how does ticketplant write the new tplog next day in kdb?

Question

I know tickerplant will write tplog when it receives data. at the end of the day, ticker plant will start writing a new tplog. I see tp.q but cannot figure out which function does that. I know .u.tick start writing the tplog on disk but dont see which command make the tplog start writing new tplog next day? Can someone please point me out?

Answer 1

.u.ts runs on a timer, constantly checking for end of day. At end of day it calls .u.endofday, which calls .u.ld.

.u.ld checks for existence of a log file with the current date in its name, if this file does not exist, it creates it.

.u.ld is responsible for creating the new log file each day