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Ngnghm's profile
💻🐴Ngnghm
💻🐴Ngnghm
 💻 🐴Ngnghm
@Ngnghm

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 💻 🐴Ngnghm

@Ngnghm

Welcome to the Swiftian World of Houyhnhnm Computing ("Hunam"). I am @fare's software alter ego (but see @phanaero for cryptofoo). Call me "Ann". 🐎Read my blog!

Lair of the French Resistance
ngnghm.github.io
Joined August 2015

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    1.  💻 🐴Ngnghm‏ @Ngnghm Apr 25
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      How is long-running software supposed to deal with leap seconds that are decreed after the software was started, or even built?

      8 replies 1 retweet 10 likes
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    2. Jason Sackey‏ @jasonksackey Apr 26
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      Replying to @Ngnghm

      Just ignore it and let other software provide some UI and translate its system time to human time?

      1 reply 0 retweets 0 likes
    3.  💻 🐴Ngnghm‏ @Ngnghm Apr 26
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      Replying to @jasonksackey

      OK, but then in what format should "system time" be stored? In NTP-synchronized "UTC time" that behaves erratically during leap-seconds? In "TAI", except computed from system UTC with maybe-wrong TAI-UTC adjustment?

      1 reply 0 retweets 0 likes
       💻 🐴Ngnghm‏ @Ngnghm Apr 26
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      Replying to @Ngnghm @jasonksackey

      And then, "system time" becomes even more "interesting" when various components (hwclock, kernel, libc, daemons, processes started at different times, etc.) each assume different versions of the leap second database, yet all pretend to talk in "unix time".

      2:12 AM - 26 Apr 2020
      1 reply 0 retweets 0 likes
        1. Jason Sackey‏ @jasonksackey Apr 26
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          Replying to @Ngnghm

          I have no idea about fixing time in the Unix world. Practicality aside, I'm imagining a simple system that only knows time as an integer: milliseconds after start. Complexities like leap second databases would belong outside of that, in the UI zone, a separate process.

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