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52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
/*
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* Copyright (c) 2023, Liav A. <liavalb@hotmail.co.il>
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* Copyright (c) 2023, Cameron Youell <cameronyouell@gmail.com>
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* Copyright (c) 2024, stasoid <stasoid@yahoo.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Error.h>
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#ifdef AK_OS_WINDOWS
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# include <AK/ByteString.h>
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# include <AK/HashMap.h>
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# include <windows.h>
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#endif
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namespace AK {
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Error Error::from_string_view_or_print_error_and_return_errno(StringView string_literal, [[maybe_unused]] int code)
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{
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return Error::from_string_view(string_literal);
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}
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#ifdef AK_OS_WINDOWS
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Error Error::from_windows_error(DWORD code)
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{
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static HashMap<DWORD, ByteString> windows_errors;
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auto string = windows_errors.get(code);
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if (string.has_value()) {
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return Error::from_string_view(string->view());
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} else {
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char* message = nullptr;
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auto size = FormatMessageA(
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FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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nullptr,
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code,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPSTR)&message,
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0,
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nullptr);
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if (size == 0)
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return Error::from_string_view_or_print_error_and_return_errno("Unknown error"sv, code);
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windows_errors.set(code, { message, size });
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LocalFree(message);
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return from_windows_error(code);
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}
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}
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#endif
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}
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