1 /* 2 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.gc.g1; 26 27 import java.io.PrintStream; 28 import java.util.Iterator; 29 import java.util.Observable; 30 import java.util.Observer; 31 32 import sun.jvm.hotspot.debugger.Address; 33 import sun.jvm.hotspot.gc.shared.CollectedHeap; 34 import sun.jvm.hotspot.gc.shared.CollectedHeapName; 35 import sun.jvm.hotspot.gc.shared.SpaceClosure; 36 import sun.jvm.hotspot.gc.shared.PrintRegionClosure; 37 import sun.jvm.hotspot.memory.MemRegion; 38 import sun.jvm.hotspot.runtime.VM; 39 import sun.jvm.hotspot.runtime.VMObjectFactory; 40 import sun.jvm.hotspot.types.AddressField; 41 import sun.jvm.hotspot.types.CIntegerField; 42 import sun.jvm.hotspot.types.Type; 43 import sun.jvm.hotspot.types.TypeDataBase; 44 import sun.jvm.hotspot.tools.HeapSummary; 45 46 // Mirror class for G1CollectedHeap. 47 48 public class G1CollectedHeap extends CollectedHeap { 49 // HeapRegionManager _hrm; 50 static private AddressField hrmField; 51 // MemRegion _g1_reserved; 52 static private long g1ReservedFieldOffset; 53 // size_t _summary_bytes_used; 54 static private CIntegerField summaryBytesUsedField; 55 // G1MonitoringSupport* _g1mm; 56 static private AddressField g1mmField; 118 public HeapRegionSetBase humongousSet() { 119 Address humongousSetAddr = addr.addOffsetTo(humongousSetFieldOffset); 120 return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class, 121 humongousSetAddr); 122 } 123 124 private Iterator<HeapRegion> heapRegionIterator() { 125 return hrm().heapRegionIterator(); 126 } 127 128 public void heapRegionIterate(SpaceClosure scl) { 129 Iterator<HeapRegion> iter = heapRegionIterator(); 130 while (iter.hasNext()) { 131 HeapRegion hr = iter.next(); 132 scl.doSpace(hr); 133 } 134 } 135 136 public CollectedHeapName kind() { 137 return CollectedHeapName.G1; 138 } 139 140 @Override 141 public void printOn(PrintStream tty) { 142 MemRegion mr = reservedRegion(); 143 144 tty.print("garbage-first heap"); 145 tty.print(" [" + mr.start() + ", " + mr.end() + "]"); 146 tty.println(" region size " + (HeapRegion.grainBytes() / 1024) + "K"); 147 148 HeapSummary sum = new HeapSummary(); 149 sum.printG1HeapSummary(this); 150 } 151 152 public void printRegionDetails(PrintStream tty) { 153 PrintRegionClosure prc = new PrintRegionClosure(tty); 154 heapRegionIterate(prc); 155 } 156 157 public G1CollectedHeap(Address addr) { | 1 /* 2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.gc.g1; 26 27 import java.io.PrintStream; 28 import java.util.Iterator; 29 import java.util.Observable; 30 import java.util.Observer; 31 32 import sun.jvm.hotspot.debugger.Address; 33 import sun.jvm.hotspot.gc.shared.CollectedHeap; 34 import sun.jvm.hotspot.gc.shared.CollectedHeapName; 35 import sun.jvm.hotspot.gc.shared.LiveRegionsClosure; 36 import sun.jvm.hotspot.gc.shared.PrintRegionClosure; 37 import sun.jvm.hotspot.gc.shared.SpaceClosure; 38 import sun.jvm.hotspot.memory.MemRegion; 39 import sun.jvm.hotspot.runtime.VM; 40 import sun.jvm.hotspot.runtime.VMObjectFactory; 41 import sun.jvm.hotspot.types.AddressField; 42 import sun.jvm.hotspot.types.CIntegerField; 43 import sun.jvm.hotspot.types.Type; 44 import sun.jvm.hotspot.types.TypeDataBase; 45 import sun.jvm.hotspot.tools.HeapSummary; 46 47 // Mirror class for G1CollectedHeap. 48 49 public class G1CollectedHeap extends CollectedHeap { 50 // HeapRegionManager _hrm; 51 static private AddressField hrmField; 52 // MemRegion _g1_reserved; 53 static private long g1ReservedFieldOffset; 54 // size_t _summary_bytes_used; 55 static private CIntegerField summaryBytesUsedField; 56 // G1MonitoringSupport* _g1mm; 57 static private AddressField g1mmField; 119 public HeapRegionSetBase humongousSet() { 120 Address humongousSetAddr = addr.addOffsetTo(humongousSetFieldOffset); 121 return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class, 122 humongousSetAddr); 123 } 124 125 private Iterator<HeapRegion> heapRegionIterator() { 126 return hrm().heapRegionIterator(); 127 } 128 129 public void heapRegionIterate(SpaceClosure scl) { 130 Iterator<HeapRegion> iter = heapRegionIterator(); 131 while (iter.hasNext()) { 132 HeapRegion hr = iter.next(); 133 scl.doSpace(hr); 134 } 135 } 136 137 public CollectedHeapName kind() { 138 return CollectedHeapName.G1; 139 } 140 141 @Override 142 public void liveRegionsIterate(LiveRegionsClosure closure) { 143 Iterator<HeapRegion> iter = heapRegionIterator(); 144 while (iter.hasNext()) { 145 HeapRegion hr = iter.next(); 146 closure.doLiveRegions(hr); 147 } 148 } 149 150 @Override 151 public void printOn(PrintStream tty) { 152 MemRegion mr = reservedRegion(); 153 154 tty.print("garbage-first heap"); 155 tty.print(" [" + mr.start() + ", " + mr.end() + "]"); 156 tty.println(" region size " + (HeapRegion.grainBytes() / 1024) + "K"); 157 158 HeapSummary sum = new HeapSummary(); 159 sum.printG1HeapSummary(this); 160 } 161 162 public void printRegionDetails(PrintStream tty) { 163 PrintRegionClosure prc = new PrintRegionClosure(tty); 164 heapRegionIterate(prc); 165 } 166 167 public G1CollectedHeap(Address addr) { |