gui: show maximum mempool size in information window

Author: theStack

src/qt/clientmodel.cpp

@@ -53,7 +53,7 @@ ClientModel::ClientModel(interfaces::Node& node, OptionsModel *_optionsModel, QO
     connect(timer, &QTimer::timeout, [this] {
         // no locking required at this point
         // the following calls will acquire the required lock
-        Q_EMIT mempoolSizeChanged(m_node.getMempoolSize(), m_node.getMempoolDynamicUsage());
+        Q_EMIT mempoolSizeChanged(m_node.getMempoolSize(), m_node.getMempoolDynamicUsage(), m_node.getMempoolMaxUsage());
         Q_EMIT bytesChanged(m_node.getTotalBytesRecv(), m_node.getTotalBytesSent());
     });
     connect(m_thread, &QThread::finished, timer, &QObject::deleteLater);

src/qt/clientmodel.h

@@ -113,7 +113,7 @@ class ClientModel : public QObject
 Q_SIGNALS:
     void numConnectionsChanged(int count);
     void numBlocksChanged(int count, const QDateTime& blockDate, double nVerificationProgress, SyncType header, SynchronizationState sync_state);
-    void mempoolSizeChanged(long count, size_t mempoolSizeInBytes);
+    void mempoolSizeChanged(long count, size_t mempoolSizeInBytes, size_t mempoolMaxSizeInBytes);
     void networkActiveChanged(bool networkActive);
     void alertsChanged(const QString &warnings);
     void bytesChanged(quint64 totalBytesIn, quint64 totalBytesOut);

src/qt/rpcconsole.cpp

@@ -1000,15 +1000,16 @@ void RPCConsole::setNumBlocks(int count, const QDateTime& blockDate, double nVer
     }
 }
 
-void RPCConsole::setMempoolSize(long numberOfTxs, size_t dynUsage)
+void RPCConsole::setMempoolSize(long numberOfTxs, size_t dynUsage, size_t maxUsage)
 {
     ui->mempoolNumberTxs->setText(QString::number(numberOfTxs));
 
-    if (dynUsage < 1000000) {
-        ui->mempoolSize->setText(QObject::tr("%1 kB").arg(dynUsage / 1000.0, 0, 'f', 2));
-    } else {
-        ui->mempoolSize->setText(QObject::tr("%1 MB").arg(dynUsage / 1000000.0, 0, 'f', 2));
-    }
+    const auto cur_usage_str = dynUsage < 1000000 ?
+        QObject::tr("%1 kB").arg(dynUsage / 1000.0, 0, 'f', 2) :
+        QObject::tr("%1 MB").arg(dynUsage / 1000000.0, 0, 'f', 2);
+    const auto max_usage_str = QObject::tr("%1 MB").arg(maxUsage / 1000000.0, 0, 'f', 2);
+
+    ui->mempoolSize->setText(cur_usage_str + " / " + max_usage_str);
 }
 
 void RPCConsole::on_lineEdit_returnPressed()
@@ -1400,4 +1401,4 @@ void RPCConsole::updateWindowTitle()
     const QString chainType = QString::fromStdString(Params().GetChainTypeString());
     const QString title = tr("Node window - [%1]").arg(chainType);
     this->setWindowTitle(title);
-}
+}

src/qt/rpcconsole.h

@@ -121,7 +121,7 @@ public Q_SLOTS:
     /** Set number of blocks and last block date shown in the UI */
     void setNumBlocks(int count, const QDateTime& blockDate, double nVerificationProgress, SyncType synctype);
     /** Set size (number of transactions and memory usage) of the mempool in the UI */
-    void setMempoolSize(long numberOfTxs, size_t dynUsage);
+    void setMempoolSize(long numberOfTxs, size_t dynUsage, size_t maxUsage);
     /** Go forward or back in history */
     void browseHistory(int offset);
     /** Scroll console view to end */