src/hotspot/share/logging/logDecorations.hpp
author erikj
Tue, 12 Sep 2017 19:03:39 +0200
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parent 42067 hotspot/src/share/vm/logging/logDecorations.hpp@34b99c8faa51
child 49364 601146c66cad
permissions -rw-r--r--
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/*
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 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_VM_LOGGING_LOGDECORATIONS_HPP
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#define SHARE_VM_LOGGING_LOGDECORATIONS_HPP
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#include "logging/logDecorators.hpp"
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#include "logging/logTagSet.hpp"
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#include "memory/allocation.hpp"
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// Temporary object containing the necessary data for a log call's decorations (timestamps, etc).
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class LogDecorations VALUE_OBJ_CLASS_SPEC {
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 public:
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  static const int DecorationsBufferSize = 256;
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 private:
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  char _decorations_buffer[DecorationsBufferSize];
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  char* _decoration_offset[LogDecorators::Count];
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  LogLevelType _level;
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  const LogTagSet& _tagset;
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  jlong _millis;
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  static jlong _vm_start_time_millis;
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  static const char* _host_name;
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  jlong java_millis();
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  void create_decorations(const LogDecorators& decorators);
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#define DECORATOR(name, abbr) char* create_##name##_decoration(char* pos);
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  DECORATOR_LIST
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#undef DECORATOR
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 public:
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  static void initialize(jlong vm_start_time);
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  LogDecorations(LogLevelType level, const LogTagSet& tagset, const LogDecorators& decorators);
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  void set_level(LogLevelType level) {
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    _level = level;
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  }
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  const char* decoration(LogDecorators::Decorator decorator) const {
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    if (decorator == LogDecorators::level_decorator) {
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      return LogLevel::name(_level);
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    }
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    return _decoration_offset[decorator];
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  }
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};
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#endif // SHARE_VM_LOGGING_LOGDECORATIONS_HPP