On Fri, 27 Apr 2001 16:18:35 -0700, Gavin Scott <[log in to unmask]> wrote:

>Tom after me:
>> >One question would be why are you using soft interrupts in the
>> first place rather than just having one IOWAIT or HPSELECT that
>> waits on all your input sources at the same time so that
>> interrupts aren't really needed.
>>
>> The reason was inferred by the closing BTW comment: this program handles
>> both (berkeley) socket I/O and message file I/O.
>
>If you replaced the Berkeley sockets interface with NetIPC, then you could
>use one IOWAIT for all your asynchronous I/O.

I'll have to file this "for future reference" -- it's a bit late in this
project to switch now :)  Seriously, though, I was unaware that NetIPC
would bring the sockets into the "IOWAIT" call [I suppose HP should have
implemented sockets this way then cleverly changed the "select()" call into
a wrapper for IOWAIT and nobody would be the wiser...]

>Maybe not an *easy* solution, but the "MPE way" to do this sort of thing.

It has been quite some time since I looked at NetIPC -- had HP's documents
been a little clearer, I might have started with that.  As it turns out,
there are a wealth of Unix/Linux books & manuals out there that
cover "sockets" programming, but none (other than HP's own manual) for
NetIPC.

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