3 * Copyright 2004--2006, Google Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef TALK_BASE_UNIXFILESYSTEM_H_
29 #define TALK_BASE_UNIXFILESYSTEM_H_
31 #include <sys/types.h>
33 #include "talk/base/fileutils.h"
37 class UnixFilesystem : public FilesystemInterface {
40 #if defined(ANDROID) || defined(IOS)
41 // Android does not have a native code API to fetch the app data or temp
42 // folders. That needs to be passed into this class from Java. Similarly, iOS
43 // only supports an Objective-C API for fetching the folder locations, so that
44 // needs to be passed in here from Objective-C.
46 static void SetAppDataFolder(const std::string& folder);
47 static void SetAppTempFolder(const std::string& folder);
50 // Opens a file. Returns an open StreamInterface if function succeeds.
51 // Otherwise, returns NULL.
52 virtual FileStream *OpenFile(const Pathname &filename,
53 const std::string &mode);
55 // Atomically creates an empty file accessible only to the current user if one
56 // does not already exist at the given path, otherwise fails.
57 virtual bool CreatePrivateFile(const Pathname &filename);
59 // This will attempt to delete the file located at filename.
60 // It will fail with VERIY if you pass it a non-existant file, or a directory.
61 virtual bool DeleteFile(const Pathname &filename);
63 // This will attempt to delete the folder located at 'folder'
64 // It ASSERTs and returns false if you pass it a non-existant folder or a
66 virtual bool DeleteEmptyFolder(const Pathname &folder);
68 // Creates a directory. This will call itself recursively to create /foo/bar
69 // even if /foo does not exist. All created directories are created with the
71 // Returns TRUE if function succeeds
72 virtual bool CreateFolder(const Pathname &pathname, mode_t mode);
74 // As above, with mode = 0755.
75 virtual bool CreateFolder(const Pathname &pathname);
77 // This moves a file from old_path to new_path, where "file" can be a plain
78 // file or directory, which will be moved recursively.
79 // Returns true if function succeeds.
80 virtual bool MoveFile(const Pathname &old_path, const Pathname &new_path);
81 virtual bool MoveFolder(const Pathname &old_path, const Pathname &new_path);
83 // This copies a file from old_path to _new_path where "file" can be a plain
84 // file or directory, which will be copied recursively.
85 // Returns true if function succeeds
86 virtual bool CopyFile(const Pathname &old_path, const Pathname &new_path);
88 // Returns true if a pathname is a directory
89 virtual bool IsFolder(const Pathname& pathname);
91 // Returns true if pathname represents a temporary location on the system.
92 virtual bool IsTemporaryPath(const Pathname& pathname);
94 // Returns true of pathname represents an existing file
95 virtual bool IsFile(const Pathname& pathname);
97 // Returns true if pathname refers to no filesystem object, every parent
98 // directory either exists, or is also absent.
99 virtual bool IsAbsent(const Pathname& pathname);
101 virtual std::string TempFilename(const Pathname &dir,
102 const std::string &prefix);
104 // A folder appropriate for storing temporary files (Contents are
105 // automatically deleted when the program exists)
106 virtual bool GetTemporaryFolder(Pathname &path, bool create,
107 const std::string *append);
109 virtual bool GetFileSize(const Pathname& path, size_t* size);
110 virtual bool GetFileTime(const Pathname& path, FileTimeType which,
113 // Returns the path to the running application.
114 virtual bool GetAppPathname(Pathname* path);
116 virtual bool GetAppDataFolder(Pathname* path, bool per_user);
118 // Get a temporary folder that is unique to the current user and application.
119 virtual bool GetAppTempFolder(Pathname* path);
121 virtual bool GetDiskFreeSpace(const Pathname& path, int64 *freebytes);
123 // Returns the absolute path of the current directory.
124 virtual Pathname GetCurrentDirectory();
127 #if defined(ANDROID) || defined(IOS)
128 static char* provided_app_data_folder_;
129 static char* provided_app_temp_folder_;
131 static char* app_temp_path_;
134 static char* CopyString(const std::string& str);
137 } // namespace talk_base
139 #endif // TALK_BASE_UNIXFILESYSTEM_H_