1 /*

     2  * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  *

    23  */

    24 

    25 #ifndef SHARE_VM_JFR_SUPPORT_JFREVENTCLASS_HPP

    26 #define SHARE_VM_JFR_SUPPORT_JFREVENTCLASS_HPP

    27 

    28 #include "jni.h"

    29 #include "memory/allocation.hpp"

    30 

    31 class Klass;

    32 

    33 //

    34 // For convenient access to the jdk.jfr.Event klass hierarchy.

    35 //

    36 class JdkJfrEvent : AllStatic {

    37  public:

    38   // jdk.jfr.Event

    39   static bool is(const Klass* k);

    40   static bool is(const jclass jc);

    41   static void tag_as(const Klass* k);

    42 

    43   // jdk.jfr.Event subklasses

    44   static bool is_subklass(const Klass* k);

    45   static bool is_subklass(const jclass jc);

    46   static void tag_as_subklass(const Klass* k);

    47   static void tag_as_subklass(const jclass jc);

    48 

    49   // jdk.jfr.Event hierarchy

    50   static bool is_a(const Klass* k);

    51   static bool is_a(const jclass jc);

    52 

    53   // klasses that host a jdk.jfr.Event

    54   static bool is_host(const Klass* k);

    55   static bool is_host(const jclass jc);

    56   static void tag_as_host(const Klass* k);

    57   static void tag_as_host(const jclass jc);

    58 

    59   // in the set of classes made visible to java

    60   static bool is_visible(const Klass* k);

    61   static bool is_visible(const jclass jc);

    62 };

    63 

    64 #endif // SHARE_VM_JFR_SUPPORT_JFREVENTCLASS_HPP