diff options
Diffstat (limited to 'src/wallet/wallet.cpp')
-rw-r--r-- | src/wallet/wallet.cpp | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 8e31950beb..8df39b9f75 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -162,10 +162,14 @@ bool RemoveWallet(WalletContext& context, const std::shared_ptr<CWallet>& wallet // Unregister with the validation interface which also drops shared pointers. wallet->m_chain_notifications_handler.reset(); - LOCK(context.wallets_mutex); - std::vector<std::shared_ptr<CWallet>>::iterator i = std::find(context.wallets.begin(), context.wallets.end(), wallet); - if (i == context.wallets.end()) return false; - context.wallets.erase(i); + { + LOCK(context.wallets_mutex); + std::vector<std::shared_ptr<CWallet>>::iterator i = std::find(context.wallets.begin(), context.wallets.end(), wallet); + if (i == context.wallets.end()) return false; + context.wallets.erase(i); + } + // Notify unload so that upper layers release the shared pointer. + wallet->NotifyUnload(); // Write the wallet setting UpdateWalletSetting(chain, name, load_on_start, warnings); @@ -223,38 +227,35 @@ static std::set<std::string> g_loading_wallet_set GUARDED_BY(g_loading_wallet_mu static std::set<std::string> g_unloading_wallet_set GUARDED_BY(g_wallet_release_mutex); // Custom deleter for shared_ptr<CWallet>. -static void ReleaseWallet(CWallet* wallet) +static void FlushAndDeleteWallet(CWallet* wallet) { const std::string name = wallet->GetName(); - wallet->WalletLogPrintf("Releasing wallet\n"); + wallet->WalletLogPrintf("Releasing wallet %s..\n", name); wallet->Flush(); delete wallet; - // Wallet is now released, notify UnloadWallet, if any. + // Wallet is now released, notify WaitForDeleteWallet, if any. { LOCK(g_wallet_release_mutex); if (g_unloading_wallet_set.erase(name) == 0) { - // UnloadWallet was not called for this wallet, all done. + // WaitForDeleteWallet was not called for this wallet, all done. return; } } g_wallet_release_cv.notify_all(); } -void UnloadWallet(std::shared_ptr<CWallet>&& wallet) +void WaitForDeleteWallet(std::shared_ptr<CWallet>&& wallet) { // Mark wallet for unloading. const std::string name = wallet->GetName(); { LOCK(g_wallet_release_mutex); - auto it = g_unloading_wallet_set.insert(name); - assert(it.second); + g_unloading_wallet_set.insert(name); + // Do not expect to be the only one removing this wallet. + // Multiple threads could simultaneously be waiting for deletion. } - // The wallet can be in use so it's not possible to explicitly unload here. - // Notify the unload intent so that all remaining shared pointers are - // released. - wallet->NotifyUnload(); - // Time to ditch our shared_ptr and wait for ReleaseWallet call. + // Time to ditch our shared_ptr and wait for FlushAndDeleteWallet call. wallet.reset(); { WAIT_LOCK(g_wallet_release_mutex, lock); @@ -1037,9 +1038,8 @@ bool CWallet::IsSpentKey(const CScript& scriptPubKey) const if (IsAddressPreviouslySpent(dest)) { return true; } - if (IsLegacy()) { - LegacyScriptPubKeyMan* spk_man = GetLegacyScriptPubKeyMan(); - assert(spk_man != nullptr); + + if (LegacyScriptPubKeyMan* spk_man = GetLegacyScriptPubKeyMan()) { for (const auto& keyid : GetAffectedKeys(scriptPubKey, *spk_man)) { WitnessV0KeyHash wpkh_dest(keyid); if (IsAddressPreviouslySpent(wpkh_dest)) { @@ -1625,7 +1625,9 @@ isminetype CWallet::IsMine(const CScript& script) const } // Legacy wallet - if (IsLegacy()) return GetLegacyScriptPubKeyMan()->IsMine(script); + if (LegacyScriptPubKeyMan* spkm = GetLegacyScriptPubKeyMan()) { + return spkm->IsMine(script); + } return ISMINE_NO; } @@ -2971,7 +2973,7 @@ std::shared_ptr<CWallet> CWallet::Create(WalletContext& context, const std::stri const auto start{SteadyClock::now()}; // TODO: Can't use std::make_shared because we need a custom deleter but // should be possible to use std::allocate_shared. - std::shared_ptr<CWallet> walletInstance(new CWallet(chain, name, std::move(database)), ReleaseWallet); + std::shared_ptr<CWallet> walletInstance(new CWallet(chain, name, std::move(database)), FlushAndDeleteWallet); walletInstance->m_keypool_size = std::max(args.GetIntArg("-keypool", DEFAULT_KEYPOOL_SIZE), int64_t{1}); walletInstance->m_notify_tx_changed_script = args.GetArg("-walletnotify", ""); @@ -3558,7 +3560,8 @@ std::set<ScriptPubKeyMan*> CWallet::GetScriptPubKeyMans(const CScript& script) c Assume(std::all_of(spk_mans.begin(), spk_mans.end(), [&script, &sigdata](ScriptPubKeyMan* spkm) { return spkm->CanProvide(script, sigdata); })); // Legacy wallet - if (IsLegacy() && GetLegacyScriptPubKeyMan()->CanProvide(script, sigdata)) spk_mans.insert(GetLegacyScriptPubKeyMan()); + LegacyScriptPubKeyMan* spkm = GetLegacyScriptPubKeyMan(); + if (spkm && spkm->CanProvide(script, sigdata)) spk_mans.insert(spkm); return spk_mans; } @@ -3588,7 +3591,8 @@ std::unique_ptr<SigningProvider> CWallet::GetSolvingProvider(const CScript& scri } // Legacy wallet - if (IsLegacy() && GetLegacyScriptPubKeyMan()->CanProvide(script, sigdata)) return GetLegacyScriptPubKeyMan()->GetSolvingProvider(script); + LegacyScriptPubKeyMan* spkm = GetLegacyScriptPubKeyMan(); + if (spkm && spkm->CanProvide(script, sigdata)) return spkm->GetSolvingProvider(script); return nullptr; } @@ -3845,11 +3849,7 @@ void CWallet::DeactivateScriptPubKeyMan(uint256 id, OutputType type, bool intern bool CWallet::IsLegacy() const { - if (m_internal_spk_managers.count(OutputType::LEGACY) == 0) { - return false; - } - auto spk_man = dynamic_cast<LegacyScriptPubKeyMan*>(m_internal_spk_managers.at(OutputType::LEGACY)); - return spk_man != nullptr; + return !IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS); } DescriptorScriptPubKeyMan* CWallet::GetDescriptorScriptPubKeyMan(const WalletDescriptor& desc) const @@ -4387,7 +4387,7 @@ util::Result<MigrationResult> MigrateLegacyToDescriptor(const std::string& walle if (!RemoveWallet(context, wallet, /*load_on_start=*/std::nullopt, warnings)) { return util::Error{_("Unable to unload the wallet before migrating")}; } - UnloadWallet(std::move(wallet)); + WaitForDeleteWallet(std::move(wallet)); was_loaded = true; } else { // Check if the wallet is BDB @@ -4531,7 +4531,7 @@ util::Result<MigrationResult> MigrateLegacyToDescriptor(const std::string& walle error += _("\nUnable to cleanup failed migration"); return util::Error{error}; } - UnloadWallet(std::move(w)); + WaitForDeleteWallet(std::move(w)); } else { // Unloading for wallets in local context assert(w.use_count() == 1); |