From: Andreas Schwab <schwab@linux-m68k.org>
To: Lukasz Majewski <lukma@denx.de>
Cc: Joseph Myers <joseph@codesourcery.com>,
Adhemerval Zanella <adhemerval.zanella@linaro.org>,
Florian Weimer <fweimer@redhat.com>,
GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH] tst: Provide test for getrusage
Date: Mon, 15 Mar 2021 11:55:44 +0100 [thread overview]
Message-ID: <87wnu83cun.fsf@igel.home> (raw)
In-Reply-To: <20210315104223.32542-1-lukma@denx.de> (Lukasz Majewski's message of "Mon, 15 Mar 2021 11:42:23 +0100")
On Mär 15 2021, Lukasz Majewski wrote:
> diff --git a/sysdeps/unix/sysv/linux/tst-getrusage.c b/sysdeps/unix/sysv/linux/tst-getrusage.c
> new file mode 100644
> index 0000000000..068becdadb
> --- /dev/null
> +++ b/sysdeps/unix/sysv/linux/tst-getrusage.c
> @@ -0,0 +1,55 @@
> +/* Test for getrusage
> + 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 <sys/resource.h>
> +#include <support/check.h>
> +#include <support/timespec.h>
> +
> +#define TST_GETRUSAGE_TIMEOUT 1
> +
> +static int
> +do_test (void)
> +{
> + struct timespec tv_then, tv_now, gru_u, gru_s, s, r;
> + struct rusage ru;
> + int ret;
> +
> + tv_then = xclock_now (CLOCK_REALTIME);
> + /* Busy wait for 1 second. */
> + do
> + {
> + tv_now = xclock_now (CLOCK_REALTIME);
> + r = timespec_sub (tv_now, tv_then);
> + } while ( r.tv_sec != TST_GETRUSAGE_TIMEOUT );
What happens if the process stalls for a second?
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
next prev parent reply other threads:[~2021-03-15 10:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 10:42 Lukasz Majewski
2021-03-15 10:55 ` Andreas Schwab [this message]
2021-03-15 13:56 ` Lukasz Majewski
2021-03-17 16:04 ` Lukasz Majewski
2021-03-17 16:24 ` Andreas Schwab
2021-03-22 11:29 ` Lukasz Majewski
2021-03-22 19:47 ` Adhemerval Zanella
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