IsInitialBlockDownload: usually avoid locking #1728
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Optimistically test the latch bool before taking the lock. For all IsInitialBlockDownload calls after the first to return false, this avoids the need to lock cs_main. Coming from btc@f0fdda0181e1b05b66541bf235c6702c41664170
Fuzzbawls
approved these changes
Jul 7, 2020
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Straightforward, coming from btc@8007