Re: [Boost-users] [signals] sandbox version status

From: Timmo Stange (ts_at_[hidden])
Date: 2007-02-11 18:41:18

Frank Mori Hess wrote:

>>> However, you should be able to get concurrent signal invocation even
>>> with a single mutex once boost supports a recursive_read_write_mutex,
>>> right?
>> Yes, that would be possible at the expense of copying the combiner for
>> the invocation, which is acceptable and parameterizable through the
>> ThreadingModel anyway.
> 
> I copy a shared_ptr to the combiner in the invocation, so a new full copy 
> only gets made in set_combiner().

Yes, I saw that. You probably know that already, but the shared_ptr
reference counting is a relatively expensive operation. Copying a
last_value<> instance locally is a no-op on the other hand.

Regards

Timmo Stange