Re: [boost] Mini-proposal, simple boost/handle.hpp lib

From: Frank Mori Hess (frank.hess_at_[hidden])
Date: 2008-08-08 09:30:49

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On Friday 08 August 2008 09:25 am, Frank Mori Hess wrote:
> > boost::shared_ptr<void> s;
> > {
> >     int sockfd = socket(PF_INET, SOCK_STREAM, 0);
> >     if( sockfd != -1)
> >         s.reset(static_cast<void*>(sockfd), bind(close,
> > static_cast_<int>(_1)));
> > }
>
> make_handle() Emil's handle.hpp creates a shared_ptr which points at a copy
> of the handle, whose lifetime is also controlled by the shared_ptr.  So,
> you can access the handle through the shared_ptr as well as having the
> shared_ptr call the handle's cleanup function in its deleter.  But my
> attempt at using lambda stores a pointer to the original handle in the
> shared_ptr, which becomes invalid as soon as the original handle goes out
> of scope.

Oh, and now I realize you are solving the problem by copying the handle into a 
void*.  handle.hpp is still more useable though, since it could be used with 
any handle-like class, not just ints or similar that can copied into a void*.
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