Add all the files

src/util/EventService.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include "util/helpers/Singleton.h"
+
+#include <boost/signals2.hpp>
+#include <boost/bind/placeholders.hpp>
+
+enum class Events : int32_t
+{
+	ControllerChanged,
+};
+
+using ControllerChangedFunc = void(void);
+
+class EventService : public Singleton<EventService>
+{
+	friend class Singleton<EventService>;
+	EventService() = default;
+
+public:
+	template <Events event, typename TFunc, typename TClass>
+	boost::signals2::connection connect(TFunc function, TClass thisptr)
+	{
+		using namespace boost::placeholders;
+		if constexpr (event == Events::ControllerChanged)
+			return m_controller_changed_signal.connect(boost::bind(function, thisptr));
+		else
+		{
+			cemu_assert_suspicious();
+		}
+	}
+
+	template <Events event>
+	void disconnect(const boost::signals2::connection& slot)
+	{
+		using namespace boost::placeholders;
+		if constexpr (event == Events::ControllerChanged)
+			m_controller_changed_signal.disconnect(slot);
+		else
+		{
+			cemu_assert_suspicious();
+		}
+	}
+
+	template <Events event, typename ... TArgs>
+	void signal(TArgs&&... args)
+	{
+		try
+		{
+			if constexpr (event == Events::ControllerChanged)
+				m_controller_changed_signal(std::forward<TArgs>(args)...);
+			else
+			{
+				cemu_assert_suspicious();
+			}
+		}
+		catch (const std::exception& ex)
+		{
+			cemuLog_force("error when signaling {}: {}", event, ex.what());
+		}
+	}
+
+private:
+	boost::signals2::signal<ControllerChangedFunc> m_controller_changed_signal;
+
+};