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

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   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 GSpaceCounter is a holder class for performance counters
  26 // that track a space;
  27 
  28 class GSpaceCounters: 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   Generation*       _gen;
  40   char*             _name_space;
  41 
  42  public:
  43 
  44   GSpaceCounters(const char* name, int ordinal, size_t max_size, Generation* g,


  83 
  84   inline void update_all() {
  85     update_used();
  86     update_capacity();
  87   }
  88 
  89   const char* name_space() const        { return _name_space; }
  90 };
  91 
  92 class GenerationUsedHelper : public PerfLongSampleHelper {
  93   private:
  94     Generation* _gen;
  95 
  96   public:
  97     GenerationUsedHelper(Generation* g) : _gen(g) { }
  98 
  99     inline jlong take_sample() {
 100       return _gen->used();
 101     }
 102 };


   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_GSPACECOUNTERS_HPP
  26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GSPACECOUNTERS_HPP
  27 
  28 #ifndef SERIALGC
  29 #include "gc_implementation/shared/generationCounters.hpp"
  30 #include "memory/generation.hpp"
  31 #include "runtime/perfData.hpp"
  32 #endif
  33 
  34 // A GSpaceCounter is a holder class for performance counters
  35 // that track a space;
  36 
  37 class GSpaceCounters: public CHeapObj {
  38   friend class VMStructs;
  39 
  40  private:
  41   PerfVariable*      _capacity;
  42   PerfVariable*      _used;
  43 
  44   // Constant PerfData types don't need to retain a reference.
  45   // However, it's a good idea to document them here.
  46   // PerfConstant*     _size;
  47 
  48   Generation*       _gen;
  49   char*             _name_space;
  50 
  51  public:
  52 
  53   GSpaceCounters(const char* name, int ordinal, size_t max_size, Generation* g,


  92 
  93   inline void update_all() {
  94     update_used();
  95     update_capacity();
  96   }
  97 
  98   const char* name_space() const        { return _name_space; }
  99 };
 100 
 101 class GenerationUsedHelper : public PerfLongSampleHelper {
 102   private:
 103     Generation* _gen;
 104 
 105   public:
 106     GenerationUsedHelper(Generation* g) : _gen(g) { }
 107 
 108     inline jlong take_sample() {
 109       return _gen->used();
 110     }
 111 };
 112 
 113 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GSPACECOUNTERS_HPP