On Thu, 5 Aug 2004, Justin Gombos wrote:
* R A Lichtensteiger <rali(_at_)tifosi(_dot_)com> [2004-08-05 16:33]:
Someone mentioned OpenVMS.. but I'm not familiar w/ that OS. Is it
anything like VAX?
That would be me. I did not notice that the mail headers
had you as the author and no reply-to line so replies would
automagically go to the list.
The short answer is "yes". VAX is the name of the original
hardware on which VMS was developed and sold, but has been
out of manufacture for a few years now. VMS is still around
running on DEC Alpha and Intel Itanium machines.
File and record locking is part of RMS (Record Management
Services) which is the interface to the file system. It
will allow you to specify exclusive write access to the
file or records in the file when the file is openned. If
another process tries to open the file for exclusive
write access, it will get back an error and it is up to
that process to decide to abort or wait and retry. The
upshot being that the file system itself maintains the
lock status, not the presence/absence of an auxilliary
lock file.
- h
--
hsiegel~at~pobox~dot~com <*> Netcom Class of '93, RIP Netcom!
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