129 lines
4.9 KiB
C++
129 lines
4.9 KiB
C++
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_BASE_UNIXFILESYSTEM_H_
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#define WEBRTC_BASE_UNIXFILESYSTEM_H_
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#include <sys/types.h>
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#include "webrtc/base/fileutils.h"
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namespace rtc {
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class UnixFilesystem : public FilesystemInterface {
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public:
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UnixFilesystem();
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~UnixFilesystem() override;
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#if defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS)
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// Android does not have a native code API to fetch the app data or temp
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// folders. That needs to be passed into this class from Java. Similarly, iOS
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// only supports an Objective-C API for fetching the folder locations, so that
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// needs to be passed in here from Objective-C. Or at least that used to be
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// the case; now the ctor will do the work if necessary and possible.
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// TODO(fischman): add an Android version that uses JNI and drop the
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// SetApp*Folder() APIs once external users stop using them.
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static void SetAppDataFolder(const std::string& folder);
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static void SetAppTempFolder(const std::string& folder);
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#endif
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// Opens a file. Returns an open StreamInterface if function succeeds.
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// Otherwise, returns NULL.
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FileStream* OpenFile(const Pathname& filename,
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const std::string& mode) override;
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// Atomically creates an empty file accessible only to the current user if one
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// does not already exist at the given path, otherwise fails.
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bool CreatePrivateFile(const Pathname& filename) override;
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// This will attempt to delete the file located at filename.
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// It will fail with VERIY if you pass it a non-existant file, or a directory.
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bool DeleteFile(const Pathname& filename) override;
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// This will attempt to delete the folder located at 'folder'
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// It ASSERTs and returns false if you pass it a non-existant folder or a
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// plain file.
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bool DeleteEmptyFolder(const Pathname& folder) override;
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// Creates a directory. This will call itself recursively to create /foo/bar
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// even if /foo does not exist. All created directories are created with the
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// given mode.
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// Returns TRUE if function succeeds
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virtual bool CreateFolder(const Pathname &pathname, mode_t mode);
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// As above, with mode = 0755.
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bool CreateFolder(const Pathname& pathname) override;
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// This moves a file from old_path to new_path, where "file" can be a plain
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// file or directory, which will be moved recursively.
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// Returns true if function succeeds.
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bool MoveFile(const Pathname& old_path, const Pathname& new_path) override;
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bool MoveFolder(const Pathname& old_path, const Pathname& new_path) override;
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// This copies a file from old_path to _new_path where "file" can be a plain
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// file or directory, which will be copied recursively.
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// Returns true if function succeeds
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bool CopyFile(const Pathname& old_path, const Pathname& new_path) override;
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// Returns true if a pathname is a directory
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bool IsFolder(const Pathname& pathname) override;
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// Returns true if pathname represents a temporary location on the system.
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bool IsTemporaryPath(const Pathname& pathname) override;
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// Returns true of pathname represents an existing file
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bool IsFile(const Pathname& pathname) override;
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// Returns true if pathname refers to no filesystem object, every parent
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// directory either exists, or is also absent.
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bool IsAbsent(const Pathname& pathname) override;
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std::string TempFilename(const Pathname& dir,
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const std::string& prefix) override;
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// A folder appropriate for storing temporary files (Contents are
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// automatically deleted when the program exists)
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bool GetTemporaryFolder(Pathname& path,
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bool create,
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const std::string* append) override;
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bool GetFileSize(const Pathname& path, size_t* size) override;
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bool GetFileTime(const Pathname& path,
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FileTimeType which,
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time_t* time) override;
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// Returns the path to the running application.
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bool GetAppPathname(Pathname* path) override;
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bool GetAppDataFolder(Pathname* path, bool per_user) override;
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// Get a temporary folder that is unique to the current user and application.
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bool GetAppTempFolder(Pathname* path) override;
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bool GetDiskFreeSpace(const Pathname& path, int64_t* freebytes) override;
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// Returns the absolute path of the current directory.
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Pathname GetCurrentDirectory() override;
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private:
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#if defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS)
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static char* provided_app_data_folder_;
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static char* provided_app_temp_folder_;
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#else
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static char* app_temp_path_;
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#endif
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static char* CopyString(const std::string& str);
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};
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} // namespace rtc
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#endif // WEBRTC_BASE_UNIXFILESYSTEM_H_
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