dotnet/runtime

Ensure FileStatus' Unix exception throwing behavior matches Windows

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#31.141 aperta il 10 ott 2019

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Descrizione

Initially reported by @davidfowl and discussed via email with @JeremyKuhne : we need to make sure Unix matches Windows when it comes to capturing and throwing exceptions.

David got this callstack when the Docker container got disconnected:

Unhandled exception. Unhandled exception. System.IO.IOException: Input/output error
   at System.IO.FileStatus.EnsureStatInitialized(ReadOnlySpan`1 path, Boolean continueOnError)
   at System.IO.FileStatus.GetLastWriteTime(ReadOnlySpan`1 path, Boolean continueOnError)
   at Microsoft.Extensions.FileProviders.Physical.PollingFileChangeToken.GetLastWriteTimeUtc()
   at Microsoft.Extensions.FileProviders.Physical.PollingFileChangeToken.get_HasChanged()
   at Microsoft.Extensions.FileProviders.Physical.PhysicalFilesWatcher.RaiseChangeEvents(Object state)
   at System.Threading.TimerQueueTimer.CallCallback(Boolean isThreadPool)
   at System.Threading.TimerQueueTimer.Fire(Boolean isThreadPool)
   at System.Threading.TimerQueue.FireNextTimers()System.IO.IOException: Input/output error
   at System.IO.FileStatus.EnsureStatInitialized(ReadOnlySpan`1 path, Boolean continueOnError)
   at System.IO.FileStatus.GetLastWriteTime(ReadOnlySpan`1 path, Boolean continueOnError)
   at Microsoft.Extensions.FileProviders.Physical.PollingFileChangeToken.GetLastWriteTimeUtc()
   at Microsoft.Extensions.FileProviders.Physical.PollingFileChangeToken.get_HasChanged()
   at Microsoft.Extensions.FileProviders.Physical.PhysicalFilesWatcher.RaiseChangeEvents(Object state)
   at System.Threading.TimerQueueTimer.CallCallback(Boolean isThreadPool)
   at System.Threading.TimerQueueTimer.Fire(Boolean isThreadPool)
   at System.Threading.ThreadPoolWorkQueue.Dispatch()

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