24 25 package sun.jvm.hotspot.gc.g1; 26 27 import java.util.Iterator; 28 import java.util.Observable; 29 import java.util.Observer; 30 31 import sun.jvm.hotspot.debugger.Address; 32 import sun.jvm.hotspot.runtime.VM; 33 import sun.jvm.hotspot.runtime.VMObject; 34 import sun.jvm.hotspot.runtime.VMObjectFactory; 35 import sun.jvm.hotspot.types.AddressField; 36 import sun.jvm.hotspot.types.CIntegerField; 37 import sun.jvm.hotspot.types.Type; 38 import sun.jvm.hotspot.types.TypeDataBase; 39 40 // Mirror class for HeapRegionSetBase. Represents a group of regions. 41 42 public class HeapRegionSetBase extends VMObject { 43 44 static private long countField; 45 46 static { 47 VM.registerVMInitializedObserver(new Observer() { 48 public void update(Observable o, Object data) { 49 initialize(VM.getVM().getTypeDataBase()); 50 } 51 }); 52 } 53 54 static private synchronized void initialize(TypeDataBase db) { 55 Type type = db.lookupType("HeapRegionSetBase"); 56 57 countField = type.getField("_count").getOffset(); 58 } 59 60 61 public HeapRegionSetCount count() { 62 Address countFieldAddr = addr.addOffsetTo(countField); 63 return (HeapRegionSetCount) VMObjectFactory.newObject(HeapRegionSetCount.class, countFieldAddr); 64 } 65 66 public HeapRegionSetBase(Address addr) { 67 super(addr); 68 } 69 } | 24 25 package sun.jvm.hotspot.gc.g1; 26 27 import java.util.Iterator; 28 import java.util.Observable; 29 import java.util.Observer; 30 31 import sun.jvm.hotspot.debugger.Address; 32 import sun.jvm.hotspot.runtime.VM; 33 import sun.jvm.hotspot.runtime.VMObject; 34 import sun.jvm.hotspot.runtime.VMObjectFactory; 35 import sun.jvm.hotspot.types.AddressField; 36 import sun.jvm.hotspot.types.CIntegerField; 37 import sun.jvm.hotspot.types.Type; 38 import sun.jvm.hotspot.types.TypeDataBase; 39 40 // Mirror class for HeapRegionSetBase. Represents a group of regions. 41 42 public class HeapRegionSetBase extends VMObject { 43 44 // uint _length 45 static private CIntegerField lengthField; 46 47 static { 48 VM.registerVMInitializedObserver(new Observer() { 49 public void update(Observable o, Object data) { 50 initialize(VM.getVM().getTypeDataBase()); 51 } 52 }); 53 } 54 55 static private synchronized void initialize(TypeDataBase db) { 56 Type type = db.lookupType("HeapRegionSetBase"); 57 58 lengthField = type.getCIntegerField("_length"); 59 } 60 61 public long length() { 62 return lengthField.getValue(addr); 63 } 64 65 public HeapRegionSetBase(Address addr) { 66 super(addr); 67 } 68 } |