20 Feb
2010
20 Feb
'10
9:52 a.m.
Sorry I start spin-off of thread but all over the haskell code is idiom: throwErrorIfMinus1_ $ someCode args However this code is dependent on errno, which is thread dependent. Is GHC making sure that errno set from C call is propagated back into correct thread? Are there any requirements regarding safeness/unsafeness of such propagation (and if there are shouldn't they be added to various places where it is simply said that safe call simply does not call back into Haskell). Regards