Mon, 12 Aug 2019 18:30:40 +0300
8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens
1 /*
2 * Copyright (c) 2017, 2018, 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 */
25 #ifndef SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP
26 #define SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP
28 #include "jfr/recorder/checkpoint/jfrCheckpointWriter.hpp"
29 #include "jfr/utilities/jfrTypes.hpp"
30 #include "memory/allocation.hpp"
32 template <typename WriterImpl, u4 ID>
33 class JfrArtifactWriterHost : public StackObj {
34 private:
35 WriterImpl _impl;
36 JfrCheckpointWriter* _writer;
37 JfrCheckpointContext _ctx;
38 jlong _count_offset;
39 int _count;
40 bool _skip_header;
41 public:
42 JfrArtifactWriterHost(JfrCheckpointWriter* writer,
43 JfrArtifactSet* artifacts,
44 bool class_unload,
45 bool skip_header = false) : _impl(writer, artifacts, class_unload),
46 _writer(writer),
47 _ctx(writer->context()),
48 _count(0),
49 _skip_header(skip_header) {
50 assert(_writer != NULL, "invariant");
51 if (!_skip_header) {
52 _writer->write_type((JfrTypeId)ID);
53 _count_offset = _writer->reserve(sizeof(u4)); // Don't know how many yet
54 }
55 }
57 ~JfrArtifactWriterHost() {
58 if (_count == 0) {
59 // nothing written, restore context for rewind
60 _writer->set_context(_ctx);
61 return;
62 }
63 assert(_count > 0, "invariant");
64 if (!_skip_header) {
65 _writer->write_count(_count, _count_offset);
66 }
67 }
69 bool operator()(typename WriterImpl::Type const & value) {
70 this->_count += _impl(value);
71 return true;
72 }
74 int count() const { return _count; }
75 void add(int count) { _count += count; }
76 };
78 typedef int(*artifact_write_operation)(JfrCheckpointWriter*, JfrArtifactSet*, const void*);
80 template <typename T, artifact_write_operation op>
81 class JfrArtifactWriterImplHost {
82 private:
83 JfrCheckpointWriter* _writer;
84 JfrArtifactSet* _artifacts;
85 bool _class_unload;
86 public:
87 typedef T Type;
88 JfrArtifactWriterImplHost(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, bool class_unload) :
89 _writer(writer), _artifacts(artifacts), _class_unload(class_unload) {}
90 int operator()(T const& value) {
91 return op(this->_writer, this->_artifacts, value);
92 }
93 };
95 template <typename T, typename Predicate, artifact_write_operation op>
96 class JfrPredicatedArtifactWriterImplHost : public JfrArtifactWriterImplHost<T, op> {
97 private:
98 Predicate _predicate;
99 typedef JfrArtifactWriterImplHost<T, op> Parent;
100 public:
101 JfrPredicatedArtifactWriterImplHost(JfrCheckpointWriter* writer, JfrArtifactSet* artifacts, bool class_unload) :
102 Parent(writer, artifacts, class_unload), _predicate(class_unload) {}
103 int operator()(T const& value) {
104 return _predicate(value) ? Parent::operator()(value) : 0;
105 }
106 };
108 #endif // SHARE_VM_JFR_CHECKPOINT_TYPES_JFRTYPESETWRITER_HPP