rev 60538 : imported patch jep387-misc.patch

   1 /*
   2  * Copyright (c) 2012, 2020, 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.
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  23  */
  24 
  25 #ifndef SHARE_MEMORY_METASPACECOUNTERS_HPP
  26 #define SHARE_MEMORY_METASPACECOUNTERS_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 class MetaspacePerfCounters;
  31 
  32 // Todo: clean up after jep387, see JDK-8251392
  33 class MetaspaceCounters: public AllStatic {
  34   static MetaspacePerfCounters* _perf_counters;
  35   static size_t used();
  36   static size_t capacity();
  37   static size_t max_capacity();
  38 
  39  public:
  40   static void initialize_performance_counters();
  41   static void update_performance_counters();
  42 };
  43 
  44 class CompressedClassSpaceCounters: public AllStatic {
  45   static MetaspacePerfCounters* _perf_counters;
  46   static size_t used();
  47   static size_t capacity();
  48   static size_t max_capacity();
  49 
  50  public:
  51   static void initialize_performance_counters();
  52   static void update_performance_counters();
  53 };
  54 
  55 #endif // SHARE_MEMORY_METASPACECOUNTERS_HPP
--- EOF ---