C++11日志之spdlog

c&＃43;&＃43;日志工具spdlog

spdlog日志是纯头文件&＃xff0c;使用起来比较方便。使用时只需要简单的初始化即可&＃xff0c;这里对其初始化做了一个简单的封装&＃xff0c;这样使用起来更加方便。

封装类代码

头文件

cspdlog.h

#ifndef _CSPDLOG_H_
#define _CSPDLOG_H_#include "spdlog/spdlog.h"
#include "spdlog/fmt/bin_to_hex.h"
#include
#include class CSpdlog
{
protected:CSpdlog();~CSpdlog();static CSpdlog *m_instance;public:static CSpdlog *GetInstance();void Init(const std::string & name,const std::string &logPath, std::size_t max_size&＃61;1048576, std::size_t max_file &＃61; 2);void SetConsoleLogLevel(spdlog::level::level_enum log_level);void SetFileLogLevel(spdlog::level::level_enum log_level);private:std::vector<spdlog::sink_ptr> m_sinks;std::shared_ptr<spdlog::logger> m_logger;
};#endif


源文件

cspdlog.cpp

#include "cspdlog.h"#include
#include
#include "spdlog/sinks/stdout_color_sinks.h" // or "../stdout_sinks.h" if no color needed
#include "spdlog/sinks/basic_file_sink.h"
#include "spdlog/sinks/rotating_file_sink.h"CSpdlog::CSpdlog()
{}CSpdlog::~CSpdlog()
{}void CSpdlog::Init(const std::string & name, const std::string &log_path, std::size_t max_size, std::size_t max_file )
{try { auto console_sink &＃61; std::make_shared<spdlog::sinks::stdout_color_sink_mt>();console_sink->set_level(spdlog::level::debug);console_sink->set_pattern("%^[%Y-%m-%d %H:%M:%S:%e] [%n] [tid: %t] [%l] %v%$");std::string logFile &＃61; log_path &＃43; "/" &＃43; name &＃43; ".txt";//auto file_sink &＃61; std::make_shared("logs/multisink.txt", false);auto file_sink &＃61; std::make_shared<spdlog::sinks::rotating_file_sink_mt>(logFile, max_size, max_file);file_sink->set_pattern("[%Y-%m-%d %H:%M:%S:%e] [%n] [tid: %t] [%l] %v");file_sink->set_level(spdlog::level::warn);m_sinks.push_back(console_sink);m_sinks.push_back(file_sink);//spdlog::logger *logger &＃61; new spdlog::logger("multi_sink", {console_sink, file_sink});m_logger &＃61; std::make_shared<spdlog::logger>(name, begin( m_sinks ), end( m_sinks ));//spdlog::set_error_handler([](const std::string& msg){printf("*****Custom log error handler, %s*****%\n", msg.c_str());});//注册到spdlog里spdlog::register_logger(m_logger);//m_logger->info("log init done.");m_logger->flush_on(spdlog::level::level_enum::warn); }catch (const spdlog::spdlog_ex &ex){std::cout<<"Log initialization faild"<<ex.what()<<std::endl;}
}void CSpdlog::SetConsoleLogLevel(spdlog::level::level_enum log_level)
{m_logger->set_level(log_level);
}void CSpdlog::SetFileLogLevel(spdlog::level::level_enum log_level)
{m_sinks[1]->set_level(log_level);
}CSpdlog* CSpdlog::m_instance &＃61; NULL;CSpdlog* CSpdlog::GetInstance()
{if ( m_instance &＃61;&＃61; NULL ){m_instance &＃61; new CSpdlog;}return m_instance;
}

