/*

 * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 *

 */

#ifndef SHARE_SERVICES_ALLOCATIONSITE_HPP

#define SHARE_SERVICES_ALLOCATIONSITE_HPP

#include "memory/allocation.hpp"

#include "utilities/nativeCallStack.hpp"

// Allocation site represents a code path that makes a memory

// allocation

template <class E> class AllocationSite {

 private:

  NativeCallStack  _call_stack;

  E                e;

  MEMFLAGS         _flag;

 public:

  AllocationSite(const NativeCallStack& stack, MEMFLAGS flag) : _call_stack(stack), _flag(flag) { }

  int hash() const { return _call_stack.hash(); }

  bool equals(const NativeCallStack& stack) const {

    return _call_stack.equals(stack);

  }

  bool equals(const AllocationSite<E>& other) const {

    return other.equals(_call_stack);

  }

  const NativeCallStack* call_stack() const {

    return &_call_stack;

  }

  // Information regarding this allocation

  E* data()             { return &e; }

  const E* peek() const { return &e; }

  MEMFLAGS flag() const { return _flag; }

};

#endif // SHARE_SERVICES_ALLOCATIONSITE_HPP