Members/kono/jpf-core: src/main/gov/nasa/jpf/vm/GenericHeap.java annotate

author	Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date	Fri, 23 Jan 2015 10:14:01 -0800
parents
children

rev	line source
0 61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	1 /*
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	2 * Copyright (C) 2014, United States Government, as represented by the
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	3 * Administrator of the National Aeronautics and Space Administration.
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	4 * All rights reserved.
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	5 *
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	6 * The Java Pathfinder core (jpf-core) platform is licensed under the
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	7 * Apache License, Version 2.0 (the "License"); you may not use this file except
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	8 * in compliance with the License. You may obtain a copy of the License at
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	9 *
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	10 * http://www.apache.org/licenses/LICENSE-2.0.
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	11 *
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	12 * Unless required by applicable law or agreed to in writing, software
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	13 * distributed under the License is distributed on an "AS IS" BASIS,
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	15 * See the License for the specific language governing permissions and
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	16 * limitations under the License.
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	17 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	18
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	19 package gov.nasa.jpf.vm;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	20
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	21 import java.util.ArrayList;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	22 import java.util.HashMap;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	23 import java.util.Iterator;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	24 import java.util.Map;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	25
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	26 import gov.nasa.jpf.Config;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	27 import gov.nasa.jpf.JPFException;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	28 import gov.nasa.jpf.util.ArrayObjectQueue;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	29 import gov.nasa.jpf.util.IntTable;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	30 import gov.nasa.jpf.util.IntVector;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	31 import gov.nasa.jpf.util.ObjectQueue;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	32 import gov.nasa.jpf.util.Processor;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	33
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	34 /**
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	35 * this is an abstract root for Heap implementations, providing a standard
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	36 * mark&sweep collector, change attribute management, and generic pinDownList,
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	37 * weakReference and internString handling
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	38 *
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	39 * The concrete Heap implementors have to provide the ElementInfo collection
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	40 * and associated getters, allocators and iterators
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	41 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	42 public abstract class GenericHeap implements Heap, Iterable<ElementInfo> {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	43
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	44 static abstract class GenericHeapMemento implements Memento<Heap> {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	45 // those can be simply copied
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	46 int attributes;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	47 IntVector pinDownList;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	48 Map<Integer,IntTable<String>> internStringsMap;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	49
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	50 protected GenericHeapMemento (GenericHeap heap){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	51 // these are copy-on-first-write, so we don't have to clone
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	52 pinDownList = heap.pinDownList;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	53 internStringsMap = heap.internStringsMap;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	54 attributes = heap.attributes & ATTR_STORE_MASK;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	55
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	56 heap.setStored();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	57 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	58
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	59 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	60 public Heap restore (Heap inSitu) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	61 GenericHeap heap = (GenericHeap) inSitu;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	62 heap.pinDownList = pinDownList;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	63 heap.internStringsMap = internStringsMap;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	64 heap.attributes = attributes;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	65 heap.liveBitValue = false; // always start with false after a restore
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	66 return inSitu;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	67 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	68 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	69
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	70
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	71 protected class ElementInfoMarker implements Processor<ElementInfo>{
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	72 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	73 public void process (ElementInfo ei) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	74 ei.markRecursive( GenericHeap.this); // this might in turn call queueMark
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	75 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	76 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	77
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	78 protected VM vm;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	79
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	80 // list of pinned down references (this is only efficient for a small number of objects)
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	81 // this is copy-on-first-write
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	82 protected IntVector pinDownList;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	83
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	84 // interned Strings
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	85 // this is copy-on-first-write, it is created on demand upon adding the first interned string,
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	86 // and it includes IntTable per process.
