/*

 * Copyright (c) 2012, 2019, 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_JFR_RECORDER_REPOSITORY_JFRRCHUNK_HPP

#define SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNK_HPP

#include "jfr/utilities/jfrAllocation.hpp"

class JfrChunk : public JfrCHeapObj {

  friend class JfrChunkWriter;

  friend class JfrChunkHeadWriter;

 private:

  char* _path;

  int64_t _start_ticks;

  int64_t _previous_start_ticks;

  int64_t _start_nanos;

  int64_t _previous_start_nanos;

  int64_t _last_update_nanos;

  int64_t _last_checkpoint_offset;

  int64_t _last_metadata_offset;

  mutable u1 _generation;

  JfrChunk();

  ~JfrChunk();

  void reset();

  const char* magic() const;

  u2 major_version() const;

  u2 minor_version() const;

  int64_t cpu_frequency() const;

  u2 capabilities() const;

  void update_start_ticks();

  void update_start_nanos();

  void save_current_and_update_start_ticks();

  void save_current_and_update_start_nanos();

  int64_t last_checkpoint_offset() const;

  void set_last_checkpoint_offset(int64_t offset);

  int64_t last_metadata_offset() const;

  void set_last_metadata_offset(int64_t offset);

  bool has_metadata() const;

  int64_t start_ticks() const;

  int64_t start_nanos() const;

  int64_t previous_start_ticks() const;

  int64_t previous_start_nanos() const;

  int64_t last_chunk_duration() const;

  void set_time_stamp();

  void update();

  void set_path(const char* path);

  const char* path() const;

  bool is_started() const;

  bool is_finished() const;

  int64_t duration() const;

  u1 generation() const;

  u1 next_generation() const;

};

#endif // SHARE_VM_JFR_RECORDER_REPOSITORY_JFRRCHUNK_HPP