From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: Lukasz Majewski <lukma@denx.de>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH v2 1/2] tst: Add test for ntp_gettime
Date: Mon, 22 Mar 2021 17:22:06 -0300 [thread overview]
Message-ID: <b86e8163-2b94-35dc-b3b2-67a4fe225f79@linaro.org> (raw)
In-Reply-To: <20210310130056.23926-1-lukma@denx.de>
On 10/03/2021 10:00, Lukasz Majewski wrote:
> This code provides test to check if time on target machine is properly
> read via ntp_gettime syscall.
>
> ---
> Changes for v2:
> - Check time before and after calling ntp_gettime{x} to avoid situation
> when seconds rollover between call to ntp_gettime and wrapper providing
> current time.
LGTM with the format fixes below.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
> ---
> sysdeps/unix/sysv/linux/Makefile | 2 +-
> sysdeps/unix/sysv/linux/tst-ntp_gettime.c | 56 +++++++++++++++++++++++
> 2 files changed, 57 insertions(+), 1 deletion(-)
> create mode 100644 sysdeps/unix/sysv/linux/tst-ntp_gettime.c
>
> diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
> index b8c1caa505..8a07870cb4 100644
> --- a/sysdeps/unix/sysv/linux/Makefile
> +++ b/sysdeps/unix/sysv/linux/Makefile
> @@ -113,7 +113,7 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
> tst-tgkill tst-sysvsem-linux tst-sysvmsg-linux tst-sysvshm-linux \
> tst-timerfd tst-ppoll tst-futimens tst-utime tst-utimes \
> tst-clock_adjtime tst-adjtimex tst-ntp_adjtime tst-futimes \
> - tst-lutimes
> + tst-lutimes tst-ntp_gettime
> tests-internal += tst-ofdlocks-compat tst-sigcontext-get_pc
> tests-time64 += \
> tst-futimes-time64\
Ok.
> diff --git a/sysdeps/unix/sysv/linux/tst-ntp_gettime.c b/sysdeps/unix/sysv/linux/tst-ntp_gettime.c
> new file mode 100644
> index 0000000000..6cd3a0ec2c
> --- /dev/null
> +++ b/sysdeps/unix/sysv/linux/tst-ntp_gettime.c
> @@ -0,0 +1,56 @@
> +/* Test for ntp_gettime
Missing period.
> + 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 <stdlib.h>
> +#include <sys/timex.h>
> +#include <support/check.h>
> +#include <support/xtime.h>
> +
> +#ifndef NTP_GETTIME_SYSCALL
> +# define NTP_GETTIME_SYSCALL ntp_gettime
> +#endif
> +
> +#define STR(__s) #__s
> +
> +static int
> +do_test (void)
> +{
> + struct timespec tv_before_ntp, tv_after_ntp;
> + struct ntptimeval ntv;
> +
> + /* To prevent seconds rollover (which is very unlikely though),
> + loop until we do match seconds values before and after
> + call to ntp_gettime. */
> + do {
> + tv_before_ntp = xclock_now (CLOCK_REALTIME);
> +
> + int ret = NTP_GETTIME_SYSCALL (&ntv);
> + if (ret == -1)
> + FAIL_EXIT1 (STR(NTP_GETTIME_SYSCALL)" failed: %m\n");
> +
> + tv_after_ntp = xclock_now (CLOCK_REALTIME);
> + } while (tv_after_ntp.tv_sec != tv_before_ntp.tv_sec);
The correct indentation is:
do
{
}
while (...)
The test looks ok.
> +
> + if (tv_after_ntp.tv_sec != ntv.time.tv_sec)
> + FAIL_EXIT1 (STR(NTP_GETTIME_SYSCALL)" provided wrong time!\n");
Use TEST_COMPARE.
> +
> + return 0;
> +}
> +
> +#include <support/test-driver.c>
>
prev parent reply other threads:[~2021-03-22 20:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-10 13:00 Lukasz Majewski
2021-03-10 13:00 ` [PATCH v2 2/2] tst: Add test for ntp_gettimex Lukasz Majewski
2021-03-22 20:23 ` Adhemerval Zanella
2021-03-17 12:23 ` [PATCH v2 1/2] tst: Add test for ntp_gettime Lukasz Majewski
2021-03-22 20:22 ` Adhemerval Zanella [this message]
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