| // Copyright 2020 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 DIAGNOSTICS_CROS_HEALTHD_FETCHERS_STORAGE_PLATFORM_H_ |
| #define DIAGNOSTICS_CROS_HEALTHD_FETCHERS_STORAGE_PLATFORM_H_ |
| |
| #include <cstdint> |
| #include <string> |
| |
| #include <base/files/file_path.h> |
| |
| #include "diagnostics/common/statusor.h" |
| |
| namespace diagnostics { |
| |
| // Platform wraps low-level enquiries to the system in order to be able to mock |
| // or fake those calls in tests. |
| class Platform { |
| public: |
| Platform() = default; |
| Platform(const Platform&) = delete; |
| Platform(Platform&&) = delete; |
| Platform& operator=(const Platform&) = delete; |
| Platform& operator=(Platform&&) = delete; |
| virtual ~Platform() = default; |
| |
| // Returns physical device name underlying the root partition. The result is |
| // only the node name, not the full path, and is assumed to lie in '/dev/'. |
| virtual std::string GetRootDeviceName() const; |
| // Returns size of the block device in bytes. |
| virtual StatusOr<uint64_t> GetDeviceSizeBytes( |
| const base::FilePath& dev_path) const; |
| // Returns size of a block of the block device in bytes. |
| virtual StatusOr<uint64_t> GetDeviceBlockSizeBytes( |
| const base::FilePath& dev_path) const; |
| }; |
| |
| } // namespace diagnostics |
| |
| #endif // DIAGNOSTICS_CROS_HEALTHD_FETCHERS_STORAGE_PLATFORM_H_ |