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1 /* |
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2 * Copyright 1998-2004 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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20 * CA 95054 USA or visit www.sun.com if you need additional information or |
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21 * have any questions. |
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22 * |
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23 */ |
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24 |
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25 # include "incls/_precompiled.incl" |
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26 # include "incls/_histogram.cpp.incl" |
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27 |
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28 #ifdef ASSERT |
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29 |
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30 ////////////////// HistogramElement //////////////////////// |
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31 |
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32 HistogramElement::HistogramElement() { |
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33 _count = 0; |
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34 } |
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35 |
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36 int HistogramElement::count() { |
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37 return _count; |
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38 } |
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39 |
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40 const char* HistogramElement::name() { |
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41 return _name; |
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42 } |
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43 |
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44 void HistogramElement::increment_count() { |
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45 // We can't use the accessor :-(. |
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46 Atomic::inc(&_count); |
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47 } |
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48 |
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49 int HistogramElement::compare(HistogramElement* e1,HistogramElement* e2) { |
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50 if(e1->count() > e2->count()) { |
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51 return -1; |
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52 } else if(e1->count() < e2->count()) { |
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53 return 1; |
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54 } |
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55 return 0; |
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56 } |
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57 |
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58 void HistogramElement::print_on(outputStream* st) const { |
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59 st->print("%10d ",((HistogramElement*)this)->count()); |
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60 st->print_cr("%s",((HistogramElement*)this)->name()); |
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61 } |
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62 |
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63 ////////////////// Histogram //////////////////////// |
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64 |
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65 int Histogram::sort_helper(HistogramElement** e1, HistogramElement** e2) { |
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66 return (*e1)->compare(*e1,*e2); |
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67 } |
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68 |
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69 Histogram::Histogram(const char* title,int estimatedCount) { |
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70 _title = title; |
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71 _elements = new (ResourceObj::C_HEAP) GrowableArray<HistogramElement*>(estimatedCount,true); |
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72 } |
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73 |
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74 void Histogram::add_element(HistogramElement* element) { |
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75 // Note, we need to add locking ! |
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76 elements()->append(element); |
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77 } |
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78 |
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79 void Histogram::print_header(outputStream* st) { |
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80 st->print_cr("%s",title()); |
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81 st->print_cr("--------------------------------------------------"); |
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82 } |
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83 |
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84 void Histogram::print_elements(outputStream* st) { |
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85 elements()->sort(Histogram::sort_helper); |
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86 jint total = 0; |
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87 for(int i=0; i < elements()->length(); i++) { |
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88 elements()->at(i)->print(); |
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89 total += elements()->at(i)->count(); |
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90 } |
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91 st->print("%10d ", total); |
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92 st->print_cr("Total"); |
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93 } |
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94 |
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95 void Histogram::print_on(outputStream* st) const { |
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96 ((Histogram*)this)->print_header(st); |
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97 ((Histogram*)this)->print_elements(st); |
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98 } |
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99 |
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100 #endif |