1 /*

     2  * Copyright (c) 2018, 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_MEMORY_METASPACE_METASPACEDCMD_HPP_

    26 #define SHARE_MEMORY_METASPACE_METASPACEDCMD_HPP_

    27 

    28 #include "services/diagnosticCommand.hpp"

    29 

    30 class outputStream;

    31 

    32 namespace metaspace {

    33 

    34 class MetaspaceDCmd : public DCmdWithParser {

    35   DCmdArgument<bool> _basic;

    36   DCmdArgument<bool> _show_loaders;

    37   DCmdArgument<bool> _by_spacetype;

    38   DCmdArgument<bool> _by_chunktype;

    39   DCmdArgument<bool> _show_vslist;

    40   DCmdArgument<bool> _show_vsmap;

    41   DCmdArgument<char*> _scale;

    42 public:

    43   MetaspaceDCmd(outputStream* output, bool heap);

    44   static const char* name() {

    45     return "VM.metaspace";

    46   }

    47   static const char* description() {

    48     return "Prints the statistics for the metaspace";

    49   }

    50   static const char* impact() {

    51       return "Medium: Depends on number of classes loaded.";

    52   }

    53   static const JavaPermission permission() {

    54     JavaPermission p = {"java.lang.management.ManagementPermission",

    55                         "monitor", NULL};

    56     return p;

    57   }

    58   static int num_arguments();

    59   virtual void execute(DCmdSource source, TRAPS);

    60 };

    61 

    62 } // namespace metaspace

    63 

    64 #endif /* SHARE_MEMORY_METASPACE_METASPACESTATISTICS_HPP_ */