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- // 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_FILE_SYSTEM_ASYNC_FILE_UTIL_ADAPTER_H_
- #define STORAGE_BROWSER_FILE_SYSTEM_ASYNC_FILE_UTIL_ADAPTER_H_
- #include <stdint.h>
- #include <memory>
- #include "base/component_export.h"
- #include "base/memory/ptr_util.h"
- #include "storage/browser/file_system/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 COMPONENT_EXPORT(STORAGE_BROWSER) AsyncFileUtilAdapter
- : public AsyncFileUtil {
- public:
- explicit AsyncFileUtilAdapter(
- std::unique_ptr<FileSystemFileUtil> sync_file_util);
- AsyncFileUtilAdapter(const AsyncFileUtilAdapter&) = delete;
- AsyncFileUtilAdapter& operator=(const AsyncFileUtilAdapter&) = delete;
- ~AsyncFileUtilAdapter() override;
- FileSystemFileUtil* sync_file_util() { return sync_file_util_.get(); }
- // AsyncFileUtil overrides.
- void CreateOrOpen(std::unique_ptr<FileSystemOperationContext> context,
- const FileSystemURL& url,
- uint32_t 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,
- CopyOrMoveOptionSet options,
- CopyFileProgressCallback progress_callback,
- StatusCallback callback) override;
- void MoveFileLocal(std::unique_ptr<FileSystemOperationContext> context,
- const FileSystemURL& src_url,
- const FileSystemURL& dest_url,
- CopyOrMoveOptionSet options,
- 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_;
- };
- } // namespace storage
- #endif // STORAGE_BROWSER_FILE_SYSTEM_ASYNC_FILE_UTIL_ADAPTER_H_
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