From: Richard Palethorpe <rpalethorpe@suse.de>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH 6/8] syscalls/clock_gettime03: Add basic time namespace test
Date: Mon, 09 Mar 2020 14:23:29 +0100 [thread overview]
Message-ID: <87imjdfyr2.fsf@our.domain.is.not.set> (raw)
In-Reply-To: <20200305134834.16736-7-chrubis@suse.cz>
Hi,
Cyril Hrubis <chrubis@suse.cz> writes:
> Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
> ---
> runtest/containers | 1 +
> runtest/syscalls | 1 +
> .../kernel/syscalls/clock_gettime/.gitignore | 1 +
> .../syscalls/clock_gettime/clock_gettime03.c | 113 ++++++++++++++++++
> 4 files changed, 116 insertions(+)
> create mode 100644 testcases/kernel/syscalls/clock_gettime/clock_gettime03.c
>
> diff --git a/runtest/containers b/runtest/containers
> index 8100cd2bc..1006d8d35 100644
> --- a/runtest/containers
> +++ b/runtest/containers
> @@ -89,3 +89,4 @@ userns07 userns07
> # time namespaces
> sysinfo03 sysinfo03
> clock_nanosleep03 clock_nanosleep03
> +clock_gettime03 clock_gettime03
> diff --git a/runtest/syscalls b/runtest/syscalls
> index d19ae0041..778f722a3 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -91,6 +91,7 @@ clock_nanosleep03 clock_nanosleep03
>
> clock_gettime01 clock_gettime01
> clock_gettime02 clock_gettime02
> +clock_gettime03 clock_gettime03
> leapsec01 leapsec01
>
> clock_settime01 clock_settime01
> diff --git a/testcases/kernel/syscalls/clock_gettime/.gitignore b/testcases/kernel/syscalls/clock_gettime/.gitignore
> index ba471c859..9d06613b6 100644
> --- a/testcases/kernel/syscalls/clock_gettime/.gitignore
> +++ b/testcases/kernel/syscalls/clock_gettime/.gitignore
> @@ -1,3 +1,4 @@
> clock_gettime01
> clock_gettime02
> +clock_gettime03
> leapsec01
> diff --git a/testcases/kernel/syscalls/clock_gettime/clock_gettime03.c b/testcases/kernel/syscalls/clock_gettime/clock_gettime03.c
> new file mode 100644
> index 000000000..533b3898e
> --- /dev/null
> +++ b/testcases/kernel/syscalls/clock_gettime/clock_gettime03.c
> @@ -0,0 +1,113 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> +
> + Copyright (c) 2020 Cyril Hrubis <chrubis@suse.cz>
> +
> + */
> +/*
> +
> + Basic test for timer namespaces.
> +
> + After a call to unshare(CLONE_NEWTIME) a new timer namespace is created, the
> + process that has called the unshare() can adjust offsets for CLOCK_MONOTONIC
> + and CLOCK_BOOTTIME for its children by writing to the '/proc/self/timens_offsets'.
> +
> + The child processes also switch to the initial parent namespace and checks
> + that the offset is set to 0.
> +
> + */
> +
> +#define _GNU_SOURCE
> +#include "lapi/setns.h"
> +#include "tst_safe_clocks.h"
> +#include "tst_timer.h"
> +#include "lapi/namespaces_constants.h"
> +#include "tst_test.h"
> +
> +static struct tcase {
> + int clk_id;
> + int clk_off;
> + int off;
> +} tcases[] = {
> + {CLOCK_MONOTONIC, CLOCK_MONOTONIC, 10},
> + {CLOCK_BOOTTIME, CLOCK_BOOTTIME, 10},
> +
> + {CLOCK_MONOTONIC, CLOCK_MONOTONIC, -10},
> + {CLOCK_BOOTTIME, CLOCK_BOOTTIME, -10},
> +
> + {CLOCK_MONOTONIC_RAW, CLOCK_MONOTONIC, 100},
> + {CLOCK_MONOTONIC_COARSE, CLOCK_MONOTONIC, 100},
> +};
> +
> +static struct timespec now;
> +static int parent_ns;
> +
> +static void child(struct tcase *tc)
> +{
> + struct timespec then;
> + struct timespec parent_then;
> + long long diff;
> +
> + SAFE_CLOCK_GETTIME(tc->clk_id, &then);
> +
> + setns(parent_ns, CLONE_NEWTIME);
Maybe check the error code?
--
Thank you,
Richard.
next prev parent reply other threads:[~2020-03-09 13:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-05 13:48 [LTP] [PATCH 0/8] Add basic time namespace testcases Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 1/8] lapi/namespace_constants.h: Add CLONE_NEWTIME Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 2/8] lapi: Add a configure check and fallback for setns Cyril Hrubis
2020-03-09 10:15 ` Petr Vorel
2020-03-09 10:34 ` Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 3/8] include/tst_timer: Fix normalization Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 4/8] syscalls/sysinfo03: Add time namespace test Cyril Hrubis
2020-03-09 12:32 ` Richard Palethorpe
2020-03-09 12:48 ` Cyril Hrubis
2020-03-09 13:26 ` Richard Palethorpe
2020-03-09 13:33 ` Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 5/8] syscalls/clock_nanosleep03: Add test for time namespace Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 6/8] syscalls/clock_gettime03: Add basic time namespace test Cyril Hrubis
2020-03-09 13:23 ` Richard Palethorpe [this message]
2020-03-09 13:49 ` Cyril Hrubis
2020-03-05 13:48 ` [LTP] [PATCH 7/8] containers/timens: Add basic error test Cyril Hrubis
2020-03-10 12:06 ` Richard Palethorpe
2020-03-05 13:48 ` [LTP] [PATCH 8/8] syscalls/timerfd04: Add time namespace test Cyril Hrubis
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