tag == INSTANCE_DUMP) {
classIdOffset = idSize + 4;
} else if (tag == OBJECT_ARRAY_DUMP) {
classIdOffset = idSize + 4 + 4;
} else if (tag == PRIMITIVE_ARRAY_DUMP) {
classIdOffset = idSize + 4 + 4;
}
if (tag == PRIMITIVE_ARRAY_DUMP) {
classDump = classDumpBounds.getPrimitiveArrayClass(dumpBuffer.get(start + 1 + classIdOffset));
return new PrimitiveArrayDump(classDump, start);
} else {
long classId = dumpBuffer.getID(start + 1 + classIdOffset);
classDump = classDumpBounds.getClassDumpByID(classId);
}
if (tag == INSTANCE_DUMP) {
return new InstanceDump(classDump, start);
} else if (tag == OBJECT_ARRAY_DUMP) {
return new ObjectArrayDump(classDump, start);
} else if (tag == CLASS_DUMP) {
return new ClassDumpInstance(classDump);
} else {
throw new IllegalArgumentException("Illegal tag " + tag); // NOI18N
}
}
public JavaClass getJavaClassByID(long javaclassId) {
return getClassDumpSegment().getClassDumpByID(javaclassId);
}
public JavaClass getJavaClassByName(String fqn) {
if (heapDumpSegment == null) {
return null;
}
return getClassDumpSegment().getJavaClassByName(fqn);
}
public Collection getJavaClassesByRegExp(String regexp) {
if (heapDumpSegment == null) {
return Collections.emptyList();
}
return getClassDumpSegment().getJavaClassesByRegExp(regexp);
}
public synchronized HeapSummary getSummary() {
TagBounds summaryBound = tagBounds[HEAP_SUMMARY];
if (summaryBound != null) {
return new Summary(dumpBuffer, summaryBound.startOffset);
}
if (computedSummary == null) {
computedSummary = new ComputedSummary(this);
}
return computedSummary;
}
public synchronized boolean hasSummary() {
TagBounds summaryBound = tagBounds[HEAP_SUMMARY];
if (summaryBound != null) {
return true;
}
else {
return false;
}
}
public Properties getSystemProperties() {
JavaClass systemClass = getJavaClassByName("java.lang.System"); // NOI18N
if (systemClass != null) {
Instance props = (Instance) systemClass.getValueOfStaticField("props"); //NOI18N
if (props == null) {
props = (Instance) systemClass.getValueOfStaticField("systemProperties"); //NOI18N
}
if (props != null) {
return HprofProxy.getProperties(props);
}
}
return null;
}
ClassDumpSegment getClassDumpSegment() {
return (ClassDumpSegment) heapTagBounds[CLASS_DUMP];
}
LoadClassSegment getLoadClassSegment() {
return (LoadClassSegment) tagBounds[LOAD_CLASS];
}
StringSegment getStringSegment() {
return (StringSegment) tagBounds[STRING];
}
StackTraceSegment getStackTraceSegment() {
return (StackTraceSegment) tagBounds[STACK_TRACE];
}
StackFrameSegment getStackFrameSegment() {
return (StackFrameSegment) tagBounds[STACK_FRAME];
}
TagBounds getAllInstanceDumpBounds() {
return allInstanceDumpBounds;
}
long getRetainedSize(Instance instance) {
computeRetainedSize();
return idToOffsetMap.get(instance.getInstanceId()).getRetainedSize();
}
GCRoot getGCRoot(Long instanceId) {
synchronized (gcRootLock) {
if (gcRoots == null) {
getGCRoots();
}
return (GCRoot) gcRoots.get(instanceId);
}
}
boolean eagerInstanceCounting() {
return false;
}
int idToInstanceNumber(long instanceId) {
Entry entry = idToOffsetMap.get(instanceId);
return entry == null ? 0 : entry.getIndex();
}
long idToDumpOffset(long instanceId) {
Entry entry = idToOffsetMap.get(instanceId);
return entry == null ? 0 : entry.getOffset();
}
