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3rdparty/spdlog-1.9.2/include/spdlog/details/registry.h 3.57 KB
3d2ab595   Hu Chunming   支持gb28181
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  // Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
  // Distributed under the MIT License (http://opensource.org/licenses/MIT)
  
  #pragma once
  
  // Loggers registry of unique name->logger pointer
  // An attempt to create a logger with an already existing name will result with spdlog_ex exception.
  // If user requests a non existing logger, nullptr will be returned
  // This class is thread safe
  
  #include <spdlog/common.h>
  
  #include <chrono>
  #include <functional>
  #include <memory>
  #include <string>
  #include <unordered_map>
  #include <mutex>
  
  namespace spdlog {
  class logger;
  
  namespace details {
  class thread_pool;
  class periodic_worker;
  
  class SPDLOG_API registry
  {
  public:
      using log_levels = std::unordered_map<std::string, level::level_enum>;
      registry(const registry &) = delete;
      registry &operator=(const registry &) = delete;
  
      void register_logger(std::shared_ptr<logger> new_logger);
      void initialize_logger(std::shared_ptr<logger> new_logger);
      std::shared_ptr<logger> get(const std::string &logger_name);
      std::shared_ptr<logger> default_logger();
  
      // Return raw ptr to the default logger.
      // To be used directly by the spdlog default api (e.g. spdlog::info)
      // This make the default API faster, but cannot be used concurrently with set_default_logger().
      // e.g do not call set_default_logger() from one thread while calling spdlog::info() from another.
      logger *get_default_raw();
  
      // set default logger.
      // default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
      void set_default_logger(std::shared_ptr<logger> new_default_logger);
  
      void set_tp(std::shared_ptr<thread_pool> tp);
  
      std::shared_ptr<thread_pool> get_tp();
  
      // Set global formatter. Each sink in each logger will get a clone of this object
      void set_formatter(std::unique_ptr<formatter> formatter);
  
      void enable_backtrace(size_t n_messages);
  
      void disable_backtrace();
  
      void set_level(level::level_enum log_level);
  
      void flush_on(level::level_enum log_level);
  
      void flush_every(std::chrono::seconds interval);
  
      void set_error_handler(err_handler handler);
  
      void apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun);
  
      void flush_all();
  
      void drop(const std::string &logger_name);
  
      void drop_all();
  
      // clean all resources and threads started by the registry
      void shutdown();
  
      std::recursive_mutex &tp_mutex();
  
      void set_automatic_registration(bool automatic_registration);
  
      // set levels for all existing/future loggers. global_level can be null if should not set.
      void set_levels(log_levels levels, level::level_enum *global_level);
  
      static registry &instance();
  
  private:
      registry();
      ~registry();
  
      void throw_if_exists_(const std::string &logger_name);
      void register_logger_(std::shared_ptr<logger> new_logger);
      bool set_level_from_cfg_(logger *logger);
      std::mutex logger_map_mutex_, flusher_mutex_;
      std::recursive_mutex tp_mutex_;
      std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
      log_levels log_levels_;
      std::unique_ptr<formatter> formatter_;
      spdlog::level::level_enum global_log_level_ = level::info;
      level::level_enum flush_level_ = level::off;
      err_handler err_handler_;
      std::shared_ptr<thread_pool> tp_;
      std::unique_ptr<periodic_worker> periodic_flusher_;
      std::shared_ptr<logger> default_logger_;
      bool automatic_registration_ = true;
      size_t backtrace_n_messages_ = 0;
  };
  
  } // namespace details
  } // namespace spdlog
  
  #ifdef SPDLOG_HEADER_ONLY
  #    include "registry-inl.h"
  #endif