Lag-Free Midnight Timer Script

What is the best way to have a script run at midnight PST every night that is lag free (ie timer event is 24 hours long) and will be problem free after sim crashes and restarts?

Have one that, on state_entry, calculates the number of seconds to midnight, then sets a timer for that length of time. Once the timer triggers and does whatever you want to do at midnight, it can reset the timer to whatever 24 * 60 * 60 is. It should also reset itself on_rez.

If the sim is reset that should keep on working I'd think.

I use the method that Ordinal recommeds. Not sure about resets, but when the grid goes down for a new version the next day the emails it sends are all late, usually by about 2 hours.

Perhaps also confirm the actual time just before executing the task to ensure that the timer does not drift from executing the task at midnight. In this case, the event could still drift but should correct itself after the task executes so that the drift does not propogate into subsequent days.

-2fast

So what is the best way to get time until midnight?

float seconds_until_midnight = 86400.0 - llGetWallClock();

86400 is the number of seconds in a day, and llGetWallClock() returns the number of seconds since midnight (in SL time).

works! thx!

If you want a less laggy solution than using a timer, you can have it sleep. Find out the amount of time until midnight once, tell it to sleep for that long, then itll come out of the sleep at midnight. At this point, you can run your midnight code, and tell it to sleep for another 24 hours. A very simple while loop.

-Kokiri

Why would a while loop with a sleep be any less laggy than a timer?