fsio.h

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: fsio.h,v 1.1.50.3 2004/07/09 01:44:45 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
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 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
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 * will apply. You may also obtain the license terms directly from
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 * This file is part of the Helix DNA Technology. RealNetworks is the
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 * ***** END LICENSE BLOCK ***** */

#ifndef _FSIO_H_
#define _FSIO_H_ 

#include "sio.h"

#define FSIO HX_FSIO
#define SET_OFFSET 1

class IO;

class FSIO: public SIO {
public:
			FSIO(IO* i, int blksize);
			FSIO(const char* name, int flags, mode_t mode = 0);
			~FSIO();
	int		set_bufsize(int size);
	int		get_bufsize();
	Byte*		read_alloc(int& size, off_t seek, int whence);
	Byte*		write_alloc(int& size, off_t seek, int whence);
	off_t		read_seek(off_t off, int whence);
	off_t		write_seek(off_t off, int whence);
	int		read_pushback(Byte* buf, int len);
	char *		get_pathname() { return pathname; }
	int		get_would_block();

private:
	char		*pathname;
	mode_t		mode;
	int		bufsize;
	Byte*		_read_alloc(int& size);
	void		_read_free(Byte* buf);
	Byte*		_write_alloc(int& size);
	int		_write_free(Byte* buf);
	int		_write_flush(Region* reg);
	off_t		file_size();
	int		would_block;
};

#endif /* _FSIO_H_ */