FFI, safe vs unsafe

[Marcin 'Qrczak' Kowalczyk]

John Meacham <john at repetae.net> writes:

> Checking thread local state for _every_ foregin call is definitly
> not an option either. (but for specificially annotated ones it is
> fine.)

BTW, does Haskell support foreign code calling Haskell in a thread
which the Haskell runtime has not seen before? Does it work in GHC?

If so, does it show the same ThreadId from that point until OS
thread's death (like in Kogut), or a new ThreadId for each callback
(like in Python)?

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak at knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/