+ ,humanName=human
+ }
+
+import GenPrint, StdMisc, StdDebug, TTY
+
+gPrint{|BCState|} x st = gPrint{|*|} "BCState..." st
+
+derive gPrint MTaskDevice, MTaskShare, Maybe, MTaskResource, MTaskTask, TaskId, TTYSettings, TCPSettings, DateTime
+derive gPrint Parity, BaudRate, ByteSize
+
+cleanSharesTask :: Int MTaskDevice -> Task [MTaskShare]
+cleanSharesTask taskid d = updateShares d id //TODO
+//# shares = d.deviceShares
+//| not (trace_tn $ printToString taskid) = undef
+//| not (trace_tn $ printToString d.deviceTasks) = undef
+//| not (trace_tn $ printToString $ getNames taskid d) = undef
+//= upd (map $ up $ getNames taskid d) sdsStore
+// where
+// getNames :: Int MTaskDevice -> [String]
+// getNames i d = [t.MTaskTask.name\\t<-d.deviceTasks|t.ident==i]
+//
+// up :: [String] MTaskShare -> MTaskShare
+// up ns s = {MTaskShare | s & withTask=[t\\t<-s.withTask|not (isMember t ns)]}
+
+instance == MTaskShare where
+ (==) a b = a.identifier == b.identifier
+
+getRealShare :: MTaskDevice MTaskShare -> Shared BCValue
+getRealShare dev share = sdsFocus ()
+ $ mapReadWriteError (deviceLens dev share)
+ $ sdsFocus (Just (dev, share.identifier))
+ $ deviceStore
+
+//getRealShare :: MTaskDevice MTaskShare -> Shared BCValue
+//getRealShare dev share = sdsLens
+// ("realShare" +++ toString share.identifier)
+// (const $ Just (dev, share.identifier))
+// (SDSRead $ const $ \rs->case find ((==)dev) rs of
+// Nothing = Error $ exception "Device doesn't exist anymore"
+// Just {deviceShares} = case find ((==)share) deviceShares of
+// Nothing = Error $ exception "Share doesn't exist anymore"
+// Just share = Ok share.MTaskShare.value
+// )
+// (SDSWrite $ const $ \rs w->partition ((==)dev) devs of
+// ([], _) = Error $ exception "Device doesn't exist anymore"
+// ([_,_:_], _) = Error $ exception "Multiple matching devices"
+// ([d=:{deviceShares}], devs) = case partition ((==)share) deviceShares of
+// ([], _) = Error $ exception "Share doesn't exist anymore"
+// ([_,_:_], _) = Error $ exception "Multiple matching shares"
+// ([s], shares)
+// # s = {MTaskShare | s & value=val}
+// # d = {MTaskDevice | d & deviceShares=[s:shares]}
+// = Ok $ Just [d:devs])
+// (SDSNotify $ const $ \rs w
+
+deviceLens dev share = (mread, mwrite)
+where
+ mread :: [MTaskDevice] -> MaybeError TaskException BCValue
+ mread devs = mb2error (exception "Device lost") (find ((==)dev) devs)
+ `b` \d->mb2error (exception "Share lost") (find ((==)share) d.deviceShares)
+ `b` \s->Ok s.MTaskShare.value
+
+ mwrite :: BCValue [MTaskDevice] -> MaybeError TaskException (Maybe [MTaskDevice])
+ mwrite val devs = case partition ((==)dev) devs of
+ ([], _) = Error $ exception "Device doesn't exist anymore"
+ ([_,_:_], _) = Error $ exception "Multiple matching devices"
+ ([d=:{deviceShares}], devs) = case partition ((==)share) deviceShares of
+ ([], _) = Error $ exception "Share doesn't exist anymore"
+ ([_,_:_], _) = Error $ exception "Multiple matching shares"
+ ([s], shares)
+ # s = {MTaskShare | s & value=val}
+ # d = {MTaskDevice | d & deviceShares=[s:shares]}
+ = Ok $ Just [d:devs]
+
+updateShareFromPublish :: MTaskDevice Int BCValue -> Task BCValue
+updateShareFromPublish dev ident val = set val
+ $ mapReadWriteError (deviceLens dev dummy)
+ $ deviceStoreNP
+where
+ dummy = {MTaskShare|humanName="",value=BCValue 0,identifier=ident,withTask=[]}