gameServer/ServerCore.hs
author unc0rr
Fri, 28 Oct 2011 19:20:35 +0400
changeset 6223 cc3eb9b7230f
parent 5209 f7a610e2ef5f
child 7529 058fcb451b37
permissions -rw-r--r--
It doesn't make much sense to make checks like 'if(game)' if you never set game to 0. Using smart pointers instead. Does it fix segfaults? Probably.

module ServerCore where

import Network
import Control.Concurrent
import Control.Monad
import System.Log.Logger
import Control.Monad.Reader
import Control.Monad.State.Strict
import Data.Set as Set
import qualified Data.ByteString.Char8 as B
import Control.DeepSeq
import Data.Unique
import Data.Maybe
--------------------------------------
import CoreTypes
import NetRoutines
import HWProtoCore
import Actions
import OfficialServer.DBInteraction
import ServerState


timerLoop :: Int -> Chan CoreMessage -> IO ()
timerLoop tick messagesChan = threadDelay 30000000 >> writeChan messagesChan (TimerAction tick) >> timerLoop (tick + 1) messagesChan


reactCmd :: [B.ByteString] -> StateT ServerState IO ()
reactCmd cmd = do
    (Just ci) <- gets clientIndex
    rnc <- gets roomsClients
    actions <- liftIO $ withRoomsAndClients rnc (\irnc -> runReader (handleCmd cmd) (ci, irnc))
    forM_ (actions `deepseq` actions) processAction

mainLoop :: StateT ServerState IO ()
mainLoop = forever $ do
    -- get >>= \s -> put $! s

    si <- gets serverInfo
    r <- liftIO $ readChan $ coreChan si

    case r of
        Accept ci -> processAction (AddClient ci)

        ClientMessage (ci, cmd) -> do
            liftIO $ debugM "Clients" $ show ci ++ ": " ++ show cmd
            
            removed <- gets removedClients
            unless (ci `Set.member` removed) $ do
                modify (\s -> s{clientIndex = Just ci})
                reactCmd cmd

        Remove ci ->
            processAction (DeleteClient ci)

        ClientAccountInfo ci uid info -> do
            rnc <- gets roomsClients
            exists <- liftIO $ clientExists rnc ci
            when exists $ do
                modify (\s -> s{clientIndex = Just ci})
                uid' <- client's clUID
                when (uid == hashUnique uid') $ processAction (ProcessAccountInfo info)
                return ()

        TimerAction tick ->
                mapM_ processAction $
                    PingAll : [StatsAction | even tick]


startServer :: ServerInfo -> IO ()
startServer si = do
    noticeM "Core" $ "Listening on port " ++ show (listenPort si)

    _ <- forkIO $
        acceptLoop
            (fromJust $ serverSocket si)
            (coreChan si)

    return ()

    _ <- forkIO $ timerLoop 0 $ coreChan si

    startDBConnection si

    rnc <- newRoomsAndClients newRoom

    evalStateT mainLoop (ServerState Nothing si Set.empty rnc)