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Re: time.monotonic() roll over

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Subject Re: time.monotonic() roll over
Date Thu, 04 Dec 2014 11:51:16 -0500
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On Thu, Dec 4, 2014, at 10:50, Marko Rauhamaa wrote:
> That is, the internal integer wrap is not guarded against between the
> calls to time.monotonic(), maybe.

Looking at the code, it looks like it does guard against the rollover,
though if you let your program run for 49.7 days _without_ calling
time.monotonic during that time, it will not realize that it has passed
the original value multiple times. And of course, if it rolls over
before the first time you call monotonic in process B, process B's value
will be less than process A which called it before the rollover.

This is consistent with the documentation, and appears to be the reason
the documentation discusses this issue at all.

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Thread

time.monotonic() roll over "ast" <nomail@invalid.com> - 2014-12-04 16:25 +0100
  Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-04 17:50 +0200
    Re: time.monotonic() roll over Ian Kelly <ian.g.kelly@gmail.com> - 2014-12-04 09:05 -0700
      Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-04 18:21 +0200
        Re: time.monotonic() roll over Chris Angelico <rosuav@gmail.com> - 2014-12-05 03:27 +1100
          Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-04 20:09 +0200
            Re: time.monotonic() roll over Chris Angelico <rosuav@gmail.com> - 2014-12-05 05:29 +1100
              Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-04 20:44 +0200
                Re: time.monotonic() roll over Chris Angelico <rosuav@gmail.com> - 2014-12-05 07:02 +1100
            Re: time.monotonic() roll over Ian Kelly <ian.g.kelly@gmail.com> - 2014-12-04 12:29 -0700
            Re: time.monotonic() roll over Akira Li <4kir4.1i@gmail.com> - 2014-12-04 23:24 +0300
            Re: time.monotonic() roll over Chris Angelico <rosuav@gmail.com> - 2014-12-05 07:33 +1100
              Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-04 22:51 +0200
            Re: time.monotonic() roll over Ian Kelly <ian.g.kelly@gmail.com> - 2014-12-04 15:17 -0700
              Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-05 00:44 +0200
                Re: time.monotonic() roll over Ian Kelly <ian.g.kelly@gmail.com> - 2014-12-05 10:04 -0700
                Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-05 20:48 +0200
            Re: time.monotonic() roll over Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-12-05 11:39 +1100
              Re: time.monotonic() roll over Dave Angel <davea@davea.name> - 2014-12-04 20:21 -0500
                Re: time.monotonic() roll over Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-12-05 13:54 +1100
                Re: time.monotonic() roll over Dave Angel <davea@davea.name> - 2014-12-05 00:29 -0500
                Re: time.monotonic() roll over Lele Gaifax <lele@metapensiero.it> - 2014-12-05 08:56 +0100
                Re: time.monotonic() roll over Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-12-05 21:09 +1100
                Re: time.monotonic() roll over Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-12-05 12:12 -0500
              Re: time.monotonic() roll over Marko Rauhamaa <marko@pacujo.net> - 2014-12-05 08:17 +0200
                Re: time.monotonic() roll over Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-12-05 12:31 -0500
              Re: time.monotonic() roll over Akira Li <4kir4.1i@gmail.com> - 2014-12-05 12:48 +0300
    Re: time.monotonic() roll over Chris Angelico <rosuav@gmail.com> - 2014-12-05 03:12 +1100
    Re: time.monotonic() roll over random832@fastmail.us - 2014-12-04 11:51 -0500
  Re: time.monotonic() roll over Nobody <nobody@nowhere.invalid> - 2014-12-05 00:54 +0000

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