Re: Locking
Re: Locking
- Subject: Re: Locking
- From: Wade Tregaskis <email@hidden>
- Date: Wed, 16 Jun 2004 20:44:39 +1000
2. locked the file with FInder - can NOT be deleted by NSFileManager.
2a tried rm. It asked me "override uchg", I answered "y", it replied
"Operation not permitted". So why ask in the first place? But at least
consistent.
(The file now has: "NSFileImmutable=1")
I'm not sure of the mechanics of it, but on the face of it this is a
bug - in my experience only the root user can overwrite the permissions
(and even then only sometimes); a non-root user should never be asked.
But now the final question: how can I find out the app, which has the
file still open?
Which probably amounts to the question: has the filesystem only a bit
"file open" or a list of int flags "file open by pid 12345" , "file
open by pid 4321", ... ?
Under Classic MacOS you could find out which app had exclusive access
to a file, although I don't know how; I only know that many
applications (including the Finder) displayed this information at
various times. It was particularly handy when you had a removable
volume mounted and wanted to know why it can't be unmounted... under OS
X it just throws up some useless generic error message.
Although usually it's just Terminal, which for some reason prevents
most (all?) removable volumes being removed while it's open. Even disk
images and the like. Weird.
Wade Tregaskis (aim: wadetregaskis)
-- Sed quis custodiet ipsos custodes?
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| References: | |
| | >Locking (From: "Gerriet M. Denkmann" <email@hidden>) |
| | >Re: Locking (From: "Gerriet M. Denkmann" <email@hidden>) |