106 lines
2.9 KiB
Markdown
106 lines
2.9 KiB
Markdown
# C语言日志库logging
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## 简介
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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。
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## 功能
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- 支持日志级别：DEBUG、INFO、WARN、ERROR、FATAL
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- 支持日志格式：时间戳、日志级别、日志内容
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- 支持日志输出：控制台、文件
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- 支持日志文件：自动创建、自动滚动、自动删除(未完成)
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## 使用方法
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### 控制台日志
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```c
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#include "logging.h"
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int main() {
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Logging *log = newLogging();
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Logger *logger = log->getLogger("testLogger", LOG_DEBUG);
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logger->info("This is an info message");
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logger->error("你好,这是一个错误消息%s", "123");
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logger->fatal("This is an fatal message");
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logger->debug("This is a debug message");
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logger->warning("This is a warning message%s", "123");
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log->destroyLogging(log);
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return 0;
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}
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```
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### 文件日志
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```c
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#include "logging.h"
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int main() {
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Logging *log = newLogging();
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Logger *logger = log->getLogger("testLogger",LOG_DEBUG);
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logger->addHandler(loggingFileHandler("test")); //为日志对象添加文件处理器
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logger->info("This is an info message");
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logger->error("你好,这是一个错误消息%s", "123");
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logger->fatal("This is an fatal message");
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logger->debug("This is a debug message");
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logger->warning("This is a warning message%s", "123");
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log->destroyLogging(log);
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return 0;
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}
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```
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### 日志拦截器
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> 支持添加自定义的拦截器， 目前内置了子串拦截器
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> 拦截器的作用:可以将拦截到的日志重定向到拦截器的专属处理器中
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#### 例子
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将拦截到的日志重定向到专属文件处理器中
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```c
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#include "logging.h"
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#include <stdio.h>
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int main() {
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Logging *log = newLogging();
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Logger *logger = log->getLogger("testLogger", LOG_DEBUG);
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logger->info("This is an info message");
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logger->error("你好,这是一个错误消息%s", "123");
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logger->fatal("This is an fatal message");
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logger->debug("This is a debug message");
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logger->warning("This is a warning message%s", "123");
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char *test1[] = {"123", "你好"}; // 要拦截的字符串
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// 添加拦截器，将拦截到的日志重定向到拦截器的专属处理器中
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log_Interceptor *tint =
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loggingSubStringInterceptor(test1, 2, LOG_DEBUG, loggingFileHandler("被拦截"));
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logger->addInterceptor(tint);
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printf("\n");
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printf("Interceptor added\n");
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printf("\n");
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logger->info("This is an info message");
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logger->error("你好,这是一个错误消息%s", "123");
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logger->fatal("This is an fatal message");
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logger->debug("This is a debug message");
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logger->warning("This is a warning message%s", "123");
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log->destroyLogging(log);
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return 0;
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}
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```
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# build
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```shell
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conan create . --build=missing
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``` |