1/*
2 * Copyright (c) 2014, 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.
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23 */
24
25#ifndef SHARE_SERVICES_ALLOCATIONSITE_HPP
26#define SHARE_SERVICES_ALLOCATIONSITE_HPP
27
28#include "memory/allocation.hpp"
29#include "utilities/nativeCallStack.hpp"
30
31// Allocation site represents a code path that makes a memory
32// allocation
33template <class E> class AllocationSite {
34 private:
35 NativeCallStack _call_stack;
36 E e;
37 MEMFLAGS _flag;
38 public:
39 AllocationSite(const NativeCallStack& stack, MEMFLAGS flag) : _call_stack(stack), _flag(flag) { }
40 int hash() const { return _call_stack.hash(); }
41 bool equals(const NativeCallStack& stack) const {
42 return _call_stack.equals(stack);
43 }
44
45 bool equals(const AllocationSite<E>& other) const {
46 return other.equals(_call_stack);
47 }
48
49 const NativeCallStack* call_stack() const {
50 return &_call_stack;
51 }
52
53 // Information regarding this allocation
54 E* data() { return &e; }
55 const E* peek() const { return &e; }
56
57 MEMFLAGS flag() const { return _flag; }
58};
59
60#endif // SHARE_SERVICES_ALLOCATIONSITE_HPP
61