Information about the best known chain is added to wallet.dat. If this information does not match the data in blkindex.dat, a rescan is automatically performed at startup, starting from the the last known block. When upgrading from a wallet which does not have this information, no rescan is done automatically.
Automatically rescan after restoring wallet.dat #152
pull sipa wants to merge 1 commits into bitcoin:master from sipa:autorescan changing 3 files +33 −1-
sipa commented at 2:22 PM on April 13, 2011: member
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sipa commented at 2:25 PM on April 13, 2011: member
One thing I did not test, is the slowdown. Continuously creating CBlockLocator's and writing them to wallet.dat may slow down initial block download.
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gavinandresen commented at 2:43 PM on April 13, 2011: contributor
Nice! RE: block download speed: I'd suggest a check for if IsInitialBlockDownload() and don't bother writing best-block-index during the initial block download.
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sipa commented at 3:33 PM on April 13, 2011: member
Ok, updated.
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gavinandresen commented at 4:07 PM on April 15, 2011: contributor
Looking at this again and thinking about pulling, it seems more complicated than it needs to be-- CBlockLocator can already serialize/deserialize itself, is there a reason for the ReadBestBlock/WriteBestBlock methods? Why not just Read/Write the CBlockLocator instead of CBLockLocator.vHave?
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4f40b0922e
Automatically rescan after restoring wallet.dat
Information about the best known chain is added to wallet.dat. If this information does not match the data in blkindex.dat, a rescan is automatically performed, starting from the the last known block. When upgrading from a wallet which does not have this information, no rescan is done automatically.
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sipa commented at 5:38 PM on April 17, 2011: member
I didn't realize db.h did define classes from main.h as well, to use them. I added CBlockLocator to those and simplified the patch.
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gavinandresen commented at 3:35 PM on April 20, 2011: contributor
Pulled via cherry-pick.
- gavinandresen closed this on Apr 20, 2011
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