chain head listener: Ensure periodic updates #2725
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tilacog
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Aug 20, 2021
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Chain head listener fallback, take 3. #2723 had a serious problem and this approach seems cleaner, since it doesn't touch the block stream. This also enables the
parking_lotfeature in tokio, so that we use fair locks in more places in an attempt to prevent deadlocks under load.Resolves #2714.