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	87 protected Map<Integer,IntTable<String>> internStringsMap;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	88
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	89 // the usual drill - the lower 2 bytes are sticky, the upper two ones
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	90 // hold change status and transient (transition local) flags
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	91 protected int attributes;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	92
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	93 static final int ATTR_GC = 0x0001;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	94 static final int ATTR_OUT_OF_MEMORY = 0x0002;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	95 static final int ATTR_RUN_FINALIZER = 0x0004;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	96
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	97 static final int ATTR_ELEMENTS_CHANGED = 0x10000;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	98 static final int ATTR_PINDOWN_CHANGED = 0x20000;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	99 static final int ATTR_INTERN_CHANGED = 0x40000;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	100 static final int ATTR_ATTRIBUTE_CHANGED = 0x80000;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	101
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	102 // masks and sets
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	103 static final int ATTR_STORE_MASK = 0x0000ffff;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	104 static final int ATTR_ANY_CHANGED = (ATTR_ELEMENTS_CHANGED \| ATTR_PINDOWN_CHANGED \| ATTR_INTERN_CHANGED \| ATTR_ATTRIBUTE_CHANGED);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	105
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	106
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	107 //--- these objects are only used during gc
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	108
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	109 // used to keep track of marked WeakRefs that might have to be updated (no need to restore, only transient use during gc)
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	110 protected ArrayList<ElementInfo> weakRefs;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	111
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	112 protected ObjectQueue<ElementInfo> markQueue = new ArrayObjectQueue<ElementInfo>();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	113
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	114 // this is set to false upon backtrack/restore
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	115 protected boolean liveBitValue;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	116
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	117 protected ElementInfoMarker elementInfoMarker = new ElementInfoMarker();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	118
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	119 // the number of live objects
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	120 // <2do> currently only defined after gc
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	121 protected int nLiveObjects;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	122
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	123 //--- constructors
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	124
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	125 public GenericHeap (Config config, KernelState ks){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	126 vm = VM.getVM();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	127
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	128 pinDownList = new IntVector(256);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	129 attributes \|= ATTR_PINDOWN_CHANGED; // no need to clone on next add
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	130
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	131 if (config.getBoolean("vm.finalize", true)){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	132 attributes \|= ATTR_RUN_FINALIZER;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	133 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	134
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	135 if (config.getBoolean("vm.sweep",true)){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	136 attributes \|= ATTR_GC;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	137 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	138 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	139
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	140
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	141 protected DynamicElementInfo createElementInfo (int objref, ClassInfo ci, Fields f, Monitor m, ThreadInfo ti){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	142 return new DynamicElementInfo( objref,ci,f,m,ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	143 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	144
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	145 //--- pinDown handling
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	146 protected void addToPinDownList (int objref){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	147 if ((attributes & ATTR_PINDOWN_CHANGED) == 0) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	148 pinDownList = pinDownList.clone();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	149 attributes \|= ATTR_PINDOWN_CHANGED;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	150 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	151 pinDownList.add(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	152 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	153
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	154 protected void removeFromPinDownList (int objref){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	155 if ((attributes & ATTR_PINDOWN_CHANGED) == 0) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	156 pinDownList = pinDownList.clone();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	157 attributes \|= ATTR_PINDOWN_CHANGED;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	158 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	159 pinDownList.removeFirst(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	160 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	161
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	162 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	163 public void registerPinDown(int objref){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	164 ElementInfo ei = getModifiable(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	165 if (ei != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	166 if (ei.incPinDown()){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	167 addToPinDownList(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	168 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	169 } else {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	170 throw new JPFException("pinDown reference not a live object: " + objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	171 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	172 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	173
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	174 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	175 public void releasePinDown(int objref){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	176 ElementInfo ei = getModifiable(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	177 if (ei != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	178 if (ei.decPinDown()){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	179 removeFromPinDownList(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	180 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	181 } else {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	182 throw new JPFException("pinDown reference not a live object: " + objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	183 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	184 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	185 void markPinDownList (){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	186 if (pinDownList != null){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	187 int len = pinDownList.size();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	188 for (int i=0; i<len; i++){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	189 int objref = pinDownList.get(i);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	190 queueMark(objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	191 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	192 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	193 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	194
