| // Copyright 2021 The Fuchsia Authors |
| // Copyright (c) 2008 Travis Geiselbrecht |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <string-file.h> |
| |
| #include <ktl/algorithm.h> |
| #include <ktl/string_view.h> |
| |
| #include <ktl/enforce.h> |
| |
| int StringFile::Write(ktl::string_view str) { |
| // Last element is reserved for '\0' character. |
| if (!buffer_.empty()) { |
| offset_ += str.copy(buffer_.data() + offset_, buffer_.size() - offset_ - 1); |
| } |
| return static_cast<int>(str.size()); |
| } |
| |
| ktl::span<char> StringFile::take() && { |
| if (!buffer_.empty()) { |
| buffer_[offset_] = '\0'; |
| return buffer_.subspan(0, offset_ + 1); |
| } |
| return {}; |
| } |
