Network/SocketPoller: Switch to epoll implementation on Linux

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src/Nazara/Network/Linux/SocketPollerImpl.hpp

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+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Network module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_SOCKETPOLLERIMPL_HPP
+#define NAZARA_SOCKETPOLLERIMPL_HPP
+
+#include <Nazara/Network/IpAddress.hpp>
+#include <Nazara/Network/SocketHandle.hpp>
+#include <Nazara/Network/Posix/SocketImpl.hpp>
+#include <unordered_set>
+#include <vector>
+#include <sys/epoll.h>
+
+namespace Nz
+{
+	class SocketPollerImpl
+	{
+		public:
+			SocketPollerImpl();
+			~SocketPollerImpl();
+
+			void Clear();
+
+			bool IsReady(SocketHandle socket) const;
+			bool IsRegistered(SocketHandle socket) const;
+
+			bool RegisterSocket(SocketHandle socket);
+			void UnregisterSocket(SocketHandle socket);
+
+			int Wait(UInt64 msTimeout, SocketError* error);
+
+		private:
+			std::unordered_set<SocketHandle> m_activeSockets;
+			std::unordered_set<SocketHandle> m_sockets;
+			std::vector<epoll_event> m_events;
+			int m_handle;
+	};
+}
+
+#endif // NAZARA_SOCKETPOLLERIMPL_HPP