PTLib  Version 2.10.4
memfile.h
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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  * $Revision: 26949 $
00030  * $Author: rjongbloed $
00031  * $Date: 2012-02-07 20:27:07 -0600 (Tue, 07 Feb 2012) $
00032  */
00033 
00034 #ifndef PTLIB_PMEMFILE_H
00035 #define PTLIB_PMEMFILE_H
00036 
00037 #ifdef P_USE_PRAGMA
00038 #pragma interface
00039 #endif
00040 
00041 
00044 class PMemoryFile : public PFile
00045 {
00046   PCLASSINFO(PMemoryFile, PFile);
00047   public:
00052     PMemoryFile();
00053 
00056     PMemoryFile(
00057       const PBYTEArray & data  
00058     );
00059 
00062     ~PMemoryFile();
00064 
00065 
00074     Comparison Compare(
00075       const PObject & obj   
00076     ) const;
00078 
00079 
00093     virtual PBoolean Open(
00094       OpenMode mode = ReadWrite,  // Mode in which to open the file.
00095       int opts = ModeDefault      // Options for open operation.
00096     );
00097 
00108     virtual PBoolean Open(
00109       const PFilePath & name,    // Name of file to open.
00110       OpenMode mode = ReadWrite, // Mode in which to open the file.
00111       int opts = ModeDefault     // <code>OpenOptions</code> enum# for open operation.
00112     );
00113       
00118     virtual PBoolean Close();
00119 
00131     virtual PBoolean Read(
00132       void * buf,   
00133       PINDEX len    
00134     );
00135 
00145     virtual PBoolean Write(
00146       const void * buf, 
00147       PINDEX len        
00148     );
00150 
00151 
00160     virtual off_t GetLength() const;
00161       
00168     virtual PBoolean SetLength(
00169       off_t len   
00170     );
00171 
00182     virtual PBoolean SetPosition(
00183       off_t pos,                         
00184       FilePositionOrigin origin = Start  
00185     );
00186 
00193     virtual off_t GetPosition() const;
00195 
00196 
00201     const PBYTEArray & GetData() const { return m_data; }
00203 
00204 
00205   protected:
00206     PBYTEArray m_data;
00207     off_t      m_position;
00208 };
00209 
00210 
00211 #endif // PTLIB_PMEMFILE_H
00212 
00213 
00214 // End of File ///////////////////////////////////////////////////////////////
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