Mercurial > hg > Members > kono > jpf-core
diff src/peers/gov/nasa/jpf/vm/JPF_java_util_concurrent_atomic_AtomicLong.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
parents | |
children | 9dc9df847545 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/peers/gov/nasa/jpf/vm/JPF_java_util_concurrent_atomic_AtomicLong.java Fri Jan 23 10:14:01 2015 -0800 @@ -0,0 +1,89 @@ +/* + * 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.annotation.MJI; +import gov.nasa.jpf.vm.MJIEnv; +import gov.nasa.jpf.vm.NativePeer; + +/** + * native peer for java.util.concurrent.atomic.AtomicLong + * this implementation just cuts off native methods + */ +public class JPF_java_util_concurrent_atomic_AtomicLong extends NativePeer { + @MJI + public void $clinit____V (MJIEnv env, int rcls) { + // don't let this one pass, it calls native methods from non-public Sun classes + } + + @MJI + public boolean compareAndSet__JJ__Z (MJIEnv env, int objRef, long expect, long update){ + long value = env.getLongField(objRef, "value"); + if (value == expect){ + env.setLongField(objRef, "value", update); + return true; + } else { + return false; + } + } + + @MJI + public long getAndIncrement____J (MJIEnv env, int objRef){ + long value = env.getLongField(objRef, "value"); + env.setLongField(objRef, "value", value + 1); + return value; + } + + @MJI + public long getAndDecrement____J (MJIEnv env, int objRef){ + long value = env.getLongField(objRef, "value"); + env.setLongField(objRef, "value", value - 1); + return value; + } + + @MJI + public long getAndAdd__J__J (MJIEnv env, int objRef, long delta) { + long value = env.getIntField(objRef, "value"); + env.setLongField(objRef, "value", value + delta); + return value; + } + + @MJI + public long incrementAndGet____J (MJIEnv env, int objRef) { + long value = env.getIntField(objRef, "value"); + value++; + env.setLongField(objRef, "value", value); + return value; + } + + @MJI + public long decrementAndGet____J (MJIEnv env, int objRef) { + long value = env.getIntField(objRef, "value"); + value--; + env.setLongField(objRef, "value", value); + return value; + } + + @MJI + public long addAndGet__J__J (MJIEnv env, int objRef, long delta) { + long value = env.getIntField(objRef, "value"); + value += delta; + env.setLongField(objRef, "value", value); + return value; + } +}