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assumeutxo cleanup: Move IsInitialBlockDownload & NotifyHeaderTip to ChainstateManager

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This change makes IsInitialBlockDownload and NotifyHeaderTip functions no
longer tied to individual Chainstate objects. It makes them work with the
ChainstateManager object instead so code is simpler and it is no longer
possible to call them incorrectly with an inactive Chainstate.

This change also makes m_cached_finished_ibd caching easier to reason about,
because now there is only one cached value instead of two (for background and
snapshot chainstates) so the cached IBD state now no longer gets reset when a
snapshot is loaded.

There should be no change in behavior because these functions were always
called on the active ChainState objects.

These changes were discussed previously
https://github.com/bitcoin/bitcoin/pull/27746#discussion_r1246868905 and
https://github.com/bitcoin/bitcoin/pull/27746#discussion_r1237552792 as
possible followups for that PR.
This commit is contained in:
Ryan Ofsky
2023-08-04 16:43:39 -04:00
parent 9b066da8af
commit 94a98fbd1d
14 changed files with 80 additions and 67 deletions
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2
src/bitcoin-chainstate.cpp
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@@ -163,7 +163,7 @@ int main(int argc, char* argv[])
<< "\t" << "Reindexing: " << std::boolalpha << node::fReindex.load() << std::noboolalpha << std::endl
<< "\t" << "Snapshot Active: " << std::boolalpha << chainman.IsSnapshotActive() << std::noboolalpha << std::endl
<< "\t" << "Active Height: " << chainman.ActiveHeight() << std::endl
<< "\t" << "Active IBD: " << std::boolalpha << chainman.ActiveChainstate().IsInitialBlockDownload() << std::noboolalpha << std::endl;
<< "\t" << "Active IBD: " << std::boolalpha << chainman.IsInitialBlockDownload() << std::noboolalpha << std::endl;
CBlockIndex* tip = chainman.ActiveTip();
if (tip) {
std::cout << "\t" << tip->ToString() << std::endl;