[LTP] [PATCH v2] futex_waitv01: Add test verifies EAGIN/ETIMEDOUT

[Cyril Hrubis]

Hi!
> +static void test_mismatch_between_uaddr_and_val(void)
> +{
> +	struct timespec to;
> +
> +	waitv->uaddr = (uintptr_t)futex;
> +	waitv->flags = FUTEX_32 | FUTEX_PRIVATE_FLAG;
> +	waitv->val = 1;
> +
> +	init_timeout(&to);
> +
> +	TST_EXP_FAIL(futex_waitv(waitv, 1, 0, &to, CLOCK_MONOTONIC), EAGAIN,
> +			"futex_waitv mismatch between value of uaddr and val");

The init_timeout(&to) inits the timeout with CLOCK_REALTIME time, so we
should pass CLOCK_REALTIME to the futex_waitv() as well.
 
> +}
> +
> +static void test_timeout(void)
> +{
> +	struct timespec to;
> +
> +	waitv->uaddr = (uintptr_t)futex;
> +	waitv->flags = FUTEX_32 | FUTEX_PRIVATE_FLAG;
> +	waitv->val = 0;
> +
> +	init_timeout(&to);

I guess that we can as well just do:

SAFE_CLOCK_GETTIME(CLOCK_REALTIME, &to);

Which would make the test much faster as we will not have to wait for
one second for the timeout.

Eventually we can as well add a few miliseconds to the timeout, we do
have a nice functions to work with different time structures in this
case we can just do:

	to = tst_timespec_add_us(to, 10000);

To add 10ms to the timeout.

> +	TST_EXP_FAIL(futex_waitv(waitv, 1, 0, &to, CLOCK_REALTIME), ETIMEDOUT,
> +			"futex_waitv timeout");
> +
> +}
> +
>  static void cleanup(void)
>  {
>  	free(futex);
> @@ -126,6 +154,8 @@ static void run(void)
>  	test_null_waiters();
>  	test_invalid_clockid();
>  	test_invalid_nr_futexes();
> +	test_mismatch_between_uaddr_and_val();
> +	test_timeout();
>  }
> 
>  static struct tst_test test = {
> --
> 2.17.1
> 
> 
> -- 
> Mailing list info: https://lists.linux.it/listinfo/ltp

-- 
Cyril Hrubis
chrubis@suse.cz