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Article #487

Re: Call for (mostly)-baked ideas: $QIO replacement?

#487
From: SYSTEM SUPPORT
Date: Mon, 21 Dec 1992 18:58
29 lines
2100 bytes
>> 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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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
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