[PATCH v2] tst: Provide test for sched_rr_get_interval

[Andreas Schwab]

On Feb 08 2021, Lukasz Majewski wrote:

> diff --git a/posix/tst-sched_rr_get_interval.c b/posix/tst-sched_rr_get_interval.c
> new file mode 100644
> index 0000000000..d632e03655
> --- /dev/null
> +++ b/posix/tst-sched_rr_get_interval.c
> @@ -0,0 +1,45 @@
> +/* Test for sched_rr_get_interval
> +   Copyright (C) 2021 Free Software Foundation, Inc.
> +   This file is part of the GNU C Library.
> +
> +   The GNU C Library is free software; you can redistribute it and/or
> +   modify it under the terms of the GNU Lesser General Public
> +   License as published by the Free Software Foundation; either
> +   version 2.1 of the License, or (at your option) any later version.
> +
> +   The GNU C Library is distributed in the hope that it will be useful,
> +   but WITHOUT ANY WARRANTY; without even the implied warranty of
> +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> +   Lesser General Public License for more details.
> +
> +   You should have received a copy of the GNU Lesser General Public
> +   License along with the GNU C Library; if not, see
> +   <https://www.gnu.org/licenses/>.  */
> +
> +#include <time.h>
> +#include <sched.h>
> +#include <support/check.h>
> +
> +static int
> +do_test (void)
> +{
> +  struct timespec ts[2] = { { -1, -1 }, { -1, -1 } };
> +  const struct sched_param param = {
> +    .sched_priority = sched_get_priority_max (SCHED_RR) - 10,
> +  };
> +  int result = sched_setscheduler (0, SCHED_RR, &param);
> +
> +  if (result != 0)
> +    FAIL_UNSUPPORTED ("*** sched_setscheduler error: %m\n");
> +
> +  TEST_COMPARE (sched_rr_get_internal (0, ts), 0);
> +
> +  /* Check if returned time values are correct.  */
> +  TEST_VERIFY_EXIT (ts[0].tv_sec < 0);
> +  TEST_VERIFY_EXIT (ts[0].tv_nsec < 0 || ts[0].tv_nsec >= 1000000000);
> +  TEST_VERIFY_EXIT (ts[1].tv_sec != -1 || ts[1].tv_nsec != -1);

There should be no need to exit immediately on failure.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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