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{- git-annex assistant push tracking
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Assistant.Types.Pushes where
import Common.Annex
import Utility.TSet
import Control.Concurrent.STM
import Control.Concurrent.MSampleVar
import Data.Time.Clock
import qualified Data.Map as M
{- Track the most recent push failure for each remote. -}
type PushMap = M.Map Remote UTCTime
type FailedPushMap = TMVar PushMap
{- The TSet is recent, successful pushes that other remotes should be
- notified about.
-
- The MSampleVar is written to when the PushNotifier thread should be
- restarted for some reason.
-}
data PushNotifier = PushNotifier
{ pushNotifierSuccesses :: TSet UUID
, pushNotifierWaiter :: MSampleVar ()
}
{- The TMVar starts empty, and is left empty when there are no
- failed pushes. This way we can block until there are some failed pushes.
-}
newFailedPushMap :: IO FailedPushMap
newFailedPushMap = atomically newEmptyTMVar
newPushNotifier :: IO PushNotifier
newPushNotifier = PushNotifier
<$> newTSet
<*> newEmptySV
|
