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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
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