On 10/23/10 7:54 AM, John Lato wrote:
On Fri, Oct 22, 2010 at 6:16 PM, Bulat Ziganshin <bulat.zigans...@gmail.com <mailto:bulat.zigans...@gmail.com>> wrote:Hello John, Monday, October 18, 2010, 8:15:42 PM, you wrote: > If anyone is listening, I would very much like for there to be a > mechanism by which external functions can be called "unsafe"-ly, but > without blocking all other Haskell threads. I have code that does this: +RTS -N2This doesn't work, which was why the OP asked in the first place. When a thread calls an unsafe foreign function, it blocks everything until that function returns.
Is that true? The last time we discussed this in Haskell Cafe the conclusion I drew from the discussion was that unsafe foreign functions block the current thread but not any other thread.
Cheers, Greg
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