[flowrate] refactor clock functions (Refs #16)
this commit does not fix the original bug
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@ -15,16 +15,16 @@ const clockRate = 20 * time.Millisecond
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// czero is the process start time rounded down to the nearest clockRate
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// increment.
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var czero = time.Duration(time.Now().UnixNano()) / clockRate * clockRate
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var czero = time.Now().Round(clockRate)
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// clock returns a low resolution timestamp relative to the process start time.
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func clock() time.Duration {
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return time.Duration(time.Now().UnixNano())/clockRate*clockRate - czero
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return time.Now().Round(clockRate).Sub(czero)
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}
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// clockToTime converts a clock() timestamp to an absolute time.Time value.
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func clockToTime(c time.Duration) time.Time {
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return time.Unix(0, int64(czero+c))
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return czero.Add(c)
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}
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// clockRound returns d rounded to the nearest clockRate increment.
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