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) 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_JFR_HPP
26 #define SHARE_VM_JFR_JFR_HPP
28 #include "jni.h"
29 #include "memory/allocation.hpp"
31 class BoolObjectClosure;
32 class JavaThread;
33 class OopClosure;
34 class Thread;
36 extern "C" void JNICALL jfr_register_natives(JNIEnv*, jclass);
38 //
39 // The VM interface to Flight Recorder.
40 //
41 class Jfr : AllStatic {
42 public:
43 static bool is_enabled();
44 static bool is_disabled();
45 static bool is_recording();
46 static void on_vm_init();
47 static void on_vm_start();
48 static void on_unloading_classes();
49 static void on_thread_exit(JavaThread* thread);
50 static void on_thread_destruct(Thread* thread);
51 static void on_vm_shutdown(bool exception_handler = false);
52 static bool on_flight_recorder_option(const JavaVMOption** option, char* delimiter);
53 static bool on_start_flight_recording_option(const JavaVMOption** option, char* delimiter);
54 static void weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f);
55 static void weak_oops_do(OopClosure* f);
56 static Thread* sampler_thread();
57 };
59 #endif // SHARE_VM_JFR_JFR_HPP