The precise meaning of talloc_tos()
realrichardsharpe at gmail.com
Sat Apr 7 13:41:23 MDT 2012
I noticed this comment in lib/util/talloc_stack.h
* Implement a stack of talloc frames.
* When a new talloc stackframe is allocated with talloc_stackframe(), then
* the TALLOC_CTX returned with talloc_tos() is reset to that new
* frame. Whenever that stack frame is TALLOC_FREE()'ed, then the reverse
* happens: The previous talloc_tos() is restored.
My question hinges around the use of the word reset above in "the
TALLOC_CTX returned with talloc_tos() is *reset* to that new frame."
I think that the code in talloc_stackframe.c shows that reset is the
wrong word there and it simply returns the context associated with the
current top of the talloc stack or a new one if no stack yet exists,
however, given my recent demonstrated ability to mis-read code, can
someone confirm :-)
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