2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
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
10 * http://www.apache.org/licenses/LICENSE-2.0.
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.
18 package gov.nasa.jpf.vm;
20 import gov.nasa.jpf.util.Misc;
21 import java.util.List;
25 public abstract class AbstractSerializer
26 implements StateSerializer, KernelState.ChangeListener {
27 // INVARIANT: non-null iff registered for changes to KernelState
28 protected int[] cached = null;
31 protected KernelState ks = null;
33 // optional list of native state holders that contribute to storingData computation
34 protected NativeStateHolder[] nativeStateHolders = new NativeStateHolder[0];
37 public void attach(VM vm) {
39 this.ks = vm.getKernelState();
42 public int getCurrentStateVectorLength() {
47 public int[] getStoringData() {
49 cached = computeStoringData();
50 ks.pushChangeListener(this);
56 public void kernelStateChanged (KernelState same) {
62 public void addNativeStateHolder (NativeStateHolder nsh){
63 nativeStateHolders = Misc.appendUniqueElement(nativeStateHolders, nsh);
66 protected abstract int[] computeStoringData();