import qualified Data.ByteString.Lazy as B
import Codec.Binary.UTF8.String hiding (encode,decode)
-import Foreign.Ptr
-import Foreign.StablePtr
+import Data.IORef
+import System.IO.Unsafe
import JVM.ClassFile
import JVM.Assembler
toString bstr = decodeString $ map (chr . fromIntegral) $ B.unpack bstr
--- those functions are for the "global map hax"
--- TODO(bernhard): other solution please
-foreign import ccall "set_mate_context"
- set_mate_context :: Ptr () -> IO ()
-
-foreign import ccall "get_mate_context"
- get_mate_context :: IO (Ptr ())
-
data MateCtx = MateCtx {
ctxMethodMap :: MethodMap,
ctxTrapMap :: TrapMap,
emptyMateCtx :: MateCtx
emptyMateCtx = MateCtx M.empty M.empty M.empty M.empty M.empty M.empty M.empty
-ctx2ptr :: MateCtx -> IO (Ptr ())
-ctx2ptr ctx = do
- ptr <- newStablePtr ctx
- return $ castStablePtrToPtr ptr
-
-ptr2ctx :: Ptr () -> IO MateCtx
-ptr2ctx ptr = deRefStablePtr (castPtrToStablePtr ptr :: StablePtr MateCtx)
+mateCtx :: IORef MateCtx
+{-# NOINLINE mateCtx #-}
+mateCtx = unsafePerformIO $ newIORef emptyMateCtx
setMethodMap :: MethodMap -> IO ()
setMethodMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxMethodMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxMethodMap = m }
getMethodMap :: IO MethodMap
getMethodMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxMethodMap ctx
setTrapMap :: TrapMap -> IO ()
setTrapMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxTrapMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxTrapMap = m }
getTrapMap :: IO TrapMap
getTrapMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxTrapMap ctx
setClassMap :: ClassMap -> IO ()
setClassMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxClassMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxClassMap = m }
getClassMap :: IO ClassMap
getClassMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxClassMap ctx
setVirtualMap :: VirtualMap -> IO ()
setVirtualMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxVirtualMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxVirtualMap = m }
getVirtualMap :: IO VirtualMap
getVirtualMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxVirtualMap ctx
setStringMap :: StringMap -> IO ()
setStringMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxStringMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxStringMap = m }
getStringMap :: IO StringMap
getStringMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxStringMap ctx
setInterfaceMap :: InterfaceMap -> IO ()
setInterfaceMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxInterfaceMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxInterfaceMap = m }
getInterfaceMap :: IO InterfaceMap
getInterfaceMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxInterfaceMap ctx
setInterfaceMethodMap :: InterfaceMethodMap -> IO ()
setInterfaceMethodMap m = do
- ctx <- get_mate_context >>= ptr2ctx
- ctx2ptr ctx { ctxInterfaceMethodMap = m } >>= set_mate_context
+ ctx <- readIORef mateCtx
+ writeIORef mateCtx $ ctx { ctxInterfaceMethodMap = m }
getInterfaceMethodMap :: IO InterfaceMethodMap
getInterfaceMethodMap = do
- ctx <- get_mate_context >>= ptr2ctx
+ ctx <- readIORef mateCtx
return $ ctxInterfaceMethodMap ctx