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From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: comp.sys.amiga
Subject: Re: Q: exec/timer.device request cancelling
Message-ID: <8705150201.AA18789@cory.Berkeley.EDU>
Date: Thu, 14-May-87 22:01:46 EDT
Article-I.D.: cory.8705150201.AA18789
Posted: Thu May 14 22:01:46 1987
Date-Received: Sat, 16-May-87 13:10:38 EDT
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>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.]

	Of course.

>OK then, how?

	AbortIO() + WaitIO()

>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.

	Sorry, no go.  You have to keep track of outstanding requests
yourself.  Using the Amiga library support, you would have to AbortIO() +
WaitIO() each outstanding request before closing the device.

	I posted a package a while back called DIO which does what you want.
I will attempt to send it to you via mail.


				-Matt