1/*
2 * Copyright (c) 2017, 2019, 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.
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23 */
24
25#ifndef SHARE_JFR_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEDESCRIPTION_HPP
26#define SHARE_JFR_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEDESCRIPTION_HPP
27
28#define OBJECT_SAMPLE_DESCRIPTION_BUFFER_SIZE 100
29
30#include "memory/allocation.hpp"
31
32class outputStream;
33
34class ObjectDescriptionBuilder : public StackObj {
35private:
36 char _buffer[OBJECT_SAMPLE_DESCRIPTION_BUFFER_SIZE];
37 size_t _index;
38
39public:
40 ObjectDescriptionBuilder();
41
42 void write_text(const char* text);
43 void write_int(jint value);
44 void reset();
45
46 void print_description(outputStream* out);
47 const char* description();
48};
49
50class ObjectSampleDescription : public StackObj {
51private:
52 ObjectDescriptionBuilder _description;
53 oop _object;
54
55 void write_text(const char* text);
56 void write_int(jint value);
57
58 void write_object_details();
59 void write_size(jint size);
60 void write_thread_name();
61 void write_thread_group_name();
62 void write_class_name();
63 void write_object_to_buffer();
64 bool is_class(Symbol* s1, const char* s2);
65 void ensure_initialized();
66 bool read_int_size(jint* result);
67
68public:
69 ObjectSampleDescription(oop object);
70 void print_description(outputStream* out);
71 const char* description();
72};
73
74#endif // SHARE_JFR_LEAKPROFILER_CHECKPOINT_OBJECTSAMPLEDESCRIPTION_HPP
75