cunixf.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: cunixf.h,v 1.2.42.3 2004/07/09 01:44:23 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
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 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
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 * to use your version of this file under the terms of either the RPSL
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 * use your version of this file under the terms of any one of the
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 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
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 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
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 * Contributor(s):
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 * ***** END LICENSE BLOCK ***** */

#ifndef CUNIXFILE_H
#define CUNIXFILE_H

#include <unistd.h>
#include <chxdataf.h>

class CUnixFile : public CHXDataFile {

public:

        CUnixFile                      (void);
       ~CUnixFile                      (void);

/*      Create creates a file using the specified mode
        returns HXR_OK or -1 if an error occurred */

        virtual HX_RESULT      Create(const char *filename, UINT16 mode, BOOL textflag = 0);

/*      Open will open a file with the specified mode
        returns HXR_OK or -1 if an error occurred */

        virtual HX_RESULT       Open(const char *filename, UINT16 mode, BOOL textflag = 0);

/*      Close closes a file */

        virtual HX_RESULT		Close(void);
        virtual HX_RESULT       	Delete(const char *filename);

/*      Seek moves the current file position to the offset from the
        fromWhere specifier returns HXR_OK or -1 if an error occurred */

        virtual HX_RESULT		Seek(ULONG32 offset, UINT16 fromWhere);

/*      Tell returns the current file position in the file */

        virtual ULONG32        Tell(void);

/*      Read reads up to count bytes of data into buf.
        returns the number of bytes read, EOF, or -1 if the read failed */

        virtual ULONG32        Read(char *buf, ULONG32 count);

/*      Write writes up to count bytes of data from buf.
        returns the number of bytes written, or -1 if the write failed */

        virtual ULONG32        Write(const char *buf, ULONG32 count);

/*      Rewind sets the file position to the start of file
        returns HXR_OK or -1 if an error occurred */

        virtual HX_RESULT		Rewind(void);

/*      Returns the size of the file in bytes */
        virtual ULONG32         GetSize                 (void);

/*		Return the file descriptor						*/
		
        virtual INT16          GetFd(void) { return mFD; };
	virtual BOOL GetTemporaryFileName(const char *tag, char* name, UINT32 ulBufLen);


protected:

        int						mFD;                    // file descriptor of open file
};

#endif  // CUNIXFILE_H