On 07 November 2005 14:02, Bulat Ziganshin wrote:

Hello Simon,

Monday, November 07, 2005, 4:16:54 PM, you wrote:

...

Yes, mallocForeignPtr's are implemented using pinned GC'd memory, with no finalizer (unless you add one). That's why they're nice and fast.

Simon, can you please write some docs about all these foreign stuff and their interaction with pure Haskell code? i see some bits of this information in these newsgroups regularly (for example, are you remember discussion about using lots of hashtables in program?), but there is no definitive source

there is no need to write full-fledged doc right now, just "implementation notes" as the list of peculiarities will be great for the start

You're right, it would be good to have this folklore stuff written down. I've added some notes to the mallocForeignPtr docs for now. Cheers, Simon