void addClassEntry(long instanceId, long offset, int index) {
LongMap.Entry entry = idToOffsetMap.put(instanceId, offset);
entry.setIndex(index);
}
int getValueSize(final byte type) {
switch (type) {
case HprofHeap.OBJECT:
return dumpBuffer.getIDSize();
case HprofHeap.BOOLEAN:
return 1;
case HprofHeap.CHAR:
return 2;
case HprofHeap.FLOAT:
return 4;
case HprofHeap.DOUBLE:
return 8;
case HprofHeap.BYTE:
return 1;
case HprofHeap.SHORT:
return 2;
case HprofHeap.INT:
return 4;
case HprofHeap.LONG:
return 8;
default:
throw new IllegalArgumentException("Invalid type " + type); // NOI18N
}
}
synchronized void computeInstances() {
if (instancesCountComputed) {
return;
}
ClassDumpSegment classDumpBounds = getClassDumpSegment();
int idSize = dumpBuffer.getIDSize();
long[] offset = new long[] { allInstanceDumpBounds.startOffset };
Map classIdToClassMap = classDumpBounds.getClassIdToClassMap();
for (long counter = 0; offset[0] < allInstanceDumpBounds.endOffset; counter++) {
int classIdOffset = 0;
int instanceIdOffset = 0;
ClassDump classDump = null;
long start = offset[0];
int tag = readDumpTag(offset);
LongMap.Entry instanceEntry = null;
if (tag == INSTANCE_DUMP) {
instanceIdOffset = 1;
classIdOffset = idSize + 4;
} else if (tag == OBJECT_ARRAY_DUMP) {
instanceIdOffset = 1;
classIdOffset = idSize + 4 + 4;
} else if (tag == PRIMITIVE_ARRAY_DUMP) {
byte type = dumpBuffer.get(start + 1 + idSize + 4 + 4);
instanceIdOffset = 1;
classDump = classDumpBounds.getPrimitiveArrayClass(type);
}
if (instanceIdOffset != 0) {
long instanceId = dumpBuffer.getID(start + instanceIdOffset);
instanceEntry = idToOffsetMap.put(instanceId, start);
}
if (classIdOffset != 0) {
long classId = dumpBuffer.getID(start + 1 + classIdOffset);
classDump = (ClassDump) classIdToClassMap.get(new Long(classId));
}
if (classDump != null) {
classDump.registerInstance(start);
instanceEntry.setIndex(classDump.getInstancesCount());
classDumpBounds.addInstanceSize(classDump, tag, start);
}
HeapProgress.progress(counter,allInstanceDumpBounds.startOffset,start,allInstanceDumpBounds.endOffset);
}
HeapProgress.progressFinish();
instancesCountComputed = true;
}
List findReferencesFor(long instanceId) {
assert instanceId != 0L : "InstanceID is null";
computeReferences();
List refs = new ArrayList();
List refIds = idToOffsetMap.get(instanceId).getReferences();
Iterator refIdsIt = refIds.iterator();
int idSize = dumpBuffer.getIDSize();
ClassDumpSegment classDumpBounds = getClassDumpSegment();
long[] offset = new long[1];
while (refIdsIt.hasNext()) {
long foundInstanceId = refIdsIt.next();
offset[0] = idToOffsetMap.get(foundInstanceId).getOffset();
@SuppressWarnings("unused")
int classIdOffset = 0;
@SuppressWarnings("unused")
int instanceIdOffset = 0;
long start = offset[0];
int tag = readDumpTag(offset);
if (tag == INSTANCE_DUMP) {
classIdOffset = idSize + 4;
int size = dumpBuffer.getInt(start + 1 + idSize + 4 + idSize);
byte[] fields = new byte[size];
dumpBuffer.get(start + 1 + idSize + 4 + idSize + 4, fields);
long classId = dumpBuffer.getID(start + 1 + idSize + 4);
ClassDump classDump = classDumpBounds.getClassDumpByID(classId);
InstanceDump instance = new InstanceDump(classDump, start);
Iterator fieldIt = instance.getFieldValues().iterator();
while (fieldIt.hasNext()) {
