Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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Master
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None
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iOS 11
cordova-ios@4.3.1
cordova-plugin-geolocation@2.4.2Although I am running an older version, this issue does not appear to be fixed in the latest plugin version as the relevant code has not been changed.
The javascript in my app is making multiple calls to `navigator.geolocation.getCurrentPosition()` in rapid succession.
iOS 11 cordova-ios@4.3.1 cordova-plugin-geolocation@2.4.2 Although I am running an older version, this issue does not appear to be fixed in the latest plugin version as the relevant code has not been changed. The javascript in my app is making multiple calls to `navigator.geolocation.getCurrentPosition()` in rapid succession.
Description
There is a race condition in CDVLocation.m. The self.locationData.locationCallbacks array can be mutated in one thread and enumerated concurrently in another thread, which causes the app to crash with the following exception:
Fatal Exception: NSGenericException
Collection <__NSArrayM: 0x1d444d020> was mutated while being enumerated.
The exception is raised at [CDVLocation returnLocationError:withMessage:] (CDVLocation.m:312)
I am unable to reproduce the issue, however it is a common crash for users of my app. A user named seeday on github has opened a pull request to address this issue: https://github.com/apache/cordova-plugin-geolocation/pull/91
I'm filing this bug to help get that work merged.
I've attached an abridged crash log with the relevant stack trace.
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