src/share/vm/gc_implementation/g1/g1Log.hpp

Mon, 19 Aug 2019 10:11:31 +0200

author
neugens
date
Mon, 19 Aug 2019 10:11:31 +0200
changeset 9861
a248d0be1309
parent 7658
c3fcc09c9239
permissions
-rw-r--r--

8229401: Fix JFR code cache test failures
8223689: Add JFR Thread Sampling Support
8223690: Add JFR BiasedLock Event Support
8223691: Add JFR G1 Region Type Change Event Support
8223692: Add JFR G1 Heap Summary Event Support
Summary: Backport JFR from JDK11, additional fixes
Reviewed-by: neugens, apetushkov
Contributed-by: denghui.ddh@alibaba-inc.com

     1 /*
     2  * Copyright (c) 2012, 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.
    22  *
    23  */
    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP
    26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP
    28 #include "memory/allocation.hpp"
    30 class G1Log : public AllStatic {
    31  public:
    32   typedef enum {
    33     LevelNone,
    34     LevelFine,
    35     LevelFiner,
    36     LevelFinest
    37   } LogLevel;
    39  private:
    40   static LogLevel _level;
    42  public:
    43   inline static bool fine() {
    44     return _level >= LevelFine;
    45   }
    47   inline static bool finer() {
    48     return _level >= LevelFiner;
    49   }
    51   inline static bool finest() {
    52     return _level == LevelFinest;
    53   }
    55   static LogLevel level() {
    56     return _level;
    57   }
    59   static void init();
    60 };
    62 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP

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