Object field = fieldIt.next();
if (field instanceof HprofInstanceObjectValue) {
HprofInstanceObjectValue objectValue = (HprofInstanceObjectValue) field;
if (objectValue.getInstanceId() == instanceId) {
refs.add(objectValue);
}
}
}
if (refs.isEmpty() && classId == instanceId) {
SyntheticClassField syntheticClassField = new SyntheticClassField(classDump);
long fieldOffset = start + 1 + dumpBuffer.getIDSize() + 4;
refs.add(new SyntheticClassObjectValue(instance,syntheticClassField,fieldOffset));
}
} else if (tag == OBJECT_ARRAY_DUMP) {
int elements = dumpBuffer.getInt(start + 1 + idSize + 4);
int i;
long position = start + 1 + idSize + 4 + 4 + idSize;
for (i = 0; i < elements; i++, position += idSize) {
if (dumpBuffer.getID(position) == instanceId) {
long classId = dumpBuffer.getID(start + 1 + idSize + 4 + 4);
ClassDump classDump = classDumpBounds.getClassDumpByID(classId);
refs.add(new HprofArrayValue(classDump, start, i));
}
}
} else if (tag == CLASS_DUMP) {
ClassDump cls = classDumpBounds.getClassDumpByID(foundInstanceId);
cls.findStaticReferencesFor(instanceId, refs);
}
}
return refs;
}
synchronized void computeReferences() {
if (referencesComputed) {
return;
}
ClassDumpSegment classDumpBounds = getClassDumpSegment();
int idSize = dumpBuffer.getIDSize();
long[] offset = new long[] { allInstanceDumpBounds.startOffset };
Map classIdToClassMap = classDumpBounds.getClassIdToClassMap();
computeInstances();
for (long counter=0; offset[0] < allInstanceDumpBounds.endOffset; counter++) {
long start = offset[0];
int tag = readDumpTag(offset);
if (tag == INSTANCE_DUMP) {
long classId = dumpBuffer.getID(start+1+idSize+4);
ClassDump classDump = (ClassDump) classIdToClassMap.get(new Long(classId));
long instanceId = dumpBuffer.getID(start+1);
long inOff = start+1+idSize+4+idSize+4;
List fields = classDump.getAllInstanceFields();
Iterator fit = fields.iterator();
while(fit.hasNext()) {
HprofField field = (HprofField) fit.next();
if (field.getValueType() == HprofHeap.OBJECT) {
long outId = dumpBuffer.getID(inOff);
if (outId != 0) {
LongMap.Entry entry = idToOffsetMap.get(outId);
if (entry != null) {
entry.addReference(instanceId);
} else {
// System.err.println("instance entry:" + Long.toHexString(outId));
}
}
}
inOff += field.getValueSize();
}
} else if (tag == OBJECT_ARRAY_DUMP) {
long instanceId = dumpBuffer.getID(start+1);
int elements = dumpBuffer.getInt(start+1+idSize+4);
long position = start+1+idSize+4+4+idSize;
for(int i=0;i classesIt = getClassDumpSegment().createClassCollection().iterator();
while (classesIt.hasNext()) {
ClassDump classDump = (ClassDump)classesIt.next();
List fields = classDump.getStaticFieldValues();
Iterator fit = fields.iterator();
while(fit.hasNext()) {
Object field = fit.next();
if (field instanceof HprofFieldObjectValue) {
long outId = ((HprofFieldObjectValue)field).getInstanceId();
if (outId != 0) {
LongMap.Entry entry = idToOffsetMap.get(outId);
if (entry == null) {
// System.err.println("instance entry:" + Long.toHexString(outId));
continue;
}
entry.addReference(classDump.getJavaClassId());
}
}
}
}
idToOffsetMap.flush();
HeapProgress.progressFinish();
referencesComputed = true;
}
synchronized void computeRetainedSize() {
if (retainedSizeComputed) {
return;
}
