1/*
2 * Copyright (c) 2017, 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_ZNMETHODDATA_HPP
25#define SHARE_GC_Z_ZNMETHODDATA_HPP
26
27#include "gc/z/zAttachedArray.hpp"
28#include "gc/z/zLock.hpp"
29#include "memory/allocation.hpp"
30#include "oops/oopsHierarchy.hpp"
31#include "utilities/globalDefinitions.hpp"
32
33class nmethod;
34template <typename T> class GrowableArray;
35
36class ZNMethodDataOops {
37private:
38 typedef ZAttachedArray<ZNMethodDataOops, oop*> AttachedArray;
39
40 const AttachedArray _immediates;
41 const bool _has_non_immediates;
42
43 ZNMethodDataOops(const GrowableArray<oop*>& immediates, bool has_non_immediates);
44
45public:
46 static ZNMethodDataOops* create(const GrowableArray<oop*>& immediates, bool has_non_immediates);
47 static void destroy(ZNMethodDataOops* oops);
48
49 size_t immediates_count() const;
50 oop** immediates_begin() const;
51 oop** immediates_end() const;
52
53 bool has_non_immediates() const;
54};
55
56class ZNMethodData : public CHeapObj<mtGC> {
57private:
58 ZReentrantLock _lock;
59 ZNMethodDataOops* volatile _oops;
60
61public:
62 ZNMethodData();
63 ~ZNMethodData();
64
65 ZReentrantLock* lock();
66
67 ZNMethodDataOops* oops() const;
68 ZNMethodDataOops* swap_oops(ZNMethodDataOops* oops);
69};
70
71#endif // SHARE_GC_Z_ZNMETHODDATA_HPP
72