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{- git-annex assistant daemon status thread
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Assistant.Threads.DaemonStatus where
import Assistant.Common
import Assistant.DaemonStatus
import Assistant.ThreadedMonad
import Utility.ThreadScheduler
import Utility.NotificationBroadcaster
thisThread :: ThreadName
thisThread = "DaemonStatus"
{- This writes the daemon status to disk, when it changes, but no more
- frequently than once every ten minutes.
-}
daemonStatusThread :: ThreadState -> DaemonStatusHandle -> NamedThread
daemonStatusThread st dstatus = thread $ do
notifier <- newNotificationHandle
=<< changeNotifier <$> getDaemonStatus dstatus
checkpoint
runEvery (Seconds tenMinutes) $ do
waitNotification notifier
checkpoint
where
thread = NamedThread thisThread
checkpoint = do
status <- getDaemonStatus dstatus
file <- runThreadState st $ fromRepo gitAnnexDaemonStatusFile
writeDaemonStatusFile file status
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