[Info-vax] Volatile, was: Re: yet another sys$qiow question

[VAXman- at SendSpamHere.ORG]

In article <hA6eh4G0l$As at eisner.encompasserve.org>, koehler at eisner.nospam.decuserve.org (Bob Koehler) writes:
>In article <mrprkt$utq$2 at Iltempo.Update.UU.SE>, Johnny Billquist <bqt at softjar.se> writes:
>> 
>> Checking the event flags is no more valid than checking the IOSB, and is 
>> way costlier.
>
>   Yes, but you can wait on various combinations of event flags, which
>   can be extreemly cheap compared to a CPU bound loop.
>
>   There's no wait to wait on an IOSB.

???

$SYNCH will put the process into LEF whether you use a valid event flag or
EFN$C_ENF


>   And if you add a something like a timed delay in your loop, you
>   are waiting on an event flag.

???

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