nomrasco wrote:
ibrahim wrote:
> I am very sorry for not making my question clear enough. But the
> situation you just described is JUST what I want to do! Yes, I want to
> do something exactly as you described; I am now at 4:00 am, I need to
> make my app do something at - say - 8:00 am (the time of the alarm is
> calculated and varies from time to time, so i can't just use cron jobs
> to schedule the next alarm), So, I used a QTimer and set its interval to
> the duration between now and the next alarm. BUT this solution won't
> work if user decides to adjust the system clock/change timezone.
> What I'm asking is there anyway to GET NOTIFIED by the system when > its
> clock/timezone changes (in order to recalculate the next alarm and set
> my Qtimer object to a new duration)?? any signal emitted ? anything?
> I hope i made my question clear and sorry for any inconvenience.
> thanks again
Hi,
You should check libalarm API and its feautures
(http://maemo.org/api_refs/5.0/5.0-final/libalarm/). It provides You
exactly what You want... the only problem is that it is in pure C. You
can add alarm and forget about QTimer etc. Device could be even boot
up on You alarm if that is a behaviour You would like to get (and
device was switched off before Your alarm;) ). It should not be to
hard to use this library in Qt code. Furthermore, You can check
another library provided by Nokia - libtime
(http://maemo.org/api_refs/5.0/5.0-final/clockd/). It allows You to
communicate with clockd which is responsible for maintaining time on
the device. clockd daemon also sends D-Bus signal
(http://maemo.org/api_refs/5.0/5.0-final/clockd/libtime_8h.html just
at the top of the page :) ) after time was changed by the user or time
was synchronized and changed to different GMT offset (this is not
working with every GSM network though).
So.. fast reply for Your question is: signal send by clockd. Better
solution: use libalarm which will save You a lot of time :)
Best Regards
--
nomrasco
software development
thank you very much for your response. I will try both your and faheem's
answers. will get back to you soon if everything happens
thanks again
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