Re: [Boost-users] condition_variable::timed_wait doesn't wait

Subject: Re: [Boost-users] condition_variable::timed_wait doesn't wait
From: Roman Perepelitsa (roman.perepelitsa_at_[hidden])
Date: 2009-03-10 04:09:07

2009/3/9 tom fogal <tfogal_at_[hidden]>

> I haven't used boost's locking mechanisms yet, but POSIX condvars
> don't protect against spurious wakes.  Thus,
>
> [snip]
> >   //wait for an answer..
> >   bool ready = _cond.timed_wait(lock, xt,
> boost::lambda::var(_data_ready));
>
> you probably want this in a loop,
>
>    while(!_data_ready) {
>        _cond.timed_wait(... _data_ready);
>    }
>

timed_wait with predicate (that's what OP used) does exactly this, it waits
on condvar until predicate is satisfied. So problem is in some other place.

Roman.