Re: How to wait for multiple threads simultaneously?

On Feb 13, 11:53 pm, Rainer Weikusat <rweiku...@xxxxxxxxxxx> wrote:

But they typically don't loop until something happens. This is just a
special case the code needs to be prepared for, while it is the exact
behaviour of a spin lock.

I think that's based on the mistaken assumption that the only reason
the loop would run more than once is in the rare case where there's a
spurious wakeup. But that's not true. One common reason you would loop
on a pthread_cond_wait is when the condition may have been consumed by
other threads.

That is, spinning is part of the normal synchronization process. It's
not just a workaround for a bizarre side-effect.

DS
.

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