| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef STORAGE_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ |
| #define STORAGE_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/ptr_util.h" |
| #include "storage/browser/fileapi/async_file_util.h" |
| |
| namespace storage { |
| |
| class FileSystemFileUtil; |
| |
| // An adapter class for FileSystemFileUtil classes to provide asynchronous |
| // interface. |
| // |
| // A filesystem can do either: |
| // - implement a synchronous version of FileUtil by extending |
| // FileSystemFileUtil and atach it to this adapter, or |
| // - directly implement AsyncFileUtil. |
| // |
| // This instance (as thus this->sync_file_util_) is guaranteed to be alive |
| // as far as FileSystemOperationContext given to each operation is kept alive. |
| class STORAGE_EXPORT AsyncFileUtilAdapter : public AsyncFileUtil { |
| public: |
| // Creates a new AsyncFileUtil for |sync_file_util|. This takes the |
| // ownership of |sync_file_util|. (This doesn't take std::unique_ptr<> just |
| // to save extra base::WrapUnique; in all use cases a new fresh FileUtil is |
| // created only for this adapter.) |
| explicit AsyncFileUtilAdapter(FileSystemFileUtil* sync_file_util); |
| |
| ~AsyncFileUtilAdapter() override; |
| |
| FileSystemFileUtil* sync_file_util() { |
| return sync_file_util_.get(); |
| } |
| |
| // AsyncFileUtil overrides. |
| void CreateOrOpen(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| int file_flags, |
| CreateOrOpenCallback callback) override; |
| void EnsureFileExists(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| EnsureFileExistsCallback callback) override; |
| void CreateDirectory(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| bool exclusive, |
| bool recursive, |
| StatusCallback callback) override; |
| void GetFileInfo(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| int /* fields */, |
| GetFileInfoCallback callback) override; |
| void ReadDirectory(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| ReadDirectoryCallback callback) override; |
| void Touch(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| const base::Time& last_access_time, |
| const base::Time& last_modified_time, |
| StatusCallback callback) override; |
| void Truncate(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| int64_t length, |
| StatusCallback callback) override; |
| void CopyFileLocal(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& src_url, |
| const FileSystemURL& dest_url, |
| CopyOrMoveOption option, |
| CopyFileProgressCallback progress_callback, |
| StatusCallback callback) override; |
| void MoveFileLocal(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& src_url, |
| const FileSystemURL& dest_url, |
| CopyOrMoveOption option, |
| StatusCallback callback) override; |
| void CopyInForeignFile(std::unique_ptr<FileSystemOperationContext> context, |
| const base::FilePath& src_file_path, |
| const FileSystemURL& dest_url, |
| StatusCallback callback) override; |
| void DeleteFile(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| StatusCallback callback) override; |
| void DeleteDirectory(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| StatusCallback callback) override; |
| void DeleteRecursively(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| StatusCallback callback) override; |
| void CreateSnapshotFile(std::unique_ptr<FileSystemOperationContext> context, |
| const FileSystemURL& url, |
| CreateSnapshotFileCallback callback) override; |
| |
| private: |
| std::unique_ptr<FileSystemFileUtil> sync_file_util_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AsyncFileUtilAdapter); |
| }; |
| |
| } // namespace storage |
| |
| #endif // STORAGE_BROWSER_FILEAPI_ASYNC_FILE_UTIL_ADAPTER_H_ |