From: Cyril Hrubis <chrubis@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [RFC] statx Timestamp Test case
Date: Fri, 10 Aug 2018 14:42:56 +0200 [thread overview]
Message-ID: <20180810124256.GA32275@rei.lan> (raw)
In-Reply-To: <d1c5e0ca49ef02e6ca2f87a8ac524428.squirrel@pike.zilogic.com>
Hi!
> >void my_clock_gettime(struct timespec *time)
> > {
> > int ret;
> > struct timespec prev_time;
>
>
> > ret = clock_gettime(CLOCK_REALTIME_COARSE, &prev_time);
> > if (ret == -1)
> > tst_brk(TINFO | TERRNO, "clock_gettime failed");
>
> > do {
> > ret = clock_gettime(CLOCK_REALTIME_COARSE, time);
> > if (ret == -1)
> > tst_brk(TINFO | TERRNO, "clock_gettime failed");
> > } while (time == prev_time);
> >}
>
> Is this approach fine or is there any other better way of doing it?
You can use clock_getres() to query the lenght of the timer tick then
usleep a bit more than that, e.g. multiply that by 1.5.
--
Cyril Hrubis
chrubis@suse.cz
prev parent reply other threads:[~2018-08-10 12:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-09 13:30 [LTP] [RFC] statx Timestamp Test case vaishnavi.d
2018-08-10 12:42 ` Cyril Hrubis [this message]
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