1 /*
   2  * Copyright (c) 2015, 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 #include "memory/allocation.hpp"
  26 #include "utilities/debug.hpp"
  27 
  28 template <class T>
  29 class WorkerDataArray  : public CHeapObj<mtGC> {
  30   T*          _data;
  31   uint        _length;
  32   const char* _title;
  33 
  34   WorkerDataArray<size_t>* _thread_work_items;
  35 
  36   NOT_PRODUCT(inline T uninitialized() const;)
  37 
  38   void set_all(T value);
  39 
  40  public:
  41   WorkerDataArray(uint length, const char* title);
  42   ~WorkerDataArray();
  43 
  44   void link_thread_work_items(WorkerDataArray<size_t>* thread_work_items);
  45   void set_thread_work_item(uint worker_i, size_t value);
  46   WorkerDataArray<size_t>* thread_work_items() const {
  47     return _thread_work_items;
  48   }
  49 
  50   void set(uint worker_i, T value);
  51   T get(uint worker_i) const;
  52 
  53   void add(uint worker_i, T value);
  54 
  55   double average(uint active_threads) const;
  56   T sum(uint active_threads) const;
  57   T minimum(uint active_threads) const;
  58   T maximum(uint active_threads) const;
  59   T diff(uint active_threads) const;
  60 
  61   const char* title() const {
  62     return _title;
  63   }
  64 
  65   void clear();
  66 
  67   void reset() PRODUCT_RETURN;
  68   void verify(uint active_threads) const PRODUCT_RETURN;
  69 };