Mercurial > hg > truffle
diff src/share/vm/services/allocationSite.hpp @ 20360:833b0f92429a
8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill
author | zgu |
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date | Wed, 27 Aug 2014 08:19:12 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/services/allocationSite.hpp Wed Aug 27 08:19:12 2014 -0400 @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2014, 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 + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_SERVICES_ALLOCATION_SITE_HPP +#define SHARE_VM_SERVICES_ALLOCATION_SITE_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 VALUE_OBJ_CLASS_SPEC { + private: + NativeCallStack _call_stack; + E e; + public: + AllocationSite(const NativeCallStack& stack) : _call_stack(stack) { } + 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; } +}; + +#endif // SHARE_VM_SERVICES_ALLOCATION_SITE_HPP