Time handling

[glmrenard]

Hello All,
I want write a daemon in python but this daemon have to read a conf file like

<server>
<name>nagios</name>
<check>process1;process2;process3
<day>01234
<hour>08:00-18:00
<delay>360</delay>
</hour>
<hour>18:00-23:59;00:00-07:59 <intervalle>3600</intervalle>
</hour>
</day>
<check>
</serveur>

And it has to communicate with an other daemon (via socket) all monday -> friday all 5 mn betwwen 8 and 18 and one per hour otherwise (accordinf to the example conf file)

I have absolutely no idea how I can do that in python.

Maybe an infinite loop.
I read the conf file but I have to know the time, and, mostly, to know how I can run one check per 5 mn by example because I can't use crontab ...

Does someone have an idea please ?

 

[arcsecond]

Never done this myself, but I think a timer object might come in handy for that.

http://www.python.org/doc/2.4.2/lib/timer-objects.html

Find a way to check the system time, probably using the time module (

http://www.python.org/doc/2.4.2/lib/module-time.html)

and based on what time you find there call your timer object.

Maybe make a timer object to check the time so you're not constantly polling the system clock.

Hope this helps.

-James

 

[arcsecond]

This code seems to work for me. Naturally you'd want to change the interval times and have it actually call your daemon function. Haven't found a way to stop it yet though. It is effectively infinite until you kill the process.

This was fun, I'd never thought of doing that before. Thanks for the challenge.

-James

import time
import threading
>>> def jpSelfCalling(args):
	now = time.asctime()
	nowTuple = time.strptime(now)
	if nowTuple[3] < 8 or nowTuple[3] > 18:
		newArgs = [60]
	else:
		newArgs = [10]
	print now
	t = threading.Timer(args, jpSelfCalling, newArgs)
	t.start()

	
>>> jpSelfCalling(10)
Mon Jan 23 17:30:33 2006
>>> Mon Jan 23 17:30:43 2006
Mon Jan 23 17:30:53 2006
Mon Jan 23 17:31:03 2006
Mon Jan 23 17:31:13 2006
Mon Jan 23 17:31:23 2006
Mon Jan 23 17:31:33 2006
Mon Jan 23 17:31:43 2006
Mon Jan 23 17:31:53 2006
Mon Jan 23 17:32:03 2006
Mon Jan 23 17:32:13 2006
Mon Jan 23 17:32:24 2006
Mon Jan 23 17:32:34 2006

 

[glmrenard]

Hello arcsecond!

Thanks a lot for your answer and your example, I'll try tis out ASAP !!
Thanks again and have a nice day !

PS : you're welcome, for the challenge