[gentoo-embedded] more than 1s precise time

[gentoo-embedded] more than 1s precise time

[Jakub Ladman]

Hi there.

Please excuse me my OT question.

Please let me know how to get at least 0.1 second precise time. I do not need 
any relation with real time, it may be time from system start or vice versa.
I need to store time to compare it with newer value in the future to detect 
timeouts. 

Can you help me?

Jakub Ladman
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RE: [gentoo-embedded] more than 1s precise time

[Morgan, Austin D.]

There are many methods to accomplish the task you have presented.  The
first an probably most used is gettimeofday.  You have clock_gettime so
you can select what time source you would like to reference.  You also
have Assessors for the RTC system.  It all depends on what it is you
would like to do.  My advice is check out man 7 time.

Austin Morgan

-----Original Message-----
From: gentoo-embedded+bounces-1351-AUSTIN.D.MORGAN=saic.com@gentoo.org
[mailto:gentoo-embedded+bounces-1351-AUSTIN.D.MORGAN=saic.com@gentoo.org
] On Behalf Of Jakub Ladman
Sent: Wednesday, October 11, 2006 9:43 AM
To: gentoo-embedded@lists.gentoo.org
Subject: [gentoo-embedded] more than 1s precise time


Hi there.

Please excuse me my OT question.

Please let me know how to get at least 0.1 second precise time. I do not
need 
any relation with real time, it may be time from system start or vice
versa. I need to store time to compare it with newer value in the future
to detect 
timeouts. 

Can you help me?

Jakub Ladman
-- 
gentoo-embedded@gentoo.org mailing list

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Re: [gentoo-embedded] more than 1s precise time

[KIMURA Masaru / hiyuh]

Hi,

2006/10/11, Jakub Ladman <ladmanj@volny.cz>:
> Hi there.
>
> Please excuse me my OT question.
>
> Please let me know how to get at least 0.1 second precise time. I do not need
> any relation with real time, it may be time from system start or vice versa.
> I need to store time to compare it with newer value in the future to detect
> timeouts.
[SNIP]

I like select(2) for non-realtime timeout functionalities.
See also, "man 2 select" and "man 2 select_tut".
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