On Wed, 4 Feb 2026 at 22:37, Brian Inglis via Cygwin <[email protected]> wrote: > > On 2026-02-04 14:17, Dan Shelton via Cygwin wrote: > > Why does Cygwin always use absolute paths instead of > > OBJECT_ATTRIBUTES.RootDirectory in NtOpenFile(), > > NtSetInformationFile() for rename and hardlinks > > > > This slows down Cygwin path lookups a lot, and with lots of path > > elements each lookup with a relative RootDirectory might be a lot > > faster, e.g. for openat(), linkat(), renameat(). > > Because volunteers' spare time is limited, and performance is good enough for > those who might do the work:
Please do not slap me. That hurt. My question is about whether there are any technical issues which prevent OBJECT_ATTRIBUTES.RootDirectory from being used in Cygwin for openat(). 2nd question: Is OBJECT_ATTRIBUTES.RootDirectory really a root, and you cannot do cd ..? Dan -- Dan Shelton - Cluster Specialist Win/Lin/Bsd -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
