agent/src/share/classes/sun/jvm/hotspot/gc/g1/G1CollectedHeap.java

rev 8719 : 8131319: Move G1Allocator::_summary_bytes_used back to G1CollectedHeap
Reviewed-by:
rev 8720 : [mq]: fix-sa-agent

@@ -34,22 +34,23 @@
 import sun.jvm.hotspot.gc.shared.SpaceClosure;
 import sun.jvm.hotspot.memory.MemRegion;
 import sun.jvm.hotspot.runtime.VM;
 import sun.jvm.hotspot.runtime.VMObjectFactory;
 import sun.jvm.hotspot.types.AddressField;
+import sun.jvm.hotspot.types.CIntegerField;
 import sun.jvm.hotspot.types.Type;
 import sun.jvm.hotspot.types.TypeDataBase;
 
 // Mirror class for G1CollectedHeap.
 
 public class G1CollectedHeap extends CollectedHeap {
     // HeapRegionManager _hrm;
     static private long hrmFieldOffset;
     // MemRegion _g1_reserved;
     static private long g1ReservedFieldOffset;
-    // G1Allocator* _allocator
-    static private AddressField g1Allocator;
+    // size_t _summary_bytes_used;
+    static private CIntegerField summaryBytesUsedField;
     // G1MonitoringSupport* _g1mm;
     static private AddressField g1mmField;
     // HeapRegionSet _old_set;
     static private long oldSetFieldOffset;
     // HeapRegionSet _humongous_set;

@@ -65,22 +66,22 @@
 
     static private synchronized void initialize(TypeDataBase db) {
         Type type = db.lookupType("G1CollectedHeap");
 
         hrmFieldOffset = type.getField("_hrm").getOffset();
-        g1Allocator = type.getAddressField("_allocator");
+        summaryBytesUsedField = type.getCIntegerField("_summary_bytes_used");
         g1mmField = type.getAddressField("_g1mm");
         oldSetFieldOffset = type.getField("_old_set").getOffset();
         humongousSetFieldOffset = type.getField("_humongous_set").getOffset();
     }
 
     public long capacity() {
         return hrm().capacity();
     }
 
     public long used() {
-        return allocator().getSummaryBytes();
+        return summaryBytesUsedField.getValue(addr);
     }
 
     public long n_regions() {
         return hrm().length();
     }

@@ -94,15 +95,10 @@
     public G1MonitoringSupport g1mm() {
         Address g1mmAddr = g1mmField.getValue(addr);
         return (G1MonitoringSupport) VMObjectFactory.newObject(G1MonitoringSupport.class, g1mmAddr);
     }
 
-    public G1Allocator allocator() {
-        Address g1AllocatorAddr = g1Allocator.getValue(addr);
-        return (G1Allocator) VMObjectFactory.newObject(G1Allocator.class, g1AllocatorAddr);
-    }
-
     public HeapRegionSetBase oldSet() {
         Address oldSetAddr = addr.addOffsetTo(oldSetFieldOffset);
         return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class,
                                                              oldSetAddr);
     }