From: Bruce Richardson <bruce.richardson@intel.com>
To: Suraj R Gupta <surajrgupta@iith.ac.in>
Cc: users@dpdk.org, dev@dpdk.org
Subject: Re: [dpdk-users] [dpdk-dev] Stopping DPDK Timer [RTE-Timers]
Date: Mon, 2 Sep 2019 16:14:29 +0100 [thread overview]
Message-ID: <20190902151429.GB631@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <CAMfGv3mayOQkir=Csi+AZY1ZLmhLwaEoG6fUivHobsrB9L5tnA@mail.gmail.com>
On Mon, Sep 02, 2019 at 05:12:36PM +0530, Suraj R Gupta wrote:
> Hi,
> If I am right, rte_timer_stop() stops the timer after the call back
> execution.
> It is said that if rte_timer_stop() is called during timer running,
> function will fail.
> I want to know if timer can be stopped in middle abruptly? i.e If I
> have timer started for 500 ms and i want to stop it in 100ms
> Thanks
>
IIRC when a timer has been configured but the time has not yet expired
it is in the PENDING state, where is can be safely stopped. I believe the
running state is for timers which have expired and are about to have their
callbacks processed, or are currently having their callbacks processed on
another core. Therefore, in the normal case, using stop will do what
you want. If this is not the case, it seems like something we should fix.
Regards,
/Bruce
> On Mon, Sep 2, 2019 at 4:52 PM Bruce Richardson
> <[1]bruce.richardson@intel.com> wrote:
>
> On Mon, Sep 02, 2019 at 11:02:16AM +0530, Suraj R Gupta wrote:
> > Hi all,
> > I am working with DPDK timers.
> > In the documentation of timers, it has been said that dpdk based
> rte-timers
> > cannot stopped while running. I would like to know if there is any
> way to
> > stop it in middle or any workaround is possible.
> >
> > For e.g.: If I have timer started for 500 ms and i want to stop
> it in 100
> > ms due to an event/interrupt.
> >
> > Note:I am not talking of stopping timer after callback execution,
> before
> > timer expiry in middle
> > Thanks in advance.
> >
> I think rte_timer_stop() is what you are looking for.
> /Bruce
>
> --
>
> Thanks and Regards
> Suraj R Gupta
>
> References
>
> 1. mailto:bruce.richardson@intel.com
next prev parent reply other threads:[~2019-09-02 15:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-02 5:32 [dpdk-users] Stopping DPDK Timer [dpdk-dev] [RTE-Timers] Suraj R Gupta
2019-09-02 11:22 ` [dpdk-users] [dpdk-dev] Stopping DPDK Timer [RTE-Timers] Bruce Richardson
2019-09-02 11:42 ` Suraj R Gupta
2019-09-02 15:14 ` Bruce Richardson [this message]
2019-09-03 4:51 ` Suraj R Gupta
2019-09-03 6:04 ` Stephen Hemminger
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