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) 2016, 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_RECORDER_CHECKPOINT_TYPES_JFRTHREADGROUP_HPP
26 #define SHARE_VM_JFR_RECORDER_CHECKPOINT_TYPES_JFRTHREADGROUP_HPP
28 #include "jni.h"
29 #include "jfr/utilities/jfrAllocation.hpp"
30 #include "jfr/utilities/jfrTypes.hpp"
32 class JfrCheckpointWriter;
33 template <typename>
34 class GrowableArray;
35 class JfrThreadGroupsHelper;
36 class JfrThreadGroupPointers;
38 class JfrThreadGroup : public JfrCHeapObj {
39 friend class JfrCheckpointThreadClosure;
40 private:
41 static JfrThreadGroup* _instance;
42 class JfrThreadGroupEntry;
43 GrowableArray<JfrThreadGroupEntry*>* _list;
45 JfrThreadGroup();
46 JfrThreadGroupEntry* find_entry(const JfrThreadGroupPointers& ptrs) const;
47 JfrThreadGroupEntry* new_entry(JfrThreadGroupPointers& ptrs);
48 int add_entry(JfrThreadGroupEntry* const tge);
50 void write_thread_group_entries(JfrCheckpointWriter& writer) const;
51 void write_selective_thread_group(JfrCheckpointWriter* writer, traceid thread_group_id) const;
53 static traceid thread_group_id_internal(JfrThreadGroupsHelper& helper);
54 static JfrThreadGroup* instance();
55 static void set_instance(JfrThreadGroup* new_instance);
57 public:
58 ~JfrThreadGroup();
59 static void serialize(JfrCheckpointWriter& w);
60 static void serialize(JfrCheckpointWriter* w, traceid thread_group_id);
61 static traceid thread_group_id(JavaThread* thread);
62 static traceid thread_group_id(const JavaThread* thread, Thread* current);
63 };
65 #endif // SHARE_VM_JFR_RECORDER_CHECKPOINT_TYPES_JFRTHREADGROUP_HPP