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