Path: utzoo!attcan!uunet!mcsun!cernvax!chx400!ethz!stp
From: stp@ethz.UUCP (Stephan Paschedag)
Newsgroups: comp.os.os9
Subject: Re: signal problem
Message-ID: <5671@ethz.UUCP>
Date: 23 Aug 90 19:50:17 GMT
References: <5596@ethz.UUCP> <3943@disk.UUCP>
Reply-To: stp@bernina.ethz.ch.UUCP (Stephan Paschedag)
Organization: ETH Zuerich, Switzerland
Lines: 26

What about the following situation :


   A process has setup a intercept handler to catch ALL signals 
   (including SIGQUIT & SIGINT). The process has to do some some
   special operation on each of the signals (especially on SIGQUIT
   and SIGINT). Now the process is doing a I$Write to a SCF device.
   During this write the output buffer of the device driver becomes
   full and a F$Sleep for the process is executed. During this
   sleep a SIGQUIT arrives, the process exits from the F$Sleep call
   and the driver recognises the signal and exits with the Carry bit
   set and the Error code in d1.w. How can the process find out how
   many characters have been written to the device ? (the count of
   written characters shound also be returned in d1 !!!

   Any ideas for a solution ?

  Stephan


==============================================================================
OS/2 & PS/2 : half an operating system for half a computer

Stephan Paschedag                                         stp@ethz.UUCP
MPL AG, Zelgweg 12, CH-5405 Baden-Daettwil     ..!mcvax!cernvax!chx400!ethz!stp
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