From 1b66f6e556631a1a2d89aefba70a79894bd14fcd Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Mon, 22 Feb 2021 09:55:10 +0200
Subject: qt: Drop PeerTablePriv class

This commit does not change behavior.
---
 src/qt/peertablemodel.cpp | 61 ++++++++++++-----------------------------------
 src/qt/peertablemodel.h   |  8 ++++---
 2 files changed, 20 insertions(+), 49 deletions(-)

diff --git a/src/qt/peertablemodel.cpp b/src/qt/peertablemodel.cpp
index de567aacb7..fe03365d76 100644
--- a/src/qt/peertablemodel.cpp
+++ b/src/qt/peertablemodel.cpp
@@ -14,52 +14,11 @@
 #include <QList>
 #include <QTimer>
 
-// private implementation
-class PeerTablePriv
-{
-public:
-    /** Local cache of peer information */
-    QList<CNodeCombinedStats> cachedNodeStats;
-
-    /** Pull a full list of peers from vNodes into our cache */
-    void refreshPeers(interfaces::Node& node)
-    {
-            cachedNodeStats.clear();
-
-            interfaces::Node::NodesStats nodes_stats;
-            node.getNodesStats(nodes_stats);
-            cachedNodeStats.reserve(nodes_stats.size());
-            for (const auto& node_stats : nodes_stats)
-            {
-                CNodeCombinedStats stats;
-                stats.nodeStats = std::get<0>(node_stats);
-                stats.fNodeStateStatsAvailable = std::get<1>(node_stats);
-                stats.nodeStateStats = std::get<2>(node_stats);
-                cachedNodeStats.append(stats);
-            }
-    }
-
-    int size() const
-    {
-        return cachedNodeStats.size();
-    }
-
-    CNodeCombinedStats *index(int idx)
-    {
-        if (idx >= 0 && idx < cachedNodeStats.size())
-            return &cachedNodeStats[idx];
-
-        return nullptr;
-    }
-};
-
 PeerTableModel::PeerTableModel(interfaces::Node& node, QObject* parent) :
     QAbstractTableModel(parent),
     m_node(node),
     timer(nullptr)
 {
-    priv.reset(new PeerTablePriv());
-
     // set up timer for auto refresh
     timer = new QTimer(this);
     connect(timer, &QTimer::timeout, this, &PeerTableModel::refresh);
@@ -89,7 +48,7 @@ int PeerTableModel::rowCount(const QModelIndex& parent) const
     if (parent.isValid()) {
         return 0;
     }
-    return priv->size();
+    return m_peers_data.size();
 }
 
 int PeerTableModel::columnCount(const QModelIndex& parent) const
@@ -175,16 +134,26 @@ Qt::ItemFlags PeerTableModel::flags(const QModelIndex &index) const
 QModelIndex PeerTableModel::index(int row, int column, const QModelIndex& parent) const
 {
     Q_UNUSED(parent);
-    CNodeCombinedStats *data = priv->index(row);
 
-    if (data)
-        return createIndex(row, column, data);
+    if (0 <= row && row < rowCount() && 0 <= column && column < columnCount()) {
+        return createIndex(row, column, const_cast<CNodeCombinedStats*>(&m_peers_data[row]));
+    }
+
     return QModelIndex();
 }
 
 void PeerTableModel::refresh()
 {
+    interfaces::Node::NodesStats nodes_stats;
+    m_node.getNodesStats(nodes_stats);
+    decltype(m_peers_data) new_peers_data;
+    new_peers_data.reserve(nodes_stats.size());
+    for (const auto& node_stats : nodes_stats) {
+        const CNodeCombinedStats stats{std::get<0>(node_stats), std::get<2>(node_stats), std::get<1>(node_stats)};
+        new_peers_data.append(stats);
+    }
+
     Q_EMIT layoutAboutToBeChanged();
-    priv->refreshPeers(m_node);
+    m_peers_data.swap(new_peers_data);
     Q_EMIT layoutChanged();
 }
diff --git a/src/qt/peertablemodel.h b/src/qt/peertablemodel.h
index dc2802d4a9..0d841ebf28 100644
--- a/src/qt/peertablemodel.h
+++ b/src/qt/peertablemodel.h
@@ -8,10 +8,11 @@
 #include <net_processing.h> // For CNodeStateStats
 #include <net.h>
 
-#include <memory>
-
 #include <QAbstractTableModel>
+#include <QList>
+#include <QModelIndex>
 #include <QStringList>
+#include <QVariant>
 
 class PeerTablePriv;
 
@@ -73,6 +74,8 @@ public Q_SLOTS:
     void refresh();
 
 private:
+    //! Internal peer data structure.
+    QList<CNodeCombinedStats> m_peers_data{};
     interfaces::Node& m_node;
     const QStringList columns{
         /*: Title of Peers Table column which contains a
@@ -99,7 +102,6 @@ private:
         /*: Title of Peers Table column which contains the peer's
             User Agent string. */
         tr("User Agent")};
-    std::unique_ptr<PeerTablePriv> priv;
     QTimer *timer;
 };
 
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