vhaudiquet/u-boot-krane
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

test: lib: add uthread_mutex test

Browse Source 
Add a test for uthread mutexes.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
This commit is contained in:
Jerome Forissier
2025-04-23 13:19:44 -06:00
committed by Tom Rini
parent 67b1b1ae19
commit dbb22f541a
1 changed files with 66 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/lib/uthread.c
+66
View File
@@ -78,3 +78,69 @@ static int uthread(struct unit_test_state *uts)
return 0;
}
LIB_TEST(uthread, 0);
struct mw_args {
struct unit_test_state *uts;
struct uthread_mutex *m;
int flag;
};
static int mutex_worker_ret;
static int _mutex_worker(struct mw_args *args)
{
struct unit_test_state *uts = args->uts;
ut_asserteq(-EBUSY, uthread_mutex_trylock(args->m));
ut_assertok(uthread_mutex_lock(args->m));
args->flag = 1;
ut_assertok(uthread_mutex_unlock(args->m));
return 0;
}
static void mutex_worker(void *arg)
{
mutex_worker_ret = _mutex_worker((struct mw_args *)arg);
}
/*
* thread_mutex() - testing uthread mutex operations
*
*/
static int uthread_mutex(struct unit_test_state *uts)
{
struct uthread_mutex m = UTHREAD_MUTEX_INITIALIZER;
struct mw_args args = { .uts = uts, .m = &m, .flag = 0 };
int id;
int i;
id = uthread_grp_new_id();
ut_assert(id != 0);
/* Take the mutex */
ut_assertok(uthread_mutex_lock(&m));
/* Start a thread */
ut_assertok(uthread_create(NULL, mutex_worker, (void *)&args, 0,
id));
/* Let the thread run for a bit */
for (i = 0; i < 100; i++)
ut_assert(uthread_schedule());
/* Thread should not have set the flag due to the mutex */
ut_asserteq(0, args.flag);
/* Release the mutex */
ut_assertok(uthread_mutex_unlock(&m));
/* Schedule the thread until it is done */
while (uthread_schedule())
;
/* Now the flag should be set */
ut_asserteq(1, args.flag);
/* And the mutex should be available */
ut_assertok(uthread_mutex_trylock(&m));
ut_assertok(uthread_mutex_unlock(&m));
/* Of course no error are expected from the thread routine */
ut_assertok(mutex_worker_ret);
return 0;
}
LIB_TEST(uthread_mutex, 0);