new TreeObject(this,nearestGCRoot.getLeaves()).computeTrees();
domTree = new DominatorTree(this,nearestGCRoot.getMultipleParents());
domTree.computeDominators();
long[] offset = new long[] { allInstanceDumpBounds.startOffset };
while (offset[0] < allInstanceDumpBounds.endOffset) {
int instanceIdOffset = 0;
long start = offset[0];
int tag = readDumpTag(offset);
if (tag == INSTANCE_DUMP) {
instanceIdOffset = 1;
} else if (tag == OBJECT_ARRAY_DUMP) {
instanceIdOffset = 1;
} else if (tag == PRIMITIVE_ARRAY_DUMP) {
instanceIdOffset = 1;
} else {
continue;
}
long instanceId = dumpBuffer.getID(start + instanceIdOffset);
LongMap.Entry instanceEntry = idToOffsetMap.get(instanceId);
long idom = domTree.getIdomId(instanceId,instanceEntry);
boolean isTreeObj = instanceEntry.isTreeObj();
long instSize = 0;
if (!isTreeObj && (instanceEntry.getNearestGCRootPointer() != 0 || getGCRoot(new Long(instanceId)) != null)) {
long origSize = instanceEntry.getRetainedSize();
if (origSize < 0) origSize = 0;
instSize = getInstanceByID(instanceId).getSize();
instanceEntry.setRetainedSize(origSize + instSize);
}
if (idom != 0) {
long size;
LongMap.Entry entry;
if (isTreeObj) {
size = instanceEntry.getRetainedSize();
} else {
assert instSize != 0;
size = instSize;
}
for (;idom!=0;idom=domTree.getIdomId(idom,entry)) {
entry = idToOffsetMap.get(idom);
if (entry.isTreeObj()) {
break;
}
long retainedSize = entry.getRetainedSize();
if (retainedSize < 0) retainedSize = 0;
entry.setRetainedSize(retainedSize+size);
}
}
}
retainedSizeComputed = true;
}
synchronized void computeRetainedSizeByClass() {
if (retainedSizeByClassComputed) {
return;
}
computeRetainedSize();
long[] offset = new long[] { allInstanceDumpBounds.startOffset };
while (offset[0] < allInstanceDumpBounds.endOffset) {
int instanceIdOffset = 0;
long start = offset[0];
int tag = readDumpTag(offset);
if (tag == INSTANCE_DUMP) {
instanceIdOffset = 1;
} else if (tag == OBJECT_ARRAY_DUMP) {
instanceIdOffset = 1;
} else if (tag == PRIMITIVE_ARRAY_DUMP) {
instanceIdOffset = 1;
} else {
continue;
}
long instanceId = dumpBuffer.getID(start + instanceIdOffset);
Instance i = getInstanceByID(instanceId);
ClassDump javaClass = (ClassDump) i.getJavaClass();
if (javaClass != null && !domTree.hasInstanceInChain(tag, i)) {
javaClass.addSizeForInstance(i);
}
}
// all done, release domTree
domTree = null;
retainedSizeByClassComputed = true;
}
synchronized Instance getNearestGCRootPointer(Instance instance) {
return nearestGCRoot.getNearestGCRootPointer(instance);
}
int readDumpTag(long[] offset) {
long position = offset[0];
int dumpTag = dumpBuffer.get(position++);
long size = 0;
long tagOffset = position;
int idSize = dumpBuffer.getIDSize();
switch (dumpTag) {
case -1:
case ROOT_UNKNOWN:
if (DEBUG) {
System.out.println("Tag ROOT_UNKNOWN"); // NOI18N
}
size = idSize;
dumpTag = ROOT_UNKNOWN;
break;
case ROOT_JNI_GLOBAL:
if (DEBUG) {
System.out.println("Tag ROOT_JNI_GLOBAL"); // NOI18N
}
size = 2 * idSize;
break;
case ROOT_JNI_LOCAL: {
if (DEBUG) {
System.out.print("Tag ROOT_JNI_LOCAL"); // NOI18N
long objId = dumpBuffer.getID(position);
position += idSize;
int threadSerial = dumpBuffer.getInt(position);
position += 4;
int frameNum = dumpBuffer.getInt(position);
position += 4;
