andriy tylychko c136b16937 a workaround to avoid "deadlock by busy-waiting" in ShaderCodeArchive: the existing IAsyncReadRequest::WaitCompletion() didn't guarantee completion, only that the request is done and the result is ready. It was used in IMemoryReadStream::EnsureReadNonBlocking() to ensure the following read will be non-blocking, and this can fail and actually block on reading -> busy-waiting -> deadlock. The new method EnsureCompletion() was added instead of "fixing" existing WaitCompletion() because other use cases don't need completion guarantee and the new method is theoretically slower ...

#rb danny.couture,arciel.rekman

[CL 26281551 by andriy tylychko in ue5-main branch]

2023-06-28 07:23:02 -04:00

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FileCache.cpp

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