[omniORB] Why does _this() increment ref count on servant for the first time it's called?

[Clarke Brunt]

omniorb-list-bounces at omniorb-support.com wrote:
> We are debugging the reference counting on our servants and
> ran into a
> peculiar problem with _this() function.  Why does _this() increment
> the reference count on the servant for the first time the function is
> called, and then if we call _this() again on the same servant
> subsequently, it does not increment the reference count
> again?  Is this
> the correct behavior that we are seeing?
> 
> Our servants derive from RefCountServantBase because we want them to
> go away when no clients need them anymore.  We are very careful with
> object reference counts and make sure that they are correct for the
> number of clients.

Quick answer without me spending time to look up the details: it because
you are using 'implicit activation' and the first time you use _this(),
the servant is activated, and the counted reference to it is from the
POA. When you call it again, the servant has already been activated, so
no extra reference is needed.

-- 
Clarke Brunt, Principal Software Engineer, Trafficmaster


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