Re: [PATCH v3 05/24] liblockdep: Rename "trywlock" into "trywrlock"

From: Sasha Levin
Date: Thu Dec 13 2018 - 14:41:48 EST


On Tue, Dec 11, 2018 at 09:38:31AM -0800, Bart Van Assche wrote:
On Tue, 2018-12-11 at 12:19 -0500, Sasha Levin wrote:
On Thu, Dec 06, 2018 at 05:11:29PM -0800, Bart Van Assche wrote:
> This patch avoids that the following compiler warning is reported while
> compiling the lockdep unit tests:
>
> include/liblockdep/rwlock.h: In function 'liblockdep_pthread_rwlock_trywlock':
> include/liblockdep/rwlock.h:66:9: warning: implicit declaration of function 'pthread_rwlock_trywlock'; did you mean 'pthread_rwlock_trywrlock'? [-Wimplicit-function-declaration]
> return pthread_rwlock_trywlock(&lock->rwlock) == 0 ? 1 : 0;
> ^~~~~~~~~~~~~~~~~~~~~~~
> pthread_rwlock_trywrlock

Hm, I'm not sure why you're seeing that error (I'm not). We define
pthread_rwlock_trywlock() in:

include/liblockdep/rwlock.h:static inline int liblockdep_pthread_rwlock_trywlock(liblockdep_pthread_rwlock_t *lock)

All the tests also seem to pass for me. Did you see failures on your
end?

What I saw is that due to the typo that is fixed by this patch that linking
of the tests failed and that the error message that was reported because
starting the tests failed made the tests pass due to the following line in
run_tests.sh:

if [ $(timeout 1 ./lockdep ./tests/$testname 2>&1 | wc -l) -gt 0 ]; then

Ah, I see. Thank you!

--
Thanks,
Sasha