[Haskell-cafe] Cleaning up threads

[Gregory Collins]

Bas van Dijk <v.dijk.bas at gmail.com> writes:

> Don't forget to block asynchronous exception _before_ you fork in:
>
>>        tid <- forkIO (someWorkToDo `finally` putMVar mv ())
>
> Otherwise an asynchronous exception might be thrown to the thread
> _before_ the 'putMVar mv ()' exception handler is installed leaving
> your main thread in a dead-lock!

Good catch, thank you,

G
-- 
Gregory Collins <greg at gregorycollins.net>