Make stdout/stderr redirection thread timeout configurable #49942
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adityamandaleeka
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halter73,
BrennanConroy,
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BrennanConroy
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Aug 9, 2023
amcasey
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Contributes to #45066
The StandardStreamRedirection logic in ANCM uses
CancelSynchronousIoto kick the redirection thread out of its blockingReadFilecall and waits a hardcoded 2 seconds to allow the thread to exit before it callsTerminateThreadon the thread. This works reasonably well in the vast majority of cases (most of the time, the 2 seconds is enough), but occasionally, we have to resort to theTerminateThreadand in a small number of those cases, the thread might be doing something dangerous like holding the OS loader lock.I'd like to eventually rewrite this whole mechanism to eliminate
TerminateThreadentirely (as I did in the file watcher in #49696) but given where we are in the .NET 8 schedule, it's important to minimize the risk involved. This change just makes the timeout for thread termination configurable, so that people who are running into issues with this can give the thread more than 2 seconds to exit.@BrennanConroy