[ILUG] [OT] C time_elapsed function

John J. Allen john.allen at online.ie
Tue Nov 6 18:49:47 GMT 2001


Padraig Brady wrote:

> I can't beleive there isn't a platform independent
> getSecondsSinceBoot() function, but can't find one.
> Please tell me I'm wrong.
> 
> Note time() and gettimeofday() both return seconds since 1970,
> and hence won't do as the value returned isn't guaranteed to
> monotonically increase (as the system date can change).
> 
> Note also that uptime in /proc/loadavg wraps after 472 days
> (32 bit jiffies). Is there a value anywhere that increments
> monotonically with second resolution?
> 
> thanks,
> Padraig.
> 
> 

Chekc the utmp() function

-- 
John Allen                         email: john.allen at online.ie
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