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src/share/vm/jfr/leakprofiler/stopOperation.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


   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  *
  23  */
  24 
  25 #ifndef SHARE_VM_LEAKPROFILER_STOPOPERATION_HPP
  26 #define SHARE_VM_LEAKPROFILER_STOPOPERATION_HPP
  27 
  28 #include "jfr/leakprofiler/leakProfiler.hpp"
  29 #include "jfr/leakprofiler/sampling/objectSampler.hpp"
  30 #include "jfr/recorder/service/jfrOptionSet.hpp"
  31 #include "runtime/vm_operations.hpp"
  32 
  33 // Safepoint operation for stopping leak profiler object sampler
  34 class StopOperation : public VM_Operation {
  35  public:
  36   StopOperation() {}
  37 
  38   Mode evaluation_mode() const {
  39     return _safepoint;
  40   }
  41 
  42   VMOp_Type type() const {
  43     return VMOp_GC_HeapInspection;
  44   }
  45 
  46   virtual void doit() {
  47     assert(LeakProfiler::is_running(), "invariant");
  48     ObjectSampler* object_sampler = LeakProfiler::object_sampler();
  49     delete object_sampler;
  50     LeakProfiler::set_object_sampler(NULL);
  51     if (LogJFR && Verbose) tty->print_cr( "Object sampling stopped");
  52   }
  53 };
  54 
  55 #endif // SHARE_VM_LEAKPROFILER_STOPOPERATION_HPP


   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  *
  23  */
  24 
  25 #ifndef SHARE_VM_LEAKPROFILER_STOPOPERATION_HPP
  26 #define SHARE_VM_LEAKPROFILER_STOPOPERATION_HPP
  27 

  28 #include "jfr/leakprofiler/sampling/objectSampler.hpp"
  29 #include "jfr/leakprofiler/utilities/vmOperation.hpp"

  30 
  31 // Safepoint operation for stopping and destroying the leak profiler object sampler
  32 class StopOperation : public OldObjectVMOperation {
  33  public:










  34   virtual void doit() {
  35     ObjectSampler::destroy();




  36   }
  37 };
  38 
  39 #endif // SHARE_VM_LEAKPROFILER_STOPOPERATION_HPP
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