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memfile.h
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1 /*
2 * memfile.h
3 *
4 * WAV file I/O channel class.
5 *
6 * Portable Windows Library
7 *
8 * Copyright (c) 2002 Equivalence Pty. Ltd.
9 *
10 * The contents of this file are subject to the Mozilla Public License
11 * Version 1.0 (the "License"); you may not use this file except in
12 * compliance with the License. You may obtain a copy of the License at
13 * http://www.mozilla.org/MPL/
14 *
15 * Software distributed under the License is distributed on an "AS IS"
16 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
17 * the License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * The Original Code is Portable Windows Library.
21 *
22 * The Initial Developer of the Original Code is
23 * Equivalence Pty Ltd
24 *
25 * All Rights Reserved.
26 *
27 * Contributor(s): ______________________________________.
28 *
29 * $Revision: 26950 $
30 * $Author: rjongbloed $
31 * $Date: 2012-02-08 13:37:08 +1100 (Wed, 08 Feb 2012) $
32 */
33
34 #ifndef PTLIB_PMEMFILE_H
35 #define PTLIB_PMEMFILE_H
36
37 #ifdef P_USE_PRAGMA
38 #pragma interface
39 #endif
40
41
44 class PMemoryFile : public PFile
45 {
46 PCLASSINFO(PMemoryFile, PFile);
47 public:
52 PMemoryFile();
53
56 PMemoryFile(
57 const PBYTEArray & data
58 );
59
62 ~PMemoryFile();
64
65
74 Comparison Compare(
75 const PObject & obj
76 ) const;
78
79
93 virtual PBoolean Open(
94 OpenMode mode = ReadWrite, // Mode in which to open the file.
95 int opts = ModeDefault // Options for open operation.
96 );
97
108 virtual PBoolean Open(
109 const PFilePath & name, // Name of file to open.
110 OpenMode mode = ReadWrite, // Mode in which to open the file.
111 int opts = ModeDefault // <code>OpenOptions</code> enum# for open operation.
112 );
113
118 virtual PBoolean Close();
119
131 virtual PBoolean Read(
132 void * buf,
133 PINDEX len
134 );
135
145 virtual PBoolean Write(
146 const void * buf,
147 PINDEX len
148 );
150
151
160 virtual off_t GetLength() const;
161
168 virtual PBoolean SetLength(
169 off_t len
170 );
171
182 virtual PBoolean SetPosition(
183 off_t pos,
184 FilePositionOrigin origin = Start
185 );
186
193 virtual off_t GetPosition() const;
195
196
201 const PBYTEArray & GetData() const { return m_data; }
203
204
205 protected:
206 PBYTEArray m_data;
207 off_t m_position;
208 };
209
210
211 #endif // PTLIB_PMEMFILE_H
212
213
214 // End of File ///////////////////////////////////////////////////////////////