Server Help

BDwinsAlt · Posted: Mon Sep 19, 2005 7:55 pm Post subject: java eclapsed time.

I've looked around forever and i can't seem to get this right.

I want !buptime to display how long the bot has been up.

Lets Say:
BDwinsAlt> !buptime
ST 2.3> Bot up for 2 day(s) 11 hour(s) 10 second(s). [Since 09/19/2005 at 7:00]

Please help

Contempt+ · Posted: Mon Sep 19, 2005 8:30 pm Post subject:

I was gonna start working on that one soon. Just gotta get around to doing it. I've got a lot of other stuff I'm working on at the same time, so I don't have the time to do it, lol.
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BDwinsAlt · Posted: Mon Sep 19, 2005 10:26 pm Post subject:

.

I bet it will be harder than you think. I've looked around but nothing gives me a good awnser.

Make a really cool bot and webiste then release it for public use.

I'm going to buy a book on java.

Anyone got suggestions?

tell me if http://bots.sscentral.com/bdwinsalt looks ok.

Cyan~Fire · Posted: Mon Sep 19, 2005 10:54 pm Post subject:

That's really loud.
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Dr Brain · Posted: Tue Sep 20, 2005 9:15 am Post subject:

http://javaalmanac.com/egs/java.util/CompDates.html
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Donkano · Posted: Tue Sep 20, 2005 6:17 pm Post subject:

Solo Ace · Posted: Tue Sep 20, 2005 6:20 pm Post subject:

That's the most ugly solution, though, Donk.

Maverick · Posted: Tue Sep 20, 2005 6:23 pm Post subject:

Yea, even Mervbot doesn't do it that way

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Bak · Posted: Tue Sep 20, 2005 6:49 pm Post subject:

it also doesn't solve the problem, donk.

In general, I don't recommend coding if you have trouble spelling words, like the title of your topic. It just leads to syntax errors.

BDwinsAlt · Posted: Tue Sep 20, 2005 10:36 pm Post subject:

Did i ask you how to spell it?

Contempt+ · Posted: Tue Sep 20, 2005 10:47 pm Post subject:

It might be hard, but you could get MERV's code for !uptime and see how they do it. Sure Java is different from C++, but you can at least get a basic idea, right?

Bak · Posted: Wed Sep 21, 2005 12:13 am Post subject:

it's not a difficult algorithm

record time when the bot is started

when !uptime is called print out the difference in time.

BDwinsAlt · Posted: Wed Sep 21, 2005 8:10 am Post subject:

I just don't know how to record the time when the bot was started. That's where my probelm is. I know how to subtract time into days/hours/minutes now.

I just need that start time.

Maverick · Posted: Wed Sep 21, 2005 8:53 am Post subject:

CypherJF · Posted: Wed Sep 21, 2005 10:27 am Post subject:

I really wish java would have an option for comparing against the uptime of the system - not a clock. The system clock changes for various reasons, out of sync with UTC, daylight savings time, etc. With that issue imports an instability into the timer scheduler of Java - which I have already discussed. Had they used the uptime of the OS, it'll never go backwards, nor massively forward into the future. A bit more stable. :/
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BDwinsAlt · Posted: Wed Sep 21, 2005 9:01 pm Post subject:

Agreed. And i'll try and see if it lets me send the currentMillis ina private message. Last time it said it couldn't do somethign with int.

I dunno, ill figure it out.

D1st0rt · Posted: Thu Sep 22, 2005 3:05 am Post subject:

Cyph, you mean like System.currentTimeMillis()?
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CypherJF · Posted: Thu Sep 22, 2005 8:18 am Post subject:

System.currentTimeMillis() depends on the current system time, not the uptime of the OS. They also say a lot of 'beware' statements in the API about it.

Looking though,nanoTime() looks more or less what I think, I would use. the API states "Returns the current value of the most precise available system timer, in nanoseconds." - not sure. It has the guarantee of precision but not accuracy. :/

:shrug:

Dr Brain · Posted: Thu Sep 22, 2005 10:13 am Post subject:

From what I've gathered, he's not concerned about OS uptime. Only finding bot uptime.

CypherJF · Posted: Thu Sep 22, 2005 10:22 am Post subject:

I know that. But, the "elapsed" (current_time - old_time) time will change when daylight savings time, etc. occur, does it not?

That's why you need an independent timing system such as the uptime of the OS where it'll never go backwards/forwards based on any specific day (or time).

I feel this appropriate quote fits well:

"Time line?!?!? This is no time to argue about time! We don't HAVE the time! ... what was I saying?" -- Troi, Star Trek: First Contact.

Bak · Posted: Thu Sep 22, 2005 10:35 am Post subject:

I don't think an hour inaccuracy twice a year is anything to worry about for this application
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CypherJF · Posted: Thu Sep 22, 2005 12:30 pm Post subject:

technically 'yes', you "should" worry about it.

Bak · Posted: Thu Sep 22, 2005 12:57 pm Post subject:

why? He wants a way to see if his bot is staying online for a long time.

It's not a life or death application, any effort to avoid things like daylight savings time is not worth the time spent implementing.

Dr Brain · Posted: Thu Sep 22, 2005 1:48 pm Post subject:

I would think with a definition like "the number of milliseconds elapsed since 12:00, midnight, Jan 1 1970", that DST would already be factored in. I could be wrong, of course.

Cyan~Fire · Posted: Thu Sep 22, 2005 4:09 pm Post subject:

Seeing as a long will overflow in 49.7 days, I'd say using a GetTickCount-like function would be more reliable than this currentTimeMillis().