> Completion based APIs are superior IMO Perhaps it's just that I cut my teeth on the classic Mac OS and absorbed its way of thinking, but after using its asyn

> Completion based APIs are superior IMO Perhaps it's just that I cut my teeth on the classic Mac OS and absorbed its way of thinking, but after using its asynchronous, callback-driven IO API, the multithreaded polling/blocking approach dominant in the Unix world felt like a clunky step backward. I've been glad to see a steady shift toward asynchronous state machines as the preferred approach for IO.