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73 lines
2.8 KiB
C++
73 lines
2.8 KiB
C++
/*
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* Copyright (c) 2015, 2021, 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_LOGGING_LOGDECORATIONS_HPP
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#define SHARE_LOGGING_LOGDECORATIONS_HPP
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#include "logging/logDecorators.hpp"
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#include "logging/logTagSet.hpp"
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class outputStream;
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// LogDecorations keeps resolved values for decorators, as well as the
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// printing code to print them. The values are resolved at the log site (in the
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// constructor of LogDecorations); the printing happens when the log message is
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// printed. That may happen delayed, and the object may be stored for some time,
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// in the context of asynchronous logging. Therefore size of this object matters.
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class LogDecorations {
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const jlong _millis; // for "time", "utctime", "timemillis"
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const jlong _nanos; // for "timenanos"
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const double _elapsed_seconds; // for "uptime", "uptimemillis", "uptimenanos"
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const intx _tid; // for "tid"
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LogLevelType _level; // for "level" (needs to be nonconst)
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const LogTagSet& _tagset; // for "tags"
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// In debug mode we keep the decorators around for sanity checking when printing
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DEBUG_ONLY(const LogDecorators _decorators;)
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static const char* volatile _host_name;
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static const char* host_name();
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static const int _pid; // for "pid"
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#define DECORATOR(name, abbr) void print_##name##_decoration(outputStream* st) const;
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DECORATOR_LIST
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#undef DECORATOR
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public:
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// max size of a single decoration.
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static const size_t max_decoration_size = 255;
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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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void print_decoration(LogDecorators::Decorator decorator, outputStream* st) const;
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const char* decoration(LogDecorators::Decorator decorator, char* buf, size_t buflen) const;
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};
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#endif // SHARE_LOGGING_LOGDECORATIONS_HPP
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