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#ifndef SHARE_GC_Z_ZSAFEDELETE_HPP
25#define SHARE_GC_Z_ZSAFEDELETE_HPP
26
27#include "gc/z/zArray.hpp"
28#include "gc/z/zLock.hpp"
29#include "metaprogramming/removeExtent.hpp"
30
31template <typename T>
32class ZSafeDelete {
33private:
34 typedef typename RemoveExtent<T>::type ItemT;
35
36 ZLock _lock;
37 uint64_t _enabled;
38 ZArray<ItemT*> _deferred;
39
40 bool deferred_delete(ItemT* item);
41 void immediate_delete(ItemT* item);
42
43public:
44 ZSafeDelete();
45
46 void enable_deferred_delete();
47 void disable_deferred_delete();
48
49 void operator()(ItemT* item);
50};
51
52#endif // SHARE_GC_Z_ZSAFEDELETE_HPP
53