1 /*
2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_FILE_IMPL_H_
12 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_FILE_IMPL_H_
13 
14 #include "file_wrapper.h"
15 
16 #include <stdio.h>
17 
18 namespace webrtc {
19 
20 class FileWrapperImpl : public FileWrapper
21 {
22 public:
23     FileWrapperImpl();
24     virtual ~FileWrapperImpl();
25 
26     virtual int FileName(char* fileNameUTF8,
27                          size_t size) const;
28 
29     virtual bool Open() const;
30 
31     virtual int OpenFile(const char* fileNameUTF8,
32                          bool readOnly,
33                          bool loop = false,
34                          bool text = false);
35 
36     virtual int CloseFile();
37     virtual int SetMaxFileSize(size_t bytes);
38     virtual int Flush();
39 
40     virtual int Read(void* buf, int length);
41     virtual bool Write(const void *buf, int length);
42     virtual int WriteText(const char* format, ...);
43     virtual int Rewind();
44 
45 private:
46     FILE* _id;
47     bool _open;
48     bool _looping;
49     bool _readOnly;
50     size_t _maxSizeInBytes; // -1 indicates file size limitation is off
51     size_t _sizeInBytes;
52     char _fileNameUTF8[kMaxFileNameSize];
53 };
54 
55 } // namespace webrtc
56 
57 #endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_FILE_IMPL_H_
58