Mercurial > hg > truffle
view src/share/vm/memory/referencePolicy.hpp @ 408:52e32c8b317e
6761092: jvm crashes when CDS is enabled.
Summary: CDS hardcoded max c++ virtual method table increased
Reviewed-by: coleenp, xlu, jmasa
author | acorn |
---|---|
date | Wed, 22 Oct 2008 14:48:08 -0400 |
parents | a61af66fc99e |
children | c96030fff130 |
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/* * Copyright 2000 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // referencePolicy is used to determine when soft reference objects // should be cleared. class ReferencePolicy : public ResourceObj { public: virtual bool should_clear_reference(oop p) { ShouldNotReachHere(); return true; } }; class NeverClearPolicy : public ReferencePolicy { public: bool should_clear_reference(oop p) { return false; } }; class AlwaysClearPolicy : public ReferencePolicy { public: bool should_clear_reference(oop p) { return true; } }; class LRUCurrentHeapPolicy : public ReferencePolicy { private: jlong _max_interval; public: LRUCurrentHeapPolicy(); bool should_clear_reference(oop p); }; class LRUMaxHeapPolicy : public ReferencePolicy { private: jlong _max_interval; public: LRUMaxHeapPolicy(); bool should_clear_reference(oop p); };