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{- Common infrastructure for the git-annex assistant threads.
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Assistant.Common (
module X,
ThreadName,
NamedThread(..),
runNamedThread,
debug
) where
import Common.Annex as X
import Assistant.Monad as X
import Assistant.Alert
import Assistant.DaemonStatus
import System.Log.Logger
import qualified Control.Exception as E
type ThreadName = String
data NamedThread = NamedThread ThreadName (Assistant ())
debug :: [String] -> Assistant ()
debug ws = do
name <- getAssistant threadName
liftIO $ debugM name $ unwords $ (name ++ ":") : ws
runNamedThread :: NamedThread -> Assistant ()
runNamedThread (NamedThread name a) = do
d <- getAssistant id
liftIO . go $ d { threadName = name }
where
go d = do
r <- E.try (runAssistant a d) :: IO (Either E.SomeException ())
case r of
Right _ -> noop
Left e -> do
let msg = unwords [name, "crashed:", show e]
hPutStrLn stderr msg
-- TODO click to restart
void $ addAlert (daemonStatusHandle d) $
warningAlert name msg
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