Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: gropp-bill@cs.yale.edu (Bill Gropp)
Newsgroups: comp.sys.sun
Subject: read() and suntools?
Keywords: Windows
Message-ID: <55518@yale-celray.yale.UUCP>
Date: 22 Apr 89 18:13:32 GMT
Sender: usenet@rice.edu
Organization: Yale University Computer Science Dept, New Haven CT  06520-2158
Lines: 11
Approved: Sun-Spots@rice.edu
Original-Date: 31 Mar 89 21:46:46 GMT
X-Sun-Spots-Digest: Volume 7, Issue 240, message 13 of 13

I have a simple sunview program that displays a color contour plot on a
3/60 under SunOS 4.0.1.  If I move the cursor into the plot while the
program is reading data, it dies.  The traceback (after my routines)
starts from _doscan, passes through layers of notify_... and ndis_...
calls, and ends with a SIGBUS in win_is_io_grabbed.  I've looked at my
Sunview manuals without finding anything helpful; my guess is that my
program is too simple, and that Sunview is expecting some event handler to
be present without checking.  Can anyone enlighten me?  Pointers to the
appropriate manual pages would be fine.

Bill Gropp