cunixf.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 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 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (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 the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable 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.  
 *  
 * 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 ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** 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