[bug #20083] sigaction lambda appears not to get called in 1.8.1

[Gregory Marton]

URL:
  <http://savannah.gnu.org/bugs/?20083>

                 Summary: sigaction lambda appears not to get called in 1.8.1
                 Project: Guile
            Submitted by: gremio
            Submitted on: Tuesday 06/05/2007 at 10:27
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

In my guile 1.3.4 (sorry that I do not have a more up-to-date version to play
with):

 (let ((handler-called #f)) 
   (sigaction SIGALRM (lambda (sig) (set! handler-called #t))) 
   (raise SIGALRM) 
   handler-called)
 => #t

in guile 1.8.1 it returns false.  I've tried getting sigaction to display to
a port, etc., and it seems simply not to call the lambda.  It's as if
sigaction set the action to SIG_IGN instead of my lambda, except that when I
query sigaction I get the appropriate (#<procedure #f (sig)> . 2), not (1 .
2).  This is only slightly different from 1.3.4, where the result of the
subsequent sigaction call is (#<procedure (sig)> . 268435456) --- what is the
significance of the new #f?  Is this a bug, or am I using sigaction wrong?

Thanks,
Grem





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