The real takeaway is: - Don't write this stuff on your own. - Use someone else's mutex, and someone else's non-blocking datastructure. - Really, don't write

The real takeaway is: - Don't write this stuff on your own. - Use someone else's mutex, and someone else's non-blocking datastructure. - Really, don't write your own. Threading is not that hard unless you insist on leaving the safety off and aiming it at your foot.