I sometimes wonder what is the fundamental distinction between a callback-based API and this wakeup-based task API. I guess the main difference is that in a callback you generally provide the result as an argument whereas with a wakeup-based API you just wake the task and it has to look for the result in some stored state somewhere.
But ultimately both of them take the "rest of the computation"/continuation and store it somewhere (i.e. on some sleeping task/callback list) to be awakened/invoked later.
But ultimately both of them take the "rest of the computation"/continuation and store it somewhere (i.e. on some sleeping task/callback list) to be awakened/invoked later.