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	195 //--- weak reference handling
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	196
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	197 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	198 public void registerWeakReference (ElementInfo ei) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	199 if (weakRefs == null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	200 weakRefs = new ArrayList<ElementInfo>();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	201 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	202
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	203 weakRefs.add(ei);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	204 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	205
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	206 /**
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	207 * reset all weak references that now point to collected objects to 'null'
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	208 * NOTE: this implementation requires our own Reference/WeakReference implementation, to
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	209 * make sure the 'ref' field is the first one
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	210 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	211 protected void cleanupWeakRefs () {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	212 if (weakRefs != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	213 for (ElementInfo ei : weakRefs) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	214 Fields f = ei.getFields();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	215 int ref = f.getIntValue(0); // watch out, the 0 only works with our own WeakReference impl
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	216 if (ref != MJIEnv.NULL) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	217 ElementInfo refEi = get(ref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	218 if ((refEi == null) \|\| (refEi.isNull())) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	219 ei = ei.getModifiableInstance();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	220 // we need to make sure the Fields are properly state managed
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	221 ei.setReferenceField(ei.getFieldInfo(0), MJIEnv.NULL);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	222 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	223 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	224 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	225
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	226 weakRefs = null;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	227 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	228 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	229
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	230 // NOTE - this is where to assert if this index isn't occupied yet, since only concrete classes know
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	231 // if there can be collisions, and how elements are stored
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	232
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	233 protected abstract AllocationContext getSUTAllocationContext (ClassInfo ci, ThreadInfo ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	234 protected abstract AllocationContext getSystemAllocationContext (ClassInfo ci, ThreadInfo ti, int anchor);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	235
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	236 /**
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	237 * this is called for newXX(..) allocations that are SUT thread specific, i.e. in response to
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	238 * a explicit NEW or xNEWARRAY instruction that should take the allocating thread into account
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	239 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	240 protected abstract int getNewElementInfoIndex (AllocationContext ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	241
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	242 //--- allocators
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	243
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	244 protected ElementInfo createObject (ClassInfo ci, ThreadInfo ti, int objref) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	245 // create the thing itself
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	246 Fields f = ci.createInstanceFields();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	247 Monitor m = new Monitor();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	248 ElementInfo ei = createElementInfo( objref, ci, f, m, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	249
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	250 set(objref, ei);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	251
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	252 attributes \|= ATTR_ELEMENTS_CHANGED;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	253
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	254 // and do the default (const) field initialization
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	255 ci.initializeInstanceData(ei, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	256
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	257 vm.notifyObjectCreated(ti, ei);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	258
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	259 // note that we don't return -1 if 'outOfMemory' (which is handled in
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	260 // the NEWxx bytecode) because our allocs are used from within the
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	261 // exception handling of the resulting OutOfMemoryError (and we would
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	262 // have to override it, since the VM should guarantee proper exceptions)
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	263
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	264 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	265 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	266
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	267 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	268 public ElementInfo newObject(ClassInfo ci, ThreadInfo ti) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	269 AllocationContext ctx = getSUTAllocationContext( ci, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	270 int index = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	271 ElementInfo ei = createObject( ci, ti, index);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	272
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	273 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	274 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	275
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	276 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	277 public ElementInfo newSystemObject (ClassInfo ci, ThreadInfo ti, int anchor) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	278 AllocationContext ctx = getSystemAllocationContext( ci, ti, anchor);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	279 int index = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	280 ElementInfo ei = createObject( ci, ti, index);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	281 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	282 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	283
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	284 protected ElementInfo createArray (String elementType, int nElements, ClassInfo ci, ThreadInfo ti, int objref) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	285
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	286 Fields f = ci.createArrayFields(ci.getName(), nElements, Types.getTypeSize(elementType), Types.isReference(elementType));
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	287 Monitor m = new Monitor();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	288 DynamicElementInfo ei = createElementInfo( objref, ci, f, m, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	289
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	290 set(objref, ei);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	291
