view src/hotspot/share/jfr/support/jfrEventClass.hpp @ 50662:caf115bb98ad

8199712: Flight Recorder Reviewed-by: coleenp, ihse, erikj, dsamersoff, mseledtsov, egahlin, mgronlun Contributed-by: erik.gahlin@oracle.com, markus.gronlund@oracle.com
author egahlin
date Tue, 15 May 2018 20:24:34 +0200
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children 9807daeb47c4
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/*
 * Copyright (c) 2012, 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_SUPPORT_JFREVENTCLASS_HPP
#define SHARE_VM_JFR_SUPPORT_JFREVENTCLASS_HPP

#include "jni.h"
#include "memory/allocation.hpp"

class Klass;

//
// For convenient access to the jdk.jfr.Event klass hierarchy.
//
class JdkJfrEvent : AllStatic {
 public:
  // jdk.jfr.Event
  static bool is(const Klass* k);
  static bool is(const jclass jc);
  static void tag_as(const Klass* k);

  // jdk.jfr.Event subklasses
  static bool is_subklass(const Klass* k);
  static bool is_subklass(const jclass jc);
  static void tag_as_subklass(const Klass* k);
  static void tag_as_subklass(const jclass jc);

  // jdk.jfr.Event hierarchy
  static bool is_a(const Klass* k);
  static bool is_a(const jclass jc);

  // klasses that host a jdk.jfr.Event
  static bool is_host(const Klass* k);
  static bool is_host(const jclass jc);
  static void tag_as_host(const Klass* k);
  static void tag_as_host(const jclass jc);

  // in the set of classes made visible to java
  static bool is_visible(const Klass* k);
  static bool is_visible(const jclass jc);
};

#endif // SHARE_VM_JFR_SUPPORT_JFREVENTCLASS_HPP