[squeak-dev] UTCDateAndTime updated for Squeak trunk Chronology and Spur (was: UTCDateAndTime updated for Squeak 4.6/5.0)

Eliot Miranda eliot.miranda at gmail.com
Thu Mar 24 00:50:19 UTC 2016


On Wed, Mar 23, 2016 at 4:51 PM, David T. Lewis <lewis at mail.msen.com> wrote:

> On Wed, Mar 23, 2016 at 04:22:21PM -0700, Eliot Miranda wrote:
> >
> > Turns out this isn't needed for Cog.  I have ioLocalSecondsOffset which
> > answers a value determined at start-up and only changed
> > via ioUpdateVMTimezone, which itself is controlled by
> > primitiveUpdateTimezone, #243.  So ioUTCMicroseconds is all that's needed
> > to get at the clock and timezone atomically.
>
> If it is updated at start-up, then it's wrong. Think of daylight savings
> time transitions.
>

So update it automatically once a second or some such?

_,,,^..^,,,_
best, Eliot
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