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	292 attributes \|= ATTR_ELEMENTS_CHANGED;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	293
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	294 vm.notifyObjectCreated(ti, ei);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	295
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	296 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	297 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	298
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	299 protected ClassInfo getArrayClassInfo (ThreadInfo ti, String elementType) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	300 String type = "[" + elementType;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	301 SystemClassLoaderInfo sysCl = ti.getSystemClassLoaderInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	302 ClassInfo ciArray = sysCl.getResolvedClassInfo(type);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	303
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	304 if (!ciArray.isInitialized()) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	305 // we do this explicitly here since there are no clinits for array classes
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	306 ciArray.registerClass(ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	307 ciArray.setInitialized();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	308 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	309
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	310 return ciArray;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	311 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	312
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	313 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	314 public ElementInfo newArray(String elementType, int nElements, ThreadInfo ti) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	315 // see newObject for OOM simulation
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	316 ClassInfo ci = getArrayClassInfo(ti, elementType);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	317 AllocationContext ctx = getSUTAllocationContext( ci, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	318
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	319 int index = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	320 ElementInfo ei = createArray( elementType, nElements, ci, ti, index);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	321
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	322 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	323 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	324
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	325 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	326 public ElementInfo newSystemArray(String elementType, int nElements, ThreadInfo ti, int anchor) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	327 // see newObject for OOM simulation
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	328 ClassInfo ci = getArrayClassInfo(ti, elementType);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	329 AllocationContext ctx = getSystemAllocationContext( ci, ti, anchor);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	330
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	331 int index = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	332 ElementInfo ei = createArray( elementType, nElements, ci, ti, index);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	333
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	334 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	335 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	336
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	337
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	338
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	339 protected ElementInfo initializeStringObject( String str, int index, int vref) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	340 ElementInfo ei = getModifiable(index);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	341 ei.setReferenceField("value", vref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	342
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	343 ElementInfo eVal = getModifiable(vref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	344 CharArrayFields cf = (CharArrayFields)eVal.getFields();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	345 cf.setCharValues(str.toCharArray());
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	346
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	347 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	348 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	349
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	350 protected ElementInfo newString (ClassInfo ciString, ClassInfo ciChars, String str, ThreadInfo ti, AllocationContext ctx) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	351
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	352 //--- the string object itself
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	353 int sRef = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	354 createObject( ciString, ti, sRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	355
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	356 //--- its char[] array
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	357 ctx = ctx.extend(ciChars, sRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	358 int vRef = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	359 createArray( "C", str.length(), ciChars, ti, vRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	360
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	361 ElementInfo ei = initializeStringObject(str, sRef, vRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	362 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	363 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	364
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	365 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	366 public ElementInfo newString(String str, ThreadInfo ti){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	367 if (str != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	368 SystemClassLoaderInfo sysCl = ti.getSystemClassLoaderInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	369 ClassInfo ciString = sysCl.getStringClassInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	370 ClassInfo ciChars = sysCl.getCharArrayClassInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	371
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	372 AllocationContext ctx = getSUTAllocationContext( ciString, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	373 return newString( ciString, ciChars, str, ti, ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	374
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	375 } else {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	376 return null;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	377 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	378 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	379
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	380 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	381 public ElementInfo newSystemString (String str, ThreadInfo ti, int anchor) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	382 if (str != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	383 SystemClassLoaderInfo sysCl = ti.getSystemClassLoaderInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	384 ClassInfo ciString = sysCl.getStringClassInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	385 ClassInfo ciChars = sysCl.getCharArrayClassInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	386
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	387 AllocationContext ctx = getSystemAllocationContext( ciString, ti, anchor);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	388 return newString( ciString, ciChars, str, ti, ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	389
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	390 } else {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	391 return null;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	392 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	393 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	394
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	395 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	396 public ElementInfo newInternString (String str, ThreadInfo ti) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	397 if(internStringsMap==null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	398 internStringsMap = vm.getInitialInternStringsMap();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	399 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	400
