Added _flush() to base_sink

include/spdlog/sinks/ansicolor_sink.h

@@ -42,10 +42,7 @@ public:
         flush();
     }
 
-    void flush() override
-    {
-        fflush(target_file_);
-    }
+    
 
 protected:
     virtual void _sink_it(const details::log_msg& msg) override
@@ -66,6 +63,11 @@ protected:
         }
         flush();
     }
+
+	void _flush() override
+	{
+		fflush(target_file_);
+	}
     FILE* target_file_;
     bool should_do_colors_;
     std::map<level::level_enum, std::string> colors_;

include/spdlog/sinks/base_sink.h

@@ -36,9 +36,14 @@ public:
         std::lock_guard<Mutex> lock(_mutex);
         _sink_it(msg);
     }
+	void flush() SPDLOG_FINAL override
+	{
+		_flush();
+	}
 
 protected:
     virtual void _sink_it(const details::log_msg& msg) = 0;
+	virtual void _flush() = 0;
     Mutex _mutex;
 };
 }

include/spdlog/sinks/dist_sink.h

@@ -44,13 +44,15 @@ protected:
         }
     }
 
+	void _flush() override
+	{
+		std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
+		for (auto &sink : _sinks)
+			sink->flush();
+	}
+
 public:
-    void flush() override
-    {
-        std::lock_guard<Mutex> lock(base_sink<Mutex>::_mutex);
-        for (auto &sink : _sinks)
-            sink->flush();
-    }
+   
 
     void add_sink(std::shared_ptr<sink> sink)
     {

include/spdlog/sinks/file_sinks.h

@@ -33,10 +33,7 @@ public:
     {
         _file_helper.open(filename, truncate);
     }
-    void flush() override
-    {
-        _file_helper.flush();
-    }
+   
     void set_force_flush(bool force_flush)
     {
         _force_flush = force_flush;
@@ -49,6 +46,10 @@ protected:
         if(_force_flush)
             _file_helper.flush();
     }
+	void _flush() override
+	{
+		_file_helper.flush();
+	}
 private:
     details::file_helper _file_helper;
     bool _force_flush;
@@ -76,11 +77,7 @@ public:
         _current_size = _file_helper.size(); //expensive. called only once
     }
 
-    void flush() override
-    {
-        _file_helper.flush();
-    }
-
+    
 protected:
     void _sink_it(const details::log_msg& msg) override
     {
@@ -93,6 +90,11 @@ protected:
         _file_helper.write(msg);
     }
 
+	void _flush() override
+	{
+		_file_helper.flush();
+	}
+
 private:
     static filename_t calc_filename(const filename_t& filename, std::size_t index)
     {
@@ -194,10 +196,6 @@ public:
         _file_helper.open(FileNameCalc::calc_filename(_base_filename));
     }
 
-    void flush() override
-    {
-        _file_helper.flush();
-    }
 
 protected:
     void _sink_it(const details::log_msg& msg) override
@@ -210,6 +208,11 @@ protected:
         _file_helper.write(msg);
     }
 
+	void _flush() override
+	{
+		_file_helper.flush();
+	}
+
 private:
     std::chrono::system_clock::time_point _next_rotation_tp()
     {

include/spdlog/sinks/msvc_sink.h

@@ -30,15 +30,16 @@ public:
     {
     }
 
-    void flush() override
-    {
-    }
+    
 
 protected:
     void _sink_it(const details::log_msg& msg) override
     {
         OutputDebugStringA(msg.formatted.c_str());
     }
+
+	void _flush() override
+	{}
 };
 
 typedef msvc_sink<std::mutex> msvc_sink_mt;

include/spdlog/sinks/null_sink.h

@@ -22,7 +22,7 @@ protected:
     void _sink_it(const details::log_msg&) override
     {}
 
-    void flush() override
+    void _flush() override
     {}
 
 };

include/spdlog/sinks/stdout_sinks.h

@@ -29,14 +29,14 @@ public:
         static std::shared_ptr<MyType> instance = std::make_shared<MyType>();
         return instance;
     }
-
+protected:
     void _sink_it(const details::log_msg& msg) override
     {
         fwrite(msg.formatted.data(), sizeof(char), msg.formatted.size(), stdout);
         flush();
     }
 
-    void flush() override
+    void _flush() override
     {
         fflush(stdout);
     }
@@ -58,14 +58,14 @@ public:
         static std::shared_ptr<MyType> instance = std::make_shared<MyType>();
         return instance;
     }
-
+protected:
     void _sink_it(const details::log_msg& msg) override
     {
         fwrite(msg.formatted.data(), sizeof(char), msg.formatted.size(), stderr);
         flush();
     }
 
-    void flush() override
+    void _flush() override
     {
         fflush(stderr);
     }

include/spdlog/sinks/wincolor_sink.h

@@ -50,6 +50,7 @@ public:
     wincolor_sink(const wincolor_sink& other) = delete;
     wincolor_sink& operator=(const wincolor_sink& other) = delete;
 
+protected:
     virtual void _sink_it(const details::log_msg& msg) override
     {
         auto color = colors_[msg.level];
@@ -58,7 +59,7 @@ public:
         SetConsoleTextAttribute(out_handle_, orig_attribs); //reset to orig colors
     }
 
-    virtual void flush() override
+    virtual void _flush() override
     {
         // windows console always flushed?
     }