Re: [Boost-users] [Boost.Condition]

From: Manuel Jung (gzahl_at_[hidden])
Date: 2007-03-06 12:10:52

Gottlob Frege wrote:

> On 3/5/07, Manuel Jung <gzahl_at_[hidden]> wrote:
>> Hi,
>>
>> I would like to know the waiting threads for a condition. Is there a way
>> to calculate the number of "wait()"s which would be affected by a
>> notifiy_all()?
>> Maybe nobody needed this before? Or isn't this possible to implement such
>> a thing with boost::condition and i have to count the waiting threads on
>> the application level?
>>
> 
> When would this be useful?  Note that as soon as you had that info, it
> would be out of date:

Hi,
It wouldnt matter, if its not exact. it is just for monitoring, so i can
watch how many threads a waiting approximatly. 
> 
> int count = condition.number_of_waiters();  // eg: returns 5
>           // ...another thread starts waiting here
> condition.notify_all();                                 // and 6
> threads 'notified'

Ill use a "boost::condition::wait" wrapper to count it.

Bye
Manuel Jung