Since my code DOES seems to work correctly,

$ perl -MIO::Select -E'
   my $sel = IO::Select->new(\*STDIN);
   $SIG{ALRM} = sub { };
   alarm(1);
   while (my @ready = $sel->can_read()) {
      # ...
   }
   say "HERE";
'
HERE

[download]

The OP doesn't want to reach HERE, but apparently that's not a problem for you.

In reply to Re^5: IO::Select and alarm() by ikegami
in thread IO::Select and alarm() by Maddingue

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