libreoffice-online/loolwsd/Log.hpp
Ashod Nakashian 322a3c1afe loolwsd: logging moved to own files
Change-Id: Idf1dd91cf37675e1bea8aeb5d9e8cf6d2ac9a725
Reviewed-on: https://gerrit.libreoffice.org/24099
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>
Tested-by: Ashod Nakashian <ashnakash@gmail.com>
2016-04-15 01:07:13 +00:00

121 lines
2.7 KiB
C++

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