| // Copyright 2014 The Chromium OS 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 BUFFET_STORAGE_IMPLS_H_ |
| #define BUFFET_STORAGE_IMPLS_H_ |
| |
| #include <base/files/file_util.h> |
| #include <base/macros.h> |
| #include <base/values.h> |
| |
| #include "buffet/storage_interface.h" |
| |
| namespace buffet { |
| |
| // Persists the given Value to an atomically written file. |
| class FileStorage : public StorageInterface { |
| public: |
| explicit FileStorage(const base::FilePath& file_path); |
| virtual ~FileStorage() = default; |
| std::unique_ptr<base::Value> Load() override; |
| bool Save(const base::Value* config) override; |
| |
| private: |
| base::FilePath file_path_; |
| DISALLOW_COPY_AND_ASSIGN(FileStorage); |
| }; |
| |
| // StorageInterface for testing. Just stores the values in memory. |
| class MemStorage : public StorageInterface { |
| public: |
| MemStorage() = default; |
| virtual ~MemStorage() = default; |
| std::unique_ptr<base::Value> Load() override; |
| bool Save(const base::Value* config) override; |
| int save_count() { return save_count_; } |
| void reset_save_count() { save_count_ = 0; } |
| |
| private: |
| int save_count_ = 0; |
| std::unique_ptr<base::Value> cache_; |
| DISALLOW_COPY_AND_ASSIGN(MemStorage); |
| }; |
| |
| } // namespace buffet |
| |
| #endif // BUFFET_STORAGE_IMPLS_H_ |