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;
22 * interface to abstract the referencing set of threadinfos per object/class
23 * Used to detect shared objects/classes
24 * Instances are created through a configured factory (SharedObjectPolicy)
26 * We abstract the container so that the way we identify threads is not exposed
27 * to the client, and implementations can use either ThreadInfo references or
30 public interface ThreadInfoSet extends Cloneable {
33 * @return true if the thread wasn't in the set yet and was added
35 ThreadInfoSet add (ThreadInfo ti);
37 ThreadInfoSet remove (ThreadInfo ti);
39 boolean contains (ThreadInfo ti);
41 boolean isShared (ThreadInfo ti, ElementInfo ei);
44 boolean hasMultipleLiveThreads ();
45 boolean hasMultipleRunnableThreads ();
47 Memento<ThreadInfoSet> getMemento();