validation, zmq: pass block in UpdatedBlockTip to avoid duplicate read #26375
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The following sections might be updated with supplementary metadata relevant to reviewers and maintainers. ConflictsReviewers, this pull request conflicts with the following ones:
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w0xlt
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Oct 25, 2022
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This will increase the memory use even if not using zmq. I guess it is fine because the queue is limited? |
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That sounds accurate. It seems |
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Github-Pull: bitcoin#26375 Rebased-From: 4a16416
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Github-Pull: bitcoin#26375 Rebased-From: 7b631dc
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Github-Pull: bitcoin#26375 Rebased-From: 4a16416
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Github-Pull: bitcoin#26375 Rebased-From: 7b631dc
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When
CZMQPublishRawBlockNotifier::NotifyBlockis called it callsReadBlockFromDiskwith the passed in block index. However, we will always have already read this block into memory duringActivateBestChainand use it to callBlockConnected. We can check for the tip block there and pass that intoUpdatedBlockTipto avoid having the zmq notifier read the block. This also has the benefit of removing thenode/blockstorage.hdependency entirely from the zmq code, so we can continue working to removeReadBlockFromDiskout of global scope (#26316 (comment)).