| // Copyright 2021 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // GEN_BUILD:CONDITION(tint_build_is_win) |
| |
| #include "src/tint/utils/file/tmpfile.h" |
| |
| #include <stdio.h> |
| #include <cstdio> |
| |
| namespace tint { |
| |
| namespace { |
| |
| std::string TmpFilePath(const std::string& ext) { |
| char name[L_tmpnam]; |
| // As we're adding an extension, to ensure the file is really unique, try |
| // creating it, failing if it already exists. |
| while (tmpnam_s(name, L_tmpnam - 1) == 0) { |
| std::string name_with_ext = std::string(name) + ext; |
| FILE* f = nullptr; |
| // The "x" arg forces the function to fail if the file already exists. |
| fopen_s(&f, name_with_ext.c_str(), "wbx"); |
| if (f) { |
| fclose(f); |
| return name_with_ext; |
| } |
| } |
| return {}; |
| } |
| |
| } // namespace |
| |
| TmpFile::TmpFile(std::string ext) : path_(TmpFilePath(ext)) {} |
| |
| TmpFile::~TmpFile() { |
| if (!path_.empty()) { |
| remove(path_.c_str()); |
| } |
| } |
| |
| bool TmpFile::Append(const void* data, size_t size) const { |
| FILE* file = nullptr; |
| if (fopen_s(&file, path_.c_str(), "ab") != 0) { |
| return false; |
| } |
| fwrite(data, size, 1, file); |
| fclose(file); |
| return true; |
| } |
| |
| } // namespace tint |