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the % coverage in terms of lines of code of a test suite. I thought a
good first place to start with gcov was the talloc test suite. When I
started the test suite covered about 60% of all lines of code in
talloc.c, and now it covers about 99%. The only lines not covered are
talloc corruption errors, as that would cause smb_panic() to fire.
It will be interesting to try gcov on the main Samba test suite for
smbd. We won't achieve 100% coverage, but it would be nice to get to
90% or more.
I also modified the talloc.c sources to be able to be build standalone, using:
gcc -c -D_STANDALONE_ -Iinlcude lib/talloc.c
that should make it much easier to re-use talloc in other projects
(This used to be commit 8d4dc99b82)
- made the LOCAL-TALLOC smbtorture test much stricter, checking that
block counts for every pointer are correct after every operation
(This used to be commit 18d3e2647f)
- added documentation for talloc_unreference()
- made the abandoned child logic in talloc_free() clearer and more consistent
(This used to be commit a87584c8e3)
MEASURING TALLOC VS MALLOC SPEED
talloc: 279154 ops/sec
malloc: 318758 ops/sec
which I think is an acceptable overhead for the increased functionality
(This used to be commit 91669ea830)
The problem was that the simple "uint_t ref_count;" in a talloc chunk
did not give enough information. It told us that a pointer was
referenced more than once, but it didn't say who it was referenced
by. This means that when the pointer was freed we had no sane way to
clean up the reference.
I have now replaced ref_count with a "refs" list, which means that
references point to the pointer, and the pointer has a linked list of
references. So now we can cleanup from either direction without losing track of anything.
I've also added a LOCAL-TALLOC smbtorture test that tests talloc
behaviour for some common uses.
(This used to be commit 911a8d590c)
I had previously thought this was unnecessary, as windows doesn't use
standards compliant UTF-16, and for filesystem operations treats bytes
as UCS-2, but Bjoern Jacke has pointed out to me that this means we
don't correctly store extended UTF-16 characters as UTF-8 on
disk. This can be seen with (for example) the gothic characters with
codepoints above 64k.
This commit also adds a LOCAL-ICONV torture test that tests the first
1 million codepoints against the system iconv library, and tests 5
million random UTF-16LE buffers for identical error handling to the
system iconv library.
the lib/iconv.c changes need backporting to samba3
(This used to be commit 756f28ac95)
