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62 lines
1.9 KiB
C++
62 lines
1.9 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) 2024-2025, 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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// Comment to prevent clang-format from including windows.h too late
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# include <winbase.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(u64 code)
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{
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thread_local HashMap<u64, ByteString> s_windows_errors;
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auto string = s_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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char* message = nullptr;
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auto size = FormatMessage(
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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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static_cast<DWORD>(code),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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reinterpret_cast<LPSTR>(&message),
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0,
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nullptr);
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if (size == 0) {
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static char buffer[128];
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(void)snprintf(buffer, _countof(buffer), "Error 0x%08lX while getting text of error 0x%08llX", GetLastError(), code);
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return Error::from_string_view({ buffer, _countof(buffer) });
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}
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auto& string_in_map = s_windows_errors.ensure(code, [message, size] { return ByteString { message, size }; });
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LocalFree(message);
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return Error::from_string_view(string_in_map.view());
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}
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// This can be used both for generic Windows errors and for winsock errors because WSAGetLastError is forwarded to GetLastError.
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Error Error::from_windows_error()
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{
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return from_windows_error(GetLastError());
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}
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#endif
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}
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