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From: pf@cpsc53.UUCP (Peter Fry)
Newsgroups: comp.sys.amiga
Subject: Q: exec/timer.device request cancelling
Message-ID: <100262@cpsc53.UUCP>
Date: Thu, 14-May-87 08:32:35 EDT
Article-I.D.: cpsc53.100262
Posted: Thu May 14 08:32:35 1987
Date-Received: Sat, 16-May-87 10:59:53 EDT
Distribution: na
Organization: AT&T-IS CPSC, Atlanta, GA
Lines: 27

Quick question:

I am using the timer.device (UNIT_VBLANK). Do I have to cancel outstanding
timer requests before closing the device and exit'ing?
[Of course.]

OK then, how?

I would prefer a command that caused all outstanding requests to be returned
with an error status, CMD_FLUSH would be great - if it was supported by
the device.

( The following options are not available to me:
      1) Wait for all outstanding requests to return. (Next week option.)
      2) Do not issue requests that will not complete by the end of the
	 program. (Precognition option)
)

I would prefer not to have to maintain my own list of (potential) timer
requests and do the messy sums myself - considering the driver must
contain the code to do that already.

Peter C. Fry
at AT&T CPSC, Atlanta GA
ihnp4!cpsc53!pf

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