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20360
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
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26 #define SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "utilities/nativeCallStack.hpp"
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30
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31 // Allocation site represents a code path that makes a memory
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32 // allocation
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33 template <class E> class AllocationSite VALUE_OBJ_CLASS_SPEC {
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34 private:
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35 NativeCallStack _call_stack;
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36 E e;
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37 public:
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38 AllocationSite(const NativeCallStack& stack) : _call_stack(stack) { }
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39 int hash() const { return _call_stack.hash(); }
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40 bool equals(const NativeCallStack& stack) const {
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41 return _call_stack.equals(stack);
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42 }
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43
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44 bool equals(const AllocationSite<E>& other) const {
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45 return other.equals(_call_stack);
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46 }
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47
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48 const NativeCallStack* call_stack() const {
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49 return &_call_stack;
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50 }
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51
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52 // Information regarding this allocation
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53 E* data() { return &e; }
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54 const E* peek() const { return &e; }
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55 };
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56
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57 #endif // SHARE_VM_SERVICES_ALLOCATION_SITE_HPP
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