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 #include "precompiled.hpp"
  26 #include "jfr/jfrEvents.hpp"
  27 #include "jfr/leakprofiler/sampling/objectSample.hpp"
  28 #include "jfr/leakprofiler/sampling/objectSampler.hpp"
  29 #include "jfr/leakprofiler/sampling/sampleList.hpp"
  30 #include "jfr/leakprofiler/sampling/samplePriorityQueue.hpp"
  31 #include "jfr/recorder/jfrEventSetting.inline.hpp"
  32 #include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp"
  33 #include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp"
  34 #include "jfr/support/jfrThreadLocal.hpp"
  35 #include "jfr/utilities/jfrTryLock.hpp"
  36 #include "logging/log.hpp"
  37 #include "memory/universe.hpp"
  38 #include "oops/oop.inline.hpp"
  39 #include "runtime/atomic.hpp"
  40 #include "runtime/orderAccess.hpp"
  41 #include "runtime/safepoint.hpp"
  42 #include "runtime/thread.hpp"
  43 
  44 static ObjectSampler* _instance = NULL;
  45 
  46 static ObjectSampler& instance() {
  47   assert(_instance != NULL, "invariant");
  48   return *_instance;
  49 }
  50 
  51 ObjectSampler::ObjectSampler(size_t size) :
  52   _priority_queue(new SamplePriorityQueue(size)),
  53   _list(new SampleList(size)),
  54   _last_sweep(JfrTicks::now()),
  55   _total_allocated(0),

  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 #include "precompiled.hpp"
  26 #include "jfr/jfrEvents.hpp"
  27 #include "jfr/leakprofiler/sampling/objectSample.hpp"
  28 #include "jfr/leakprofiler/sampling/objectSampler.hpp"
  29 #include "jfr/leakprofiler/sampling/sampleList.hpp"
  30 #include "jfr/leakprofiler/sampling/samplePriorityQueue.hpp"
  31 #include "jfr/recorder/jfrEventSetting.inline.hpp"
  32 #include "jfr/recorder/checkpoint/jfrCheckpointManager.hpp"
  33 #include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp"
  34 #include "jfr/support/jfrThreadLocal.hpp"
  35 #include "jfr/utilities/jfrTryLock.inline.hpp"
  36 #include "logging/log.hpp"
  37 #include "memory/universe.hpp"
  38 #include "oops/oop.inline.hpp"
  39 #include "runtime/atomic.hpp"
  40 #include "runtime/orderAccess.hpp"
  41 #include "runtime/safepoint.hpp"
  42 #include "runtime/thread.hpp"
  43 
  44 static ObjectSampler* _instance = NULL;
  45 
  46 static ObjectSampler& instance() {
  47   assert(_instance != NULL, "invariant");
  48   return *_instance;
  49 }
  50 
  51 ObjectSampler::ObjectSampler(size_t size) :
  52   _priority_queue(new SamplePriorityQueue(size)),
  53   _list(new SampleList(size)),
  54   _last_sweep(JfrTicks::now()),
  55   _total_allocated(0),