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

Print this page


   1 /*
   2  * Copyright (c) 2002, 2004, 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 // A SpaceCounter is a holder class for performance counters
  26 // that track a space;
  27 
  28 class SpaceCounters: public CHeapObj {
  29   friend class VMStructs;
  30 
  31  private:
  32   PerfVariable*      _capacity;
  33   PerfVariable*      _used;
  34 
  35   // Constant PerfData types don't need to retain a reference.
  36   // However, it's a good idea to document them here.
  37   // PerfConstant*     _size;
  38 
  39   MutableSpace*     _object_space;
  40   char*             _name_space;
  41 
  42  public:
  43 
  44   SpaceCounters(const char* name, int ordinal, size_t max_size,


  58 
  59   inline void update_all() {
  60     update_used();
  61     update_capacity();
  62   }
  63 
  64   const char* name_space() const        { return _name_space; }
  65 };
  66 
  67 class MutableSpaceUsedHelper: public PerfLongSampleHelper {
  68   private:
  69     MutableSpace* _m;
  70 
  71   public:
  72     MutableSpaceUsedHelper(MutableSpace* m) : _m(m) { }
  73 
  74     inline jlong take_sample() {
  75       return _m->used_in_bytes();
  76     }
  77 };


   1 /*
   2  * Copyright (c) 2002, 2010, 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_IMPLEMENTATION_SHARED_SPACECOUNTERS_HPP
  26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_SPACECOUNTERS_HPP
  27 
  28 #ifndef SERIALGC
  29 #include "gc_implementation/shared/generationCounters.hpp"
  30 #include "gc_implementation/shared/immutableSpace.hpp"
  31 #include "gc_implementation/shared/mutableSpace.hpp"
  32 #include "runtime/perfData.hpp"
  33 #endif
  34 
  35 // A SpaceCounter is a holder class for performance counters
  36 // that track a space;
  37 
  38 class SpaceCounters: public CHeapObj {
  39   friend class VMStructs;
  40 
  41  private:
  42   PerfVariable*      _capacity;
  43   PerfVariable*      _used;
  44 
  45   // Constant PerfData types don't need to retain a reference.
  46   // However, it's a good idea to document them here.
  47   // PerfConstant*     _size;
  48 
  49   MutableSpace*     _object_space;
  50   char*             _name_space;
  51 
  52  public:
  53 
  54   SpaceCounters(const char* name, int ordinal, size_t max_size,


  68 
  69   inline void update_all() {
  70     update_used();
  71     update_capacity();
  72   }
  73 
  74   const char* name_space() const        { return _name_space; }
  75 };
  76 
  77 class MutableSpaceUsedHelper: public PerfLongSampleHelper {
  78   private:
  79     MutableSpace* _m;
  80 
  81   public:
  82     MutableSpaceUsedHelper(MutableSpace* m) : _m(m) { }
  83 
  84     inline jlong take_sample() {
  85       return _m->used_in_bytes();
  86     }
  87 };
  88 
  89 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_SPACECOUNTERS_HPP