[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/FileImpl.hpp

@@ -0,0 +1,56 @@
+// 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_FILEIMPL_HPP
+#define NAZARA_FILEIMPL_HPP
+
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE
+#endif
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/File.hpp>
+#include <Nazara/Core/NonCopyable.hpp>
+#include <ctime>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+class NzFile;
+class NzString;
+
+class NzFileImpl : NzNonCopyable
+{
+	public:
+		NzFileImpl(const NzFile* parent);
+		~NzFileImpl() = default;
+
+		void Close();
+		bool EndOfFile() const;
+		void Flush();
+		nzUInt64 GetCursorPos() const;
+		bool Open(const NzString& filePath, unsigned int mode);
+		std::size_t Read(void* buffer, std::size_t size);
+		bool SetCursorPos(NzFile::CursorPosition pos, nzInt64 offset);
+		std::size_t Write(const void* buffer, std::size_t size);
+
+		static bool Copy(const NzString& sourcePath, const NzString& targetPath);
+		static bool Delete(const NzString& filePath);
+		static bool Exists(const NzString& filePath);
+		static time_t GetCreationTime(const NzString& filePath);
+		static time_t GetLastAccessTime(const NzString& filePath);
+		static time_t GetLastWriteTime(const NzString& filePath);
+		static nzUInt64 GetSize(const NzString& filePath);
+		static bool Rename(const NzString& sourcePath, const NzString& targetPath);
+
+	private:
+		int m_fileDescriptor;
+		mutable bool m_endOfFile;
+		mutable bool m_endOfFileUpdated;
+};
+
+#endif // NAZARA_FILEIMPL_HPP