jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/hSpaceCounters.hpp@db9981fd3124

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

     1 /*

     2  * Copyright (c) 2011, 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_SHARED_HSPACECOUNTERS_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_HSPACECOUNTERS_HPP

    28 #include "utilities/macros.hpp"

    29 #if INCLUDE_ALL_GCS

    30 #include "gc_implementation/shared/generationCounters.hpp"

    31 #include "memory/generation.hpp"

    32 #include "runtime/perfData.hpp"

    33 #endif // INCLUDE_ALL_GCS

    35 // A HSpaceCounter is a holder class for performance counters

    36 // that track a collections (logical spaces) in a heap;

    38 class HeapSpaceUsedHelper;

    39 class G1SpaceMonitoringSupport;

    41 class HSpaceCounters: public CHeapObj<mtGC> {

    42   friend class VMStructs;

    44  private:

    45   PerfVariable*        _capacity;

    46   PerfVariable*        _used;

    48   // Constant PerfData types don't need to retain a reference.

    49   // However, it's a good idea to document them here.

    51   char*             _name_space;

    53  public:

    55   HSpaceCounters(const char* name, int ordinal, size_t max_size,

    56                  size_t initial_capacity, GenerationCounters* gc);

    58   ~HSpaceCounters() {

    59     if (_name_space != NULL) FREE_C_HEAP_ARRAY(char, _name_space, mtGC);

    60   }

    62   inline void update_capacity(size_t v) {

    63     _capacity->set_value(v);

    64   }

    66   inline void update_used(size_t v) {

    67     _used->set_value(v);

    68   }

    70   debug_only(

    71     // for security reasons, we do not allow arbitrary reads from

    72     // the counters as they may live in shared memory.

    73     jlong used() {

    74       return _used->get_value();

    75     }

    76     jlong capacity() {

    77       return _used->get_value();

    78     }

    79   )

    81   inline void update_all(size_t capacity, size_t used) {

    82     update_capacity(capacity);

    83     update_used(used);

    84   }

    86   const char* name_space() const        { return _name_space; }

    87 };

    88 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_HSPACECOUNTERS_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/shared/hSpaceCounters.hpp@db9981fd3124

src/share/vm/gc_implementation/shared/hSpaceCounters.hpp