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Main thread issues in xcode 9 / ios 11 #150

@rhaining

Description

@rhaining

Seeing these errors in the console when running FastImageCache on iOS 11 using Xcode 9 beta 5:

Main Thread Checker: UI API called on a background thread: -[UIApplication isProtectedDataAvailable]
PID: 5517, TID: 94612, Thread name: (none), Queue name: com.path.FastImageCacheQueue, QoS: 0
Backtrace:
4   FastImageCache                      0x0000000115bd9d18 -[FICImageTable canAccessEntryData] + 1336
5   FastImageCache                      0x0000000115bda47e -[FICImageTable _entryDataAtIndex:] + 702
6   FastImageCache                      0x0000000115bd2682 -[FICImageTable setEntryForEntityUUID:sourceImageUUID:imageDrawingBlock:] + 3186
7   FastImageCache                      0x0000000115bf23f1 __69-[FICImageCache _processImage:forEntity:imageTable:completionBlocks:]_block_invoke + 689
8   libclang_rt.asan_iossim_dynamic.dylib 0x000000010f67a412 __wrap_dispatch_async_block_invoke + 290
9   libdispatch.dylib                   0x000000011b5422cf _dispatch_call_block_and_release + 12
10  libdispatch.dylib                   0x000000011b543314 _dispatch_client_callout + 8
11  libdispatch.dylib                   0x000000011b54b7a2 _dispatch_queue_serial_drain + 1162
12  libdispatch.dylib                   0x000000011b54c12a _dispatch_queue_invoke + 340
13  libdispatch.dylib                   0x000000011b54f044 _dispatch_root_queue_drain + 772
14  libdispatch.dylib                   0x000000011b54ece2 _dispatch_worker_thread3 + 132
15  libsystem_pthread.dylib             0x000000011b9b15a2 _pthread_wqthread + 1299
16  libsystem_pthread.dylib             0x000000011b9b107d start_wqthread + 13
2017-08-18 14:26:26.100570-0400 Venmo[5517:94612] [reports] Main Thread Checker: UI API called on a background thread: -[UIApplication isProtectedDataAvailable]
PID: 5517, TID: 94612, Thread name: (none), Queue name: com.path.FastImageCacheQueue, QoS: 0
Backtrace:
4   FastImageCache                      0x0000000115bd9d18 -[FICImageTable canAccessEntryData] + 1336
5   FastImageCache                      0x0000000115bda47e -[FICImageTable _entryDataAtIndex:] + 702
6   FastImageCache                      0x0000000115bd2682 -[FICImageTable setEntryForEntityUUID:sourceImageUUID:imageDrawingBlock:] + 3186
7   FastImageCache                      0x0000000115bf23f1 __69-[FICImageCache _processImage:forEntity:imageTable:completionBlocks:]_block_invoke + 689
8   libclang_rt.asan_iossim_dynamic.dylib 0x000000010f67a412 __wrap_dispatch_async_block_invoke + 290
9   libdispatch.dylib                   0x000000011b5422cf _dispatch_call_block_and_release + 12
10  libdispatch.dylib                   0x000000011b543314 _dispatch_client_callout + 8
11  libdispatch.dylib                   0x000000011b54b7a2 _dispatch_queue_serial_drain + 1162
12  libdispatch.dylib                   0x000000011b54c12a _dispatch_queue_invoke + 340
13  libdispatch.dylib                   0x000000011b54f044 _dispatch_root_queue_drain + 772
14  libdispatch.dylib                   0x000000011b54ece2 _dispatch_worker_thread3 + 132
15  libsystem_pthread.dylib             0x000000011b9b15a2 _pthread_wqthread + 1299
16  libsystem_pthread.dylib             0x000000011b9b107d start_wqthread + 13

We're currently pulling in commit e4b19dfe57c8368b3a730cf98b2d411950c30f18.

thanks!

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