boost 相关

编译boost：

1、打开Microsoft Visual Studio 2010 -> Visual Studio Tools -> Visual Studio Command Promot

2、命令CD到boost目录下，运行 bjam stage --toolset=msvc-10.0 --with-log threading=multi release

stage 指编译到stage目录下，toolset：编译工具，with-log：指定编译boost的log模块

Log 模块：

boost log库 使用

#include <boost/shared_ptr.hpp>
#include <boost/make_shared.hpp>
#include <boost/thread/thread.hpp>
#include <boost/log/core.hpp>
#include <boost/log/sinks/sync_frontend.hpp>
#include <boost/log/sinks/text_ostream_backend.hpp>
#include <boost/log/sources/record_ostream.hpp>
#include <boost/log/support/date_time.hpp>
#include <boost/log/common.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/attributes.hpp>
#include <boost/log/sinks.hpp>
#include <boost/log/sources/logger.hpp>
#include <boost/log/utility/setup/common_attributes.hpp>
#include <boost/log/utility/setup/formatter_parser.hpp>
#include <boost/log/sources/severity_logger.hpp>
#include <boost/log/sources/severity_feature.hpp>
#include <boost/log/trivial.hpp>

#include <boost/log/attributes/named_scope.hpp>
#include <boost/log/expressions/keyword.hpp>

#include <fstream>
#include <iostream>

using namespace std;

namespace logging = boost::log;
namespace attrs = boost::log::attributes;
namespace src = boost::log::sources;
namespace sinks = boost::log::sinks;
namespace expr = boost::log::expressions;
namespace keywords = boost::log::keywords;

using namespace logging::trivial;


enum sign_severity_level {
    trace,
    debug,
    info,
    warning,
    error,
    fatal,
    report
};

BOOST_LOG_INLINE_GLOBAL_LOGGER_DEFAULT(my_logger, src::severity_logger_mt<sign_severity_level>)

void InitLog()
{
    typedef sinks::synchronous_sink<sinks::text_file_backend> TextSink;

    // 设置旋转日志，每天0时添加一个日志文件，或日志文件大于10MB时添加另一个日志文件，磁盘必须大于3G
    /*boost::shared_ptr<sinks::text_file_backend>*/
    auto backend = boost::make_shared<sinks::text_file_backend>(
        keywords::file_name = "%Y-%m-%d.log",                // 日志文件
        keywords::rotation_size = 10 * 1024 * 1024,                                        // 日志文件上限10MB
        keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0),    // 每天一个日志文件
        keywords::min_free_space = 30 * 1024 * 1024,                                    // 磁盘最小容量
        keywords::open_mode = ios::app,                                                    // 文件追加
        keywords::auto_flush = true                                                        // 自动刷新（立刻写入日志文件）
        );

    //// 自动刷新（立刻写入日志文件）
    //backend->auto_flush(true);

    boost::shared_ptr<TextSink> sink(new TextSink(backend));


    // 格式化日志格式   [日期]<日志级别>: 日志内容
    sink->set_formatter(
        //// 两种格式化写法
        //// 1：
        //expr::stream
        //<< "[" << expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d %H:%M:%S") << "]"
        //<< "<" << expr::attr<SeverityLevel::sign_severity_level>("Severity") << ">"
        //<< "(" << expr::format_named_scope("Scopes", boost::log::keywords::format = "%n (%f : %l)") << "):"
        //<< expr::smessage

        // 2:
        expr::format("[%1%]<%2%>(%3%): %4%")
        % expr::format_date_time< boost::posix_time::ptime >("TimeStamp", "%Y-%m-%d %H:%M:%S")
        % expr::attr<sign_severity_level>("Severity")        /*logging::trivial::severity*/
        // %n：Scope name(void foo())；%f：Source file name of the scope；%l：Line number in the source file
        % expr::format_named_scope("Scopes", boost::log::keywords::format = "%n (%f : %l)")
        //% expr::attr<attrs::current_thread_id::value_type >("ThreadID")        // 单线程没有ID
        % expr::smessage
        );

    logging::core::get()->add_global_attribute("Scopes", attrs::named_scope());

    // 设置过滤器
    sink->set_filter(expr::attr< sign_severity_level >("Severity") >= sign_severity_level::error);
    //sink->set_filter(expr::attr< severity_level >("Severity") >= logging::trivial::severity_level::error);

    logging::add_common_attributes();        // 要添加，否则线程ID和日期等一些属性都打印不出来
    logging::core::get()->add_sink(sink);
}

void foo(void)
{
    //BOOST_LOG_FUNCTION();        // 打印更详细的scope

    BOOST_LOG_NAMED_SCOPE("Scopes");        // 一定要这句，否则打印不出scope
    src::severity_logger_mt<sign_severity_level>& lg = my_logger::get();
    BOOST_LOG_SEV(lg, sign_severity_level::error) << "A trace severity message";
}

int main()
{
    InitLog();
    foo();
    logging::core::get()->remove_all_sinks();
}