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POWhy will EKEventStore hang on indefinitely while saving events?
 

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  1. POWhy will EKEventStore hang on indefinitely while saving events?
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    <p>I am trying to create an event and store it in the default calendar using this common piece of code:</p> <pre><code>EKEventStore *eventDB = [[EKEventStore alloc] init]; EKEvent *myEvent = [EKEvent eventWithEventStore:eventDB]; myEvent.title = titolo; myEvent.startDate = [NSDate date]; myEvent.calendar = [eventDB defaultCalendarForNewEvents]; myEvent.endDate = data; myEvent.allDay = NO; myEvent.notes = note; NSMutableArray *myAlarmsArray = [[NSMutableArray alloc] init]; EKAlarm *alarm1 = [EKAlarm alarmWithRelativeOffset:-300]; // 5 minutes EKAlarm *alarm2 = [EKAlarm alarmWithRelativeOffset:-3600]; // 1 hour EKAlarm *alarm3 = [EKAlarm alarmWithRelativeOffset:-86400]; // 1 day [myAlarmsArray addObject:alarm1]; [myAlarmsArray addObject:alarm2]; [myAlarmsArray addObject:alarm3]; myEvent.alarms = myAlarmsArray; [myAlarmsArray release]; NSError *err; [eventDB saveEvent:myEvent span:EKSpanThisEvent error:&amp;err]; if (err == noErr) { return YES; } else { [Utils logError:err]; return NO; } </code></pre> <p>It gives not a single problem in the simulator, but when running it on the physical device this will hang on indefinitely when I call <code>[eventDB saveEvent:span:error:]</code>. I tested in the simulator with iOS 4.2/4.3 and iOS 5.0.1, and on the real device I have iOS 5.0.1 installed.</p> <p>What am I doing wrong here? Is it my fault or did I misconfigured the app somewhere?</p> <p>Thank you.</p> <p><strong>Update</strong></p> <p>Here is the stack trace of the call when I pause the app via Xcode:</p> <pre><code>#0 0x3622a060 in semaphore_wait_trap () #1 0x36f55450 in _dispatch_thread_semaphore_wait$VARIANT$up () #2 0x36f536b4 in _dispatch_barrier_sync_f_slow () #3 0x36f53632 in dispatch_barrier_sync_f$VARIANT$up () #4 0x36f5328e in dispatch_sync_f$VARIANT$up () #5 0x36f53910 in dispatch_sync$VARIANT$up () #6 0x31b46628 in -[EKEventStore _deleteObject:] () #7 0x31b48f28 in -[EKPersistentObject primitiveRemoveRelatedObject:forKey:] () #8 0x31b43972 in -[EKPersistentEvent _adjustForNewCalendar] () #9 0x31b43490 in -[EKPersistentEvent validate:] () #10 0x31b708a2 in __23-[EKEventStore commit:]_block_invoke_0 () #11 0x36f537ea in _dispatch_barrier_sync_f_invoke () #12 0x36f5365a in dispatch_barrier_sync_f$VARIANT$up () #13 0x36f5328e in dispatch_sync_f$VARIANT$up () #14 0x36f53910 in dispatch_sync$VARIANT$up () #15 0x31b43200 in -[EKEventStore commit:] () #16 0x31b3f254 in -[EKEventStore saveEvent:span:commit:error:] () #17 0x31b3f11a in -[EKEventStore saveEvent:span:error:] () #18 0x00009018 in +[Utils creaEventoDaCalendario:note:data:] at /myPrivatePath/Utils.m:123 #19 0x0000c144 in -[PotenzialitaController(hidden) salvaEvento] () #20 0x34279434 in -[NSObject performSelector:withObject:withObject:] () #21 0x376e39ea in -[UIApplication sendAction:to:from:forEvent:] () #22 0x377a93ce in -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] () #23 0x34279434 in -[NSObject performSelector:withObject:withObject:] () #24 0x376e39ea in -[UIApplication sendAction:to:from:forEvent:] () #25 0x376e39a6 in -[UIApplication sendAction:toTarget:fromSender:forEvent:] () #26 0x376e3984 in -[UIControl sendAction:to:forEvent:] () #27 0x376e36f4 in -[UIControl(Internal) _sendActionsForEvents:withEvent:] () #28 0x376e402c in -[UIControl touchesEnded:withEvent:] () #29 0x376e250e in -[UIWindow _sendTouchesForEvent:] () #30 0x376e1f00 in -[UIWindow sendEvent:] () #31 0x376c84ec in -[UIApplication sendEvent:] () #32 0x376c7d2c in _UIApplicationHandleEvent () #33 0x30afadf2 in PurpleEventCallback () #34 0x342f3552 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ () #35 0x342f34f4 in __CFRunLoopDoSource1 () #36 0x342f2342 in __CFRunLoopRun () #37 0x342754dc in CFRunLoopRunSpecific () #38 0x342753a4 in CFRunLoopRunInMode () #39 0x30af9fcc in GSEventRunModal () #40 0x376f6742 in UIApplicationMain () #41 0x00002cbc in main at /myPrivatePath/main.m:14 </code></pre> <p>At step <code>#17</code> there is the call that hangs.</p>
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    1. COPlease click the debugger's pause button when it hangs and post the stack trace.
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      1. POWhy will EKEventStore hang on indefinitely while saving events?
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    2. COThe last call in the stack trace seems to be that `[eventDB saveEvent:span:error:]`. I will try to get a complete stack trace asap. Thanks!
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      1. POWhy will EKEventStore hang on indefinitely while saving events?
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    3. COThis is a bug in iOS5. Question a possible duplicate of [EventKit - App freezes when adding an EKEvent with 2 alarms in iOS5](http://stackoverflow.com/q/7844402).
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      1. POWhy will EKEventStore hang on indefinitely while saving events?
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