| 1 | |
| 2 | /* |
| 3 | * Copyright (c) 2022 Francis Deslauriers <francis.deslauriers@efficios.com> |
| 4 | * |
| 5 | * SPDX-License-Identifier: MIT |
| 6 | */ |
| 7 | #include <fstream> |
| 8 | |
| 9 | #include "exc.hpp" |
| 10 | #include "file-utils.hpp" |
| 11 | |
| 12 | namespace bt2c { |
| 13 | |
| 14 | std::vector<std::uint8_t> dataFromFile(const char * const filePath) |
| 15 | { |
| 16 | /* |
| 17 | * Open a file stream and seek to the end of the stream to compute the size |
| 18 | * of the buffer required. |
| 19 | */ |
| 20 | std::ifstream file {filePath, std::ios::binary | std::ios::ate}; |
| 21 | |
| 22 | if (!file) { |
| 23 | throw NoSuchFileOrDirectoryError {}; |
| 24 | } |
| 25 | |
| 26 | const auto size = file.tellg(); |
| 27 | std::vector<uint8_t> buffer(static_cast<std::size_t>(size)); |
| 28 | |
| 29 | /* |
| 30 | * Seek the reading head back at the beginning of the stream to actually |
| 31 | * read the content. |
| 32 | */ |
| 33 | file.seekg(0, std::ios::beg); |
| 34 | file.read(reinterpret_cast<char *>(buffer.data()), size); |
| 35 | return buffer; |
| 36 | } |
| 37 | |
| 38 | } /* namespace bt2c */ |