Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/vm/NotDeadlockedProperty.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
---|---|
date | Fri, 23 Jan 2015 10:14:01 -0800 |
parents | |
children |
line wrap: on
line source
/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.vm; import gov.nasa.jpf.Config; import gov.nasa.jpf.GenericProperty; import gov.nasa.jpf.search.Search; import java.io.PrintWriter; import java.io.StringWriter; /** * property class to check for no-runnable-threads conditions */ public class NotDeadlockedProperty extends GenericProperty { Search search; ThreadInfo tiAtomic; public NotDeadlockedProperty (Config conf, Search search) { this.search = search; } @Override public String getErrorMessage () { VM vm = search.getVM(); StringWriter sw = new StringWriter(); PrintWriter pw = new PrintWriter(sw); if (tiAtomic != null){ pw.println("blocked in atomic section:"); } else { pw.println("deadlock encountered:"); } ThreadInfo[] liveThreads = vm.getLiveThreads(); for (ThreadInfo ti : liveThreads) { pw.print(" "); if (ti == tiAtomic){ pw.print("ATOMIC "); } pw.println(ti.getStateDescription()); } return sw.toString(); } @Override public boolean check (Search search, VM vm) { if (vm.isDeadlocked()){ ThreadInfo ti = vm.getCurrentThread(); if (ti.isAtomic()){ tiAtomic = ti; } return false; } else { return true; } } @Override public void reset() { tiAtomic = null; } }