Messages in this thread |  | | From | Watson Ladd <> | Date | Tue, 4 Feb 2020 14:31:39 -0800 | Subject | Additional interface to kernel timekeeping for leapsecond clarity |
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Dear all,
I'm writing because I'm interested in adding a system call to linux and other free operating systems that will return the current time in a structure that will include a flag for whether or not there is a leap second when the result is taken. While adjtimex exists, it's a very heavy interface to this functionality. This is necessary for computing the Modified Julian Day+microseconds since midnight in userspace, something of interest for roughtime.
ntp_gettimex doesn't quite do this either: the TAI offset doesn't let one compute the Modified Julian day without an almanac. To the best of my knowledge this doesn't exist yet, but I would be happy to be proven wrong.
Adding this would make it possible to adapt userspace to the harsh realities of UTC.
Sincerely, Watson Ladd
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