On 7/20/06, Evan Martin <[EMAIL PROTECTED]> wrote:
The tricky part is that to pass in Haskell functions, I need to use the FFI "wrapper" import, which means I need to later free them. But the only place I can free them is within the "free" callback, and I've just discovered this isn't allowed!
free_fcn is normally a static function. It shouldn't need to free itself. I'm thinking something like: type Callback = StablePtr (Callback, DataStructure)-> IO () foreign import ccall "wrapper" mkCallback :: Callback -> IO (FunPtr Callback) foreign export "free_fcn" free_fcn :: Callback free_fcn sp = do (cb, ds) <- deRefStablePtr sp freeStablePtr sp freeHaskellFunPtr cb -- Taral <[EMAIL PROTECTED]> "You can't prove anything." -- Gödel's Incompetence Theorem _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