System.out.println(" Object ID " + objId + " Thread serial " + threadSerial + " Frame num " + frameNum); // NOI18N
}
size = idSize + (2 * 4);
break;
}
case ROOT_JAVA_FRAME:
if (DEBUG) {
System.out.println("Tag ROOT_JAVA_FRAME"); // NOI18N
int threadSerial = dumpBuffer.getInt(position);
position += 4;
int frameNum = dumpBuffer.getInt(position);
position += 4;
System.out.println(" Thread serial " + threadSerial + " Frame num " + frameNum); // NOI18N
}
size = idSize + (2 * 4);
break;
case ROOT_NATIVE_STACK:
if (DEBUG) {
System.out.println("Tag ROOT_NATIVE_STACK"); // NOI18N
}
size = idSize + 4;
break;
case ROOT_STICKY_CLASS:
if (DEBUG) {
System.out.println("Tag ROOT_STICKY_CLASS"); // NOI18N
}
size = idSize;
break;
case ROOT_THREAD_BLOCK:
if (DEBUG) {
System.out.println("Tag ROOT_THREAD_BLOCK"); // NOI18N
}
size = idSize + 4;
break;
case ROOT_MONITOR_USED:
if (DEBUG) {
System.out.println("Tag ROOT_MONITOR_USED"); // NOI18N
}
size = idSize;
break;
case ROOT_THREAD_OBJECT:
if (DEBUG) {
System.out.println("Tag ROOT_THREAD_OBJECT"); // NOI18N
}
size = idSize + (2 * 4);
break;
case CLASS_DUMP: {
int constantSize = idSize + 4 + (6 * idSize) + 4;
int cpoolSize;
int sfSize;
int ifSize;
if (DEBUG) {
System.out.println("Tag CLASS_DUMP, start offset " + tagOffset); // NOI18N
long classId = dumpBuffer.getID(position);
position += idSize;
int stackSerial = dumpBuffer.getInt(position);
position += 4;
long superId = dumpBuffer.getID(position);
position += idSize;
long classLoaderId = dumpBuffer.getID(position);
position += idSize;
long signersId = dumpBuffer.getID(position);
position += idSize;
long protDomainId = dumpBuffer.getID(position);
position += idSize;
dumpBuffer.getID(position);
position += idSize;
dumpBuffer.getID(position);
position += idSize;
int instSize = dumpBuffer.getInt(position);
position += 4;
offset[0] = position;
cpoolSize = readConstantPool(offset);
sfSize = readStaticFields(offset);
ifSize = readInstanceFields(offset);
System.out.println("ClassId " + classId + " stack Serial " + stackSerial + " Super ID " + superId // NOI18N
+ " ClassLoader ID " + classLoaderId + " signers " + signersId + " Protect Dom Id " // NOI18N
+ protDomainId + " Size " + instSize); // NOI18N
System.out.println(" Cpool " + cpoolSize + " Static fields " + sfSize + " Instance fileds " + ifSize); // NOI18N
} else {
offset[0] = position + constantSize;
cpoolSize = readConstantPool(offset);
sfSize = readStaticFields(offset);
ifSize = readInstanceFields(offset);
}
size = constantSize + cpoolSize + sfSize + ifSize;
break;
}
case INSTANCE_DUMP: {
int fieldSize;
if (DEBUG) {
System.out.println("Tag INSTANCE_DUMP"); // NOI18N
long objId = dumpBuffer.getID(position);
position += idSize;
int stackSerial = dumpBuffer.getInt(position);
position += 4;
long classId = dumpBuffer.getID(position);
position += idSize;
fieldSize = dumpBuffer.getInt(position);
position += 4;
System.out.println("Obj ID " + objId + " Stack serial " + stackSerial + " Class ID " + classId
+ " Field size " + fieldSize); // NOI18N
} else {
fieldSize = dumpBuffer.getInt(position + idSize + 4 + idSize);
}
size = idSize + 4 + idSize + 4 + fieldSize;
break;
}
case OBJECT_ARRAY_DUMP: {
long elements;
if (DEBUG) {
System.out.println("Tag OBJECT_ARRAY_DUMP"); // NOI18N
long objId = dumpBuffer.getID(position);
