Bulat Ziganshin bulat.ziganshin at
Fri Mar 24 08:51:36 EST 2006

Hello all,

Haskell implementation can have one of 4 levels of concurrency

1) no support at all
2) emulation of concurrency primitives ("blocked" ffi calls, MVar via
IORef and so on)
3) cooperative concurrency
4) preemptive concurrency

imho, it would be great to prohibit 1) and define requirements to the
2)-4) in the standard

Best regards,
 Bulat                            mailto:Bulat.Ziganshin at

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