/* * Copyright (C) 2017 The Android Open Source Project * * 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. */ import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodHandles.Lookup; import java.lang.invoke.VarHandle; public class VarHandleDexTest { // A static field to access. private static boolean bsValue = false; // An instance field to access. private Float fValue = Float.valueOf(99.9f); public static void main(String[] args) throws Throwable { // This code is entirely nonsense. It is just to exercise // signature polymorphic methods in dx. VarHandleDexTest t = new VarHandleDexTest(); { VarHandle vb = MethodHandles.lookup().findStaticVarHandle(t.getClass(), "bsValue", boolean.class); boolean newValue = true; boolean expectedValue = false; boolean b0 = (boolean) vb.compareAndExchangeAcquire(t, expectedValue, newValue); vb.compareAndExchangeAcquire(t, expectedValue, newValue); boolean b1 = (boolean) vb.compareAndExchange(t, expectedValue, newValue); vb.compareAndExchange(t, expectedValue, newValue); boolean b2 = (boolean) vb.compareAndExchangeRelease(t, expectedValue, newValue); vb.compareAndExchangeRelease(t, expectedValue, newValue); boolean r0 = vb.compareAndSet(t, expectedValue, newValue); vb.compareAndSet(t, expectedValue, newValue); boolean r1 = vb.weakCompareAndSetAcquire(t, expectedValue, newValue); vb.weakCompareAndSetAcquire(t, expectedValue, newValue); boolean r2 = vb.weakCompareAndSet(t, expectedValue, newValue); vb.weakCompareAndSet(t, expectedValue, newValue); boolean r3 = vb.weakCompareAndSetPlain(t, expectedValue, newValue); vb.weakCompareAndSetPlain(t, expectedValue, newValue); boolean r4 = vb.weakCompareAndSetRelease(t, expectedValue, newValue); vb.weakCompareAndSetRelease(t, expectedValue, newValue); boolean b3 = (boolean) vb.getAndAddAcquire(t, expectedValue, newValue); vb.getAndAddAcquire(t, expectedValue, newValue); boolean b4 = (boolean) vb.getAndAdd(t, expectedValue, newValue); vb.getAndAdd(t, expectedValue, newValue); boolean b5 = (boolean) vb.getAndAddRelease(t, expectedValue, newValue); vb.getAndAddRelease(t, expectedValue, newValue); boolean b6 = (boolean) vb.getAndBitwiseAndAcquire(t, expectedValue, newValue); vb.getAndBitwiseAndAcquire(t, expectedValue, newValue); boolean b7 = (boolean) vb.getAndBitwiseAnd(t, expectedValue, newValue); vb.getAndBitwiseAnd(t, expectedValue, newValue); boolean b8 = (boolean) vb.getAndBitwiseAndRelease(t, expectedValue, newValue); vb.getAndBitwiseAndRelease(t, expectedValue, newValue); boolean b9 = (boolean) vb.getAndBitwiseOrAcquire(t, expectedValue, newValue); vb.getAndBitwiseOrAcquire(t, expectedValue, newValue); boolean b10 = (boolean) vb.getAndBitwiseOr(t, expectedValue, newValue); vb.getAndBitwiseOr(t, expectedValue, newValue); boolean b11 = (boolean) vb.getAndBitwiseOrRelease(t, expectedValue, newValue); vb.getAndBitwiseOrRelease(t, expectedValue, newValue); boolean b12 = (boolean) vb.getAndBitwiseXorAcquire(t, expectedValue, newValue); vb.getAndBitwiseXorAcquire(t, expectedValue, newValue); boolean b13 = (boolean) vb.getAndBitwiseXor(t, expectedValue, newValue); vb.getAndBitwiseXor(t, expectedValue, newValue); boolean b14 = (boolean) vb.getAndBitwiseXorRelease(t, expectedValue, newValue); vb.getAndBitwiseXorRelease(t, expectedValue, newValue); boolean b15 = (boolean) vb.getAndSetAcquire(t, newValue); vb.getAndSetAcquire(t, newValue); boolean b16 = (boolean) vb.getAndSet(t, newValue); vb.getAndSet(t, newValue); boolean b17 = (boolean) vb.getAndSetRelease(t, newValue); vb.getAndSetRelease(t, newValue); boolean b18 = (boolean) vb.get(t); vb.get(t); boolean b19 = (boolean) vb.getAcquire(t); vb.getAcquire(t); boolean b20 = (boolean) vb.getOpaque(t); vb.getOpaque(t); boolean b21 = (boolean) vb.getVolatile(t); vb.getVolatile(t); vb.set(t, newValue); vb.setOpaque(t, newValue); vb.setRelease(t, newValue); vb.setVolatile(t, newValue); } { VarHandle vf = MethodHandles.lookup().findStaticVarHandle(t.getClass(), "fValue", Float.class); Float newValue = Float.valueOf(1.1f); Float expectedValue = Float.valueOf(2.2e-6f); Float f0 = (Float) vf.compareAndExchangeAcquire(t, expectedValue, newValue); vf.compareAndExchangeAcquire(t, expectedValue, newValue); Float f1 = (Float) vf.compareAndExchange(t, expectedValue, newValue); vf.compareAndExchange(t, expectedValue, newValue); Float f2 = (Float) vf.compareAndExchangeRelease(t, expectedValue, newValue); vf.compareAndExchangeRelease(t, expectedValue, newValue); boolean r0 = vf.compareAndSet(t, expectedValue, newValue); vf.compareAndSet(t, expectedValue, newValue); boolean r1 = vf.weakCompareAndSetAcquire(t, expectedValue, newValue); vf.weakCompareAndSetAcquire(t, expectedValue, newValue); boolean r2 = vf.weakCompareAndSet(t, expectedValue, newValue); vf.weakCompareAndSet(t, expectedValue, newValue); boolean r3 = vf.weakCompareAndSetPlain(t, expectedValue, newValue); vf.weakCompareAndSetPlain(t, expectedValue, newValue); boolean r4 = vf.weakCompareAndSetRelease(t, expectedValue, newValue); vf.weakCompareAndSetRelease(t, expectedValue, newValue); Float f3 = (Float) vf.getAndAddAcquire(t, expectedValue, newValue); vf.getAndAddAcquire(t, expectedValue, newValue); Float f4 = (Float) vf.getAndAdd(t, expectedValue, newValue); vf.getAndAdd(t, expectedValue, newValue); Float f5 = (Float) vf.getAndAddRelease(t, expectedValue, newValue); vf.getAndAddRelease(t, expectedValue, newValue); Float f6 = (Float) vf.getAndBitwiseAndAcquire(t, expectedValue, newValue); vf.getAndBitwiseAndAcquire(t, expectedValue, newValue); Float f7 = (Float) vf.getAndBitwiseAnd(t, expectedValue, newValue); vf.getAndBitwiseAnd(t, expectedValue, newValue); Float f8 = (Float) vf.getAndBitwiseAndRelease(t, expectedValue, newValue); vf.getAndBitwiseAndRelease(t, expectedValue, newValue); Float f9 = (Float) vf.getAndBitwiseOrAcquire(t, expectedValue, newValue); vf.getAndBitwiseOrAcquire(t, expectedValue, newValue); Float f10 = (Float) vf.getAndBitwiseOr(t, expectedValue, newValue); vf.getAndBitwiseOr(t, expectedValue, newValue); Float f11 = (Float) vf.getAndBitwiseOrRelease(t, expectedValue, newValue); vf.getAndBitwiseOrRelease(t, expectedValue, newValue); Float f12 = (Float) vf.getAndBitwiseXorAcquire(t, expectedValue, newValue); vf.getAndBitwiseXorAcquire(t, expectedValue, newValue); Float f13 = (Float) vf.getAndBitwiseXor(t, expectedValue, newValue); vf.getAndBitwiseXor(t, expectedValue, newValue); Float f14 = (Float) vf.getAndBitwiseXorRelease(t, expectedValue, newValue); vf.getAndBitwiseXorRelease(t, expectedValue, newValue); Float f15 = (Float) vf.getAndSetAcquire(t, newValue); vf.getAndSetAcquire(t, newValue); Float f16 = (Float) vf.getAndSet(t, newValue); vf.getAndSet(t, newValue); Float f17 = (Float) vf.getAndSetRelease(t, newValue); vf.getAndSetRelease(t, newValue); Float f18 = (Float) vf.get(t); vf.get(t); Float f19 = (Float) vf.getAcquire(t); vf.getAcquire(t); Float f20 = (Float) vf.getOpaque(t); vf.getOpaque(t); Float f21 = (Float) vf.getVolatile(t); vf.getVolatile(t); vf.set(t, newValue); vf.setOpaque(t, newValue); vf.setRelease(t, newValue); vf.setVolatile(t, newValue); } { String[] words = { "okay", "stevie", "bring", "your", "three", "friends", "up" }; VarHandle vw = MethodHandles.arrayElementVarHandle(words.getClass()); String newValue = "four"; String expectedValue = "three"; int index = 4; String s0 = (String) vw.compareAndExchangeAcquire(words, index, expectedValue, newValue); vw.compareAndExchangeAcquire(words, index, expectedValue, newValue); String s1 = (String) vw.compareAndExchange(words, index, expectedValue, newValue); vw.compareAndExchange(words, index, expectedValue, newValue); String s2 = (String) vw.compareAndExchangeRelease(words, index, expectedValue, newValue); vw.compareAndExchangeRelease(words, index, expectedValue, newValue); boolean r0 = vw.compareAndSet(words, index, expectedValue, newValue); vw.compareAndSet(words, index, expectedValue, newValue); boolean r1 = vw.weakCompareAndSetAcquire(words, index, expectedValue, newValue); vw.weakCompareAndSetAcquire(words, index, expectedValue, newValue); boolean r2 = vw.weakCompareAndSet(words, index, expectedValue, newValue); vw.weakCompareAndSet(words, index, expectedValue, newValue); boolean r3 = vw.weakCompareAndSetPlain(words, index, expectedValue, newValue); vw.weakCompareAndSetPlain(words, index, expectedValue, newValue); boolean r4 = vw.weakCompareAndSetRelease(words, index, expectedValue, newValue); vw.weakCompareAndSetRelease(words, index, expectedValue, newValue); String s3 = (String) vw.getAndAddAcquire(words, index, expectedValue, newValue); vw.getAndAddAcquire(words, index, expectedValue, newValue); String s4 = (String) vw.getAndAdd(words, index, expectedValue, newValue); vw.getAndAdd(words, index, expectedValue, newValue); String s5 = (String) vw.getAndAddRelease(words, index, expectedValue, newValue); vw.getAndAddRelease(words, index, expectedValue, newValue); String s6 = (String) vw.getAndBitwiseAndAcquire(words, index, expectedValue, newValue); vw.getAndBitwiseAndAcquire(words, index, expectedValue, newValue); String s7 = (String) vw.getAndBitwiseAnd(words, index, expectedValue, newValue); vw.getAndBitwiseAnd(words, index, expectedValue, newValue); String s8 = (String) vw.getAndBitwiseAndRelease(words, index, expectedValue, newValue); vw.getAndBitwiseAndRelease(words, index, expectedValue, newValue); String s9 = (String) vw.getAndBitwiseOrAcquire(words, index, expectedValue, newValue); vw.getAndBitwiseOrAcquire(words, index, expectedValue, newValue); String s10 = (String) vw.getAndBitwiseOr(words, index, expectedValue, newValue); vw.getAndBitwiseOr(words, index, expectedValue, newValue); String s11 = (String) vw.getAndBitwiseOrRelease(words, index, expectedValue, newValue); vw.getAndBitwiseOrRelease(words, index, expectedValue, newValue); String s12 = (String) vw.getAndBitwiseXorAcquire(words, index, expectedValue, newValue); vw.getAndBitwiseXorAcquire(words, index, expectedValue, newValue); String s13 = (String) vw.getAndBitwiseXor(words, index, expectedValue, newValue); vw.getAndBitwiseXor(words, index, expectedValue, newValue); String s14 = (String) vw.getAndBitwiseXorRelease(words, index, expectedValue, newValue); vw.getAndBitwiseXorRelease(words, index, expectedValue, newValue); String s15 = (String) vw.getAndSetAcquire(words, index, newValue); vw.getAndSetAcquire(words, index, newValue); String s16 = (String) vw.getAndSet(words, index, newValue); vw.getAndSet(words, index, newValue); String s17 = (String) vw.getAndSetRelease(words, index, newValue); vw.getAndSetRelease(words, index, newValue); String s18 = (String) vw.get(words, index); vw.get(words, index); String s19 = (String) vw.getAcquire(words, index); vw.getAcquire(words, index); String s20 = (String) vw.getOpaque(words, index); vw.getOpaque(words, index); String s21 = (String) vw.getVolatile(words, index); vw.getVolatile(words, index); vw.set(words, index, newValue); vw.setOpaque(words, index, newValue); vw.setRelease(words, index, newValue); vw.setVolatile(words, index, newValue); } } }