1 /*
 2 * Copyright (c) 2020, 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_JFR_SUPPORT_JFRJAVATHREAD_HPP
26 #define SHARE_JFR_SUPPORT_JFRJAVATHREAD_HPP
27 
28 #include "jfr/utilities/jfrTypes.hpp"
29 #include "memory/allocation.hpp"
30 #include "oops/oopsHierarchy.hpp"
31 
32 class JavaThread;
33 
34 class JfrJavaThread : public AllStatic {
35   friend class JfrRecorder;
36  private:
37   static bool initialize(bool notify_virtual_threads);
38  public:
39   static traceid contextual_thread_id(const JavaThread* jt, bool* is_virtual = NULL);
40   static traceid virtual_thread_id(oop vthread, const JavaThread* jt);
41   static traceid java_thread_id(const JavaThread* jt);
42   static bool is_virtual(const JavaThread* jt);
43   static oop virtual_thread(const JavaThread* jt);
44 };
45 
46 #endif // SHARE_JFR_SUPPORT_JFRJAVATHREAD_HPP