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_UTILITIES_JFRJAVALOG_HPP
26#define SHARE_JFR_UTILITIES_JFRJAVALOG_HPP
27
28#include "memory/allocation.hpp"
29#include "utilities/exceptions.hpp"
30
31/*
32 * A thin two-way "bridge" allowing our Java components to interface with Unified Logging (UL)
33 *
34 * Java can "subscribe" to be notified about UL configuration changes.
35 * On such a configuration change, if applicable, the passed in LogTag enum instance
36 * will be updated to reflect a new LogLevel.
37 *
38 * Log messages originating in Java are forwarded to UL for output.
39 *
40 */
41
42class JfrJavaLog : public AllStatic {
43 public:
44 static void subscribe_log_level(jobject log_tag, jint id, TRAPS);
45 static void log(jint tag_set, jint level, jstring message, TRAPS);
46};
47
48#endif // SHARE_JFR_UTILITIES_JFRJAVALOG_HPP
49