/*

 * Copyright (c) 2016, 2018, 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_CHECKPOINT_TYPES_JFRTYPEMANAGER_HPP

#define SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPEMANAGER_HPP

#include "jfr/metadata/jfrSerializer.hpp"

#include "jfr/utilities/jfrAllocation.hpp"

#include "jfr/utilities/jfrDoublyLinkedList.hpp"

#include "jfr/utilities/jfrIterator.hpp"

class JfrSerializerRegistration : public JfrCHeapObj {

 private:

  JfrSerializerRegistration* _next;

  JfrSerializerRegistration* _prev;

  JfrSerializer* _serializer;

  mutable JfrCheckpointBlobHandle _cache;

  JfrTypeId _id;

  bool _permit_cache;

 public:

  JfrSerializerRegistration(JfrTypeId id, bool permit_cache, JfrSerializer* serializer);

  ~JfrSerializerRegistration();

  JfrSerializerRegistration* next() const;

  void set_next(JfrSerializerRegistration* next);

  JfrSerializerRegistration* prev() const;

  void set_prev(JfrSerializerRegistration* prev);

  void invoke_serializer(JfrCheckpointWriter& writer) const;

  JfrTypeId id() const;

};

class JfrTypeManager : public JfrCHeapObj {

  friend class JfrCheckpointManager;

 public:

  typedef JfrDoublyLinkedList<JfrSerializerRegistration> List;

  typedef StopOnNullIterator<const List> Iterator;

 private:

  List _types;

  List _safepoint_types;

  ~JfrTypeManager();

  bool initialize();

  size_t number_of_registered_types() const;

  void write_types(JfrCheckpointWriter& writer) const;

  void write_safepoint_types(JfrCheckpointWriter& writer) const;

  void write_type_set() const;

  void write_type_set_for_unloaded_classes() const;

  void create_thread_checkpoint(JavaThread* jt) const;

  void write_thread_checkpoint(JavaThread* jt) const;

  bool register_serializer(JfrTypeId id, bool require_safepoint, bool permit_cache, JfrSerializer* serializer);

};

#endif // SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPEMANAGER_HPP