position += idSize;
int stackSerial = dumpBuffer.getInt(position);
position += 4;
elements = dumpBuffer.getInt(position);
position += 4;
long classId = dumpBuffer.getID(position);
position += idSize;
int dataSize = 0;
System.out.println("Obj ID " + objId + " Stack serial " + stackSerial + " Elements " + elements // NOI18N
+ " Type " + classId); // NOI18N
for (int i = 0; i < elements; i++) {
dataSize += dumpBuffer.getIDSize();
System.out.println("Instance ID " + dumpBuffer.getID(position)); // NOI18N
position += idSize;
}
} else {
elements = dumpBuffer.getInt(position + idSize + 4);
}
size = idSize + 4 + 4 + idSize + (elements * idSize);
break;
}
case PRIMITIVE_ARRAY_DUMP: {
long elements;
byte type;
if (DEBUG) {
System.out.println("Tag PRIMITINE_ARRAY_DUMP"); // NOI18N
long objId = dumpBuffer.getID(position);
position += idSize;
int stackSerial = dumpBuffer.getInt(position);
position += 4;
elements = dumpBuffer.getInt(position);
position += 4;
type = dumpBuffer.get(position++);
int dataSize = 0;
System.out.println("Obj ID " + objId + " Stack serial " + stackSerial + " Elements " + elements + " Type " + type); // NOI18N
for (int i = 0; i < elements; i++) {
dataSize += getValueSize(type);
}
} else {
elements = dumpBuffer.getInt(position + idSize + 4);
type = dumpBuffer.get(position + idSize + 4 + 4);
}
size = idSize + 4 + 4 + 1 + (elements * getValueSize(type));
break;
}
case HEAP_DUMP_SEGMENT: { // to handle big dumps
size = 4 + 4;
break;
}
default:throw new IllegalArgumentException("Invalid dump tag " + dumpTag + " at position " + (position - 1)); // NOI18N
}
offset[0] = tagOffset + size;
return dumpTag;
}
int readTag(long[] offset) {
long start = offset[0];
int tag = dumpBuffer.get(start);
//int time = dumpBuffer.getInt(start+1);
long len = dumpBuffer.getInt(start + 1 + 4) & 0xFFFFFFFFL; // len is unsigned int
offset[0] = start + 1 + 4 + 4 + len;
return tag;
}
private Map computeGCRootsFor(TagBounds tagBounds) {
Map roots = new HashMap();
if (tagBounds != null) {
int rootTag = tagBounds.tag;
long[] offset = new long[] { tagBounds.startOffset };
while (offset[0] < tagBounds.endOffset) {
long start = offset[0];
if (readDumpTag(offset) == rootTag) {
HprofGCRoot root;
if (rootTag == ROOT_THREAD_OBJECT) {
root = new ThreadObjectHprofGCRoot(this, start);
} else if (rootTag == ROOT_JAVA_FRAME) {
root = new JavaFrameHprofGCRoot(this, start);
} else {
root = new HprofGCRoot(this, start);
}
roots.put(Long.valueOf(root.getInstanceId()), root);
}
}
}
return roots;
}
private TagBounds computeHeapDumpStart() throws IOException {
TagBounds heapDumpBounds = tagBounds[HEAP_DUMP];
if (heapDumpBounds != null) {
long start = heapDumpBounds.startOffset;
long[] offset = new long[] { start };
for (int i = 0; (i <= segment) && (start < heapDumpBounds.endOffset);) {
int tag = readTag(offset);
if (tag == HEAP_DUMP) {
if (i == segment) {
return new TagBounds(HEAP_DUMP, start, offset[0]);
} else {
i++;
}
}
start = offset[0];
}
throw new IOException("Invalid segment " + segment); // NOI18N
} else {
TagBounds heapDumpSegmentBounds = tagBounds[HEAP_DUMP_SEGMENT];
if (heapDumpSegmentBounds != null) {
long start = heapDumpSegmentBounds.startOffset;
long end = heapDumpSegmentBounds.endOffset;
return new TagBounds(HEAP_DUMP, start, end);
