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From: Peter Dimov (pdimov_at_[hidden])
Date: 2008-05-12 08:01:05

Anthony Williams:

> One way to do this is have the pool use packaged_tasks internally, and set
> a
> wait callback which is invoked when a thread waits on a future from a pool
> task. When the callback is invoked by the waiting thread (as part of the
> call
> to wait()), if that waiting thread is a pool thread, it can proceed as
> above.

It actually doesn't matter whether the waiting thread is a pool thread or
not. If the task hasn't been scheduled, it can be "stolen" and executed
synchronously from within the wait().

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