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comparison src/peers/gov/nasa/jpf/vm/JPF_java_util_concurrent_atomic_AtomicLong.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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children 9dc9df847545
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-1:000000000000 0:61d41facf527
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 package gov.nasa.jpf.vm;
19
20 import gov.nasa.jpf.annotation.MJI;
21 import gov.nasa.jpf.vm.MJIEnv;
22 import gov.nasa.jpf.vm.NativePeer;
23
24 /**
25 * native peer for java.util.concurrent.atomic.AtomicLong
26 * this implementation just cuts off native methods
27 */
28 public class JPF_java_util_concurrent_atomic_AtomicLong extends NativePeer {
29 @MJI
30 public void $clinit____V (MJIEnv env, int rcls) {
31 // don't let this one pass, it calls native methods from non-public Sun classes
32 }
33
34 @MJI
35 public boolean compareAndSet__JJ__Z (MJIEnv env, int objRef, long expect, long update){
36 long value = env.getLongField(objRef, "value");
37 if (value == expect){
38 env.setLongField(objRef, "value", update);
39 return true;
40 } else {
41 return false;
42 }
43 }
44
45 @MJI
46 public long getAndIncrement____J (MJIEnv env, int objRef){
47 long value = env.getLongField(objRef, "value");
48 env.setLongField(objRef, "value", value + 1);
49 return value;
50 }
51
52 @MJI
53 public long getAndDecrement____J (MJIEnv env, int objRef){
54 long value = env.getLongField(objRef, "value");
55 env.setLongField(objRef, "value", value - 1);
56 return value;
57 }
58
59 @MJI
60 public long getAndAdd__J__J (MJIEnv env, int objRef, long delta) {
61 long value = env.getIntField(objRef, "value");
62 env.setLongField(objRef, "value", value + delta);
63 return value;
64 }
65
66 @MJI
67 public long incrementAndGet____J (MJIEnv env, int objRef) {
68 long value = env.getIntField(objRef, "value");
69 value++;
70 env.setLongField(objRef, "value", value);
71 return value;
72 }
73
74 @MJI
75 public long decrementAndGet____J (MJIEnv env, int objRef) {
76 long value = env.getIntField(objRef, "value");
77 value--;
78 env.setLongField(objRef, "value", value);
79 return value;
80 }
81
82 @MJI
83 public long addAndGet__J__J (MJIEnv env, int objRef, long delta) {
84 long value = env.getIntField(objRef, "value");
85 value += delta;
86 env.setLongField(objRef, "value", value);
87 return value;
88 }
89 }