[Haskell-cafe] two problems with Data.Binary and Data.ByteString
bos at serpentine.com
Tue Aug 12 20:45:19 EDT 2008
On Tue, Aug 12, 2008 at 5:34 PM, Tim Newsham <newsham at lava.net> wrote:
> I tried to force the data with:
> loadState db = do
> d <- decode <$> B.readFile stateFile
> let force = sum $ M.elems $ M.size `fmap` d
> force `seq` atomically $ writeTVar db d
> and I get the same error when trying to writeFile after doing
> a loadState.
What happens if you simply print the number of elements in the map?
Forcing its spine is all you should need.
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