Commit b53f5aa1 authored by Derek Murray's avatar Derek Murray Committed by TensorFlower Gardener
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Prevent deadlocks when OP_REQUIRES is used in AsyncOpKernel::ComputeAsync(). 

If OP_REQUIRES or OP_REQUIRES_OK are used in an override of AsyncOpKernel::ComputeAsync() and the condition does not hold, the process will deadlock because the `done` callback is never called. This change raises a fatal error with an actionable error message in this case.

PiperOrigin-RevId: 206373312
parent 81d927bf
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