log4c 基于C++11的轻量级日志库(the lightweight logger library base on C++11)

支持多线程、多进程并发调用(Support multi-threaded, multi-process concurrent invokes);

支持跨平台(Support the crossplatform e.g : Android, Linux, Windows);

支持日志加密(Support encrypt the log data);

接口说明(Interface description)

• setRoot 设置根目录，如APP01，如果日志路径设置为：/tmp/，那么最终日志存储的路径为：/tmp/APP01/ (Set the root directory)
• setFileSize 设置单个日志文件大小，单位为MB (Set the size of single file in MB)
• setTraceLevel 设置日志等级，具体请查看ILog4C::elog_level (Set the level of logger)
• setExpiryDate 设置自动清理期限，单位为月(Set automatic cleanup deadlines)
• log(elog_level level, const char* layer, const char* file, int lineno, const char* func, int len, const char* varName, const unsigned char* hexStream)
  • level 日志等级
  • layer 层次名
  • file 文件名
  • lineno 行号
  • func 函数名
  • len 长度(二进制数据流的长度)
  • varName 变量名
  • hexStream 二进制流数据
• log(elog_level level, const char* layer, const char* file, int lineno, const char* func, const char* format, ...)
  • level 日志等级
  • layer 层次名
  • file 文件名
  • lineno 行号
  • func 函数名
  • format 格式(e.g: "%s%d%c...")

严格按日志等级来区分;

• ILog4C::Debug
• ILog4C::Warning
• ILog4C::Infor
• ILog4C::Error

提供配套日志查看工具，git路径 [https://github.com/RyanLiuF/log4cView](Provide the logger viewing tools to analysis the log file)

使用示例(Demo)

#include <ILog4C.h>
#include <stl/os/path.hpp>
#include <stl/utility/module.hpp>
#include <iostream>
int main()
{
    std::string path = stl::os::path::to_absolute("tmpLog");

    stl::CModule<ILog4C> ptr = stl::make_module<ILog4C>("log4c", 
                                        stl::CModuleLifeCycle("Attach", "Dettach"), 
                                        "CMODULEXXX", path.c_str());

    if(!ptr)
    {
        printf("load dll failed\n");
        return 1;
    }
    ptr->setFileSize(1);

    auto start = stl::time::tick();
    auto f = [&](int i, int n = 0)->void {
        std::cout << this_thread::get_id() << std::endl;
        std::string module;
        switch (n)
        {
        case 0:
            module = "Moudle00000"; break;
        case 1:
            module = "Moudle11111"; break;
        case 2:
            module = "Moudle22222"; break;
        case 3:
            module = "Moudle33333"; break;
        default:
            module = "MoudleDefault"; break;
        }

        for (int k = 0; k < i; k++)
        {
            ptr->log(ILog4C::Debug, module.c_str(), __FILE__, __LINE__, __FUNCTION__, "%04d", k);
            ptr->log(ILog4C::Warning, module.c_str(), __FILE__, __LINE__, __FUNCTION__, "%04d", k);
            ptr->log(ILog4C::Infor, module.c_str(), __FILE__, __LINE__, __FUNCTION__, "%04d", k);
            ptr->log(ILog4C::Error, module.c_str(), __FILE__, __LINE__, __FUNCTION__, "%04d", k);
        }
    };
    auto thread1 = async(launch::async, f, 2000, 0);
    auto thread2 = async(launch::async, f, 2000, 1);
    auto thread3 = async(launch::async, f, 2000, 2);
    auto thread4 = async(launch::async, f, 2000, 3);
    auto thread5 = async(launch::async, f, 2000, 4);
    thread1.get();
    thread2.get();
    thread3.get();
    thread4.get();
    thread5.get();
    std::cout << "using:" <<stl::time::tick() - start << "ms" << std::endl;
    return 0;
}