1/*
2 * Copyright (c) 2002, 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.
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23 */
24
25#ifndef SHARE_GC_CMS_CMSLOCKVERIFIER_HPP
26#define SHARE_GC_CMS_CMSLOCKVERIFIER_HPP
27
28#include "runtime/mutex.hpp"
29
30///////////// Locking verification specific to CMS //////////////
31// Much like "assert_lock_strong()", except
32// that it relaxes the assertion somewhat for the parallel GC case, where
33// main GC thread or the CMS thread might hold the lock on behalf of
34// the parallel threads.
35class CMSLockVerifier: AllStatic {
36 public:
37 static void assert_locked(const Mutex* lock, const Mutex* p_lock1, const Mutex* p_lock2)
38 PRODUCT_RETURN;
39 static void assert_locked(const Mutex* lock, const Mutex* p_lock) {
40 assert_locked(lock, p_lock, NULL);
41 }
42 static void assert_locked(const Mutex* lock) {
43 assert_locked(lock, NULL);
44 }
45};
46
47#endif // SHARE_GC_CMS_CMSLOCKVERIFIER_HPP
48