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https://github.com/bitcoin/bitcoin.git
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qt: Move transaction notification to transaction table model
Move transaction new/update notification to TransactionTableModel. This moves the concerns to where they're actually handled. No need to bounce this through wallet model. - Do wallet transaction preprocessing on signal handler side; avoids locking cs_main/cs_wallet on notification in GUI thread (except for new transactions)
This commit is contained in:
Wladimir J. van der Laan
@@ -91,87 +91,80 @@ public:
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Call with transaction that was added, removed or changed.
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*/
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void updateWallet(const uint256 &hash, int status)
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void updateWallet(const uint256 &hash, int status, bool showTransaction)
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{
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qDebug() << "TransactionTablePriv::updateWallet : " + QString::fromStdString(hash.ToString()) + " " + QString::number(status);
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// Find bounds of this transaction in model
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QList<TransactionRecord>::iterator lower = qLowerBound(
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cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
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QList<TransactionRecord>::iterator upper = qUpperBound(
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cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
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int lowerIndex = (lower - cachedWallet.begin());
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int upperIndex = (upper - cachedWallet.begin());
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bool inModel = (lower != upper);
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if(status == CT_UPDATED)
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{
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LOCK2(cs_main, wallet->cs_wallet);
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if(showTransaction && !inModel)
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status = CT_NEW; /* Not in model, but want to show, treat as new */
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if(!showTransaction && inModel)
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status = CT_DELETED; /* In model, but want to hide, treat as deleted */
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}
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// Find transaction in wallet
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std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
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bool inWallet = mi != wallet->mapWallet.end();
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qDebug() << " inModel=" + QString::number(inModel) +
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" Index=" + QString::number(lowerIndex) + "-" + QString::number(upperIndex) +
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" showTransaction=" + QString::number(showTransaction) + " derivedStatus=" + QString::number(status);
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// Find bounds of this transaction in model
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QList<TransactionRecord>::iterator lower = qLowerBound(
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cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
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QList<TransactionRecord>::iterator upper = qUpperBound(
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cachedWallet.begin(), cachedWallet.end(), hash, TxLessThan());
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int lowerIndex = (lower - cachedWallet.begin());
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int upperIndex = (upper - cachedWallet.begin());
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bool inModel = (lower != upper);
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// Determine whether to show transaction or not
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bool showTransaction = (inWallet && TransactionRecord::showTransaction(mi->second));
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if(status == CT_UPDATED)
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switch(status)
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{
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case CT_NEW:
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if(inModel)
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{
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if(showTransaction && !inModel)
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status = CT_NEW; /* Not in model, but want to show, treat as new */
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if(!showTransaction && inModel)
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status = CT_DELETED; /* In model, but want to hide, treat as deleted */
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qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is already in model";
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break;
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}
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qDebug() << " inWallet=" + QString::number(inWallet) + " inModel=" + QString::number(inModel) +
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" Index=" + QString::number(lowerIndex) + "-" + QString::number(upperIndex) +
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" showTransaction=" + QString::number(showTransaction) + " derivedStatus=" + QString::number(status);
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switch(status)
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if(showTransaction)
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{
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case CT_NEW:
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if(inModel)
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{
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qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is already in model";
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break;
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}
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if(!inWallet)
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LOCK2(cs_main, wallet->cs_wallet);
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// Find transaction in wallet
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std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
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if(mi == wallet->mapWallet.end())
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{
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qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is not in wallet";
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break;
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}
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if(showTransaction)
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// Added -- insert at the right position
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QList<TransactionRecord> toInsert =
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TransactionRecord::decomposeTransaction(wallet, mi->second);
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if(!toInsert.isEmpty()) /* only if something to insert */
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{
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// Added -- insert at the right position
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QList<TransactionRecord> toInsert =
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TransactionRecord::decomposeTransaction(wallet, mi->second);
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if(!toInsert.isEmpty()) /* only if something to insert */
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parent->beginInsertRows(QModelIndex(), lowerIndex, lowerIndex+toInsert.size()-1);
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int insert_idx = lowerIndex;
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foreach(const TransactionRecord &rec, toInsert)
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{
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parent->beginInsertRows(QModelIndex(), lowerIndex, lowerIndex+toInsert.size()-1);
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int insert_idx = lowerIndex;
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foreach(const TransactionRecord &rec, toInsert)
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{
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cachedWallet.insert(insert_idx, rec);
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insert_idx += 1;
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}
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parent->endInsertRows();
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cachedWallet.insert(insert_idx, rec);
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insert_idx += 1;
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}
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parent->endInsertRows();
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}
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break;
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case CT_DELETED:
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if(!inModel)
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{
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qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_DELETED, but transaction is not in model";
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break;
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}
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// Removed -- remove entire transaction from table
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parent->beginRemoveRows(QModelIndex(), lowerIndex, upperIndex-1);
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cachedWallet.erase(lower, upper);
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parent->endRemoveRows();
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break;
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case CT_UPDATED:
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// Miscellaneous updates -- nothing to do, status update will take care of this, and is only computed for
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// visible transactions.
