126 lines
2.8 KiB
C++
126 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_LOG_HPP
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#define INCLUDED_LOG_HPP
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#include <string>
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#include <sstream>
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#include <functional>
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#include <Poco/Logger.h>
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namespace Log
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{
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void initialize(const std::string& name);
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Poco::Logger& logger();
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std::string prefix();
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void trace(const std::string& msg);
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void debug(const std::string& msg);
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void info(const std::string& msg);
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void warn(const std::string& msg);
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void error(const std::string& msg);
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void syserror(const std::string& msg);
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/// Signal safe prefix logging
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void signalLogPrefix();
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/// Signal safe logging
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void signalLog(const char *message);
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/// The following is to write streaming logs.
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/// Log::info() << "Value: 0x" << std::hex << value
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/// << ", pointer: " << this << Log::end;
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static const struct _end_marker
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{
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_end_marker()
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{
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}
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} end;
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class StreamLogger
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{
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public:
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StreamLogger(std::function<void(const std::string&)> func)
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: _func(func)
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{
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}
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StreamLogger(StreamLogger&& sl)
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: _stream(std::move(sl._stream.str()))
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, _func(std::move(sl._func))
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{
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}
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void flush() const
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{
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_func(_stream.str());
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}
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std::ostringstream _stream;
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private:
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std::function<void(const std::string&)> _func;
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};
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inline
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StreamLogger trace()
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{
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return StreamLogger([](const std::string& msg) { trace(msg);});
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}
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inline
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StreamLogger debug()
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{
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return StreamLogger([](const std::string& msg) { debug(msg);});
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}
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inline
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StreamLogger info()
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{
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return StreamLogger([](const std::string& msg) { info(msg);});
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}
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inline
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StreamLogger warn()
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{
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return StreamLogger([](const std::string& msg) { warn(msg);});
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}
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inline
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StreamLogger error()
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{
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return StreamLogger([](const std::string& msg) { error(msg);});
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}
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template <typename U>
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StreamLogger& operator <<(StreamLogger& lhs, const U& rhs)
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{
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lhs._stream << rhs;
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return lhs;
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}
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template <typename U>
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StreamLogger& operator <<(StreamLogger&& lhs, U&& rhs)
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{
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lhs._stream << rhs;
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return lhs;
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}
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inline
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void operator <<(StreamLogger& lhs, const _end_marker&)
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{
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(void)end;
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lhs.flush();
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}
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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