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include/platform/filesystem/io_memory.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NIOMEMORY__
+#define	__NIOMEMORY__
+
+
+		#include "filesystem/io_handle.h"
+		#include "container/nlist.h"
+		#include "nstring/nstring.h"
+
+
+namespace GS {
+	namespace IO {
+
+//
+class	MemoryFile
+{
+		friend class Memory;
+
+		String		uri;
+		Array <char> data;
+		size_t		size;		//< Might be != data.GetSize()
+
+		MemoryFile(const char *_uri = 0) : uri(_uri), size(0) {}
+
+public:
+
+		const String &GetUri() const { return uri; }
+		const Array <char> &GetData() const { return data; }
+		size_t		GetSize() const { return size; }
+};
+
+//
+class	MemoryHandle : public Handle
+{
+		friend class Memory;
+
+		MemoryFile	*file;
+		size_t		cursor;
+		Mode		mode;
+
+		MemoryHandle(Base *, MemoryFile *, Mode = ModeRead);
+
+public:
+
+		~MemoryHandle();
+};
+
+/*!
+	@short	Memory I/O.
+	@author	Emmanuel Julien (ejulien@nworks.fr)
+*/
+class	Memory : public Base
+{
+		AutoList <MemoryFile *> fat;
+
+public:
+
+		/// Return the system file allocation table.
+		const List <MemoryFile *> &GetFat() const { return fat; }
+
+virtual	uint		GetCaps() const;
+
+virtual	Handle		*Open(const char *, Mode = ModeRead);
+virtual	void		Close(Handle *);
+
+virtual	bool		Delete(const char *);
+
+virtual	size_t		Tell(Handle *);
+virtual	size_t		Seek(Handle *, ptrdiff_t offset, SeekRef = SeekCurrent);
+
+virtual	size_t		Read(Handle *, void *, size_t);
+virtual	size_t		Write(Handle *, const void *, size_t);
+
+virtual	bool		MkDir(const char *) { return false; }
+};
+
+	}	// IO
+}	// GS
+
+
+#endif	// __NIOMEMORY__