jdk8-mips64-public/hotspot: src/share/vm/memory/referencePolicy.hpp@52e32c8b317e

6761092: jvm crashes when CDS is enabled.
Summary: CDS hardcoded max c++ virtual method table increased
Reviewed-by: coleenp, xlu, jmasa

     1 /*

     2  * Copyright 2000 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 // referencePolicy is used to determine when soft reference objects

    26 // should be cleared.

    29 class ReferencePolicy : public ResourceObj {

    30  public:

    31   virtual bool should_clear_reference(oop p)       { ShouldNotReachHere(); return true; }

    32 };

    34 class NeverClearPolicy : public ReferencePolicy {

    35  public:

    36   bool should_clear_reference(oop p) { return false; }

    37 };

    39 class AlwaysClearPolicy : public ReferencePolicy {

    40  public:

    41   bool should_clear_reference(oop p) { return true; }

    42 };

    44 class LRUCurrentHeapPolicy : public ReferencePolicy {

    45  private:

    46   jlong _max_interval;

    48  public:

    49   LRUCurrentHeapPolicy();

    51   bool should_clear_reference(oop p);

    52 };

    54 class LRUMaxHeapPolicy : public ReferencePolicy {

    55  private:

    56   jlong _max_interval;

    58  public:

    59   LRUMaxHeapPolicy();

    61   bool should_clear_reference(oop p);

    62 };

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