1*795d594fSAndroid Build Coastguard Worker /* 2*795d594fSAndroid Build Coastguard Worker * Copyright (C) 2016 The Android Open Source Project 3*795d594fSAndroid Build Coastguard Worker * 4*795d594fSAndroid Build Coastguard Worker * Licensed under the Apache License, Version 2.0 (the "License"); 5*795d594fSAndroid Build Coastguard Worker * you may not use this file except in compliance with the License. 6*795d594fSAndroid Build Coastguard Worker * You may obtain a copy of the License at 7*795d594fSAndroid Build Coastguard Worker * 8*795d594fSAndroid Build Coastguard Worker * http://www.apache.org/licenses/LICENSE-2.0 9*795d594fSAndroid Build Coastguard Worker * 10*795d594fSAndroid Build Coastguard Worker * Unless required by applicable law or agreed to in writing, software 11*795d594fSAndroid Build Coastguard Worker * distributed under the License is distributed on an "AS IS" BASIS, 12*795d594fSAndroid Build Coastguard Worker * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13*795d594fSAndroid Build Coastguard Worker * See the License for the specific language governing permissions and 14*795d594fSAndroid Build Coastguard Worker * limitations under the License. 15*795d594fSAndroid Build Coastguard Worker */ 16*795d594fSAndroid Build Coastguard Worker 17*795d594fSAndroid Build Coastguard Worker import java.util.TreeMap; 18*795d594fSAndroid Build Coastguard Worker 19*795d594fSAndroid Build Coastguard Worker public class MovingGCThread implements Runnable { 20*795d594fSAndroid Build Coastguard Worker private static TreeMap treeMap = new TreeMap(); 21*795d594fSAndroid Build Coastguard Worker run()22*795d594fSAndroid Build Coastguard Worker public void run() { 23*795d594fSAndroid Build Coastguard Worker for (int i = 0; i < 20; i++) { 24*795d594fSAndroid Build Coastguard Worker testHomogeneousCompaction(); 25*795d594fSAndroid Build Coastguard Worker } 26*795d594fSAndroid Build Coastguard Worker } 27*795d594fSAndroid Build Coastguard Worker testHomogeneousCompaction()28*795d594fSAndroid Build Coastguard Worker public static void testHomogeneousCompaction() { 29*795d594fSAndroid Build Coastguard Worker final boolean supportHSC = supportHomogeneousSpaceCompact(); 30*795d594fSAndroid Build Coastguard Worker if (!supportHSC) { 31*795d594fSAndroid Build Coastguard Worker return; 32*795d594fSAndroid Build Coastguard Worker } 33*795d594fSAndroid Build Coastguard Worker Object o = new Object(); 34*795d594fSAndroid Build Coastguard Worker long addressBefore = objectAddress(o); 35*795d594fSAndroid Build Coastguard Worker allocateStuff(); 36*795d594fSAndroid Build Coastguard Worker final boolean success = performHomogeneousSpaceCompact(); 37*795d594fSAndroid Build Coastguard Worker allocateStuff(); 38*795d594fSAndroid Build Coastguard Worker if (!success) { 39*795d594fSAndroid Build Coastguard Worker System.out.println("error: Expected " + supportHSC + " but got " + success); 40*795d594fSAndroid Build Coastguard Worker } 41*795d594fSAndroid Build Coastguard Worker allocateStuff(); 42*795d594fSAndroid Build Coastguard Worker long addressAfter = objectAddress(o); 43*795d594fSAndroid Build Coastguard Worker // This relies on the compaction copying from one space to another space and there being 44*795d594fSAndroid Build Coastguard Worker // no overlap. 45*795d594fSAndroid Build Coastguard Worker if (addressBefore == addressAfter) { 46*795d594fSAndroid Build Coastguard Worker System.out.println("error: Expected different adddress " + addressBefore + " vs " + 47*795d594fSAndroid Build Coastguard Worker addressAfter); 48*795d594fSAndroid Build Coastguard Worker } 49*795d594fSAndroid Build Coastguard Worker } 50*795d594fSAndroid Build Coastguard Worker allocateStuff()51*795d594fSAndroid Build Coastguard Worker private static void allocateStuff() { 52*795d594fSAndroid Build Coastguard Worker for (int i = 0; i < 1000; ++i) { 53*795d594fSAndroid Build Coastguard Worker Object o = new Object(); 54*795d594fSAndroid Build Coastguard Worker treeMap.put(o.hashCode(), o); 55*795d594fSAndroid Build Coastguard Worker } 56*795d594fSAndroid Build Coastguard Worker } 57*795d594fSAndroid Build Coastguard Worker 58*795d594fSAndroid Build Coastguard Worker // Methods to get access to ART internals. supportHomogeneousSpaceCompact()59*795d594fSAndroid Build Coastguard Worker private static native boolean supportHomogeneousSpaceCompact(); performHomogeneousSpaceCompact()60*795d594fSAndroid Build Coastguard Worker private static native boolean performHomogeneousSpaceCompact(); objectAddress(Object object)61*795d594fSAndroid Build Coastguard Worker private static native long objectAddress(Object object); 62*795d594fSAndroid Build Coastguard Worker } 63