Re: How can Emacs get a unique ID per Linux reboot?

Richard Gooch (rgooch@atnf.csiro.au)
Tue, 1 Jun 1999 15:12:02 +1000

H. Peter Anvin writes:
> Richard Gooch wrote:
> >
> > H. Peter Anvin writes:
> > > Get the current uptime from /proc/uptime and subtract that from the
> > > current time.
> >
> > Won't that foul up if the system is suspended (system clock is
> > restored from hwclock on resume)?
> > And probably also when settimeofday() is called?
>
> No, and yes, respectively.

??? AFAIK, /proc/uptime stops ticking over when the system is
suspended. However, since the current time is "restored" after a
resume, the two values will not track. The computed "boot time" will
drift forward by as many seconds as the system was suspended.
Is this not correct?

Regards,

Richard....

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