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improved actors.sync

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This commit is contained in:
Araq 2011-12-31 11:18:18 +01:00
commit 92395568bb
2 changed files with 78 additions and 2 deletions
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14
lib/pure/actors.nim
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@ -119,15 +119,25 @@ proc createActorPool*[TIn, TOut](a: var TActorPool[TIn, TOut], poolSize = 4) =
proc sync*[TIn, TOut](a: var TActorPool[TIn, TOut], polling=50) =
## waits for every actor of `a` to finish with its work. Currently this is
## implemented as polling every `polling` ms. This will change in a later
## implemented as polling every `polling` ms and has a slight chance
## of failing since we check for every actor to be in `ready` state and not
## for messages still in ether. This will change in a later
## version, however.
var allReadyCount = 0
while true:
var wait = false
for i in 0..high(a.actors):
if not a.actors[i].i.ready:
wait = true
allReadyCount = 0
break
if not wait: break
if not wait:
# it's possible that some actor sent a message to some other actor but
# both appeared to be non-working as the message takes some time to
# arrive. We assume that this won't take longer than `polling` and
# simply attempt a second time and declare victory then. ;-)
inc allReadyCount
if allReadyCount > 1: break
sleep(polling)
proc terminate*[TIn, TOut](a: var TActorPool[TIn, TOut]) =