Merge pull request #4134

aa250f0 Remove NumBlocksOfPeers (Wladimir J. van der Laan)

9 files changed, 19 insertions, 75 deletions

diff --git a/src/main.cpp b/src/main.cpp
index a0f4f40cb1..e384f809bf 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -54,8 +54,6 @@ int64_t CTransaction::nMinTxFee = 10000;  // Override with -mintxfee
 /** Fees smaller than this (in satoshi) are considered zero fee (for relaying and mining) */
 int64_t CTransaction::nMinRelayTxFee = 1000;
 
-static CMedianFilter<int> cPeerBlockCounts(8, 0); // Amount of blocks that other nodes claim to have
-
 struct COrphanBlock {
     uint256 hashBlock;
     uint256 hashPrev;
@@ -1307,12 +1305,6 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits)
     return true;
 }
 
-// Return maximum amount of blocks that other nodes claim to have
-int GetNumBlocksOfPeers()
-{
-    return std::max(cPeerBlockCounts.median(), Checkpoints::GetTotalBlocksEstimate());
-}
-
 bool IsInitialBlockDownload()
 {
     LOCK(cs_main);
@@ -3583,9 +3575,6 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
         LogPrintf("receive version message: %s: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", pfrom->cleanSubVer, pfrom->nVersion, pfrom->nStartingHeight, addrMe.ToString(), addrFrom.ToString(), pfrom->addr.ToString());
 
         AddTimeData(pfrom->addr, nTime);
-
-        LOCK(cs_main);
-        cPeerBlockCounts.input(pfrom->nStartingHeight);
     }
 
 
diff --git a/src/main.h b/src/main.h
index c69e0d2a3c..3d3773138d 100644
--- a/src/main.h
+++ b/src/main.h
@@ -160,8 +160,6 @@ void ThreadScriptCheck();
 bool CheckProofOfWork(uint256 hash, unsigned int nBits);
 /** Calculate the minimum amount of work a received block needs, without knowing its direct parent */
 unsigned int ComputeMinWork(unsigned int nBase, int64_t nTime);
-/** Get the number of active peers */
-int GetNumBlocksOfPeers();
 /** Check whether we are doing an initial block download (synchronizing from disk or network) */
 bool IsInitialBlockDownload();
 /** Format a string that describes several potential problems detected by the core */
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index da7762282a..e6190aec13 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -403,8 +403,8 @@ void BitcoinGUI::setClientModel(ClientModel *clientModel)
         setNumConnections(clientModel->getNumConnections());
         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 
-        setNumBlocks(clientModel->getNumBlocks(), clientModel->getNumBlocksOfPeers());
-        connect(clientModel, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
+        setNumBlocks(clientModel->getNumBlocks());
+        connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 
         // Receive and report messages from client model
         connect(clientModel, SIGNAL(message(QString,QString,unsigned int)), this, SLOT(message(QString,QString,unsigned int)));
@@ -617,7 +617,7 @@ void BitcoinGUI::setNumConnections(int count)
     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 }
 
-void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
+void BitcoinGUI::setNumBlocks(int count)
 {
     // Prevent orphan statusbar messages (e.g. hover Quit in main menu, wait until chain-sync starts -> garbelled text)
     statusBar()->clearMessage();
@@ -646,17 +646,10 @@ void BitcoinGUI::setNumBlocks(int count, int nTotalBlocks)
     QDateTime currentDate = QDateTime::currentDateTime();
     int secs = lastBlockDate.secsTo(currentDate);
 
-    if(count < nTotalBlocks)
-    {
-        tooltip = tr("Processed %1 of %2 (estimated) blocks of transaction history.").arg(count).arg(nTotalBlocks);
-    }
-    else
-    {
-        tooltip = tr("Processed %1 blocks of transaction history.").arg(count);
-    }
+    tooltip = tr("Processed %1 blocks of transaction history.").arg(count);
 
