view jcstress-test-gen/src/main/resources/fences/X-StoreStoreFenceTest1.java.template @ 297:2cb629dfc2be

Chapter 1.c: Further simplify Fences test generator.
author shade
date Fri, 10 Jun 2016 16:26:59 +0300
parents c47a1a95f97d
children 6d05ba34c4e9
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/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package $package$;

import org.openjdk.jcstress.annotations.*;
import org.openjdk.jcstress.infra.results.$Type$Result2;

import java.lang.invoke.VarHandle;


@JCStressTest
@Description("Tests VarHandle methods which take effect of store store fence.")
@Outcome(id = "$value0$, $value0$", expect = Expect.ACCEPTABLE, desc = "actor2 observe the variables before actor1 update")
@Outcome(id = "$value0$, $value1$", expect = Expect.ACCEPTABLE, desc = "actor2 observe the variables after x is already updated but var hasn't yet")
@Outcome(id = "$value1$, $value0$", expect = Expect.FORBIDDEN,  desc = "var won't be observed to be updated before x is updated")
@Outcome(id = "$value1$, $value1$", expect = Expect.ACCEPTABLE,  desc = "actor2 observe the variables after actor1 update completely")
#if[alwaysAtomic]
@Outcome(expect = Expect.FORBIDDEN, desc = "Other values are forbidden: atomicity violation.")
#else[alwaysAtomic]
@Outcome(id = "$value0$, .*", expect = Expect.ACCEPTABLE_SPEC, desc = "Non-atomic access detected, allowed by spec, when load x in actor2 before storestore Fence in actor1")
@Outcome(id = ".*, $value1$", expect = Expect.ACCEPTABLE_SPEC, desc = "Non-atomic access detected, allowed by spec, if r1 is half-value, load x must get a full-value")
@Ref("http://docs.oracle.com/javase/specs/jls/se7/html/jls-17.html#jls-17.7")
#end[alwaysAtomic]
@State
public class $TestClassName$ {

    $type$ x;

    $type$ field;

    @Actor
    public void actor1() {
        x = $valueLiteral1$;
        %StoreStoreFenceSet%
    }

    @Actor
    public void actor2($Type$Result2 r) {
        r.r1 = field;
        VarHandle.fullFence();
        r.r2 = x;
    }

}