1/*
2 * Copyright (c) 2012, 2017, 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 "precompiled.hpp"
26#include "classfile/classLoaderData.hpp"
27#include "logging/log.hpp"
28#include "memory/heapInspection.hpp"
29#include "memory/metadataFactory.hpp"
30#include "memory/metaspaceClosure.hpp"
31#include "memory/oopFactory.hpp"
32#include "oops/annotations.hpp"
33#include "oops/instanceKlass.hpp"
34#include "utilities/ostream.hpp"
35
36// Allocate annotations in metadata area
37Annotations* Annotations::allocate(ClassLoaderData* loader_data, TRAPS) {
38  return new (loader_data, size(), MetaspaceObj::AnnotationsType, THREAD) Annotations();
39}
40
41// helper
42void Annotations::free_contents(ClassLoaderData* loader_data, Array<AnnotationArray*>* p) {
43  if (p != NULL) {
44    for (int i = 0; i < p->length(); i++) {
45      MetadataFactory::free_array<u1>(loader_data, p->at(i));
46    }
47    MetadataFactory::free_array<AnnotationArray*>(loader_data, p);
48  }
49}
50
51void Annotations::deallocate_contents(ClassLoaderData* loader_data) {
52  if (class_annotations() != NULL) {
53    MetadataFactory::free_array<u1>(loader_data, class_annotations());
54  }
55  free_contents(loader_data, fields_annotations());
56
57  if (class_type_annotations() != NULL) {
58    MetadataFactory::free_array<u1>(loader_data, class_type_annotations());
59  }
60  free_contents(loader_data, fields_type_annotations());
61}
62
63// Copy annotations to JVM call or reflection to the java heap.
64// The alternative to creating this array and adding to Java heap pressure
65// is to have a hashtable of the already created typeArrayOops
66typeArrayOop Annotations::make_java_array(AnnotationArray* annotations, TRAPS) {
67  if (annotations != NULL) {
68    int length = annotations->length();
69    typeArrayOop copy = oopFactory::new_byteArray(length, CHECK_NULL);
70    for (int i = 0; i< length; i++) {
71      copy->byte_at_put(i, annotations->at(i));
72    }
73    return copy;
74  } else {
75    return NULL;
76  }
77}
78
79void Annotations::metaspace_pointers_do(MetaspaceClosure* it) {
80  log_trace(cds)("Iter(Annotations): %p", this);
81  it->push(&_class_annotations);
82  it->push(&_fields_annotations);
83  it->push(&_class_type_annotations);
84  it->push(&_fields_type_annotations); // FIXME: need a test case where _fields_type_annotations != NULL
85}
86
87void Annotations::print_value_on(outputStream* st) const {
88  st->print("Anotations(" INTPTR_FORMAT ")", p2i(this));
89}
90
91#if INCLUDE_SERVICES
92// Size Statistics
93
94julong Annotations::count_bytes(Array<AnnotationArray*>* p) {
95  julong bytes = 0;
96  if (p != NULL) {
97    for (int i = 0; i < p->length(); i++) {
98      bytes += KlassSizeStats::count_array(p->at(i));
99    }
100    bytes += KlassSizeStats::count_array(p);
101  }
102  return bytes;
103}
104
105void Annotations::collect_statistics(KlassSizeStats *sz) const {
106  sz->_annotations_bytes = sz->count(this);
107  sz->_class_annotations_bytes = sz->count(class_annotations());
108  sz->_class_type_annotations_bytes = sz->count(class_type_annotations());
109  sz->_fields_annotations_bytes = count_bytes(fields_annotations());
110  sz->_fields_type_annotations_bytes = count_bytes(fields_type_annotations());
111
112  sz->_annotations_bytes +=
113      sz->_class_annotations_bytes +
114      sz->_class_type_annotations_bytes +
115      sz->_fields_annotations_bytes +
116      sz->_fields_type_annotations_bytes;
117
118  sz->_ro_bytes += sz->_annotations_bytes;
119}
120#endif // INCLUDE_SERVICES
121
122#define BULLET  " - "
123
124#ifndef PRODUCT
125void Annotations::print_on(outputStream* st) const {
126  st->print(BULLET"class_annotations            "); class_annotations()->print_value_on(st);
127  st->print(BULLET"fields_annotations           "); fields_annotations()->print_value_on(st);
128  st->print(BULLET"class_type_annotations       "); class_type_annotations()->print_value_on(st);
129  st->print(BULLET"fields_type_annotations      "); fields_type_annotations()->print_value_on(st);
130}
131#endif // PRODUCT
132