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src/share/vm/jfr/leakprofiler/checkpoint/objectSampleWriter.hpp

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rev 9055 : 8214542: JFR: Old Object Sample event slow on a deep heap in debug builds
Reviewed-by: egahlin, rwestberg


  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 #ifndef SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEWRITER_HPP
  26 #define SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEWRITER_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 class Edge;
  31 class EdgeStore;
  32 class JfrCheckpointWriter;
  33 class RoutableEdge;
  34 
  35 class ObjectSampleWriter : public StackObj {
  36  private:
  37   JfrCheckpointWriter& _writer;
  38   const EdgeStore* const _store;
  39 
  40   void write(const RoutableEdge* edge);
  41   void write_chain(const RoutableEdge& edge);
  42 
  43  public:
  44   ObjectSampleWriter(JfrCheckpointWriter& writer, const EdgeStore* store);
  45   ~ObjectSampleWriter();
  46 
  47   bool operator()(const RoutableEdge& edge);
  48 };
  49 
  50 #endif // SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEWRITER_HPP


  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 #ifndef SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEWRITER_HPP
  26 #define SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEWRITER_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 class Edge;
  31 class EdgeStore;
  32 class JfrCheckpointWriter;
  33 class StoredEdge;
  34 
  35 class ObjectSampleWriter : public StackObj {
  36  private:
  37   JfrCheckpointWriter& _writer;
  38   EdgeStore* const _store;
  39   void write(const StoredEdge* edge);



  40  public:
  41   ObjectSampleWriter(JfrCheckpointWriter& writer, EdgeStore* store);
  42   ~ObjectSampleWriter();
  43   bool operator()(StoredEdge& edge);

  44 };
  45 
  46 #endif // SHARE_VM_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEWRITER_HPP
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