1 /*

     2  * Copyright (c) 2012, 2015, 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  */

    24 

    25 #ifndef SHARE_VM_GC_G1_G1LOG_HPP

    26 #define SHARE_VM_GC_G1_G1LOG_HPP

    27 

    28 #include "memory/allocation.hpp"

    29 

    30 class G1Log : public AllStatic {

    31  public:

    32   typedef enum {

    33     LevelNone,

    34     LevelFine,

    35     LevelFiner,

    36     LevelFinest

    37   } LogLevel;

    38 

    39  private:

    40   static LogLevel _level;

    41 

    42  public:

    43   inline static bool fine() {

    44     return _level >= LevelFine;

    45   }

    46 

    47   inline static bool finer() {

    48     return _level >= LevelFiner;

    49   }

    50 

    51   inline static bool finest() {

    52     return _level == LevelFinest;

    53   }

    54 

    55   static LogLevel level() {

    56     return _level;

    57   }

    58 

    59   static void init();

    60 

    61   // Update to log level to reflect runtime changes to manageable flags

    62   static void update_level();

    63 };

    64 

    65 #endif // SHARE_VM_GC_G1_G1LOG_HPP