/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package benchmarks;
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import com.google.caliper.Param;
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import java.lang.ref.Reference;
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import java.lang.ref.SoftReference;
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import java.lang.ref.WeakReference;
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import java.lang.reflect.Field;
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public class ReferenceGetBenchmark {
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@Param boolean intrinsicDisabled;
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private Object obj = "str";
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protected void setUp() throws Exception {
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Field intrinsicDisabledField = Reference.class.getDeclaredField("disableIntrinsic");
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intrinsicDisabledField.setAccessible(true);
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intrinsicDisabledField.setBoolean(null, intrinsicDisabled);
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}
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public void timeSoftReferenceGet(int reps) throws Exception {
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Reference soft = new SoftReference(obj);
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for (int i = 0; i < reps; i++) {
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Object o = soft.get();
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}
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}
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public void timeWeakReferenceGet(int reps) throws Exception {
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Reference weak = new WeakReference(obj);
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for (int i = 0; i < reps; i++) {
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Object o = weak.get();
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}
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}
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public void timeNonPreservedWeakReferenceGet(int reps) throws Exception {
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Reference weak = new WeakReference(obj);
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obj = null;
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Runtime.getRuntime().gc();
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for (int i = 0; i < reps; i++) {
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Object o = weak.get();
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}
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}
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}
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