封装spdlog库

spdlog库

1. 网址：https://github.com/gabime/spdlog
2. 特性：
   • 支持控制台或异步文件输出
   • 支持控制台彩色输出

封装

• Logger.h

  #pragma once
  #include "Framework/Utility/Singleton.h"
  #include <spdlog/spdlog.h>
  #include <filesystem>
  
  namespace fs = std::filesystem;
  
  class Logger : public Singleton<Logger>
  {
  public:
      Logger(token);
      ~Logger();
  
      std::shared_ptr<spdlog::logger> getLogger()
      {
          return mLogger;
      }
  
      void setLogLevel(std::string level);
  
  private:
      std::shared_ptr<spdlog::logger> mLogger;
      fs::path mLogDir = fs::current_path();
      std::string mLogNamePrefix = "log_";
      bool mConsole = true;
      std::string mLevel = "debug";
  };
  
  // 有代码行号
  // #define LOG_TRACE(...)      SPDLOG_LOGGER_CALL(Logger::instance().getLogger().get(), spdlog::level::trace, __VA_ARGS__)
  // #define LOG_DEBUG(...)      SPDLOG_LOGGER_CALL(Logger::instance().getLogger().get(), spdlog::level::debug, __VA_ARGS__)
  // #define LOG_INFO(...)       SPDLOG_LOGGER_CALL(Logger::instance().getLogger().get(), spdlog::level::info, __VA_ARGS__)
  // #define LOG_WARN(...)       SPDLOG_LOGGER_CALL(Logger::instance().getLogger().get(), spdlog::level::warn, __VA_ARGS__)
  // #define LOG_ERROR(...)      SPDLOG_LOGGER_CALL(Logger::instance().getLogger().get(), spdlog::level::err, __VA_ARGS__)
  // #define LOG_CRITICAL(...)   SPDLOG_LOGGER_CALL(Logger::instance().getLogger().get(), spdlog::level::critical, __VA_ARGS__)
  
  // 没有代码行号
  #define LOG_TRACE(...)       Logger::instance().getLogger().get()->trace(__VA_ARGS__)
  #define LOG_DEBUG(...)       Logger::instance().getLogger().get()->debug(__VA_ARGS__)
  #define LOG_INFO(...)        Logger::instance().getLogger().get()->info(__VA_ARGS__)
  #define LOG_WARN(...)        Logger::instance().getLogger().get()->warn(__VA_ARGS__)
  #define LOG_ERROR(...)       Logger::instance().getLogger().get()->error(__VA_ARGS__)
  #define LOG_CRITICAL(...)    Logger::instance().getLogger().get()->critical(__VA_ARGS__)

• Logger.cpp

  #include "Logger.h"
  #include <spdlog/async.h>
  #include <spdlog/sinks/rotating_file_sink.h>
  #include <spdlog/sinks/stdout_color_sinks.h>
  #include <iostream>
  
  Logger::Logger(token)
  {
      try {
          const std::string loggerName = mLogNamePrefix + std::string("test");
          if (mConsole) {
              mLogger = spdlog::stdout_color_mt(loggerName);
          } else {
              // multi part log files, with every part 50M, max 100 files
              mLogger = spdlog::create_async<spdlog::sinks::rotating_file_sink_mt>(
                  loggerName, mLogDir.append(loggerName + ".log").u8string(), 50 * 1024 * 1024, 100);
          }
  
          setLogLevel(mLevel);
  
          mLogger->set_pattern("[T:%-6t] %+");
      } catch (const spdlog::spdlog_ex& ex) {
          std::cout << "[Logger] Initialization failed: " << ex.what() << std::endl;
      }
  }
  
  Logger::~Logger()
  {
      spdlog::shutdown();
  }
  
  void Logger::setLogLevel(std::string level)
  {
      mLevel = level;
  
      if (mLevel == "trace") {
          mLogger->set_level(spdlog::level::trace);
          mLogger->flush_on(spdlog::level::trace);
      } else if (mLevel == "debug") {
          mLogger->set_level(spdlog::level::debug);
          mLogger->flush_on(spdlog::level::debug);
      } else if (mLevel == "info") {
          mLogger->set_level(spdlog::level::info);
          mLogger->flush_on(spdlog::level::info);
      } else if (mLevel == "warn") {
          mLogger->set_level(spdlog::level::warn);
          mLogger->flush_on(spdlog::level::warn);
      } else if (mLevel == "error") {
          mLogger->set_level(spdlog::level::err);
          mLogger->flush_on(spdlog::level::err);
      } else if (mLevel == "critical") {
          mLogger->set_level(spdlog::level::critical);
          mLogger->flush_on(spdlog::level::critical);
      }
  }

使用

#include "Logger.h"

LOG_INFO("Wlecome to use {0} and {1}", "Logger", "Singleton");