Main Page | Namespace List | Class Hierarchy | Class List | Directories | File List | Class Members | File Members

memfile.h

Go to the documentation of this file.
00001 /*
00002  * memfile.h
00003  *
00004  * WAV file I/O channel class.
00005  *
00006  * Portable Windows Library
00007  *
00008  * Copyright (c) 2002 Equivalence Pty. Ltd.
00009  *
00010  * The contents of this file are subject to the Mozilla Public License
00011  * Version 1.0 (the "License"); you may not use this file except in
00012  * compliance with the License. You may obtain a copy of the License at
00013  * http://www.mozilla.org/MPL/
00014  *
00015  * Software distributed under the License is distributed on an "AS IS"
00016  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
00017  * the License for the specific language governing rights and limitations
00018  * under the License.
00019  *
00020  * The Original Code is Portable Windows Library.
00021  *
00022  * The Initial Developer of the Original Code is
00023  * Equivalence Pty Ltd
00024  *
00025  * All Rights Reserved.
00026  *
00027  * Contributor(s): ______________________________________.
00028  *
00029  * $Log: memfile.h,v $
00030  * Revision 1.5  2004/11/11 07:34:50  csoutheren
00031  * Added #include <ptlib.h>
00032  *
00033  * Revision 1.4  2002/09/16 01:08:59  robertj
00034  * Added #define so can select if #pragma interface/implementation is used on
00035  *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
00036  *
00037  * Revision 1.3  2002/08/05 05:40:45  robertj
00038  * Fixed missing pragma interface/implementation
00039  *
00040  * Revision 1.2  2002/06/27 03:53:35  robertj
00041  * Cleaned up documentation and added Compare() function.
00042  *
00043  * Revision 1.1  2002/06/26 09:01:19  craigs
00044  * Initial version
00045  *
00046  */
00047 
00048 #ifndef _PMEMFILE
00049 #define _PMEMFILE
00050 
00051 #ifdef P_USE_PRAGMA
00052 #pragma interface
00053 #endif
00054 
00055 #include <ptlib.h>
00056 
00059 class PMemoryFile : public PFile
00060 {
00061   PCLASSINFO(PMemoryFile, PFile);
00062   public:
00067     PMemoryFile();
00068 
00071     PMemoryFile(
00072       const PBYTEArray & data  
00073     );
00075 
00076 
00085     Comparison Compare(
00086       const PObject & obj   
00087     ) const;
00089 
00090 
00104     virtual BOOL Read(
00105       void * buf,   
00106       PINDEX len    
00107     );
00108 
00118     virtual BOOL Write(
00119       const void * buf, 
00120       PINDEX len        
00121     );
00123 
00124 
00133     off_t GetLength() const;
00134       
00141     BOOL SetLength(
00142       off_t len   // New length of file.
00143     );
00144 
00155     BOOL SetPosition(
00156       off_t pos,                         
00157       FilePositionOrigin origin = Start  
00158     );
00159 
00166     off_t GetPosition() const;
00168 
00169 
00174     const PBYTEArray & GetData() const { return data; }
00176 
00177 
00178   protected:
00179     PBYTEArray data;
00180     off_t position;
00181 };
00182 
00183 
00184 #endif // _PMEMFILE
00185 
00186 
00187 // End of File ///////////////////////////////////////////////////////////////
00188 

Generated on Tue Mar 15 10:44:52 2005 for PWLib by  doxygen 1.4.0