the gunk:

A persistent storage method, needs to know about "struct object" in
addition to regular storage allocations, in order to track ttl and
ban information etc.

Therefore, when we create an object, we call into the stevedore.c
to do so with STV_NewObject(), it picks an stevedore, and calls
the ->allocobj() method, which will allocate some storage, call
STV_MkObject() to turn it into an object, which can then be
fondled, before passing it back to STV_NewObject() an from there
to cache_center.c::cnt_fetch().

Non-persistent stevedores, don't define ->allocobj() and when
initialized by stevedore.c, get a suitable default function.

XXX: next steps, remove objcore argument from stv->alloc() and
remove stv->object() method entirely, now that we have a proper
calling order.





git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5558 d4fa192b-c00b-0410-8231-f00ffab90ce4