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bunbeans2-archandClaude Opus 5.5
6878d1be40
On Windows, std::tmpfile() returns NULL with errno 22 when %TEMP% contains a character outside the ANSI code page, where GetTempPathA returns '?' in its place. Fifteen tests that capture output through it aborted. TemporaryFile::Open() opens a unique delete-on-close file under temp_directory_path() with _wfopen; other hosts keep std::tmpfile(). Part of #13083 Co-Authored-By: Claude Opus 5.5 <[email protected]>
39 lines
1003 B
C++
39 lines
1003 B
C++
#ifndef CORE_LIBS_TESTS_TEMPORARYFILE_HPP
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#define CORE_LIBS_TESTS_TEMPORARYFILE_HPP
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#include <cstdio>
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#ifdef _WIN32
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#include <atomic>
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#include <cerrno>
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#include <chrono>
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#include <filesystem>
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#include <process.h>
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#include <string>
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#include <system_error>
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#endif
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namespace TemporaryFile {
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inline std::FILE* Open() {
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#ifdef _WIN32
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static std::atomic<unsigned> serial{0};
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std::error_code error;
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const auto directory = std::filesystem::temp_directory_path(error);
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if (error) return nullptr;
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for (int attempt = 0; attempt < 100; ++attempt) {
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const auto tick = std::chrono::steady_clock::now().time_since_epoch().count();
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const auto name = directory / ("anyps5-test-" + std::to_string(_getpid()) + "-" + std::to_string(tick) + "-" + std::to_string(serial++) + ".tmp");
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if (std::FILE* file = _wfopen(name.c_str(), L"w+bxD")) return file;
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if (errno != EEXIST) return nullptr;
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}
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return nullptr;
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#else
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return std::tmpfile();
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#endif
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}
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}
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#endif
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