1 /* 2 * Copyright (c) 2014, 2018, 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 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 33 template <class E> class AllocationSite { 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