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) 2014, 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_LEAKPROFILER_EMITEVENTOPERATION_HPP
26 #define SHARE_VM_LEAKPROFILER_EMITEVENTOPERATION_HPP
28 #include "runtime/vm_operations.hpp"
30 class BFSClosure;
31 class EdgeStore;
32 class EdgeQueue;
33 class JfrThreadData;
34 class ObjectSample;
35 class ObjectSampler;
37 // Safepoint operation for emitting object sample events
38 class EmitEventOperation : public VM_Operation {
39 private:
40 jlong _cutoff_ticks;
41 bool _emit_all;
42 VMThread* _vm_thread;
43 JfrThreadLocal* _vm_thread_local;
44 ObjectSampler* _object_sampler;
46 void write_event(const ObjectSample* sample, EdgeStore* edge_store);
47 int write_events(EdgeStore* edge_store);
49 public:
50 EmitEventOperation(jlong cutoff_ticks, bool emit_all) :
51 _cutoff_ticks(cutoff_ticks),
52 _emit_all(emit_all),
53 _vm_thread(NULL),
54 _vm_thread_local(NULL),
55 _object_sampler(NULL) {
56 }
58 VMOp_Type type() const {
59 return VMOp_GC_HeapInspection;
60 }
62 Mode evaluation_mode() const {
63 return _safepoint;
64 }
66 virtual void doit();
67 };
69 #endif // SHARE_VM_LEAKPROFILER_EMITEVENTOPERATION_HPP