Re: [boost] Probably bug in condition::timed_wait()

From: Alexander Terekhov (terekhov_at_[hidden])
Date: 2006-10-09 14:51:48

Roland Schwarz wrote:
> 
> Alexander Terekhov wrote:
> > Threads A and B waiting (A does timed wait), C changes something,
> > signals and enters wait expecting another state change followed by
> > signaling from either A or B (whichever gets the signal and makes
> > processing). If A times out and only re-signal, that signal can be
> > consumed by C as spurious wake. So broadcast() is needed to wake B
> > and let it do the job.
> 
> This can only happen if C is waiting on the same condition variable,
> isn't it? Then I would expect it is waiting on the inverted predicate

Yeah, sort of inverted.

> to be meaningful (e.g. consumer/producer). So this is just a special
> case of a condition sharing multiple predicates, right?

Right.

regards,
alexander.