Add stdio logger.

1 files changed, 49 insertions, 30 deletions

diff --git a/include/cru/base/log/Logger.h b/include/cru/base/log/Logger.h
index 8f7c32e0..671d004e 100644
--- a/include/cru/base/log/Logger.h
+++ b/include/cru/base/log/Logger.h
@@ -30,28 +30,19 @@ struct CRU_BASE_API ILogTarget : virtual Interface {
   virtual void Write(LogLevel level, std::string s) = 0;
 };
 
-class CRU_BASE_API Logger : public Object {
- public:
-  static Logger* GetInstance();
-
- public:
-  Logger();
-  ~Logger() override;
-
- public:
-  void AddLogTarget(std::unique_ptr<ILogTarget> source);
-  void RemoveLogTarget(ILogTarget* source);
+struct CRU_BASE_API ILogger : virtual Interface {
+  static ILogger* GetInstance();
 
-  void AddDebugTag(std::string tag);
-  void RemoveDebugTag(const std::string& tag);
+  virtual void AddDebugTag(std::string tag) = 0;
+  virtual void RemoveDebugTag(const std::string& tag) = 0;
   void LoadDebugTagFromEnv(const char* env_var = "CRU_LOG_DEBUG",
                            std::string sep = ",");
 
- public:
+  virtual void Log(LogInfo log_info) = 0;
+
   void Log(LogLevel level, std::string tag, std::string message) {
     Log(LogInfo(level, std::move(tag), std::move(message)));
   }
-  void Log(LogInfo log_info);
 
   template <typename... Args>
   void FormatLog(LogLevel level, std::string tag,
@@ -61,6 +52,35 @@ class CRU_BASE_API Logger : public Object {
         std::vformat(message_format, std::make_format_args(args...)));
   }
 
+ protected:
+  std::unordered_set<std::string> debug_tags_;
+};
+
+class CRU_BASE_API SimpleStdioLogger : public Object, public virtual ILogger {
+ public:
+  void AddDebugTag(std::string tag) override;
+  void RemoveDebugTag(const std::string& tag) override;
+  void Log(LogInfo log_info) override;
+
+ private:
+  std::unordered_set<std::string> debug_tags_;
+};
+
+class CRU_BASE_API Logger : public Object, public virtual ILogger {
+ public:
+  Logger();
+  ~Logger() override;
+
+ public:
+  void AddDebugTag(std::string tag) override;
+  void RemoveDebugTag(const std::string& tag) override;
+
+  void AddLogTarget(std::unique_ptr<ILogTarget> source);
+  void RemoveLogTarget(ILogTarget* source);
+
+ public:
+  void Log(LogInfo log_info) override;
+
  private:
   void LogThreadRun();
 
@@ -78,8 +98,7 @@ class CRU_BASE_API Logger : public Object {
 
 class CRU_BASE_API LoggerCppStream : public Object {
  public:
-  explicit LoggerCppStream(Logger* logger, LogLevel level, std::string tag);
-  ~LoggerCppStream() override = default;
+  explicit LoggerCppStream(ILogger* logger, LogLevel level, std::string tag);
 
   LoggerCppStream WithLevel(LogLevel level) const;
   LoggerCppStream WithTag(std::string tag) const;
@@ -100,25 +119,25 @@ class CRU_BASE_API LoggerCppStream : public Object {
   }
 
  private:
-  Logger* logger_;
+  ILogger* logger_;
   LogLevel level_;
   std::string tag_;
 };
 
 }  // namespace cru::log
 
-#define CRU_LOG_TAG_DEBUG(...)                                          \
-  cru::log::Logger::GetInstance()->FormatLog(cru::log::LogLevel::Debug, \
-                                             kLogTag, __VA_ARGS__)
+#define CRU_LOG_TAG_DEBUG(...)                                           \
+  cru::log::ILogger::GetInstance()->FormatLog(cru::log::LogLevel::Debug, \
+                                              kLogTag, __VA_ARGS__)
 
-#define CRU_LOG_TAG_INFO(...)                                          \
-  cru::log::Logger::GetInstance()->FormatLog(cru::log::LogLevel::Info, \
-                                             kLogTag, __VA_ARGS__)
+#define CRU_LOG_TAG_INFO(...)                                           \
+  cru::log::ILogger::GetInstance()->FormatLog(cru::log::LogLevel::Info, \
+                                              kLogTag, __VA_ARGS__)
 
-#define CRU_LOG_TAG_WARN(...)                                          \
-  cru::log::Logger::GetInstance()->FormatLog(cru::log::LogLevel::Warn, \
-                                             kLogTag, __VA_ARGS__)
+#define CRU_LOG_TAG_WARN(...)                                           \
+  cru::log::ILogger::GetInstance()->FormatLog(cru::log::LogLevel::Warn, \
+                                              kLogTag, __VA_ARGS__)
 
-#define CRU_LOG_TAG_ERROR(...)                                          \
-  cru::log::Logger::GetInstance()->FormatLog(cru::log::LogLevel::Error, \
-                                             kLogTag, __VA_ARGS__)
+#define CRU_LOG_TAG_ERROR(...)                                           \
+  cru::log::ILogger::GetInstance()->FormatLog(cru::log::LogLevel::Error, \
+                                              kLogTag, __VA_ARGS__)