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LibCore: Add Windows version of DirIterator

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Co-authored-by: stasoid <stasoid@yahoo.com>
This commit is contained in:
Cameron Youell 2023-08-30 17:19:29 +10:00 • committed by Andrew Kaster
commit 94601e1ffd
Notes: github-actions[bot] 2024-10-20 00:15:43 +00:00
8 changed files with 238 additions and 21 deletions
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36
AK/Error.cpp
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@ -1,10 +1,17 @@
/*
* Copyright (c) 2023, Liav A. <liavalb@hotmail.co.il>
* Copyright (c) 2023, Cameron Youell <cameronyouell@gmail.com>
* Copyright (c) 2024, stasoid <stasoid@yahoo.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Error.h>
#ifdef AK_OS_WINDOWS
# include <AK/ByteString.h>
# include <AK/HashMap.h>
# include <windows.h>
#endif
namespace AK {
@ -13,4 +20,33 @@ Error Error::from_string_view_or_print_error_and_return_errno(StringView string_
return Error::from_string_view(string_literal);
}
#ifdef AK_OS_WINDOWS
Error Error::from_windows_error(DWORD code)
{
static HashMap<DWORD, ByteString> windows_errors;
auto string = windows_errors.get(code);
if (string.has_value()) {
return Error::from_string_view(string->view());
} else {
char* message = nullptr;
auto size = FormatMessageA(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr,
code,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPSTR)&message,
0,
nullptr);
if (size == 0)
return Error::from_string_view_or_print_error_and_return_errno("Unknown error"sv, code);
windows_errors.set(code, { message, size });
LocalFree(message);
return from_windows_error(code);
}
}
#endif
}