Campbell Ritchie (59) [Avatar] Offline
#1
Page 227 about ¼way down, or Listing 17.5, blob ➋.
It says against blob ➋, “. . . block until it won’t be available.”

Surely we aren't blocking until something isn't available? Surely that should read , “. . . block until it is available.”, or, “. . . block while it isn’t available.”
The present tense fits usual English usage better than the future tense.