John Meacham <[EMAIL PROTECTED]> writes:

> * Foreign concurrent calls, handle IO, and all IO actions that directly
>   interact with the world outside the current process all must be
>   yield-points. (in addition to any yield-points implied by the progress
>   guarentee)

If an IO call includes a long period of waiting, we don't only want
it to yield before or after it. We want it to allow other threads
to proceed during the whole wait.

-- 
   __("<         Marcin Kowalczyk
   \__/       [EMAIL PROTECTED]
    ^^     http://qrnik.knm.org.pl/~qrczak/
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