| // Copyright 2016 The Fuchsia 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 PERIDOT_BIN_LEDGER_STORAGE_PUBLIC_PAGE_SYNC_DELEGATE_H_ |
| #define PERIDOT_BIN_LEDGER_STORAGE_PUBLIC_PAGE_SYNC_DELEGATE_H_ |
| |
| #include <functional> |
| |
| #include <lib/fit/function.h> |
| #include <lib/fxl/macros.h> |
| |
| #include "peridot/bin/ledger/storage/public/data_source.h" |
| #include "peridot/bin/ledger/storage/public/types.h" |
| |
| namespace storage { |
| |
| // Delegate interface for PageStorage responsible for retrieving on-demand |
| // storage objects from the cloud. |
| class PageSyncDelegate { |
| public: |
| PageSyncDelegate() {} |
| virtual ~PageSyncDelegate() {} |
| |
| // Retrieves the object of the given id from the cloud. |
| virtual void GetObject( |
| ObjectIdentifier object_identifier, |
| fit::function<void(Status status, ChangeSource source, |
| IsObjectSynced is_object_synced, |
| std::unique_ptr<DataSource::DataChunk>)> |
| callback) = 0; |
| |
| private: |
| FXL_DISALLOW_COPY_AND_ASSIGN(PageSyncDelegate); |
| }; |
| |
| } // namespace storage |
| |
| #endif // PERIDOT_BIN_LEDGER_STORAGE_PUBLIC_PAGE_SYNC_DELEGATE_H_ |