     // Set icon state: spinning if catching up, tick otherwise
-    if(secs < 90*60 && count >= nTotalBlocks)
+    if(secs < 90*60)
     {
         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h
index 0cc1ebc502..b4675b95ac 100644
--- a/src/qt/bitcoingui.h
+++ b/src/qt/bitcoingui.h
@@ -130,7 +130,7 @@ public slots:
     /** Set number of connections shown in the UI */
     void setNumConnections(int count);
     /** Set number of blocks shown in the UI */
-    void setNumBlocks(int count, int nTotalBlocks);
+    void setNumBlocks(int count);
 
     /** Notify the user of an event from the core network or transaction handling code.
        @param[in] title     the message box / notification title
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index 3c0564c208..d1f68ebd22 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -23,7 +23,7 @@ static const int64_t nClientStartupTime = GetTime();
 
 ClientModel::ClientModel(OptionsModel *optionsModel, QObject *parent) :
     QObject(parent), optionsModel(optionsModel),
-    cachedNumBlocks(0), cachedNumBlocksOfPeers(0),
+    cachedNumBlocks(0),
     cachedReindexing(0), cachedImporting(0),
     numBlocksAtStartup(-1), pollTimer(0)
 {
@@ -101,19 +101,16 @@ void ClientModel::updateTimer()
     // Some quantities (such as number of blocks) change so fast that we don't want to be notified for each change.
     // Periodically check and update with a timer.
     int newNumBlocks = getNumBlocks();
-    int newNumBlocksOfPeers = getNumBlocksOfPeers();
 
     // check for changed number of blocks we have, number of blocks peers claim to have, reindexing state and importing state
-    if (cachedNumBlocks != newNumBlocks || cachedNumBlocksOfPeers != newNumBlocksOfPeers ||
+    if (cachedNumBlocks != newNumBlocks ||
         cachedReindexing != fReindex || cachedImporting != fImporting)
     {
         cachedNumBlocks = newNumBlocks;
-        cachedNumBlocksOfPeers = newNumBlocksOfPeers;
         cachedReindexing = fReindex;
         cachedImporting = fImporting;
 
-        // ensure we return the maximum of newNumBlocksOfPeers and newNumBlocks to not create weird displays in the GUI
-        emit numBlocksChanged(newNumBlocks, std::max(newNumBlocksOfPeers, newNumBlocks));
+        emit numBlocksChanged(newNumBlocks);
     }
 
     emit bytesChanged(getTotalBytesRecv(), getTotalBytesSent());
@@ -166,11 +163,6 @@ enum BlockSource ClientModel::getBlockSource() const
     return BLOCK_SOURCE_NONE;
 }
 
-int ClientModel::getNumBlocksOfPeers() const
-{
-    return GetNumBlocksOfPeers();
-}
-
 QString ClientModel::getStatusBarWarnings() const
 {
     return QString::fromStdString(GetWarnings("statusbar"));
diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index f29b695ea1..cab853d92d 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -60,8 +60,6 @@ public:
     bool inInitialBlockDownload() const;
     //! Return true if core is importing blocks
     enum BlockSource getBlockSource() const;
-    //! Return conservative estimate of total number of blocks, or 0 if unknown
-    int getNumBlocksOfPeers() const;
     //! Return warnings to be displayed in status bar
     QString getStatusBarWarnings() const;
 
@@ -75,7 +73,6 @@ private:
     OptionsModel *optionsModel;
 
     int cachedNumBlocks;
-    int cachedNumBlocksOfPeers;
     bool cachedReindexing;
     bool cachedImporting;
 
@@ -88,7 +85,7 @@ private:
 
 signals:
     void numConnectionsChanged(int count);
-    void numBlocksChanged(int count, int countOfPeers);
+    void numBlocksChanged(int count);
     void alertsChanged(const QString &warnings);
     void bytesChanged(quint64 totalBytesIn, quint64 totalBytesOut);
 
