Benno I think that both ought to be ok, but I'd welcome other input.
GHC.runGHC calls initGhcMonad, which allocates an entirely new session (in newHscEnv). So the two will work entirely independently. Unfortunately that's not 100% true. If you search for GLOBAL_VAR you'll see a handful of disgusting global state variables, and they *will* be shared between GHC sessions. There really aren't many. I'd love someone to eliminate them! (NB ghc-devs) Simon From: ghc-devs [mailto:[email protected]] On Behalf Of Benno Fünfstück Sent: 07 January 2014 13:56 To: ghc-devs Subject: GHC API: Using runGhc twice or from multiple threads? Hello, is the following safe to do? main = do runGhc libdir $ do ... runGhc libdir $ do ... Or will this cause trouble? Is there state that is shared between the two calls? And what about this one: main = do forkIO $ runGhc libdir $ do ... forkIO $ runGhc libdir $ do ...
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