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State.hs
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State.hs
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{-# LANGUAGE TypeSynonymInstances, FlexibleInstances, TypeFamilies #-}
module State
( module Control.Monad.IO.Class
, module Control.Monad.Reader.Class
, module Control.Monad.EmbedIO
, module Control.Concurrent.STM
, module Control.Concurrent.STM.TVar
, NPT
, NPTState(..)
, runNPT
, emptyState
, log
) where
import Control.Concurrent.Chan
import Control.Concurrent.STM
import Control.Concurrent.STM.TVar
import Control.Monad.EmbedIO
import Control.Monad.IO.Class
import Control.Monad.Reader
import Control.Monad.Reader.Class
import Control.Monad.Trans
--import Data.Accessor
--import Data.Accessor.Template
import Data.ByteString.Lazy (ByteString)
import qualified Data.ByteString.Lazy as B
import qualified Data.ByteString.Lazy.Char8 as BC8
import Data.Map (Map)
import qualified Data.Map as M
import Data.String.Class
import Data.Word
import Network.Socket
import Prelude hiding (log, putStrLn)
import Types
type NPT = ReaderT NPTState IO
data NPTState = NPTState {
log_ :: ByteString -> IO (),
listeningAddr :: TVar HostName,
listeningPort :: TVar PortNumber,
torrents :: TVar (Map InfoHash Torrent),
peerID :: PeerID,
-- DHT-related
listeningPortDHT :: TVar PortNumber,
dHTNodeID :: DHTNodeID,
bootstrapNodes :: [Address],
queryDB :: TVar QueryDB,
-- misc
useRetracker :: TVar Bool
}
emptyState :: Chan ByteString -> IO NPTState
emptyState lc = do
la <- newTVarIO "localhost"
lp <- newTVarIO 43789
lpd <- newTVarIO 43788
tors <- newTVarIO M.empty
qdb <- newTVarIO M.empty
urt <- newTVarIO False
pid <- genPeerID
nid <- genDHTNodeID
return $ NPTState {
log_ = writeChan lc,
listeningAddr = la,
listeningPort = lp,
listeningPortDHT = lpd,
bootstrapNodes = [
(StringName "dht.transmissionbt.com", 6881),
(StringName "router.bittorrent.com", 6881)
],
peerID = pid,
dHTNodeID = nid,
torrents = tors,
queryDB = qdb,
useRetracker = urt
}
-- $( deriveAccessors ''NPTState )
--log :: ConvLazyByteString a => a -> NPT ()
--log = log__ . toLazyByteString
log :: StringRWIO s => s -> NPT ()
log = liftIO . putStrLn
log__ :: ByteString -> NPT ()
log__ nya = do
a <- ask
liftIO $ log_ a $ BC8.snoc nya '\n'
runNPT_ :: NPT a -> NPTState -> IO a
runNPT_ x s = do
runReaderT x s
runNPT :: NPT () -> NPTState -> IO ()
runNPT x s = do
runNPT_ x s
return ()
--log :: ByteString -> NPT ()
--log s = do
-- --get >>= lift $ writeChan s
-- a <- get
-- return ()
instance EmbedIO NPT where
type Content NPT = NPTState
embed f = do
s <- ask
liftIO $ f s
callback act cont = runNPT_ act cont