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	401 int prcId = ti.getApplicationContext().getId();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	402 IntTable.Entry<String> e = internStringsMap.get(prcId).get(str);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	403
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	404 if (e == null){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	405 if (str != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	406 ElementInfo ei = newString( str, ti);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	407 int index = ei.getObjectRef();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	408
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	409 // new interned Strings are always pinned down
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	410 ei.incPinDown();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	411 addToPinDownList(index);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	412 addToInternStrings(str, index, prcId);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	413
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	414 return ei;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	415
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	416 } else {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	417 return null;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	418 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	419
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	420 } else {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	421 return get(e.val);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	422 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	423 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	424
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	425 protected void addToInternStrings (String str, int objref, int prcId) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	426 if ((attributes & ATTR_INTERN_CHANGED) == 0){
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	427 // shallow copy all interned strings tables
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	428 internStringsMap = new HashMap<Integer,IntTable<String>>(internStringsMap);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	429
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	430 // only clone the interned strings table of the current process
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	431 internStringsMap.put(prcId, internStringsMap.get(prcId).clone());
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	432
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	433 // just cloned, no need to clone on the next add
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	434 attributes \|= ATTR_INTERN_CHANGED;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	435 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	436 internStringsMap.get(prcId).add(str, objref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	437 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	438
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	439
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	440 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	441 public ElementInfo newSystemThrowable (ClassInfo ciThrowable, String details, int[] stackSnapshot, int causeRef,
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	442 ThreadInfo ti, int anchor) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	443 SystemClassLoaderInfo sysCl = ti.getSystemClassLoaderInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	444 ClassInfo ciString = sysCl.getStringClassInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	445 ClassInfo ciChars = sysCl.getCharArrayClassInfo();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	446
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	447 //--- the Throwable object itself
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	448 AllocationContext ctx = getSystemAllocationContext( ciThrowable, ti, anchor);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	449 int xRef = getNewElementInfoIndex( ctx);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	450 ElementInfo eiThrowable = createObject( ciThrowable, ti, xRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	451
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	452 //--- the detailMsg field
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	453 if (details != null) {
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	454 AllocationContext ctxString = ctx.extend( ciString, xRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	455 ElementInfo eiMsg = newString( ciString, ciChars, details, ti, ctxString);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	456 eiThrowable.setReferenceField("detailMessage", eiMsg.getObjectRef());
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	457 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	458
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	459 //--- the stack snapshot field
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	460 ClassInfo ciSnap = getArrayClassInfo(ti, "I");
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	461 AllocationContext ctxSnap = ctx.extend(ciSnap, xRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	462 int snapRef = getNewElementInfoIndex( ctxSnap);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	463 ElementInfo eiSnap = createArray( "I", stackSnapshot.length, ciSnap, ti, snapRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	464 int[] snap = eiSnap.asIntArray();
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	465 System.arraycopy( stackSnapshot, 0, snap, 0, stackSnapshot.length);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	466 eiThrowable.setReferenceField("snapshot", snapRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	467
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	468 //--- the cause field
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	469 eiThrowable.setReferenceField("cause", (causeRef != MJIEnv.NULL)? causeRef : xRef);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	470
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	471 return eiThrowable;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	472 }
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	473
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	474
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	475 //--- abstract accessors
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	476
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	477 /*
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	478 * these methods abstract away the container type used in GenericHeap subclasses
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	479 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	480
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	481 /**
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	482 * internal setter used during allocation
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	483 * @param index
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	484 * @param ei
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	485 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	486 protected abstract void set (int index, ElementInfo ei);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	487
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	488 /**
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	489 * public getter to access but not change ElementInfos
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	490 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	491 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	492 public abstract ElementInfo get (int ref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	493
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	494
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	495 /**
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	496 * public getter to access modifiable ElementInfos;
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	497 */
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	498 @Override
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	499 public abstract ElementInfo getModifiable (int ref);
61d41facf527 initial v8 import (history reset) Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> parents: diff changeset	500

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61d41facf527 initial v8 import (history reset)