X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=GHC%2FConc.lhs;h=93ffba76c774eb931e27f12fbf40461a0e1dda27;hb=bb534f206682be14daf72b33c6105ab27295c6ac;hp=02b256a816e1cd87134dbca67c4bb1518040da66;hpb=aaf764b3ad8b1816d68b5f27299eac125f08e1a5;p=ghc-base.git diff --git a/GHC/Conc.lhs b/GHC/Conc.lhs index 02b256a..93ffba7 100644 --- a/GHC/Conc.lhs +++ b/GHC/Conc.lhs @@ -14,7 +14,6 @@ -- ----------------------------------------------------------------------------- -#include "ghcconfig.h" module GHC.Conc ( ThreadId(..) @@ -55,7 +54,7 @@ module GHC.Conc , writeTVar -- :: a -> TVar a -> STM () , unsafeIOToSTM -- :: IO a -> STM a -#ifdef mingw32_TARGET_OS +#ifdef mingw32_HOST_OS , asyncRead -- :: Int -> Int -> Int -> Ptr a -> IO (Int, Int) , asyncWrite -- :: Int -> Int -> Int -> Ptr a -> IO (Int, Int) , asyncDoProc -- :: FunPtr (Ptr a -> IO Int) -> Ptr a -> IO Int @@ -81,6 +80,8 @@ import GHC.Exception ( Exception(..), AsyncException(..) ) import GHC.Pack ( packCString# ) import GHC.Ptr ( Ptr(..), plusPtr, FunPtr(..) ) import GHC.STRef +import Data.Typeable +#include "Typeable.h" infixr 0 `par`, `pseq` \end{code} @@ -114,6 +115,9 @@ This misfeature will hopefully be corrected at a later date. it defines 'ThreadId' as a synonym for (). -} +INSTANCE_TYPEABLE0(ThreadId,threadIdTc,"ThreadId") + + --forkIO has now been hoisted out into the Concurrent library. {- | 'killThread' terminates the given thread (GHC only). @@ -204,6 +208,8 @@ transactions. \begin{code} newtype STM a = STM (State# RealWorld -> (# State# RealWorld, a #)) +INSTANCE_TYPEABLE1(STM,stmTc,"STM" ) + unSTM :: STM a -> (State# RealWorld -> (# State# RealWorld, a #)) unSTM (STM a) = a @@ -262,6 +268,8 @@ catchSTM (STM m) k = STM $ \s -> catchSTM# m (\ex -> unSTM (k ex)) s data TVar a = TVar (TVar# RealWorld a) +INSTANCE_TYPEABLE1(TVar,tvarTc,"TVar" ) + instance Eq (TVar a) where (TVar tvar1#) == (TVar tvar2#) = sameTVar# tvar1# tvar2# @@ -300,6 +308,8 @@ writes. \begin{code} --Defined in IOBase to avoid cycle: data MVar a = MVar (SynchVar# RealWorld a) +INSTANCE_TYPEABLE1(MVar,mvarTc,"MVar" ) + -- |Create an 'MVar' which is initially empty. newEmptyMVar :: IO (MVar a) newEmptyMVar = IO $ \ s# -> @@ -377,25 +387,20 @@ addMVarFinalizer (MVar m) finalizer = %************************************************************************ \begin{code} -#ifdef mingw32_TARGET_OS +#ifdef mingw32_HOST_OS -- Note: threadDelay, threadWaitRead and threadWaitWrite aren't really functional -- on Win32, but left in there because lib code (still) uses them (the manner -- in which they're used doesn't cause problems on a Win32 platform though.) asyncRead :: Int -> Int -> Int -> Ptr a -> IO (Int, Int) -asyncRead (I# fd) (I# isSock) (I# len) (Ptr buf) = do - (l, rc) <- IO (\s -> case asyncRead# fd isSock len buf s of - (# s, len#, err# #) -> (# s, (I# len#, I# err#) #)) - -- special handling for Ctrl+C-aborted 'standard input' reads; - -- see rts/win32/ConsoleHandler.c for details. - if (l == 0 && rc == -2) - then asyncRead (I# fd) (I# isSock) (I# len) (Ptr buf) - else return (l,rc) +asyncRead (I# fd) (I# isSock) (I# len) (Ptr buf) = + IO $ \s -> case asyncRead# fd isSock len buf s of + (# s, len#, err# #) -> (# s, (I# len#, I# err#) #) asyncWrite :: Int -> Int -> Int -> Ptr a -> IO (Int, Int) -asyncWrite (I# fd) (I# isSock) (I# len) (Ptr buf) = - IO $ \s -> case asyncWrite# fd isSock len buf s of +asyncWrite (I# fd) (I# isSock) (I# len) (Ptr buf) = + IO $ \s -> case asyncWrite# fd isSock len buf s of (# s, len#, err# #) -> (# s, (I# len#, I# err#) #) asyncDoProc :: FunPtr (Ptr a -> IO Int) -> Ptr a -> IO Int @@ -426,7 +431,7 @@ asyncWriteBA fd isSock len off bufB = -- given file descriptor (GHC only). threadWaitRead :: Fd -> IO () threadWaitRead fd -#ifndef mingw32_TARGET_OS +#ifndef mingw32_HOST_OS | threaded = waitForReadEvent fd #endif | otherwise = IO $ \s -> @@ -438,7 +443,7 @@ threadWaitRead fd -- given file descriptor (GHC only). threadWaitWrite :: Fd -> IO () threadWaitWrite fd -#ifndef mingw32_TARGET_OS +#ifndef mingw32_HOST_OS | threaded = waitForWriteEvent fd #endif | otherwise = IO $ \s -> @@ -459,7 +464,7 @@ threadWaitWrite fd -- threadDelay :: Int -> IO () threadDelay time -#ifndef mingw32_TARGET_OS +#ifndef mingw32_HOST_OS | threaded = waitForDelayEvent time #else | threaded = c_Sleep (fromIntegral (time `quot` 1000)) @@ -470,7 +475,7 @@ threadDelay time }} -- On Windows, we just make a safe call to 'Sleep' to implement threadDelay. -#ifdef mingw32_TARGET_OS +#ifdef mingw32_HOST_OS foreign import ccall safe "Sleep" c_Sleep :: CInt -> IO () #endif @@ -508,7 +513,7 @@ foreign import ccall unsafe "rtsSupportsBoundThreads" threaded :: Bool -- - forkProcess will kill the IO manager thread. Let's just -- hope we don't need to do any blocking IO between fork & exec. -#ifndef mingw32_TARGET_OS +#ifndef mingw32_HOST_OS data IOReq = Read {-# UNPACK #-} !Fd {-# UNPACK #-} !(MVar ())