Re: signalling a condvar from inside vs. signalling a condvar von outside

On 4/19/2025 10:45 PM, Bonita Montero wrote:

Am 20.04.2025 um 07:43 schrieb Chris M. Thomasson:

On 4/19/2025 9:29 PM, Bonita Montero wrote:

That's what I do after pushing n items to the queue:
>
             if( !m_nWaiting )
                 return;
             if( n >= m_nWaiting )
                 m_cv.notify_all();
             else
                 do
                     m_cv.notify_one();
                 while( --n );
>
>
What's more efficient, notifying all threads individually or
notifying all threads at once ?

>
again, only broadcast hen you have to! wow.

 You're simply silly. If I have more items in the queue
than waiting threads a broadcast is more efficient.

Barf! Are you daft? Only broadcast when you need to and well, try to strive to do it outside of the locked region, when you can. wow. Daft Punk?