X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Control%2FConcurrent.hs;h=62a30b434889b0cdd1e410d2c10275d740d85b65;hb=88f389fc1807aac92b4b026c2b09b2ec6266d05b;hp=79b8352f5002174e12372de73dcf2f8c23fc72c4;hpb=7a1ac0c9d1cb81043b3e8f45c7451ad34336ddc5;p=ghc-base.git

diff --git a/Control/Concurrent.hs b/Control/Concurrent.hs
index 79b8352..62a30b4 100644
--- a/Control/Concurrent.hs
+++ b/Control/Concurrent.hs
@@ -1,4 +1,11 @@
+{-# LANGUAGE CPP
+           , ForeignFunctionInterface
+           , MagicHash
+           , UnboxedTuples
+           , ScopedTypeVariables
+  #-}
 {-# OPTIONS_GHC -fno-warn-unused-imports #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Control.Concurrent
@@ -28,11 +35,17 @@ module Control.Concurrent (
 
         forkIO,
 #ifdef __GLASGOW_HASKELL__
-        forkIOUnmasked,
+        forkIOWithUnmask,
         killThread,
         throwTo,
 #endif
 
+        -- ** Threads with affinity
+        forkOn,
+        forkOnWithUnmask,
+        getNumCapabilities,
+        threadCapability,
+
         -- * Scheduling
 
         -- $conc_scheduling     
@@ -71,7 +84,7 @@ module Control.Concurrent (
         forkOS,
         isCurrentThreadBound,
         runInBoundThread,
-        runInUnboundThread
+        runInUnboundThread,
 #endif
 
         -- * GHC's implementation of concurrency
@@ -90,6 +103,10 @@ module Control.Concurrent (
         -- ** Pre-emption
 
         -- $preemption
+
+        -- * Deprecated functions
+        forkIOUnmasked
+
     ) where
 
 import Prelude
@@ -98,8 +115,7 @@ import Control.Exception.Base as Exception
 
 #ifdef __GLASGOW_HASKELL__
 import GHC.Exception
-import GHC.Conc         ( ThreadId(..), myThreadId, killThread, yield,
-                          threadDelay, forkIO, forkIOUnmasked, childHandler )
+import GHC.Conc hiding (threadWaitRead, threadWaitWrite)
 import qualified GHC.Conc
 import GHC.IO           ( IO(..), unsafeInterleaveIO, unsafeUnmask )
 import GHC.IORef        ( newIORef, readIORef, writeIORef )
@@ -451,6 +467,11 @@ unsafeResult = either Exception.throwIO return
 
 -- | Block the current thread until data is available to read on the
 -- given file descriptor (GHC only).
+--
+-- This will throw an 'IOError' if the file descriptor was closed
+-- while this thread was blocked.  To safely close a file descriptor
+-- that has been used with 'threadWaitRead', use
+-- 'GHC.Conc.closeFdWith'.
 threadWaitRead :: Fd -> IO ()
 threadWaitRead fd
 #ifdef mingw32_HOST_OS
@@ -471,6 +492,11 @@ threadWaitRead fd
 
 -- | Block the current thread until data can be written to the
 -- given file descriptor (GHC only).
+--
+-- This will throw an 'IOError' if the file descriptor was closed
+-- while this thread was blocked.  To safely close a file descriptor
+-- that has been used with 'threadWaitWrite', use
+-- 'GHC.Conc.closeFdWith'.
 threadWaitWrite :: Fd -> IO ()
 threadWaitWrite fd
 #ifdef mingw32_HOST_OS
@@ -495,7 +521,7 @@ withThread io = do
 waitFd :: Fd -> CInt -> IO ()
 waitFd fd write = do
    throwErrnoIfMinus1_ "fdReady" $
-        fdReady (fromIntegral fd) write (fromIntegral iNFINITE) 0
+        fdReady (fromIntegral fd) write iNFINITE 0
 
 iNFINITE :: CInt
 iNFINITE = 0xFFFFFFFF -- urgh