Re: Problem with alarm() not functioning twice in one program.

["Max Bowsher" <maxb at ukf dot net>]

Brian Ford wrote:
> On Tue, 8 Feb 2005, Max Bowsher wrote:
> > Brian Ford wrote:
> > > On Tue, 8 Feb 2005, Max Bowsher wrote:
> > > > The following program produces the output:
> > > >
> > > > Begin
> > > > Done
> > > > Begin
> > > > ...and then hangs.
> > > >
> > > > Can anyone help me understand why?
> > > http://www.cygwin.com/ml/cygwin/2004-10/msg00598.html
> >
> > Ah, OK.
> >
> > So are you saying "SIGALRM has been entered, but has not returned, so the
> > signal handling code won't try to enter it again" ?
>
> SIGALRM has been blocked upon entry to the signal handling routine.
> Since you long jumped out of it, it's still blocked.
>
> Did you follow that thread through to the end?

No, I assumed you were pointing to a specific message.

> Maybe I should have quoted
> this instead:
>
> http://www.cygwin.com/ml/cygwin/2004-10/msg00606.html

Very helpful, thanks.

Max.


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