Add thread unregistering in log

libs/async/source/threadpool.cpp

@@ -21,9 +21,9 @@ namespace psemek::async
 		for (std::size_t th = 0; th < thread_count; ++th)
 		{
 			std::string tname = thread_count == 1 ? name : util::to_string(name, '#', th);
-			threads_.emplace_back([this, tname = std::move(tname)]
+			threads_.emplace_back([this, tname = std::move(tname)]() mutable
 			{
-				log::register_thread(tname);
+				log::thread_registrator reg(std::move(tname));
 				for (bool running = true; running;)
 				{
 					auto task = task_queue_.pop();

libs/log/include/psemek/log/log.hpp

@@ -13,6 +13,28 @@ namespace psemek::log
 
 	void register_thread(std::string name);
 	void register_thread(std::thread::id id, std::string name);
+	void unregister_thread(std::thread::id id);
+
+	struct [[maybe_unused]] thread_registrator
+	{
+		thread_registrator(std::string name, std::thread::id id)
+			: id_{id}
+		{
+			register_thread(id_, std::move(name));
+		}
+
+		thread_registrator(std::string name)
+			: thread_registrator(std::move(name), std::this_thread::get_id())
+		{}
+
+		~thread_registrator()
+		{
+			unregister_thread(id_);
+		}
+
+	private:
+		std::thread::id id_;
+	};
 
 	void put_message(level l, std::string const & message);
 

libs/log/source/log.cpp

@@ -45,6 +45,27 @@ namespace psemek::log
 		put_message(level::info, "Thread \"" + name + "\" registered");
 	}
 
+	void unregister_thread(std::thread::id id)
+	{
+		std::string name;
+		{
+			std::lock_guard lock{thread_names_mutex};
+
+			auto it = thread_names.find(id);
+			if (it == thread_names.end())
+			{
+				std::ostringstream os;
+				os << "Thread " << id << " not found!";
+				throw std::runtime_error(os.str());
+			}
+
+			name = it->second;
+			thread_names.erase(it);
+		}
+
+		put_message(level::info, "Thread \"" + name + "\" unregistered");
+	}
+
 	static ::tm safe_localtime(std::time_t const & time)
 	{
 		static std::mutex mutex;