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From: zyg@geovision.UUCP (Zygmunt Wiercioch)
Newsgroups: comp.windows.x
Subject: Re: Blocked and Non-Blocked Event Handling in X
Message-ID: <152@geovision.UUCP>
Date: Mon, 31-Aug-87 19:54:24 EDT
Article-I.D.: geovisio.152
Posted: Mon Aug 31 19:54:24 1987
Date-Received: Thu, 3-Sep-87 03:57:21 EDT
References: <8708252051.AA19394@vulcan.dec.com>
Reply-To: zyg@geovision.UUCP (Zygmunt Wiercioch)
Organization: GeoVision Corporation, Ottawa, Canada
Lines: 11

Using select on the display file descriptor ( dpyno() ) works just fine.
We have a similar implementation: a display list process receiving data 
via a socket and also handling X events.

The only problem is the overhead in the select call.  You should send
as much as possible down the pipe and process it before doing the select.
I have found that if the amount of data to process was small, up to
70% of the time was spent handling the select/read loop.  Buffering the
requests made a big difference.
-- 
 Zygmunt Wiercioch    UUCP: ...!utzoo!dciem!nrcaer!cognos!geovision!zyg