1/*
2 * Copyright (c) 2015, 2016, 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#ifndef SHARE_VM_LOGGING_LOGDECORATIONS_HPP
25#define SHARE_VM_LOGGING_LOGDECORATIONS_HPP
26
27#include "logging/logDecorators.hpp"
28#include "logging/logTagSet.hpp"
29#include "memory/allocation.hpp"
30
31// Temporary object containing the necessary data for a log call's decorations (timestamps, etc).
32class LogDecorations VALUE_OBJ_CLASS_SPEC {
33 public:
34  static const int DecorationsBufferSize = 256;
35 private:
36  char _decorations_buffer[DecorationsBufferSize];
37  char* _decoration_offset[LogDecorators::Count];
38  LogLevelType _level;
39  const LogTagSet& _tagset;
40  jlong _millis;
41  static jlong _vm_start_time_millis;
42  static const char* _host_name;
43
44  jlong java_millis();
45  void create_decorations(const LogDecorators& decorators);
46
47#define DECORATOR(name, abbr) char* create_##name##_decoration(char* pos);
48  DECORATOR_LIST
49#undef DECORATOR
50
51 public:
52  static void initialize(jlong vm_start_time);
53
54  LogDecorations(LogLevelType level, const LogTagSet& tagset, const LogDecorators& decorators);
55
56  void set_level(LogLevelType level) {
57    _level = level;
58  }
59
60  const char* decoration(LogDecorators::Decorator decorator) const {
61    if (decorator == LogDecorators::level_decorator) {
62      return LogLevel::name(_level);
63    }
64    return _decoration_offset[decorator];
65  }
66};
67
68#endif // SHARE_VM_LOGGING_LOGDECORATIONS_HPP
69