Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!rochester!pt.cs.cmu.edu!andrew.cmu.edu!<UNAUTHENTICATED>+
From: Daniel.Stodolsky@cs.cmu.edu
Newsgroups: comp.sys.hp
Subject: asynchronous io on 300 & 800 series
Message-ID: <wYYd8e200hMNQ2tUNH@cs.cmu.edu>
Date: 11 Jun 89 16:24:10 GMT
Organization: Carnegie Mellon, Pittsburgh, PA
Lines: 19

>From probing the ioctl man pages from our hp 835, I see that
asynchronous io is supported (i.e, the system can generate SIGIO when io
is availible on a file). The end of the man page says, under dependencies

	SERIES 300 
		Asynchronous I/O not supported.

Two questions:

	1) is the dependency true?
	2) If so, does anyone have a work around that does not involve polling. 

This has arisen in the context of a dual threaded program that needs to
carry on some computation but also respond to i/o on a udp port. 

	Daniel Stodolsky
	danner@edrc.cmu.edu (128.2.214.1)
	Engineering Design Research Center
	Carneige Mellon University