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authorAndrew Tridgell <tridge@samba.org>2004-09-27 05:13:00 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 12:59:20 -0500
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parent351ca44e8b3ea8336abba8215dfc1ccb42458384 (diff)
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r2675: added a convenience function
void *talloc_reference(const void *context, const void *ptr); this function makes a secondary reference to ptr, and hangs it off the given context. This greatly simplifies some of the current reference counting code in the samr server and I suspect it will be widely used in other places too. the way you use it is like this: domain_state->connect_state = talloc_reference(domain_state, connect_state); that makes the element connect_state of domain_state a secondary reference to connect_state. The connect_state structure will then only be freed when both domain_state and the original connect_state go away, allowing you to free them independently and in any order. you could do this alrady using a talloc destructor, and that is what the samr server did previously, but that meant this construct was being reinvented in several places. So this convenience function sets up the destructor for you, giving a much more convenient and less error prone API. (This used to be commit dc5315086156644fad093cbe6b02d999adba8540)
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