Re: [Boost-users] [signals] thread-safe post-disconnect() cleanup

From: Peter Dimov (pdimov_at_[hidden])
Date: 2007-02-26 11:17:36

Timmo Stange wrote:

> Let me try to explain it from a different angle: What good does this
> copyable signal handle do?

Same as all C++ handles; prevent dangling references. C++ handles are the 
equivalent of Java references. Value semantics are better when they're 
possible, but if the alternative is noncopyability and raw pointers, I 
always prefer the handle approach. Not all C++ programmers agree. A 
construct on which Java is built upon must be evil. :-)

That said, in this case I think that the hybrid approach is better than the 
two other alternatives.