Re: [Boost-users] [signals] thread_safe_signals feature-complete

From: Timmo Stange (ts_at_[hidden])
Date: 2007-02-17 15:34:40

Frank Mori Hess wrote:

> connect also checks use_count() after locking the slot list mutex.  It 
> calls nolock_force_unique_connection_list(), which creates a (expensive, I 
> know) new copy of the slot list if it is already in use.

Hm, I found that function, but I don't see it getting called from
connect().

>> Another thing: The original signal is safe against deletion from
>> a slot invocation context. That's why it uses pimpl-Idiom.
> 
> Hmm, I didn't consider that case.  Since I've already got the pimpl there 
> for signal tracking, I suppose I just need to create a local copy of the 
> shared_ptr pimpl to prevent it from destructing in mid-invocation.

Yes.

Regards

Timmo Stange