text: // Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
  // Distributed under the MIT License (http://opensource.org/licenses/MIT)
  
  #pragma once
  
  #ifndef SPDLOG_HEADER_ONLY
  #include "../sinks/base_sink.h"
  #endif
  
  #include "../common.h"
  #include "../pattern_formatter.h"
  
  #include <memory>
  
  template<typename Mutex>
  SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::base_sink()
      : formatter_{details::make_unique<spdlog::pattern_formatter>()}
  {}
  
  template<typename Mutex>
  SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::base_sink(std::unique_ptr<spdlog::formatter> formatter)
      : formatter_{std::move(formatter)}
  {}
  
  template<typename Mutex>
  void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::log(const details::log_msg &msg)
  {
      std::lock_guard<Mutex> lock(mutex_);
      sink_it_(msg);
  }
  
  template<typename Mutex>
  void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::flush()
  {
      std::lock_guard<Mutex> lock(mutex_);
      flush_();
  }
  
  template<typename Mutex>
  void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_pattern(const std::string &pattern)
  {
      std::lock_guard<Mutex> lock(mutex_);
      set_pattern_(pattern);
  }
  
  template<typename Mutex>
  void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter)
  {
      std::lock_guard<Mutex> lock(mutex_);
      set_formatter_(std::move(sink_formatter));
  }
  
  template<typename Mutex>
  void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_pattern_(const std::string &pattern)
  {
      set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
  }
  
  template<typename Mutex>
  void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter)
  {
      formatter_ = std::move(sink_formatter);
  }
  