2016-01-05 18:49 GMT+01:00 Henrik Johansen <henrik.s.johansen@veloxit.no>:
ifCurtailed: only unwinds if an error/termination occured, so that would mean not signalling the semaphore when everything goes as planned, and we leave the critical section...

I not suppose to replace #ensure: with #ifCurtailed:. I think about:

signalRequired := false.
 [
 [signalRequired := true.
 self wait] ifCurtailed: [signalRequired := false].
blockValue := mutuallyExcludedBlock value
 ] ensure: [signalRequired ifTrue: [self signal]].
 ^blockValue