this post was submitted on 15 Sep 2023
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Programming
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What worries me is that neither version handles any errors whatsoever.
What happens if the oven never gets hot, because the gas interface has been brought down for maintenance? Now we've allocated a raw pizza that will never be baked. Since we never time out or check errors here, eventually the customer will time out waiting for a pizza and switch to our competitor.
Are we really allocating a new oven for each pizza? Probably not;
ovenmay be a singleton. In one case, it's possible for the oven to fill up with pizzas andoven.Insertto fail; in the other case, it's possible for the kitchen to fill up with ovens, andoven.Newto fail. Lacking error checking, we're eventually going to get one or another kind of oven overflow.What happens if
order.kindis "fuck you"? We don't put any toppings on the pizza; but (in code not shown) the value oforder.kindprobably still gets printed on the receipt. So some poor schmuck gets delivered a none pizza with fuck you. Like so many other Internet services, our pizza service can be exploited for harassment.