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annotate src/share/vm/oops/annotations.cpp @ 6862:8a5ea0a9ccc4

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7127708: G1: change task num types from int to uint in concurrent mark Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich. Reviewed-by: johnc Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>
author johnc
date Sat, 06 Oct 2012 01:17:44 -0700
parents da91efe96a93
children 35431a769282
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "classfile/classLoaderData.hpp"
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27 #include "memory/metadataFactory.hpp"
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28 #include "memory/oopFactory.hpp"
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29 #include "oops/annotations.hpp"
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30 #include "oops/instanceKlass.hpp"
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31 #include "utilities/ostream.hpp"
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32
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33 // Allocate annotations in metadata area
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34 Annotations* Annotations::allocate(ClassLoaderData* loader_data, TRAPS) {
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35 return new (loader_data, size(), true, THREAD) Annotations();
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36 }
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37
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38 Annotations* Annotations::allocate(ClassLoaderData* loader_data,
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39 Array<AnnotationArray*>* fa,
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40 Array<AnnotationArray*>* ma,
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41 Array<AnnotationArray*>* mpa,
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42 Array<AnnotationArray*>* mda, TRAPS) {
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43 return new (loader_data, size(), true, THREAD) Annotations(fa, ma, mpa, mda);
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44 }
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45
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46 // helper
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47 static void free_contents(ClassLoaderData* loader_data, Array<AnnotationArray*>* p) {
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48 if (p != NULL) {
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49 for (int i = 0; i < p->length(); i++) {
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50 MetadataFactory::free_array<u1>(loader_data, p->at(i));
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51 }
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52 MetadataFactory::free_array<AnnotationArray*>(loader_data, p);
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53 }
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54 }
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55
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56 void Annotations::deallocate_contents(ClassLoaderData* loader_data) {
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57 if (class_annotations() != NULL) {
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58 MetadataFactory::free_array<u1>(loader_data, class_annotations());
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59 }
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60 free_contents(loader_data, fields_annotations());
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61 free_contents(loader_data, methods_annotations());
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62 free_contents(loader_data, methods_parameter_annotations());
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63 free_contents(loader_data, methods_default_annotations());
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64 }
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65
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66 // Set the annotation at 'idnum' to 'anno'.
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67 // We don't want to create or extend the array if 'anno' is NULL, since that is the
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68 // default value. However, if the array exists and is long enough, we must set NULL values.
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69 void Annotations::set_methods_annotations_of(instanceKlassHandle ik,
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70 int idnum, AnnotationArray* anno,
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71 Array<AnnotationArray*>** md_p,
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72 TRAPS) {
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73 Array<AnnotationArray*>* md = *md_p;
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74 if (md != NULL && md->length() > idnum) {
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75 md->at_put(idnum, anno);
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76 } else if (anno != NULL) {
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77 // create the array
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78 int length = MAX2(idnum+1, (int)ik->idnum_allocated_count());
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79 md = MetadataFactory::new_array<AnnotationArray*>(ik->class_loader_data(), length, CHECK);
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80 if (*md_p != NULL) {
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81 // copy the existing entries
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82 for (int index = 0; index < (*md_p)->length(); index++) {
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83 md->at_put(index, (*md_p)->at(index));
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84 }
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85 }
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86 set_annotations(md, md_p);
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87 md->at_put(idnum, anno);
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88 } // if no array and idnum isn't included there is nothing to do
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89 }
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90
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91 // Keep created annotations in a global growable array (should be hashtable)
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92 // need to add, search, delete when class is unloaded.
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93 // Does it need a lock? yes. This sucks.
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94
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95 // Copy annotations to JVM call or reflection to the java heap.
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96 typeArrayOop Annotations::make_java_array(AnnotationArray* annotations, TRAPS) {
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97 if (annotations != NULL) {
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98 int length = annotations->length();
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99 typeArrayOop copy = oopFactory::new_byteArray(length, CHECK_NULL);
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100 for (int i = 0; i< length; i++) {
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101 copy->byte_at_put(i, annotations->at(i));
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102 }
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103 return copy;
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104 } else {
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105 return NULL;
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106 }
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107 }
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108
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109
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110 void Annotations::print_value_on(outputStream* st) const {
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111 st->print("Anotations(" INTPTR_FORMAT ")", this);
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112 }
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113
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114 #define BULLET " - "
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115
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116 #ifndef PRODUCT
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117 void Annotations::print_on(outputStream* st) const {
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118 st->print(BULLET"class_annotations "); class_annotations()->print_value_on(st);
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119 st->print(BULLET"fields_annotations "); fields_annotations()->print_value_on(st);
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120 st->print(BULLET"methods_annotations "); methods_annotations()->print_value_on(st);
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121 st->print(BULLET"methods_parameter_annotations"); methods_parameter_annotations()->print_value_on(st);
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122 st->print(BULLET"methods_default_annotations "); methods_default_annotations()->print_value_on(st);
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123 }
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124 #endif // PRODUCT