| // Copyright 2020 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #pragma once |
| |
| #include "base/Optional.h" |
| |
| #include <string> |
| |
| namespace android { |
| |
| // Reads from |fd| into |file_contents| |
| // Returns false if something went wrong |
| bool readFileIntoString(int fd, std::string* file_contents); |
| |
| // Reads |name| file |
| base::Optional<std::string> readFileIntoString(const std::string& filename); |
| |
| // Writes |file_contents| to |fd| |
| // Returns false if something went wrong |
| bool writeStringToFile(int fd, const std::string& file_contents); |
| |
| // Sets the file size to |size|, could either extend or truncate it. |
| bool setFileSize(int fd, int64_t size); |
| |
| } // namespace android |
