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.
19 package gov.nasa.jpf.vm;
21 import gov.nasa.jpf.Config;
24 * a AllRunnablesSyncPolicy that only considers the runnables with the highest
27 * 2do - it doesn't make much sense to compare priorities across process
28 * boundaries (unless we model distributed apps running on the same machine)
30 public class PriorityRunnablesSyncPolicy extends AllRunnablesSyncPolicy {
32 public PriorityRunnablesSyncPolicy(Config config) {
37 protected ThreadInfo[] getTimeoutRunnables (ApplicationContext appCtx){
38 ThreadInfo[] allRunnables = super.getTimeoutRunnables(appCtx);
40 int maxPrio = Integer.MIN_VALUE;
42 for (int i=0; i<allRunnables.length; i++){
43 ThreadInfo ti = allRunnables[i];
45 int prio = ti.getPriority();
49 for (int j=0; j<i; j++){
50 allRunnables[j]= null;
54 } else if (prio < maxPrio){
55 allRunnables[i] = null;
57 } else { // prio == maxPrio
63 if (n < allRunnables.length){
64 ThreadInfo[] prioRunnables = new ThreadInfo[n];
65 for (int i=0, j=0; j<n; j++, i++){
66 if (allRunnables[i] != null){
67 prioRunnables[j++] = allRunnables[i];
73 } else { // all runnables had the same prio