This is logmsg and I don't think it's blocking anything.
sub logmsg {my $FH = $AKUtils::LOG || *STDOUT; print $FH "$0: ".(caller(1))[3].": @_\n";}

In reply to Re^4: Multithreads with an executable in the worker subroutine (fork (probably) won't help) by Anonymous Monk
in thread Multithreads with an executable in the worker subroutine by lskatz

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