1 /*
   2  * Copyright (c) 1998, 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  */
  24 
  25 #ifndef SHARE_VM_UTILITIES_HISTOGRAM_HPP
  26 #define SHARE_VM_UTILITIES_HISTOGRAM_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "runtime/os.hpp"
  30 #include "utilities/growableArray.hpp"
  31 #ifdef TARGET_OS_FAMILY_linux
  32 # include "os_linux.inline.hpp"
  33 #endif
  34 #ifdef TARGET_OS_FAMILY_solaris
  35 # include "os_solaris.inline.hpp"
  36 #endif
  37 #ifdef TARGET_OS_FAMILY_windows
  38 # include "os_windows.inline.hpp"
  39 #endif
  40 #ifdef TARGET_OS_FAMILY_aix
  41 # include "os_aix.inline.hpp"
  42 #endif
  43 #ifdef TARGET_OS_FAMILY_bsd
  44 # include "os_bsd.inline.hpp"
  45 #endif
  46 
  47 // This class provides a framework for collecting various statistics.
  48 // The current implementation is oriented towards counting invocations
  49 // of various types, but that can be easily changed.
  50 //
  51 // To use it, you need to declare a Histogram*, and a subtype of
  52 // HistogramElement:
  53 //
  54 //  HistogramElement* MyHistogram;
  55 //
  56 //  class MyHistogramElement : public HistogramElement {
  57 //    public:
  58 //      MyHistogramElement(char* name);
  59 //  };
  60 //
  61 //  MyHistogramElement::MyHistogramElement(char* elementName) {
  62 //    _name = elementName;
  63 //
  64 //    if(MyHistogram == NULL)
  65 //      MyHistogram = new Histogram("My Call Counts",100);

   1 /*
   2  * Copyright (c) 1998, 2014, 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_UTILITIES_HISTOGRAM_HPP
  26 #define SHARE_VM_UTILITIES_HISTOGRAM_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "runtime/os.hpp"
  30 #include "utilities/growableArray.hpp"















  31 
  32 // This class provides a framework for collecting various statistics.
  33 // The current implementation is oriented towards counting invocations
  34 // of various types, but that can be easily changed.
  35 //
  36 // To use it, you need to declare a Histogram*, and a subtype of
  37 // HistogramElement:
  38 //
  39 //  HistogramElement* MyHistogram;
  40 //
  41 //  class MyHistogramElement : public HistogramElement {
  42 //    public:
  43 //      MyHistogramElement(char* name);
  44 //  };
  45 //
  46 //  MyHistogramElement::MyHistogramElement(char* elementName) {
  47 //    _name = elementName;
  48 //
  49 //    if(MyHistogram == NULL)
  50 //      MyHistogram = new Histogram("My Call Counts",100);