allocationSite.hpp revision 6853:91eeb8807a03 
1/*
2 * Copyright (c) 2014, 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
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23 */
24
25#ifndef SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
26#define SHARE_VM_SERVICES_ALLOCATION_SITE_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 VALUE_OBJ_CLASS_SPEC {
34 private:
35  NativeCallStack  _call_stack;
36  E                e;
37 public:
38  AllocationSite(const NativeCallStack& stack) : _call_stack(stack) { }
39  int hash() const { return _call_stack.hash(); }
40  bool equals(const NativeCallStack& stack) const {
41    return _call_stack.equals(stack);
42  }
43
44  bool equals(const AllocationSite<E>& other) const {
45    return other.equals(_call_stack);
46  }
47
48  const NativeCallStack* call_stack() const {
49    return &_call_stack;
50  }
51
52  // Information regarding this allocation
53  E* data()             { return &e; }
54  const E* peek() const { return &e; }
55};
56
57#endif  // SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
58