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*talloc_pool_objectcount(pool_tc) == 2 doesn't mean the one of the objects
is the pool itself! So we better check for == 1 and calculate the chunk count.
metze
The optimization of the object_count == 1 case should only happen
for when we're not destroying the pool itself. And it should only
happen if the pool itself is still valid.
If the pool isn't valid (it has TALLOC_FLAG_FREE),
object_count == 1 does not mean that the pool is the last object,
which can happen if you use talloc_steal/move() on memory
from the pool and then free the pool itself.
Thanks to Volker for noticing this!
metze
If we optimize on top of raw realloc() we need
TC_INVALIDATE_SHRINK_CHUNK together with TC_UNDEFINE_GROW_CHUNK
(with was missing and caused false positive valgrind warnings).
But that is really slow, as we do a lot of talloc_realloc calls in samba.
That's why we only to TC_UNDEFINE_SHRINK_CHUNK() for now.
metze
metze
Signed-off-By: Andrew Tridgell <tridge@samba.org>
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Fri Apr 8 10:15:41 CEST 2011 on sn-devel-104
- Fix some typos
- Document better the differences in the behaviour between talloc 1.X and 2.X.
Previously this seemed a bit spongy to me.
Reviewed-by: Jelmer + Tridge
Autobuild-User: Matthias Dieter Wallnöfer <mdw@samba.org>
Autobuild-Date: Mon Apr 4 11:05:42 CEST 2011 on sn-devel-104
this uses a temporary waf lock file to force the build directory
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Sat Jan 8 02:35:22 CET 2011 on sn-devel-104
this is the minimal fix for the problem Rusty found. I previously
thought that the best fix would be to change tc->parent to be valid
for all pointers, but that is expensive for realloc with large numbers
of child pointers, which is much more commmon than I expected it to
be.
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Wed Jan 5 07:22:27 CET 2011 on sn-devel-104
This should not change any behaviour - the intent is just to reduce
the "nuisance" warnings.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Mon Jan 3 11:12:39 CET 2011 on sn-devel-104
This function is a wrapper around waf's check_python_header.
It avoids searching more than once for the headers bringing a small
speed improvement and a better lisibility of the logs.
But it's mainly to avoid a nasty bug when python libraries are in path
pointed by python_LIBPL (ie. /usr/local/lib/python2.6/config/) instead
of python_LIBDIR (ie. /usr/local/lib).
On the first call waf will correctly find that in order to link with
python libs it needs to add -L$python_LIBPL.
But on the next calls of check_python_headers, waf will use both the
current library path value (ie. -L/usr/local/lib/python2.6/config) and
-L$python_LIBDIR (ie. /usr/local/lib/) which will make him beleive that
python libraries are in $python_LIBDIR which at the end will make the
final link test fails in check_python_headers as it will not use the
good directory.
So by avoiding calling check_python_headers more than once we avoid
making waf fooling itself.
we need the vnum for ABI checking for public libraries built as
private libraries when bundled
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Thu Dec 9 12:47:41 CET 2010 on sn-devel-104
This changes our version-script generation to use the ABI files that
are saved in git with each version number change of our public
libraries.
We use these ABI files to generate a linker version script that gives
the exact version number that each symbol was introduced. This
provides us with automatic fine grained symbol versioning.
Pair-Programmed-With: Jelmer Vernooij <jelmer@samba.org>
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
this is only set when rpath is used on install. It ensures that
applications that link against Samba libraries get the rpath right
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Wed Dec 8 12:46:00 CET 2010 on sn-devel-104
when this environment variable is set, talloc will fill freed memory
with the value from that environment variable. This can be used to
help find use after free bugs when valgrind is too slow to be used
this avoids using the non-portable shell command in makefiles
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Wed Nov 3 22:44:59 UTC 2010 on sn-devel-104
as these files are checked in, and the source might not be available.
Autobuild-User: Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date: Sun Oct 31 22:27:56 UTC 2010 on sn-devel-104
The new waf-based build system now has all the same functionality, and
the old build system has been broken for quite some time.
Autobuild-User: Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date: Sun Oct 31 02:01:44 UTC 2010 on sn-devel-104
We need to use 'libtalloc.so.1' as soname, otherwise the
compat library is useless.
metze
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Wed Oct 27 03:53:21 UTC 2010 on sn-devel-104
Those type of objects are referenced every time we assign
them to other py_talloc objects, which leads to runtime
warnings that we are trying to free an object with references
Wrap talloc_unlink() in SMB_ASSERT() to ensure we catch possible failure
Autobuild-User: Kamen Mazdrashki <kamenim@samba.org>
Autobuild-Date: Wed Oct 20 21:37:06 UTC 2010 on sn-devel-104
py_talloc_steal() was implemented as a macro which evaluated it's 2nd
argument twice. It was often called via a macro with a 2nd argument
that was a function call, for example an allocation in
py_talloc_new(). This meant it allocated memory twice, and leaked one
of them.
This re-implements py_talloc_steal() as a function, so that it only
does the allocation once.
