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

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   1 /*
   2  * Copyright (c) 2011, 2015, 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  *


  70 
  71         hrmFieldOffset = type.getField("_hrm").getOffset();
  72         summaryBytesUsedField = type.getCIntegerField("_summary_bytes_used");
  73         g1mmField = type.getAddressField("_g1mm");
  74         oldSetFieldOffset = type.getField("_old_set").getOffset();
  75         humongousSetFieldOffset = type.getField("_humongous_set").getOffset();
  76     }
  77 
  78     public long capacity() {
  79         return hrm().capacity();
  80     }
  81 
  82     public long used() {
  83         return summaryBytesUsedField.getValue(addr);
  84     }
  85 
  86     public long n_regions() {
  87         return hrm().length();
  88     }
  89 
  90     private HeapRegionManager hrm() {
  91         Address hrmAddr = addr.addOffsetTo(hrmFieldOffset);
  92         return (HeapRegionManager) VMObjectFactory.newObject(HeapRegionManager.class,
  93                                                          hrmAddr);
  94     }
  95 
  96     public G1MonitoringSupport g1mm() {
  97         Address g1mmAddr = g1mmField.getValue(addr);
  98         return (G1MonitoringSupport) VMObjectFactory.newObject(G1MonitoringSupport.class, g1mmAddr);
  99     }
 100 
 101     public HeapRegionSetBase oldSet() {
 102         Address oldSetAddr = addr.addOffsetTo(oldSetFieldOffset);
 103         return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class,
 104                                                              oldSetAddr);
 105     }
 106 
 107     public HeapRegionSetBase humongousSet() {
 108         Address humongousSetAddr = addr.addOffsetTo(humongousSetFieldOffset);
 109         return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class,
 110                                                              humongousSetAddr);


   1 /*
   2  * Copyright (c) 2011, 2017, 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  *


  70 
  71         hrmFieldOffset = type.getField("_hrm").getOffset();
  72         summaryBytesUsedField = type.getCIntegerField("_summary_bytes_used");
  73         g1mmField = type.getAddressField("_g1mm");
  74         oldSetFieldOffset = type.getField("_old_set").getOffset();
  75         humongousSetFieldOffset = type.getField("_humongous_set").getOffset();
  76     }
  77 
  78     public long capacity() {
  79         return hrm().capacity();
  80     }
  81 
  82     public long used() {
  83         return summaryBytesUsedField.getValue(addr);
  84     }
  85 
  86     public long n_regions() {
  87         return hrm().length();
  88     }
  89 
  90     public HeapRegionManager hrm() {
  91         Address hrmAddr = addr.addOffsetTo(hrmFieldOffset);
  92         return (HeapRegionManager) VMObjectFactory.newObject(HeapRegionManager.class,
  93                                                          hrmAddr);
  94     }
  95 
  96     public G1MonitoringSupport g1mm() {
  97         Address g1mmAddr = g1mmField.getValue(addr);
  98         return (G1MonitoringSupport) VMObjectFactory.newObject(G1MonitoringSupport.class, g1mmAddr);
  99     }
 100 
 101     public HeapRegionSetBase oldSet() {
 102         Address oldSetAddr = addr.addOffsetTo(oldSetFieldOffset);
 103         return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class,
 104                                                              oldSetAddr);
 105     }
 106 
 107     public HeapRegionSetBase humongousSet() {
 108         Address humongousSetAddr = addr.addOffsetTo(humongousSetFieldOffset);
 109         return (HeapRegionSetBase) VMObjectFactory.newObject(HeapRegionSetBase.class,
 110                                                              humongousSetAddr);


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