It looks like the output you posted is from your custom log file, so the first thing I'd do is to look at the system log to make sure that the problem isn't in your custom logging code. Also, doing anything lengthy in a broadcast receiver is a Bad Idea, and keeping the device awake while you're doing it is a Really, Really Bad Idea. If you need to do something every 30 minutes, you should schedule an alarm, not sleep for 30 minutes with a wakelock held.
On Sun, Mar 1, 2009 at 8:42 AM, Mariano Kamp <mariano.k...@gmail.com> wrote: > Hi, > > I don't really know how to phrase my question as I don't know what the > problem is. The symptom is that scheduled background activities are not > completed and I want to know why that is and how I can further debug/solve > it. > > This is happening with NewsRob and the background synchronization that > loads articles from Google Reader at a scheduled interval. To debug it I > meanwhile created a synthetic sample that shows the behavior too. A Thread > is started once an hour, acquires a partial wake lock, logs something, > sleeps for 30 minutes and then releases the partial wake lock and logs > again. > > > So it should look something like this: > 28 04:02: onReceive > 28 04:02: In aquire > 28 04:32: After release > > 28 being the day of the month followed by the time and message. > > Unfortunately it doesn't look like that all the time ;-) (Blank Lines and > <comment> added for readability). > > 28 05:02: onReceive > 28 05:02: In aquire > 28 05:32: After release > > 28 06:02: onReceive > 28 06:02: In aquire > <After release missing> > > 28 07:02: onReceive > 28 07:02: In aquire > <After release missing> > > 28 08:02: onReceive > 28 08:02: In aquire > <After release missing> > > 28 09:02: onReceive > <In aquire missing> > <After release missing> > .... > > So I suspect I do something wrong with the partial wake lock? But what? > And even if that is the case what should happen then? Shouldn't it continue > to run when a button on the device is pressed? > > So here is the full sample code: http://pastie.org/403831 > > And here is the relevant method: > > public void onReceive(final Context context, Intent intent) { > PersistentLog.log("onReceive", context); > new Thread(new Runnable(){ > > public void run() { > PowerManager pm = (PowerManager) > context.getSystemService(Context.POWER_SERVICE); > PowerManager.WakeLock wl = > pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "SomeTag"); > wl.acquire(); > PersistentLog.log("In aquire", context); > SystemClock.sleep(30 * 60 * 1000); > wl.release(); > PersistentLog.log("After release", context); > > } > }).start(); > } > > Any ideas? > > Cheers, > Mariano > > ps. Yes, I've seen the typo. Thanks for not bringing it up ;) > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
