Re: [boost] [Interprocess::Semaphore] Deadlock on more producers - one consumer problem

Subject: Re: [boost] [Interprocess::Semaphore] Deadlock on more producers - one consumer problem
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2009-06-20 15:39:51

Cosimo Calabrese wrote:

> inline void interprocess_semaphore::post()
> {
>    scoped_lock<interprocess_mutex> lock(m_mut);
>    if(m_count == 0){
>       m_cond.notify_one();
>    }
>    ++m_count;
> }

Yes, I think you are right. post() should unconditionally notify_one(), 
otherwise, we could post() several times and only wake up one thread.

Can you test your code removing the m_count == 0 condition?

Thanks,

Ion