or download this
my $thread = threads->create(\$self->_openFDCObject($swObject,$switch)
+);
my $thread = threads->create(\$self->_openFDCObject,$swObject,$switch)
+;
my $thread = threads->create($self->_openFDCObject,$swObject,$switch);
my $thread = threads->create(&_openFDCObject,$swObject,$switch);