}
}
return null;
}
private void fillHeapTagBounds() {
if (heapTagBounds != null) {
return;
}
heapTagBounds = new TagBounds[0x100];
long[] offset = new long[] { heapDumpSegment.startOffset + 1 + 4 + 4 };
for (long counter=0; offset[0] < heapDumpSegment.endOffset; counter++) {
long start = offset[0];
int tag = readDumpTag(offset);
TagBounds bounds = heapTagBounds[tag];
long end = offset[0];
if (bounds == null) {
TagBounds newBounds;
if (tag == CLASS_DUMP) {
newBounds = new ClassDumpSegment(this, start, end);
} else {
newBounds = new TagBounds(tag, start, end);
}
heapTagBounds[tag] = newBounds;
} else {
bounds.endOffset = end;
}
if ((tag == CLASS_DUMP) || (tag == INSTANCE_DUMP) || (tag == OBJECT_ARRAY_DUMP) || (tag == PRIMITIVE_ARRAY_DUMP)) {
idMapSize++;
}
HeapProgress.progress(counter,heapDumpSegment.startOffset,start,heapDumpSegment.endOffset);
}
TagBounds instanceDumpBounds = heapTagBounds[INSTANCE_DUMP];
TagBounds objArrayDumpBounds = heapTagBounds[OBJECT_ARRAY_DUMP];
TagBounds primArrayDumpBounds = heapTagBounds[PRIMITIVE_ARRAY_DUMP];
allInstanceDumpBounds = instanceDumpBounds.union(objArrayDumpBounds);
allInstanceDumpBounds = allInstanceDumpBounds.union(primArrayDumpBounds);
HeapProgress.progressFinish();
}
private void fillTagBounds(long tagStart) {
long[] offset = new long[] { tagStart };
while (offset[0] < dumpBuffer.capacity()) {
long start = offset[0];
int tag = readTag(offset);
TagBounds bounds = tagBounds[tag];
long end = offset[0];
if (bounds == null) {
TagBounds newBounds;
if (tag == LOAD_CLASS) {
newBounds = new LoadClassSegment(this, start, end);
} else if (tag == STRING) {
newBounds = new StringSegment(this, start, end);
} else if (tag == STACK_TRACE) {
newBounds = new StackTraceSegment(this, start, end);
} else if (tag == STACK_FRAME) {
newBounds = new StackFrameSegment(this, start, end);
} else {
newBounds = new TagBounds(tag, start, end);
}
tagBounds[tag] = newBounds;
} else {
bounds.endOffset = end;
}
}
}
private int readConstantPool(long[] offset) {
long start = offset[0];
int size = dumpBuffer.getShort(start);
offset[0] += 2;
for (int i = 0; i < size; i++) {
offset[0] += 2;
readValue(offset);
}
return (int) (offset[0] - start);
}
private int readInstanceFields(long[] offset) {
long position = offset[0];
int fields = dumpBuffer.getShort(offset[0]);
offset[0] += 2;
if (DEBUG) {
for (int i = 0; i < fields; i++) {
long nameId = dumpBuffer.getID(offset[0]);
offset[0] += dumpBuffer.getIDSize();
byte type = dumpBuffer.get(offset[0]++);
System.out.println("Instance field name ID " + nameId + " Type " + type); // NOI18N
}
} else {
offset[0] += (fields * (dumpBuffer.getIDSize() + 1));
}
return (int) (offset[0] - position);
}
private int readStaticFields(long[] offset) {
long start = offset[0];
int fields = dumpBuffer.getShort(start);
offset[0] += 2;
int idSize = dumpBuffer.getIDSize();
for (int i = 0; i < fields; i++) {
if (DEBUG) {
long nameId = dumpBuffer.getID(offset[0]);
System.out.print("Static field name ID " + nameId + " "); // NOI18N
}
offset[0] += idSize;
@SuppressWarnings("unused")
byte type = readValue(offset);
}
return (int) (offset[0] - start);
}
private byte readValue(long[] offset) {
byte type = dumpBuffer.get(offset[0]++);
offset[0] += getValueSize(type);
return type;
}
}
