| 1 | //===------------- Windows implementation of IO utils -----------*- C++ -*-===// |
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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 "io.h" |
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| 10 | #include "src/__support/macros/config.h" |
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| 11 | |
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| 12 | // On Windows we cannot make direct syscalls since Microsoft changes system call |
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| 13 | // IDs periodically. We must rely on functions exported from ntdll.dll or |
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| 14 | // kernel32.dll to invoke system service procedures. |
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| 15 | #define WIN32_LEAN_AND_MEAN |
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| 16 | #include <Windows.h> |
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| 17 | |
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| 18 | namespace LIBC_NAMESPACE_DECL { |
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| 19 | |
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| 20 | void write_to_stderr(cpp::string_view msg) { |
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| 21 | ::HANDLE stream = ::GetStdHandle(STD_ERROR_HANDLE); |
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| 22 | ::WriteFile(stream, msg.data(), msg.size(), nullptr, nullptr); |
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| 23 | } |
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| 24 | |
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| 25 | } // namespace LIBC_NAMESPACE_DECL |
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| 26 | |
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