未创建日志文件

Log file is not getting created

本文关键字:文件 日志 创建      更新时间:2023-10-16

我需要一个全局记录器,我可以在项目中的多个类中使用。我想在 ini 文件中设置记录器。

我从这里开始遵循示例,并将其与我之前的问题中的一些建议结合起来。

我的记录器如下。

#pragma once
#include <boost/log/common.hpp>
#include <boost/log/attributes.hpp>
#include <boost/log/utility/setup/from_stream.hpp>
#include <boost/regex.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/sources/global_logger_storage.hpp>
#include <boost/log/support/date_time.hpp>
#include <boost/log/trivial.hpp>
#include <boost/log/utility/setup.hpp>

#define INFO  BOOST_LOG_SEV(my_logger::get(), boost::log::trivial::info)
#define WARN  BOOST_LOG_SEV(my_logger::get(), boost::log::trivial::warning)
#define ERROR BOOST_LOG_SEV(my_logger::get(), boost::log::trivial::error)
//Narrow-char thread-safe logger.
typedef boost::log::sources::severity_logger_mt<boost::log::trivial::severity_level> logger_t;
//declares a global logger with a custom initialization
BOOST_LOG_GLOBAL_LOGGER(my_logger, logger_t)
BOOST_LOG_INLINE_GLOBAL_LOGGER_DEFAULT(test_lg, boost::log::sources::severity_logger< >)

记录器.cpp如下所示。

#include "stdafx.h"
#include "Logger.h"
#include <fstream>
namespace attrs = boost::log::attributes;
namespace expr = boost::log::expressions;
namespace logging = boost::log;
//Defines a global logger initialization routine
BOOST_LOG_GLOBAL_LOGGER_INIT(my_logger, logger_t)
{
logger_t lg;
logging::add_common_attributes();
std::ifstream settings("settings.ini");
if (!settings.is_open())
{
std::cout << "Could not open settings.txt file" << std::endl;
//return 1;
}
// Read the settings and initialize logging library
logging::init_from_stream(settings);
// Add some attributes
logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
logging::register_simple_filter_factory<logging::trivial::severity_level>("Severity");
return lg;
}

设置.ini如下所示

#
#          Copyright Andrey Semashev 2007 - 2014.
# Distributed under the Boost Software License, Version 1.0.
#    (See accompanying file LICENSE_1_0.txt or copy at
#          http://www.boost.org/LICENSE_1_0.txt)
#
[Core]
Filter="%Severity% >= debug"
[Sinks.1]
Destination=TextFile
FileName=test.log
AutoFlush=true
Format="[%TimeStamp%] <%Severity%> (%Channel%): %Message%"

最后,我正在尝试使用记录器,如下所示。

#include "Logger.h"
int wmain(int argc, wchar_t* argv[])
{
INFO << "Program started";
}

但是,不会创建任何日志文件。我现在做错了什么?

在解析设置 ini之前,需要注册过滤器工厂。

// Add some attributes
logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
logging::register_simple_filter_factory<logging::trivial::severity_level>("Severity");

需要在通话前

// Read the settings and initialize logging library
logging::init_from_stream(settings);

如果没有工厂,过滤器不会被解释并最终过滤所有内容。