Partially enumerated OSLogEnumerator leaves dangling dispatch queue threads behind
| Originator: | HofiOne | ||
| Number: | rdar://FB12071731 | Date Originated: | 2023. marc. 20 |
| Status: | Open | Resolved: | |
| Product: | OSLog Framework | Product Version: | |
| Classification: | Incorrect/Unexpected Behavior | Reproducible: | Always |
If the OSLogEnumerator returned by [OSLogStore entriesEnumeratorWithOptions:position:predicate:error:] is released before it is fully enumerated either via repeated nextObject calls till it returns nil or calling allObjects on it then it will not be closed/freed properly, and the underlying used com.apple.loggingsupport.stream dispatch queue will leave behind a working thread (waiting for a semaphore) that also holds all the already allocated memory for each released enumerators. If the enumerator fully iterated all of the log objects the issue is not happening.
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