core: document that NameResolver is not thread-safe. #2918
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Resolves grpc#2649. This makes resolvers easier to implement.
| } | ||
| savedListener = listener; | ||
| resolving = true; | ||
| // If this task is started by refresh(), there might already be a scheduled task. |
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What happens if resolutionRunnable runs on a thread other than the original one it ran on. I don't know if ChannelExecutor is guaranteed to be serial.
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Hmm, you are right. ChannelExecutor needs to be exposed to NameResolver so that tasks ran in an executor can be serialized with it. I will put this PR on hold until I have time to improve it.
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Superseded by #5364 |
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Resolves #2649. This makes resolvers easier to implement.