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}
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break;
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case CT_DELETED:
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if(!inModel)
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{
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qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_DELETED, but transaction is not in model";
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break;
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}
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// Removed -- remove entire transaction from table
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parent->beginRemoveRows(QModelIndex(), lowerIndex, upperIndex-1);
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cachedWallet.erase(lower, upper);
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parent->endRemoveRows();
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break;
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case CT_UPDATED:
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// Miscellaneous updates -- nothing to do, status update will take care of this, and is only computed for
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// visible transactions.
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break;
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}
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}
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@@ -230,16 +223,20 @@ TransactionTableModel::TransactionTableModel(CWallet* wallet, WalletModel *paren
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QAbstractTableModel(parent),
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wallet(wallet),
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walletModel(parent),
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priv(new TransactionTablePriv(wallet, this))
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priv(new TransactionTablePriv(wallet, this)),
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fProcessingQueuedTransactions(false)
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{
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columns << QString() << QString() << tr("Date") << tr("Type") << tr("Address") << BitcoinUnits::getAmountColumnTitle(walletModel->getOptionsModel()->getDisplayUnit());
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priv->refreshWallet();
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connect(walletModel->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
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subscribeToCoreSignals();
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}
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TransactionTableModel::~TransactionTableModel()
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{
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unsubscribeFromCoreSignals();
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delete priv;
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}
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@@ -250,12 +247,12 @@ void TransactionTableModel::updateAmountColumnTitle()
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emit headerDataChanged(Qt::Horizontal,Amount,Amount);
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}
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void TransactionTableModel::updateTransaction(const QString &hash, int status)
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void TransactionTableModel::updateTransaction(const QString &hash, int status, bool showTransaction)
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{
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uint256 updated;
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updated.SetHex(hash.toStdString());
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priv->updateWallet(updated, status);
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priv->updateWallet(updated, status, showTransaction);
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}
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void TransactionTableModel::updateConfirmations()
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@@ -649,3 +646,82 @@ void TransactionTableModel::updateDisplayUnit()
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updateAmountColumnTitle();
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emit dataChanged(index(0, Amount), index(priv->size()-1, Amount));
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}
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// queue notifications to show a non freezing progress dialog e.g. for rescan
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struct TransactionNotification
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{
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public:
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TransactionNotification() {}
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TransactionNotification(uint256 hash, ChangeType status, bool showTransaction):
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hash(hash), status(status), showTransaction(showTransaction) {}
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void invoke(QObject *ttm)
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{
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QString strHash = QString::fromStdString(hash.GetHex());
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qDebug() << "NotifyTransactionChanged : " + strHash + " status= " + QString::number(status);
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QMetaObject::invokeMethod(ttm, "updateTransaction", Qt::QueuedConnection,
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Q_ARG(QString, strHash),
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Q_ARG(int, status),
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Q_ARG(bool, showTransaction));
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}
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private:
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uint256 hash;
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ChangeType status;
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bool showTransaction;
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};
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static bool fQueueNotifications = false;
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static std::vector< TransactionNotification > vQueueNotifications;
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static void NotifyTransactionChanged(TransactionTableModel *ttm, CWallet *wallet, const uint256 &hash, ChangeType status)
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{
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// Find transaction in wallet
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std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
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// Determine whether to show transaction or not (determine this here so that no relocking is needed in GUI thread)
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bool inWallet = mi != wallet->mapWallet.end();
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bool showTransaction = (inWallet && TransactionRecord::showTransaction(mi->second));
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TransactionNotification notification(hash, status, showTransaction);
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if (fQueueNotifications)
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{
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vQueueNotifications.push_back(notification);
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return;
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}
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notification.invoke(ttm);
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}
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static void ShowProgress(TransactionTableModel *ttm, const std::string &title, int nProgress)
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{
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if (nProgress == 0)
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fQueueNotifications = true;
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if (nProgress == 100)
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{
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fQueueNotifications = false;
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if (vQueueNotifications.size() > 10) // prevent balloon spam, show maximum 10 balloons
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QMetaObject::invokeMethod(ttm, "setProcessingQueuedTransactions", Qt::QueuedConnection, Q_ARG(bool, true));
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for (unsigned int i = 0; i < vQueueNotifications.size(); ++i)
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{
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if (vQueueNotifications.size() - i <= 10)
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QMetaObject::invokeMethod(ttm, "setProcessingQueuedTransactions", Qt::QueuedConnection, Q_ARG(bool, false));
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vQueueNotifications[i].invoke(ttm);
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}
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std::vector<TransactionNotification >().swap(vQueueNotifications); // clear
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}
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}
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void TransactionTableModel::subscribeToCoreSignals()
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{
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// Connect signals to wallet
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wallet->NotifyTransactionChanged.connect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
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wallet->ShowProgress.connect(boost::bind(ShowProgress, this, _1, _2));
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}
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void TransactionTableModel::unsubscribeFromCoreSignals()
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{
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// Disconnect signals from wallet
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wallet->NotifyTransactionChanged.disconnect(boost::bind(NotifyTransactionChanged, this, _1, _2, _3));
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wallet->ShowProgress.disconnect(boost::bind(ShowProgress, this, _1, _2));
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}
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