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This version does the following:
1) talloc_free(), talloc_realloc() and talloc_steal() lose their
(redundent) first arguments
2) you can use _any_ talloc pointer as a talloc context to allocate
more memory. This allows you to create complex data structures
where the top level structure is the logical parent of the next
level down, and those are the parents of the level below
that. Then destroy either the lot with a single talloc_free() or
destroy any sub-part with a talloc_free() of that part
3) you can name any pointer. Use talloc_named() which is just like
talloc() but takes the printf style name argument as well as the
parent context and the size.
The whole thing ends up being a very simple piece of code, although
some of the pointer walking gets hairy.
So far, I'm just using the new talloc() like the old one. The next
step is to actually take advantage of the new interface
properly. Expect some new commits soon that simplify some common
coding styles in samba4 by using the new talloc().
(This used to be commit e35bb094c52e550b3105dd1638d8d90de71d854f)
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(This used to be commit 2986c5f08c8f0c26a2ea7b6ce20aae025183109f)
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(This used to be commit af6f1f8a01bebbecd99bc8c066519e89966e65e3)
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(This used to be commit 0e5517d937a2eb7cf707991d1c7498c1ab456095)
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(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)
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