Dear Community,
> This code brings test to check if time on target machine is properly
> adjusted.
> The time is altered only when cross-test-ssh.sh is executed with
> --allow-time-setting flag
> As the delta added to CLOCK_REALTIME is only 1ms the original time is
> not restored and further tests are executed with this bias.
>
Gentle ping on this patchset.
> ---
> Changes for v2:
> - Use timespec_sub and support_timespec_check_in_range to check if
> time has been adjusted properly
> ---
> time/Makefile | 2 +-
> time/tst-clock_adjtime.c | 59
> ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 60
> insertions(+), 1 deletion(-) create mode 100644
> time/tst-clock_adjtime.c
>
> diff --git a/time/Makefile b/time/Makefile
> index b6f0969f3d..fc6415bf8a 100644
> --- a/time/Makefile
> +++ b/time/Makefile
> @@ -51,7 +51,7 @@ tests := test_time clocktest tst-posixtz
> tst-strptime tst_wcsftime \ tst-clock tst-clock2 tst-clock_nanosleep
> tst-cpuclock1 \ tst-adjtime tst-ctime tst-difftime tst-mktime4
> tst-clock-y2038 \ tst-clock2-y2038 tst-cpuclock1-y2038
> tst-clock_nanosleep-y2038 \
> - tst-clock_settime
> + tst-clock_settime tst-clock_adjtime
>
> include ../Rules
>
> diff --git a/time/tst-clock_adjtime.c b/time/tst-clock_adjtime.c
> new file mode 100644
> index 0000000000..f31a4058ec
> --- /dev/null
> +++ b/time/tst-clock_adjtime.c
> @@ -0,0 +1,59 @@
> +/* Test for clock_adjtime
> + 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
> + . */
> +
> +#include
> +#include
> +#include
> +#include
> +#include
> +#include
> +
> +static int
> +do_test (void)
> +{
> + struct timespec tv_then, tv_now;
> + struct timex delta;
> +
> + /* Check if altering target time is allowed. */
> + if (getenv (SETTIME_ENV_NAME) == NULL)
> + FAIL_UNSUPPORTED ("clock_adjtime is executed only when "\
> + SETTIME_ENV_NAME" is set\n");
> +
> + tv_then = xclock_now (CLOCK_REALTIME);
> +
> + /* Setup time value to adjust - 1 ms. */
> + delta.time.tv_sec = 0;
> + delta.time.tv_usec = 1000;
> + delta.modes = ADJ_SETOFFSET;
> +
> + int ret = clock_adjtime (CLOCK_REALTIME, &delta);
> + if (ret == -1)
> + FAIL_EXIT1 ("clock_adjtime failed: %m\n");
> +
> + tv_now = xclock_now (CLOCK_REALTIME);
> +
> + /* Check if clock_adjtime adjusted the system time. */
> + struct timespec r = timespec_sub (tv_now, tv_then);
> + TEST_COMPARE (support_timespec_check_in_range
> + ((struct timespec) { 0, 1000000 }, r, 0.0009,
> 0.0011), 0); +
> +
> + return 0;
> +}
> +
> +#include
Best regards,
Lukasz Majewski
--
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@denx.de