Files
bitcoin/src/bench/wallet_migration.cpp
Ava Chow 9a7604fd25 bench: Use setup() in WalletMigration to prepare the legacy wallet
WalletMigration needs a new wallet with legacy records for each run of
the benchmark. This can be done in setup() rather than duplicating the
records of an initial wallet.
2026-04-29 14:49:39 -07:00

93 lines
3.6 KiB
C++

// Copyright (c) 2024-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or https://www.opensource.org/licenses/mit-license.php.
#include <bench/bench.h>
#include <interfaces/chain.h>
#include <interfaces/wallet.h>
#include <kernel/chain.h>
#include <kernel/types.h>
#include <node/context.h>
#include <test/util/mining.h>
#include <test/util/setup_common.h>
#include <wallet/context.h>
#include <wallet/receive.h>
#include <wallet/test/util.h>
#include <wallet/wallet.h>
#include <optional>
namespace wallet{
static void WalletMigration(benchmark::Bench& bench)
{
const auto test_setup{MakeNoLogFileContext<TestingSetup>()};
const auto loader{MakeWalletLoader(*test_setup->m_node.chain, test_setup->m_args)};
// Number of imported watch only addresses
int NUM_WATCH_ONLY_ADDR = 20;
// Add watch-only addresses
std::vector<std::pair<CScript, CTxDestination>> scripts_watch_only;
for (int w = 0; w < NUM_WATCH_ONLY_ADDR; ++w) {
CKey key = GenerateRandomKey();
const PKHash dest{key.GetPubKey()};
scripts_watch_only.emplace_back(GetScriptForDestination(dest), dest);
}
// Generate transactions and local addresses
std::vector<CKey> keys(500);
std::ranges::generate(keys, []{ return GenerateRandomKey(); });
std::unique_ptr<CWallet> wallet;
size_t i = 0;
bench.epochs(/*numEpochs=*/1) // run the migration exactly once
.setup([&] {
// Setup legacy wallet
wallet = std::make_unique<CWallet>(test_setup->m_node.chain.get(), std::string(i++, 'A'), CreateMockableWalletDatabase());
LegacyDataSPKM* legacy_spkm = wallet->GetOrCreateLegacyDataSPKM();
WalletBatch batch{wallet->GetDatabase()};
LOCK(wallet->cs_wallet);
// Write a best block record as migration expects one to exist
CBlockLocator loc;
batch.WriteBestBlock(loc);
// Add watch-only addresses
for (size_t w = 0; w < scripts_watch_only.size(); ++w) {
const auto& [script, dest] = scripts_watch_only.at(w);
assert(legacy_spkm->LoadWatchOnly(script));
assert(wallet->SetAddressBook(dest, strprintf("watch_%d", w), /*purpose=*/std::nullopt));
batch.WriteWatchOnly(script, CKeyMetadata());
}
// Generate transactions and local addresses
for (size_t j = 0; j < keys.size(); ++j) {
const CKey& key = keys.at(j);
// Load key, scripts and create address book record
CPubKey pubkey = key.GetPubKey();
Assert(legacy_spkm->LoadKey(key, pubkey));
CTxDestination dest{PKHash(pubkey)};
Assert(wallet->SetAddressBook(dest, strprintf("legacy_%d", j), /*purpose=*/std::nullopt));
CMutableTransaction mtx;
mtx.vout.emplace_back(COIN, GetScriptForDestination(dest));
mtx.vout.emplace_back(COIN, scripts_watch_only.at(j % NUM_WATCH_ONLY_ADDR).first);
mtx.vin.resize(2);
wallet->AddToWallet(MakeTransactionRef(mtx), TxStateInactive{}, /*update_wtx=*/nullptr, /*rescanning_old_block=*/true);
batch.WriteKey(pubkey, key.GetPrivKey(), CKeyMetadata());
}
})
.run([&] {
auto res{MigrateLegacyToDescriptor(std::move(wallet), /*passphrase=*/"", *loader->context())};
assert(res);
assert(res->wallet);
assert(res->watchonly_wallet);
});
}
BENCHMARK(WalletMigration);
} // namespace wallet