[Core] Added POSIX support (Experimental)

Thanks to Danman
I don't think it actually compile although tried my best to correct
code.


Former-commit-id: c3366c2c924f7392f4d46824dafca63ecf7f1fea

src/Nazara/Core/Posix/DirectoryImpl.hpp

@@ -0,0 +1,47 @@
+// Copyright (C) 2012 Alexandre Janniaux
+// This file is part of the "Nazara Engine - Core module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_DIRECTORYIMPL_HPP
+#define NAZARA_DIRECTORYIMPL_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/NonCopyable.hpp>
+#include <dirent.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+class NzDirectory;
+class NzString;
+
+class NzDirectoryImpl : NzNonCopyable
+{
+	public:
+		NzDirectoryImpl(const NzDirectory* parent);
+		~NzDirectoryImpl() = default;
+
+		void Close();
+
+		NzString GetResultName() const;
+		nzUInt64 GetResultSize() const;
+
+		bool IsResultDirectory() const;
+
+		bool NextResult();
+
+		bool Open(const NzString& dirPath);
+
+		static bool Create(const NzString& dirPath);
+		static bool Exists(const NzString& dirPath);
+		static NzString GetCurrent();
+		static bool Remove(const NzString& dirPath);
+
+	private:
+		DIR* m_handle;
+		dirent64* m_result;
+};
+
+#endif // NAZARA_DIRECTORYIMPL_HPP