logging/README.md

C语言日志库logging

English

简介

logging是一个轻量级的简单易用C语言日志库，支持日志级别、日志格式、日志输出、日志文件等功能。

功能

• 支持日志级别：DEBUG、INFO、WARN、ERROR、FATAL
• 支持日志格式：时间戳、日志级别、日志内容
• 支持日志输出：控制台、文件
• 支持日志文件：自动创建、自动滚动、日志分割

安装

conan安装使用

git clone https://github.com/WangZhongDian/logging.git
cd logging
conan create . 

在你的项目的conanfile.txt中添加

[requires]
logging/0.5.0

conan install . --build=missing

cmake安装使用

git clone https://github.com/WangZhongDian/logging.git
cd logging
cmake build -B build . && cd build && cmake --build .
cmake --install .

使用方法

控制台日志

#include "logging.h"

int main() {
    Logger *logger = newDefaultLogger("testLogger", LOG_DEBUG);

    Log_info("This is an info message");
    Log_error("This is an error message%s", "123");
    Log_fatal("This is an fatal message");
    Log_debug("This is a debug message");
    Log_warning("This is a warning message%s", "123");

    destroyDefaultLogger();
    return 0;
}

文件日志

#include "logging.h"
#include "logging/logging-handler.h"

int main() {
    Logger *logger = newDefaultLogger("testLogger", LOG_DEBUG);
    logger->addHandler(loggingHandlerFile("test1", 1024*1024));

    Log_info("This is an info message");
    Log_error("This is an error message%s", "123");
    Log_fatal("This is an fatal message");
    Log_debug("This is a debug message");
    Log_warning("This is a warning message%s", "123");

    destroyDefaultLogger();
    return 0;
}

日志过滤器

支持添加自定义的过滤器， 目前内置了子串过滤器

过滤器的作用:可以将过滤到的日志重定向到过滤器的专属处理器中

单个子串过滤器

将过滤到的日志重定向到专属处理器中

#include "logging.h"
#include <stdio.h>

int main() {
    Logger  *logger = newDefaultLogger("testLogger", LOG_DEBUG);

    Log_info("This is an info message");
    Log_error("This is an error message%s", "123");
    Log_fatal("This is an fatal message");
    Log_debug("This is a debug message");
    Log_warning("This is a warning message%s", "123");

    char *test1[]         = {"123", "tt", NULL};

    log_filter *tint = loggingFilterSubStr(
        test1,
        LOG_DEBUG,
        loggingHandlerFile("test_interceptor", 1024 * 1024),
        true);

    logger->addFilter(tint);

    printf("\n");
    printf("filter added\n");
    printf("\n");

    Log_info("This is an info message");
    Log_error("This is an error message%s", "123");
    Log_fatal("This is an fatal message");
    Log_debug("This is a debug message");
    Log_warning("This is a warning message%s", "123");

    destroyDefaultLogger();
    return 0;
}

多个子串过滤器

#include "logging.h"
#include <stdbool.h>
#include <stdio.h>
#include <time.h>

int main() {
    Logger *logger = newDefaultLogger("testLogger", LOG_DEBUG);

    Log_info("This is an info message");
    Log_error("This is an error message%s", "123");
    Log_fatal("This is an fatal message");
    Log_debug("This is a debug message");
    Log_warning("This is a warning message%s", "123");

    char *test1[]         = {"This",NULL};

    log_filter *tint = loggingFilterSubStr(
        test1,
        LOG_DEBUG,
        loggingHandlerFile("test_interceptor", 1024 * 1024),
        false);

    logger->addFilter(tint);

    char *test2[]         = {"123",NULL};

    log_filter *tint1 = loggingFilterSubStr(
        test2,
        LOG_DEBUG,
        loggingHandlerFile("test_interceptor1", 1024 * 1024),
        true);

    logger->addFilter(tint1);

    printf("\n");
    printf("filter added\n");
    printf("\n");

    Log_info("This is an info message");
    Log_error("This is an error message%s", "123");
    Log_fatal("This is an fatal message");
    Log_debug("This is a debug message");
    Log_warning("This is a warning message%s", "123");

    destroyDefaultLogger();
    return 0;
}