1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2019, Twitter, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    25 

    26 #ifndef SHARE_GC_SHARED_PREGCVALUES_HPP

    27 #define SHARE_GC_SHARED_PREGCVALUES_HPP

    28 

    29 #include "memory/metaspace/metaspaceSizesSnapshot.hpp"

    30 

    31 // Simple class for storing info about the heap at the start of GC, to be used

    32 // after GC for comparison/printing.

    33 class PreGenGCValues {

    34 public:

    35   PreGenGCValues(size_t young_gen_used,

    36                  size_t young_gen_capacity,

    37                  size_t eden_used,

    38                  size_t eden_capacity,

    39                  size_t from_used,

    40                  size_t from_capacity,

    41                  size_t old_gen_used,

    42                  size_t old_gen_capacity)

    43       : _young_gen_used(young_gen_used),

    44         _young_gen_capacity(young_gen_capacity),

    45         _eden_used(eden_used),

    46         _eden_capacity(eden_capacity),

    47         _from_used(from_used),

    48         _from_capacity(from_capacity),

    49         _old_gen_used(old_gen_used),

    50         _old_gen_capacity(old_gen_capacity) { }

    51 

    52   size_t young_gen_used()     const { return _young_gen_used;     }

    53   size_t young_gen_capacity() const { return _young_gen_capacity; }

    54   size_t eden_used()          const { return _eden_used;          }

    55   size_t eden_capacity()      const { return _eden_capacity;      }

    56   size_t from_used()          const { return _from_used;          }

    57   size_t from_capacity()      const { return _from_capacity;      }

    58   size_t old_gen_used()       const { return _old_gen_used;       }

    59   size_t old_gen_capacity()   const { return _old_gen_capacity;   }

    60   const metaspace::MetaspaceSizesSnapshot& metaspace_sizes() const { return _meta_sizes; }

    61 

    62 private:

    63   const size_t _young_gen_used;

    64   const size_t _young_gen_capacity;

    65   const size_t _eden_used;

    66   const size_t _eden_capacity;

    67   const size_t _from_used;

    68   const size_t _from_capacity;

    69   const size_t _old_gen_used;

    70   const size_t _old_gen_capacity;

    71   const metaspace::MetaspaceSizesSnapshot _meta_sizes;

    72 };

    73 

    74 #endif // SHARE_GC_SHARED_PREGCVALUES_HPP