Network: Add SocketPoller class

Former-commit-id: 86b9266d904551d19e7ec8e8d6bbe5f137e8d29f [formerly 34575937d84f796cfe36a5ab97ea1f787c1506ba] [formerly 6c8c621523800958ad38eef118fcb3687c34b367 [formerly a1f1330fbe6f990a21bbe6dccfe727edec0e2b44]]
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Former-commit-id: 7becccdf2d8aac7cdf526d855215d7d144be284c

src/Nazara/Network/Win32/IpAddressImpl.hpp

@@ -2,6 +2,11 @@
 // 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_IPADDRESSIMPL_HPP
+#define NAZARA_IPADDRESSIMPL_HPP
+
 #include <Nazara/Network/IpAddress.hpp>
 #include <winsock2.h>
 #include <ws2tcpip.h>
@@ -33,3 +38,5 @@ namespace Nz
 			static ResolveError TranslateWSAErrorToResolveError(int error);
 	};
 }
+
+#endif // NAZARA_IPADDRESSIMPL_HPP