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| author |  Joey Hess <joey@kitenet.net> | 2012-07-20 01:59:21 -0400 |
|---|---|---|
| committer | Joey Hess <joey@kitenet.net> | 2012-07-20 01:59:21 -0400 |
| commit | d9f26115c32c8df6865afc291d55b83b142c8428 (patch) | |
| tree | 23710e27d5bf9a22d5eb9e1519f5a951d7a5757d /Assistant/Threads/MountWatcher.hs | |
| parent | 6b4fe507f68427e0cb37e22f278c375151e8e89f (diff) | |
use dbus to activate GduVolumeMonitor if it's not already running
Diffstat (limited to 'Assistant/Threads/MountWatcher.hs')
| -rw-r--r-- | Assistant/Threads/MountWatcher.hs | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/Assistant/Threads/MountWatcher.hs b/Assistant/Threads/MountWatcher.hs index f1e33a99f..a6c15540a 100644 --- a/Assistant/Threads/MountWatcher.hs +++ b/Assistant/Threads/MountWatcher.hs @@ -22,6 +22,7 @@ import qualified Data.Set as S #if WITH_DBUS import DBus.Client import DBus +import Data.Word (Word32) #else #warning Building without dbus support; will use mtab polling #endif @@ -63,16 +64,34 @@ dbusThread st handle = (go =<< connectSession) `catchIO` onerr listClientNames :: Client -> IO [String] listClientNames client = do - reply <- call_ client (methodCall "/org/freedesktop/DBus" "org.freedesktop.DBus" "ListNames") - { methodCallDestination = Just "org.freedesktop.DBus" } + reply <- callDBus client "ListNames" [] return $ fromMaybe [] $ fromVariant (methodReturnBody reply !! 0) +callDBus :: Client -> MemberName -> [Variant] -> IO MethodReturn +callDBus client name params = call_ client $ + (methodCall "/org/freedesktop/DBus" "org.freedesktop.DBus" name) + { methodCallDestination = Just "org.freedesktop.DBus" + , methodCallBody = params + } + {- Examine the list of clients connected to dbus, to see if there - - are any we can use to monitor mounts. -} + - are any we can use to monitor mounts. If not, will attempt to start one. -} checkMountMonitor :: Client -> IO Bool -checkMountMonitor client = any (`elem` knownclients) <$> listClientNames client +checkMountMonitor client = ifM isrunning + ( return True + , startclient knownclients + ) where + isrunning = any (`elem` knownclients) <$> listClientNames client knownclients = ["org.gtk.Private.GduVolumeMonitor"] + startclient [] = return False + startclient (c:cs) = do + _ <- callDBus client "StartServiceByName" + [toVariant c, toVariant (0 :: Word32)] + ifM isrunning + ( return True + , startclient cs + ) {- Filter matching events recieved when drives are mounted. -} mountAdded ::MatchRule |