Marco, thanks for taking the time to respond.
(a) If you look at the code ( http://pastie.org/403831) you'll see that it is in fact a custom log file (see class Persistent Log). The reason behind that is to be able to have a look at the problem over a longer period of time as it doesn't occur all the time. The default log seems to be a ring buffer holding just the log for a couple of minutes and is not of much help in this respect. (b) The receiver is triggered by an alarm (see the full code) and spawns of a Thread immediately. From the pastie code mentioned above: Intent i = new Intent(context, MyReceiver.class); PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0); AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, (System.currentTimeMillis() + 1000), 60 * 60 * 1000, pi); Cheers, Mariano On Sun, Mar 1, 2009 at 6:13 PM, Marco Nelissen <marc...@android.com> wrote: > > 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 -~----------~----~----~----~------~----~------~--~---
