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Merge #15433: Use a single wallet batch for UpgradeKeyMetadata

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0bedcbafd Use a single wallet batch for UpgradeKeyMetadata (Jonas Schnelli)

Pull request description:

  Opening wallets (the first time) after #14021 took on my end around 30 seconds due to the keymetadata migration (tested on regtest).

  Using a single wallet batch reduces the required time for the migration down to <1s on my system for a default 2k keypool wallet.

Tree-SHA512: f68739e452d382f5294186f47511b94884a1a0868688dd3179034a7e091a67f93bc9dd45cdfc9fa6b1fe90362772b719278012f2f56b752b803c87db8597a7b0
This commit is contained in:
MeshCollider 2019-02-19 09:38:53 +13:00
commit 904308dca3
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1 changed files with 8 additions and 1 deletions
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9
src/wallet/wallet.cpp
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@ -371,6 +371,8 @@ void CWallet::UpgradeKeyMetadata()
return;
}
std::unique_ptr<WalletBatch> batch = MakeUnique<WalletBatch>(*database);
size_t cnt = 0;
for (auto& meta_pair : mapKeyMetadata) {
CKeyMetadata& meta = meta_pair.second;
if (!meta.hd_seed_id.IsNull() && !meta.has_key_origin && meta.hdKeypath != "s") { // If the hdKeypath is "s", that's the seed and it doesn't have a key origin
@ -392,10 +394,15 @@ void CWallet::UpgradeKeyMetadata()
// Write meta to wallet
CPubKey pubkey;
if (GetPubKey(meta_pair.first, pubkey)) {
WriteKeyMetadata(meta, pubkey, true);
batch->WriteKeyMetadata(meta, pubkey, true);
if (++cnt % 1000 == 0) {
// avoid creating overlarge in-memory batches in case the wallet contains large amounts of keys
batch.reset(new WalletBatch(*database));
}
}
}
}
batch.reset(); //write before setting the flag
SetWalletFlag(WALLET_FLAG_KEY_ORIGIN_METADATA);
}