[gmpi] Re: Linux C++ question

On Fri, Feb 25, 2005 at 10:09:14AM +1300, Jeff McClintock wrote:
> When does that object get deleted?

When the refcount hits 0.  It doesn't have to be function-scoped, it could
easily be file scoped, so the ::Release method has direct access.

> >I don't see how those two are related?  It's easy enough to share things
> >between instances.  Whether an object is truly static or is just wrapped
> >up doesn't matter.
> >
> >Consider (roughly from GMPI factory)
> >
> > GMPI_Factory* Factory(void)
> > {
> >     static GMPI_Factory the_factory;
> >     return &the_factory;
> > }
> >
> >vs
> >
> > GMPI_Factory* Factory(void)
> > {
> >     static GMPI_Factory* the_factory;
> >     if (the_factory == NULL) {
> >             the_factory = new GMPI_Factory();
> >     }
> >     return the_factory;
> > }
> >
> >
> >The overhead is a branch.
> >
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> >
> >
> 
> 
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-- 
Tim Hockin
thockin@xxxxxxxxxx
Soon anyone who's not on the World Wide Web will qualify for a government 
subsidy for the home-pageless.

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