On Wed, 5 Nov 2025, Pali Rohár wrote:
On Wednesday 05 November 2025 15:46:09 Martin Storsjö wrote:
On Sat, 1 Nov 2025, Pali Rohár wrote:
FILE_DISPOSITION_INFORMATION_EX is used for issuing POSIX unlink() syscall.
Definitions taken from public header ntddk.h file.
---
mingw-w64-headers/ddk/include/ddk/ntddk.h | 15 +++++++++++++++
mingw-w64-headers/include/winternl.h | 15 +++++++++++++++
2 files changed, 30 insertions(+)
Why should this be added to winternl.h? The public WinSDK doesn't have any
of these declarations in winternl.h - what are you trying to achieve by
exposing things that normally are only available in DDK headers in
winternl.h?
I saw that FILE_DISPOSITION_INFORMATION is available in those two files,
so I added FILE_DISPOSITION_INFORMATION_EX into same files too.
winternl.h contains definitions for userspace ntdll.dll usage and
ntddk.h definition for kernel driver ntoskrnl.exe usage. At least this
is how I understand it.
Sure, but if the public WinSDK doesn't contain things for userspace
ntdll.dll usage in winternl.h, then we shouldn't either. This isn't the
place for going on our own quest to extend the scope for mingw-w64
headers, I would say.
(Do note that normal structs/defines for using these features are available
in winbase.h already, since 763b87505a6bbfda6e5e23f257f308fd92e80f4c.
They are not. In 763b87505a6bbfda6e5e23f257f308fd92e80f4c was added
FILE_DISPOSITION_INFO_EX which is not FILE_DISPOSITION_INFORMATION_EX.
FILE_DISPOSITION_INFO_EX is used by SetFileInformationByHandle +
FileDispositionInfoEx
FILE_DISPOSITION_INFORMATION_EX is used by NtSetInformationFile +
FileDispositionInformationEx
Sure, but I meant to say that it is possible to use this functionality
through the intended user mode APIs.
// Martin
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