1/*
2 * Copyright (c) 2018, 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.
22 *
23 */
24
25#ifndef SHARE_JFR_JFR_HPP
26#define SHARE_JFR_JFR_HPP
27
28#include "jni.h"
29#include "memory/allocation.hpp"
30
31class BoolObjectClosure;
32class JavaThread;
33class OopClosure;
34class Thread;
35
36extern "C" void JNICALL jfr_register_natives(JNIEnv*, jclass);
37
38//
39// The VM interface to Flight Recorder.
40//
41class 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_start(Thread* thread);
50 static void on_thread_exit(Thread* thread);
51 static void on_java_thread_dismantle(JavaThread* jt);
52 static void on_vm_shutdown(bool exception_handler = false);
53 static bool on_flight_recorder_option(const JavaVMOption** option, char* delimiter);
54 static bool on_start_flight_recording_option(const JavaVMOption** option, char* delimiter);
55 static void weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f);
56};
57
58#endif // SHARE_JFR_JFR_HPP
59