From 2b9e07c44f9a90fb535c16c8fdfec0e6a250b3d1 Mon Sep 17 00:00:00 2001
From: Luke Dashjr <luke-jr+git@utopios.org>
Date: Sat, 21 May 2022 05:41:56 +0000
Subject: [PATCH] Qt/Options: Configure limitancestorsize using rwconf

---
 src/qt/optionsdialog.cpp |  6 ++++++
 src/qt/optionsdialog.h   |  1 +
 src/qt/optionsmodel.cpp  | 11 +++++++++++
 src/qt/optionsmodel.h    |  1 +
 4 files changed, 19 insertions(+)

diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp
index d7621764da..6f0ca3a2fa 100644
--- a/src/qt/optionsdialog.cpp
+++ b/src/qt/optionsdialog.cpp
@@ -240,6 +240,11 @@ OptionsDialog::OptionsDialog(QWidget* parent, bool enableWallet)
     limitancestorcount->setMaximum(std::numeric_limits<int>::max());
     CreateOptionUI(verticalLayout_Spamfiltering, limitancestorcount, tr("Ignore transactions with %s or more unconfirmed ancestors."));
 
+    limitancestorsize = new QSpinBox(groupBox_Spamfiltering);
+    limitancestorsize->setMinimum(1);
+    limitancestorsize->setMaximum(std::numeric_limits<int>::max());
+    CreateOptionUI(verticalLayout_Spamfiltering, limitancestorsize, tr("Ignore transactions whose size with all unconfirmed ancestors exceeds %s kilobytes."));
+
     verticalLayout_Mempool->addWidget(groupBox_Spamfiltering);
 
     verticalLayout_Mempool->addItem(new QSpacerItem(20, 40, QSizePolicy::Minimum, QSizePolicy::Expanding));
@@ -486,6 +491,7 @@ void OptionsDialog::setMapper()
     mapper->addMapping(bytespersigop, OptionsModel::bytespersigop);
     mapper->addMapping(bytespersigopstrict, OptionsModel::bytespersigopstrict);
     mapper->addMapping(limitancestorcount, OptionsModel::limitancestorcount);
+    mapper->addMapping(limitancestorsize, OptionsModel::limitancestorsize);
 
     /* Window */
 #ifndef Q_OS_MACOS
diff --git a/src/qt/optionsdialog.h b/src/qt/optionsdialog.h
index 0a8ec0164d..e5e6dee159 100644
--- a/src/qt/optionsdialog.h
+++ b/src/qt/optionsdialog.h
@@ -97,6 +97,7 @@ private:
     QCheckBox *rejectunknownscripts;
     QSpinBox *bytespersigop, *bytespersigopstrict;
     QSpinBox *limitancestorcount;
+    QSpinBox *limitancestorsize;
 };
 
 #endif // BITCOIN_QT_OPTIONSDIALOG_H
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index c7e1d02113..282f0bd9fd 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -627,6 +627,8 @@ QVariant OptionsModel::getOption(OptionID option, const std::string& suffix) con
         return nBytesPerSigOpStrict;
     case limitancestorcount:
         return qlonglong(node().mempool().m_limits.ancestor_count);
+    case limitancestorsize:
+        return qlonglong(node().mempool().m_limits.ancestor_size_vbytes / 1'000);
     default:
         return QVariant();
     }
@@ -1028,6 +1030,15 @@ bool OptionsModel::setOption(OptionID option, const QVariant& value, const std::
             gArgs.ModifyRWConfigFile("limitancestorcount", strNv);
         }
         break;
+    case limitancestorsize:
+        if (changed()) {
+            long long nNv = value.toLongLong();
+            std::string strNv = value.toString().toStdString();
+            node().mempool().m_limits.ancestor_size_vbytes = nNv * 1'000;
+            gArgs.ForceSetArg("-limitancestorsize", strNv);
+            gArgs.ModifyRWConfigFile("limitancestorsize", strNv);
+        }
+        break;
     default:
         break;
     }
diff --git a/src/qt/optionsmodel.h b/src/qt/optionsmodel.h
index 849acb8517..d8af8d68b4 100644
--- a/src/qt/optionsmodel.h
+++ b/src/qt/optionsmodel.h
@@ -88,6 +88,7 @@ public:
         bytespersigop,
         bytespersigopstrict,
         limitancestorcount,
+        limitancestorsize,
         OptionIDRowCount,
     };