diff --git a/src/qt/forms/rpcconsole.ui b/src/qt/forms/rpcconsole.ui
index 31d61ec468..fcb6bb60bb 100644
--- a/src/qt/forms/rpcconsole.ui
+++ b/src/qt/forms/rpcconsole.ui
@@ -254,36 +254,13 @@
         </widget>
        </item>
        <item row="11" column="0">
-        <widget class="QLabel" name="label_4">
-         <property name="text">
-          <string>Estimated total blocks</string>
-         </property>
-        </widget>
-       </item>
-       <item row="11" column="1">
-        <widget class="QLabel" name="totalBlocks">
-         <property name="cursor">
-          <cursorShape>IBeamCursor</cursorShape>
-         </property>
-         <property name="text">
-          <string>N/A</string>
-         </property>
-         <property name="textFormat">
-          <enum>Qt::PlainText</enum>
-         </property>
-         <property name="textInteractionFlags">
-          <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
-         </property>
-        </widget>
-       </item>
-       <item row="12" column="0">
         <widget class="QLabel" name="label_2">
          <property name="text">
           <string>Last block time</string>
          </property>
         </widget>
        </item>
-       <item row="12" column="1">
+       <item row="11" column="1">
         <widget class="QLabel" name="lastBlockTime">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
@@ -299,7 +276,7 @@
          </property>
         </widget>
        </item>
-       <item row="13" column="0">
+       <item row="12" column="0">
         <spacer name="verticalSpacer_2">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
@@ -312,7 +289,7 @@
          </property>
         </spacer>
        </item>
-       <item row="14" column="0">
+       <item row="13" column="0">
         <widget class="QLabel" name="labelDebugLogfile">
          <property name="font">
           <font>
@@ -325,7 +302,7 @@
          </property>
         </widget>
        </item>
-       <item row="15" column="0">
+       <item row="14" column="0">
         <widget class="QPushButton" name="openDebugLogfileButton">
          <property name="toolTip">
           <string>Open the Bitcoin debug log file from the current data directory. This can take a few seconds for large log files.</string>
@@ -338,7 +315,7 @@
          </property>
         </widget>
        </item>
-       <item row="16" column="0">
+       <item row="15" column="0">
         <spacer name="verticalSpacer">
          <property name="orientation">
           <enum>Qt::Vertical</enum>
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index ba5871ae2b..0a46a722e4 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -271,8 +271,8 @@ void RPCConsole::setClientModel(ClientModel *model)
         setNumConnections(model->getNumConnections());
         connect(model, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 
-        setNumBlocks(model->getNumBlocks(), model->getNumBlocksOfPeers());
-        connect(model, SIGNAL(numBlocksChanged(int,int)), this, SLOT(setNumBlocks(int,int)));
+        setNumBlocks(model->getNumBlocks());
+        connect(model, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 
         updateTrafficStats(model->getTotalBytesRecv(), model->getTotalBytesSent());
         connect(model, SIGNAL(bytesChanged(quint64,quint64)), this, SLOT(updateTrafficStats(quint64, quint64)));
@@ -366,11 +366,9 @@ void RPCConsole::setNumConnections(int count)
     ui->numberOfConnections->setText(connections);
 }
 
-void RPCConsole::setNumBlocks(int count, int countOfPeers)
+void RPCConsole::setNumBlocks(int count)
 {
     ui->numberOfBlocks->setText(QString::number(count));
-    // If there is no current countOfPeers available display N/A instead of 0, which can't ever be true
-    ui->totalBlocks->setText(countOfPeers == 0 ? tr("N/A") : QString::number(countOfPeers));
     if(clientModel)
         ui->lastBlockTime->setText(clientModel->getLastBlockDate().toString());
 }
diff --git a/src/qt/rpcconsole.h b/src/qt/rpcconsole.h
index f7a7772050..091a6d294f 100644
--- a/src/qt/rpcconsole.h
+++ b/src/qt/rpcconsole.h
@@ -52,7 +52,7 @@ public slots:
     /** Set number of connections shown in the UI */
     void setNumConnections(int count);
     /** Set number of blocks shown in the UI */
-    void setNumBlocks(int count, int countOfPeers);
+    void setNumBlocks(int count);
     /** Go forward or back in history */
     void browseHistory(int offset);
     /** Scroll console view to end */