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Stas Bekman writes:
> Justin Mason wrote:
> [...]
> > sub trap_sigalrm {
> > my ($handler) = @_;
> >
> > if ($^V lt v5.8.0) {
>
> I'd rather use something that will always work:
>
> $] < 5.008
>
> I'm not sure v-objects work everywhere (I could be wrong).
You're right. problems with 5.005.
> > print "using SIG\n";
> > $SIG{ALRM} = $handler;
> > } else {
> > print "using sigaction\n";
> > use POSIX qw();
>
> that should be:
>
> require POSIX;
>
> use() is always executed, ragardless where you put it. perldoc -f use.
sure -- not a problem for me, since "use POSIX" at least doesn't
cause errors or warnings on any perl since 5.005 ;) but good point.
> > POSIX::sigaction POSIX::SIGALRM(), new POSIX::SigAction $handler;
>
> Also I have to note that under Apache2 (if you plan to run this code under
> modperl2) most signals are not available, due to thread-safety and other
> issues. So only the POSIX alarm code works (i.e. requires 5.8.x+) and only
> with prefork mpm.
> http://perl.apache.org/docs/2.0/user/coding/coding.html#Using_Signal_Handlers
interesting -- not an issue for me but worth noting. cheers,
- --j.
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