[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Questions about OPEN
- To: Charles Hedrick <HEDRICK@RUTGERS.ARPA>
- Subject: Questions about OPEN
- From: Rob MacLachlan <RAM@CMU-CS-C.ARPA>
- Date: Fri, 05 Oct 1984 19:49:00 -0000
- Cc: common-lisp@SU-AI.ARPA, heller%umass-cs.csnet@CSNET-RELAY.ARPA, Moon@SCRC-RIVERSIDE.ARPA
- In-reply-to: Msg of 5 Oct 1984 13:09-EDT from Charles Hedrick <HEDRICK at RUTGERS.ARPA>
You don't seem to follow what Moon and I were saying about
truename (and probe-file) -- in some filesystems it is TOTALLY
IMPOSSIBLE with *any* amount of code to implement the semantics
described in the manual. The usual cause for this is that the version
number is unknown until the stream is closed. A secondary problem is
that in some OS'es, a newly created file does not exist in the
filesystem namespace until it is closed.
In any case, rename-file can only be done on *open* files
according to the CLM. And if you keep the JFN around for every file
stream there has ever been, when are you going to do the RLJFN?
Rob