| // Copyright 2017 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 THD_MECHANISM_FILE_WRITE_MECHANISM_H_ |
| #define THD_MECHANISM_FILE_WRITE_MECHANISM_H_ |
| |
| #include "thd/mechanism/mechanism.h" |
| |
| #include <cstdint> |
| #include <string> |
| |
| #include <base/files/file_path.h> |
| #include <base/macros.h> |
| |
| namespace thd { |
| |
| // Mechanism to write integers into files. Used to control sysfs |
| // accessible knobs. |
| class FileWriteMechanism : public Mechanism { |
| public: |
| FileWriteMechanism(int64_t max_level, |
| int64_t min_level, |
| int64_t default_level, |
| const std::string& name, |
| const base::FilePath& path); |
| FileWriteMechanism(const FileWriteMechanism&) = delete; |
| FileWriteMechanism& operator=(const FileWriteMechanism&) = delete; |
| |
| ~FileWriteMechanism() override; |
| |
| // Mechanism: |
| bool SetLevel(int64_t level) override; |
| int64_t GetMaxLevel() override; |
| int64_t GetMinLevel() override; |
| int64_t GetDefaultLevel() override; |
| |
| private: |
| const int64_t max_level_; |
| const int64_t min_level_; |
| const int64_t default_level_; |
| const std::string name_; |
| const base::FilePath path_; |
| }; |
| |
| } // namespace thd |
| |
| #endif // THD_MECHANISM_FILE_WRITE_MECHANISM_H_ |