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From: Johan Torp (johan.torp_at_[hidden])
Date: 2007-09-11 16:20:48
I'd love to get some feedback on a tiny utility I've been thinking about.
I oftenly create small objects which I just want to keep alive as long
as some other object exists. It is often RAII objects, but many other
types of small classes fall into this category.
A simple "user heap" could take ownership of such instances and delay
deletion until itself is deleted. The basic interface of - let's call
it heap - would look like this:
template<class T> T& heap::put(T*);
Example usage:
boost::shared_ptr<SomeView> view;
// Keep controller alive while view exits
view->get_heap().put(new SomeController(*view));
For classes with loads of RAII object members, usage could look like this:
class Foo {
Foo() {
keep_alive_.put(new RAIIBar(...));
keep_alive_.put(new RAIIWhatever(...));
}
private:
heap keep_alive_;
};
Support should be added for putting shared_ptrs and auto_ptrs. I have
a wide variety of naming suggestions and an extended interface for
premature deletion but I'll save those for a later post.
What do you think? Please give me your thoughts.
Johan
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