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From "Becky Gibson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CB-828) iOS contact.save() stucks the UI from updating on heavy load & has memory leaks.
Date Wed, 20 Jun 2012 14:18:42 GMT

    [ https://issues.apache.org/jira/browse/CB-828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13397536#comment-13397536
] 

Becky Gibson commented on CB-828:
---------------------------------

There will be fairly big changes to contacts for ARC.  Not sure if that will address the above
issues but no sense implementing threading until ARC conversion and elimination of 3.0 support
is complete.
                
> iOS contact.save() stucks the UI from updating on heavy load & has memory leaks.
> --------------------------------------------------------------------------------
>
>                 Key: CB-828
>                 URL: https://issues.apache.org/jira/browse/CB-828
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>            Reporter: Olivier Louvignes
>            Assignee: Shazron Abdullah
>              Labels: contacts
>             Fix For: 1.9.0
>
>
> I'm trying to restore 3000 contacts on a device, since i need to display a progress UI,
I had to use something like this (SenchaTouch 2 code but you get the point).
> [CODE]
> //forEach contacts as contact...
> _.delay(function() {
> 				contact.save({callback : function(contact, operation) {
> 					d&&console.log(displayName + ' ~ saved ('+ action +') contact', arguments);
> 					j++;
> 					App.getViewport().mask({message: __('restore...'), details: j + '/' + count, progress:
j/count, mode: 'determinate'});
> 					// Last item ?
> 					if(j == count) {
> 						contactStore.clearFilter();
> 						return self.afterRestore(callback);
> 					}
> 				}});
> 			}, 25*i);
> [/CODE]
> Works quite well in the simulator but i'm getting regular "failed to return after waiting
10 seconds. main run loop mode: kCFRunLoopDefaultMode" on a device.
> Major issue is that UI gets stuck for minutes.
> Then i get a few "Received memory warning."
> As if somehow the memory stacked somewhere (but the whole point of making separate call
was to avoid memory breakdown), so there might be a leak.
> At the end, it sometimes work / crash.
> Would there be a way to somehow use another thread for theses AddressBook operations?
> How could i prevent theses memory leaks?

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