23 */ 24 25 package sun.jvm.hotspot.gc_implementation.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 // uint _length; 44 static private CIntegerField lengthField; 45 // uint _region_num; 46 static private CIntegerField regionNumField; 47 // size_t _total_used_bytes; 48 static private CIntegerField totalUsedBytesField; 49 50 static { 51 VM.registerVMInitializedObserver(new Observer() { 52 public void update(Observable o, Object data) { 53 initialize(VM.getVM().getTypeDataBase()); 54 } 55 }); 56 } 57 58 static private synchronized void initialize(TypeDataBase db) { 59 Type type = db.lookupType("HeapRegionSetBase"); 60 61 lengthField = type.getCIntegerField("_length"); 62 regionNumField = type.getCIntegerField("_region_num"); 63 totalUsedBytesField = type.getCIntegerField("_total_used_bytes"); 64 } 65 66 public long length() { 67 return lengthField.getValue(addr); 68 } 69 70 public long regionNum() { 71 return regionNumField.getValue(addr); 72 } 73 74 public long totalUsedBytes() { 75 return totalUsedBytesField.getValue(addr); 76 } 77 78 public HeapRegionSetBase(Address addr) { 79 super(addr); 80 } 81 } | 23 */ 24 25 package sun.jvm.hotspot.gc_implementation.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, 64 countFieldAddr); 65 } 66 67 public HeapRegionSetBase(Address addr) { 68 super(addr); 69 } 70 } |