/*

 * 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.

 *

 */

#include "jfr/utilities/jfrAllocation.hpp"

class JfrStorageControl : public JfrCHeapObj {

 private:

  size_t _global_count_total;

  size_t _full_count;

  volatile size_t _global_lease_count;

  volatile size_t _dead_count;

  size_t _to_disk_threshold;

  size_t _in_memory_discard_threshold;

  size_t _global_lease_threshold;

  size_t _scavenge_threshold;

  bool _to_disk;

 public:

  JfrStorageControl(size_t global_count_total, size_t in_memory_discard_threshold);

  void set_to_disk(bool enable);

  bool to_disk() const;

  size_t full_count() const;

  size_t increment_full();

  size_t decrement_full();

  void   reset_full();

  bool should_post_buffer_full_message() const;

  bool should_discard() const;

  size_t global_lease_count() const;

  size_t increment_leased();

  size_t decrement_leased();

  bool is_global_lease_allowed() const;

  size_t dead_count() const;

  size_t increment_dead();

  size_t decrement_dead();

  void set_scavenge_threshold(size_t number_of_dead_buffers);

  bool should_scavenge() const;

};