cl-cron, cron like lisp library
Sat, Mar 21, 2009
Hey everyone, I just released the cl-cron library that I have written during this week. The library with instructions on usage is found on the main website or directly by going here.I was pretty disappointed not to find such a library when I started searching a couple of days ago (apologies to the Clon author but I just saw your entry after my release), so I hope cl-cron is of use to someone.
Anyways, your opinion matters so if anyone uses it or wants some changes let me know.
Thanks! cl-cron is _exactly_ what I was looking for. I was going to write one and thought “maybe someone has done it already” – and you have! I haven’t used it much yet, but it was a breeze to set up and worked immediately.
I’m using it to sample a 1-wire network every 3 minutes and log the data. I tried using sleep but it made the times creep back, because some of the sensors are sluggish in responding at times. So I still had one miserable piece of C-code in the whole system just so I could run Vixie-cron and now I can eliminate it.
All the graphs, the website, the dynamic data generation are handled in Lisp (look at top link to the plots of the weather data for an example). Its still reading rather long ASCII log files which have gotten kind of sluggish but that should go away as soon as I finish converting to binary here shortly.
Anyway, your contribution is much appreciated. If I run into anything worth commenting about I’ll let you know.
Jeff Cunningham
North Bend, Washington
Hey Jeff,
Thanks for the nice words, I am glad that cl-cron is helping someone out there. Please note that I have uploaded today a new version of cl-cron which uses a hash-table instead of a list which also allows you to delete cron jobs if you need too
. So in case the new version is of more interest to you then please go ahead and download it.
Regards,
Mackram G Raydan
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works in Clozure on windows 7, although there were some warnings. Still, it works fine.
It would be great if it supported seconds. This didn’t work:
(cl-cron:make-cron-job ‘test-print :minute 0.001 :step-min 0.001)
Anyways, thanks!.