1/*
2 * Copyright (c) 2016, 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_WRITERS_JFRJAVAEVENTWRITER_HPP
26#define SHARE_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
27
28#include "jni.h"
29#include "memory/allocation.hpp"
30
31class JavaThread;
32class Thread;
33
34class JfrJavaEventWriter : AllStatic {
35 friend class JfrCheckpointThreadClosure;
36 friend class JfrJavaEventWriterNotificationClosure;
37 friend class JfrJavaEventWriterNotifyOperation;
38 friend class JfrRecorder;
39 private:
40 static bool initialize();
41 static void notify(JavaThread* jt);
42
43 public:
44 static void notify();
45 static jobject event_writer(Thread* t);
46 static jobject new_event_writer(TRAPS);
47 static jboolean flush(jobject writer, jint used, jint requested, JavaThread* jt);
48};
49
50#endif // SHARE_JFR_WRITERS_JFRJAVAEVENTWRITER_HPP
51