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