system_wrappers: rename interface -> include

webrtc/system_wrappers/interface/file_wrapper.h

-/*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_FILE_WRAPPER_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_FILE_WRAPPER_H_
-
-#include <stddef.h>
-#include <stdio.h>
-
-#include "webrtc/common_types.h"
-#include "webrtc/typedefs.h"
-
-// Implementation of an InStream and OutStream that can read (exclusive) or
-// write from/to a file.
-
-namespace webrtc {
-
-class FileWrapper : public InStream, public OutStream {
- public:
-  static const size_t kMaxFileNameSize = 1024;
-
-  // Factory method. Constructor disabled.
-  static FileWrapper* Create();
-
-  // Returns true if a file has been opened.
-  virtual bool Open() const = 0;
-
-  // Opens a file in read or write mode, decided by the read_only parameter.
-  virtual int OpenFile(const char* file_name_utf8,
-                       bool read_only,
-                       bool loop = false,
-                       bool text = false) = 0;
-
-  // Initializes the wrapper from an existing handle. |read_only| must match in
-  // the mode the file was opened in. If |manage_file| is true, the wrapper
-  // takes ownership of |handle| and closes it in CloseFile().
-  virtual int OpenFromFileHandle(FILE* handle,
-                                 bool manage_file,
-                                 bool read_only,
-                                 bool loop = false) = 0;
-
-  virtual int CloseFile() = 0;
-
-  // Limits the file size to |bytes|. Writing will fail after the cap
-  // is hit. Pass zero to use an unlimited size.
-  virtual int SetMaxFileSize(size_t bytes)  = 0;
-
-  // Flush any pending writes.
-  virtual int Flush() = 0;
-
-  // Returns the opened file's name in |file_name_utf8|. Provide the size of
-  // the buffer in bytes in |size|. The name will be truncated if |size| is
-  // too small.
-  virtual int FileName(char* file_name_utf8,
-                       size_t size) const = 0;
-
-  // Write |format| to the opened file. Arguments are taken in the same manner
-  // as printf. That is, supply a format string containing text and
-  // specifiers. Returns the number of characters written or -1 on error.
-  virtual int WriteText(const char* format, ...) = 0;
-
-  // Inherited from both Instream and OutStream.
-  // Rewinds the file to the start. Only available when OpenFile() has been
-  // called with |loop| == true or |readOnly| == true.
-  // virtual int Rewind() = 0;
-  int Rewind() override;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_FILE_WRAPPER_H_