1 /*
 2 * Copyright (c) 2019, 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_JFREPOCHSYNCHRONIZATION_HPP
26 #define SHARE_JFR_SUPPORT_JFREPOCHSYNCHRONIZATION_HPP
27 
28 /*
29  * JavaThreads running _thread_in_native (Compiler threads) must synchronize
30  * with the upcoming epoch in case there is an epoch shift in-progress.
31  */
32 class JfrEpochSynchronization {
33  public:
34   JfrEpochSynchronization();
35 };
36 
37 #endif // SHARE_JFR_SUPPORT_JFREPOCHSYNCHRONIZATION_HPP