Messages in this thread |  | | | Date | Mon, 3 Feb 1997 12:17:29 +0530 | | From | (R. Arvind[MIEL]) | | Subject | Re: Async IO |
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Jurgen Botz wrote : > > In article <vyzraj29l7p.fsf@issan.informatik.uni-dortmund.de>, > Andreas Schwab <schwab@LS5.informatik.uni-dortmund.de> wrote: > >|> signal number 0 is unused > > > >No, it's not. It has a defined meaning (see kill(2)). > > Hmm, my kill(2) manpage (readhat 4.0) doesn't mention anything > about signal number 0. Enlighten us? >
As far as i know, signal 0 is used for error checking. no signal is actually sent to the destination process. Its often used to check for the existence of a particular pid.
-Arvind
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