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Article #487Re: Call for (mostly)-baked ideas: $QIO replacement?
From: SYSTEM SUPPORT
Date: Mon, 21 Dec 1992 18:58
Date: Mon, 21 Dec 1992 18:58
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>> Subject: Call for partly-baked ideas: $QIO replacement? >> >> Are you happy with the $QIO system service? If you were building a new O/S >> from scratch, would you make the "basic I/O call" that's available for >> non-privileged programs look like $QIO, or like something else? If the latter, >> what? If you could specify a new I/O interface to supplement $QIO in VMS, what >> would it look like? >> I thought I heard a collective "Hmmm..." when this was posted :-) I've been tinkering with Security Enhanced VMS (SEVMS) which follows a write-up-read-down scheme. The bummer of it all is that VMS needs to do a read to see if the file exists before it'll write a new file. Yes, you can write custom procedures to get around this, but it would be nice if the $QIO routines were already "trusted" to handle this for the unpriv'ed user. Overall, I've been happy with the $QIO service. I'm interested to hear what your ideas are. How about "broadcasting" the $QIO to a set of CPU's and the first CPU to complete the task "wins". ******************************************************************************* ** Jim Matthews ** ** Naval Surface Warfare Center Dahlgren Division ** ** Code N23A ** ** Dahlgren, VA 22448-5000 ** ** Internet: system_jm@unode2.nswc.navy.mil ** *******************************************************************************
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arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!usc!news.service.uci.edu!unogate!mvb.saic.com!macro32Show Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!zaphod.mps.ohio-state.edu!usc!news.service.uci.edu!unogate!mvb.saic.com!macro32 From: "SYSTEM SUPPORT" <SYSTEM_JM@unode2.nswc.navy.mil> Newsgroups: vmsnet.internals Subject: Re: Call for (mostly)-baked ideas: $QIO replacement? Message-ID: <9212211901.AA30748@cunixf.cc.columbia.edu> Date: 21 Dec 92 13:58:00 EST Organization: Macro32<==>Vmsnet.Internals Gateway X-Gateway-Source-Info: Mailing List Lines: 30