1/*
2 * Copyright (c) 2000, 2015, 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_GC_SHARED_GCLOCKER_INLINE_HPP
26#define SHARE_VM_GC_SHARED_GCLOCKER_INLINE_HPP
27
28#include "gc/shared/gcLocker.hpp"
29
30inline void GCLocker::lock_critical(JavaThread* thread) {
31  if (!thread->in_critical()) {
32    if (needs_gc()) {
33      // jni_lock call calls enter_critical under the lock so that the
34      // global lock count and per thread count are in agreement.
35      jni_lock(thread);
36      return;
37    }
38    increment_debug_jni_lock_count();
39  }
40  thread->enter_critical();
41}
42
43inline void GCLocker::unlock_critical(JavaThread* thread) {
44  if (thread->in_last_critical()) {
45    if (needs_gc()) {
46      // jni_unlock call calls exit_critical under the lock so that
47      // the global lock count and per thread count are in agreement.
48      jni_unlock(thread);
49      return;
50    }
51    decrement_debug_jni_lock_count();
52  }
53  thread->exit_critical();
54}
55
56#endif // SHARE_VM_GC_SHARED_GCLOCKER_INLINE_HPP
57