测试主程序

#include
#include
#include
#include using namespace std;int main()
{CSpdlog::GetInstance()->Init("test","./log"); //初始化日志CSpdlog::GetInstance()->SetConsoleLogLevel(spdlog::level::debug); //设置终端界面输出级别CSpdlog::GetInstance()->SetFileLogLevel(spdlog::level::warn); //设置log文件输出级别auto logger &＃61; spdlog::get("test"); //获取日志句柄logger->warn("test start.");int counter &＃61; 0; while(1){logger->debug("debug msg, counter: {}",counter);logger->info("info msg, counter: {}",counter);logger->warn("warn msg, counter: {}",counter);logger->error("error msg, counter: {}",counter);logger->critical("critical msg, counter: {}",counter);logger->trace("trace msg, counter: {}",counter);usleep(500000);}return 0;
}

编译运行

我的通用Makefile

#通用makefile
#文件目录
DEBUG_DIR&＃61;.
SRC_DIR&＃61;.
INC_DIR&＃61;. ./spdlogSRC&＃61;$(wildcard $(SRC_DIR)/*.cpp ) #源文件
OBJS&＃61;$(patsubst $(SRC_DIR)/%.cpp,$(DEBUG_DIR)/%.o,$(SRC))#目标文件名
TARGET&＃61;test
INSTALL_PATH ?&＃61; .#修改编译器
ARCH ?&＃61;
CC&＃61;$(ARCH)gcc
CPP&＃61;$(ARCH)g&＃43;&＃43;
AR&＃61;$(ARCH)ar
STRIP&＃61;$(ARCH)stripCFLAGS &＃43;&＃61; -Wall -std&＃61;c&＃43;&＃43;11
LDFLAGS &＃43;&＃61; -lpthreadCFLAGS &＃43;&＃61; $(foreach dir,$(INC_DIR),-I$(dir))all:$(TARGET)
$(TARGET): $(OBJS)$(CPP) $(OBJS) -o $&＃64; $(CFLAGS) $(LDFLAGS)$(STRIP) $(TARGET)
#cp $(TARGET) $(INSTALL_PATH)$(DEBUG_DIR)/%.o: $(SRC_DIR)/%.cpp$(CPP) $(CFLAGS) -c $< -o $&＃64; #&＃64;echo $(SRC)
#&＃64;echo $(OBJS)clean:-rm $(OBJS) $(LIB_TARGET)


编译

make
g&＃43;&＃43; -Wall -std&＃61;c&＃43;&＃43;11 -I. -I./spdlog -c cspdlog.cpp -o cspdlog.o
g&＃43;&＃43; -Wall -std&＃61;c&＃43;&＃43;11 -I. -I./spdlog -c main.cpp -o main.o
g&＃43;&＃43; ./cspdlog.o ./main.o -o test -Wall -std&＃61;c&＃43;&＃43;11 -I. -I./spdlog
strip test


运行

console输出&＃xff1a;

文件输出&＃xff1a;

$cat log/test.txt
[2021-08-17 15:30:59:526] [test] [tid: 20418] [warning] test start.
[2021-08-17 15:30:59:527] [test] [tid: 20418] [warning] warn msg, counter: 0
[2021-08-17 15:30:59:528] [test] [tid: 20418] [error] error msg, counter: 0
[2021-08-17 15:30:59:529] [test] [tid: 20418] [critical] critical msg, counter: 0
[2021-08-17 15:31:00:031] [test] [tid: 20418] [warning] warn msg, counter: 0
[2021-08-17 15:31:00:032] [test] [tid: 20418] [error] error msg, counter: 0
[2021-08-17 15:31:00:032] [test] [tid: 20418] [critical] critical msg, counter: 0
[2021-08-17 15:31:00:533] [test] [tid: 20418] [warning] warn msg, counter: 0
[2021-08-17 15:31:00:533] [test] [tid: 20418] [error] error msg, counter: 0
[2021-08-17 15:31:00:534] [test] [tid: 20418] [critical] critical msg, counter: 0


测试源代码以上传码云

地址&＃xff1a;
https://gitee.com/fensnote/demo_code/tree/master/cpp/spdlog

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