-syncSerialChannel :: String TTYSettings (Shared ([MTaskMSGRecv],[MTaskMSGSend],Bool)) -> Task ()
-syncSerialChannel dev opts rw = Task eval
- where
- eval event evalOpts tree=:(TCInit taskId ts) iworld=:{IWorld|world}
- = case TTYopen dev opts world of
- (False, _, world)
- # (err, world) = TTYerror world
- = (ExceptionResult (exception err), {iworld & world=world})
- (True, tty, world)
- # iworld = {iworld & world=world, resources=Just (TTYd tty)}
- = case addBackgroundTask 42 (BackgroundTask (serialDeviceBackgroundTask rw)) iworld of
- (Error e, iworld) = (ExceptionResult (exception "h"), iworld)
- (Ok _, iworld) = (ValueResult NoValue {TaskEvalInfo|lastEvent=ts,removedTasks=[],refreshSensitive=True} NoChange (TCBasic taskId ts JSONNull False), iworld)
-
- eval _ _ tree=:(TCBasic _ ts _ _) iworld
- = (ValueResult NoValue {TaskEvalInfo|lastEvent=ts,removedTasks=[],refreshSensitive=False} NoChange tree, iworld)
-
- eval event evalOpts tree=:(TCDestroy _) iworld=:{IWorld|resources,world}
- # (TTYd tty) = fromJust resources
- # (ok, world) = TTYclose tty world
- # iworld = {iworld & world=world,resources=Nothing}
- = case removeBackgroundTask 42 iworld of
- (Error e, iworld) = (ExceptionResult (exception "h"), iworld)
- (Ok _, iworld) = (DestroyedResult, iworld)
-
-serialDeviceBackgroundTask :: (Shared ([MTaskMSGRecv],[MTaskMSGSend],Bool)) !*IWorld -> (MaybeError TaskException (), *IWorld)
-serialDeviceBackgroundTask rw iworld
- = case read rw iworld of
- (Error e, iworld) = (Error $ exception "share couldn't be read", iworld)
- (Ok (r,s,ss), iworld)
- # (Just (TTYd tty)) = iworld.resources
- # tty = writet (map encode s) tty
- # (ml, tty) = case TTYavailable tty of
- (False, tty) = ([], tty)
- (_, tty)
- # (l, tty) = TTYreadline tty
- = ([decode l], tty)
- # iworld = {iworld & resources=Just (TTYd tty)}
- = case write (r++ml,[],False) rw iworld of
- (Error e, iworld) = (Error $ exception "share couldn't be written", iworld)
- (Ok _, iworld) = case notify rw iworld of
- (Error e, iworld) = (Error $ exception "share couldn't be notified", iworld)
- (Ok _, iworld) = (Ok (), iworld)
- where
- writet :: [String] -> (*TTY -> *TTY)
- writet [] = id
- writet [x:xs] = writet xs o TTYwrite x
-
-