| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include <__config> |
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| 10 | |
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| 11 | #include <cstdlib> |
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| 12 | #include <print> |
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| 13 | |
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| 14 | #include <__system_error/system_error.h> |
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| 15 | |
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| 16 | #include "filesystem/error.h" |
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| 17 | |
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| 18 | #if defined(_LIBCPP_WIN32API) |
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| 19 | # define WIN32_LEAN_AND_MEAN |
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| 20 | # define NOMINMAX |
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| 21 | # include <io.h> |
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| 22 | # include <windows.h> |
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| 23 | #elif __has_include(<unistd.h>) |
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| 24 | # include <unistd.h> |
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| 25 | #endif |
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| 26 | |
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| 27 | _LIBCPP_BEGIN_NAMESPACE_STD |
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| 28 | |
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| 29 | #if defined(_LIBCPP_WIN32API) |
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| 30 | |
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| 31 | _LIBCPP_EXPORTED_FROM_ABI bool __is_windows_terminal(FILE* __stream) { |
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| 32 | // Note the Standard does this in one call, but it's unclear whether |
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| 33 | // an invalid handle is allowed when calling GetConsoleMode. |
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| 34 | // |
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| 35 | // https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/get-osfhandle?view=msvc-170 |
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| 36 | // https://learn.microsoft.com/en-us/windows/console/getconsolemode |
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| 37 | intptr_t __handle = _get_osfhandle(fileno(__stream)); |
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| 38 | if (__handle == -1) |
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| 39 | return false; |
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| 40 | |
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| 41 | unsigned long __mode; |
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| 42 | return GetConsoleMode(reinterpret_cast<void*>(__handle), &__mode); |
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| 43 | } |
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| 44 | |
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| 45 | # ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS |
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| 46 | _LIBCPP_EXPORTED_FROM_ABI void |
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| 47 | __write_to_windows_console([[maybe_unused]] FILE* __stream, [[maybe_unused]] wstring_view __view) { |
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| 48 | // https://learn.microsoft.com/en-us/windows/console/writeconsole |
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| 49 | if (WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fileno(__stream))), // clang-format aid |
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| 50 | __view.data(), |
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| 51 | __view.size(), |
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| 52 | nullptr, |
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| 53 | nullptr) == 0) { |
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| 54 | __throw_system_error(filesystem::detail::make_windows_error(GetLastError()), "failed to write formatted output" ); |
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| 55 | } |
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| 56 | } |
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| 57 | # endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS |
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| 58 | |
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| 59 | #elif __has_include(<unistd.h>) // !_LIBCPP_WIN32API |
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| 60 | |
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| 61 | _LIBCPP_EXPORTED_FROM_ABI bool __is_posix_terminal(FILE* __stream) { return isatty(fileno(__stream)); } |
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| 62 | #endif |
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| 63 | |
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| 64 | _LIBCPP_END_NAMESPACE_STD |
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| 65 | |
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