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type safe. This only works on recent gcc versions. With other
compilers it reverts to a non-typesafe cast
The patch also ensures that talloc_free() does not change error on
systems where free() can change errno
have a structure that references one of its parents, and a parent of
that parent is freed, then the whole structure should be freed, not
just the reference.
this was found by the change notify code, as a side effect of fixing
the memory leak yesterday
report from robert collins.
- updated talloc guide to reflect the fact that over the last few
months talloc overhead compared to malloc has dropped, probably due
to a bunch of small changes. It now costs about 4% more than malloc
on my box
These provide a way to find a parent of a ptr that is of a given
type. I will be using this to find the event context in smbd, relying
on the fact that everything is a child of the top level event
context. I did look at the alternatives, and found that passing the
event context to just about every call in smbd was getting way too
complex (we need to get it to anything that can do a ldb operation, as
that can invoke ldap).
So this method avoids a global, and seems to work nicely
the type names that talloc already keeps around for pointers, and
allows the user to type check void* private pointers. It can also be
used to implement polymorphism in C, as I'm sure someone would have
pointed out to me sooner or later :-)
- added #if TALLOC_DEPRECATED around the _p functions
- fixes the code that broke from the above
while doing this I fixed quite a number of places that were
incorrectly using the non type-safe talloc functions to use the type
safe ones. Some were even doing multiplies for array allocation, which
is potentially unsafe.
talloc_size() if you want the old behaviour.
I have kept talloc_p() as an alias for now. Once we change all calls
to be plain talloc() then we can remove it.
- added gcov flags to Makefile.talloc
- expanded talloc testsuite to add a test for realloc with a child ptr
- fixed a bug in talloc_realloc() with realloc of a ptr that has child ptrs
