Mercurial > hg > Members > kono > jpf-core

comparison src/peers/gov/nasa/jpf/vm/JPF_java_lang_ThreadLocal.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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1 /*
2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
4 * All rights reserved.
5 *
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0.
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package gov.nasa.jpf.vm;
20
21 import gov.nasa.jpf.annotation.MJI;
22
23 /**
24 * peer for java.lang.ThreadLocal
25 */
26 public class JPF_java_lang_ThreadLocal extends NativePeer {
27
28 @MJI
29 public int getEntry____Ljava_lang_ThreadLocal$Entry_2 (MJIEnv env, int objRef){
30 ThreadInfo ti = env.getThreadInfo();
31 int tObjRef = ti.getThreadObjectRef();
32
33 int aRef = env.getReferenceField(tObjRef, "threadLocals");
34 if (aRef == MJIEnv.NULL){
35 return MJIEnv.NULL;
36 }
37 int[] erefs = env.getReferenceArrayObject(aRef);
38 int len = env.getArrayLength(aRef);
39
40
41 for (int i=0; i<len; i++){
42 int e = erefs[i];
43 int k = env.getReferenceField(e, "ref");
44
45 if (k == objRef){
46 return e;
47 }
48 }
49
50 return MJIEnv.NULL;
51 }
52
53 @MJI
54 public void addEntry__Ljava_lang_ThreadLocal$Entry_2 (MJIEnv env, int objRef, int eRef){
55 ThreadInfo ti = env.getThreadInfo();
56 int tObjRef = ti.getThreadObjectRef();
57 int aRef = env.getReferenceField(tObjRef, "threadLocals");
58
59 if (aRef == MJIEnv.NULL){ // first entry
60 int newaRef = env.newObjectArray("Ljava/lang/ThreadLocal.Entry;", 1);
61 env.setReferenceArrayElement(newaRef, 0, eRef);
62 env.setReferenceField(tObjRef, "threadLocals", newaRef);
63
64 } else {
65 int len = env.getArrayLength(aRef);
66 int[] erefs = env.getReferenceArrayObject(aRef);
67
68 // new key/value
69 int newaRef = env.newObjectArray("Ljava/lang/ThreadLocal.Entry;", len+1);
70 env.arrayCopy(aRef, 0, newaRef, 0, len);
71 env.setReferenceArrayElement(newaRef, len, eRef);
72 env.setReferenceField(tObjRef, "threadLocals", newaRef);
73 }
74
75 }
76
77 @MJI
78 public void removeEntry__Ljava_lang_ThreadLocal$Entry_2 (MJIEnv env, int objRef, int eRef){
79 ThreadInfo ti = env.getThreadInfo();
80 int tObjRef = ti.getThreadObjectRef();
81 int aRef = env.getReferenceField(tObjRef, "threadLocals");
82
83 if (aRef != MJIEnv.NULL){
84 int len = env.getArrayLength(aRef);
85 int[] erefs = env.getReferenceArrayObject(aRef);
86 int newaRef = env.newObjectArray("Ljava/lang/ThreadLocal.Entry;", len-1);
87
88 for (int i=0, j=0; i<len; i++){
89 int e = erefs[i];
90 if (e != eRef){
91 env.setReferenceArrayElement(newaRef, j++, e);
92 }
93 }
94
95 env.setReferenceField(tObjRef, "threadLocals", newaRef);
96 }
97 }
98 }