/*

 * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef SHARE_VM_GC_SHARED_GCSTATS_HPP

#define SHARE_VM_GC_SHARED_GCSTATS_HPP

#include "gc/shared/gcUtil.hpp"

class GCStats : public CHeapObj<mtGC> {

 protected:

  // Avg amount promoted; used for avoiding promotion undo

  // This class does not update deviations if the sample is zero.

  AdaptivePaddedNoZeroDevAverage*   _avg_promoted;

 public:

  GCStats();

  enum Name {

    GCStatsKind,

    CMSGCStatsKind

  };

  virtual Name kind() {

    return GCStatsKind;

  }

  AdaptivePaddedNoZeroDevAverage*  avg_promoted() const { return _avg_promoted; }

  // Average in bytes

  size_t average_promoted_in_bytes() const {

    return (size_t)_avg_promoted->average();

  }

  // Padded average in bytes

  size_t padded_average_promoted_in_bytes() const {

    return (size_t)_avg_promoted->padded_average();

  }

};

class CMSGCStats : public GCStats {

 public:

  CMSGCStats();

  virtual Name kind() {

    return CMSGCStatsKind;

  }

};

#endif // SHARE_VM_GC_SHARED_GCSTATS_HPP