From 96cb597325f64cadb3cf43e2cdb3d7c1e2e49891 Mon Sep 17 00:00:00 2001
From: Russell Yanofsky <russ@yanofsky.org>
Date: Wed, 1 Aug 2018 13:38:45 -0400
Subject: gui: Avoid redundant tx status updates

In TransactionTablePriv::index, avoid calling
interfaces::Wallet::tryGetTxStatus if the status is up to date as of the most
recent NotifyBlockTip notification.  Store height from the most recent
notification in a new ClientModel::cachedNumBlocks variable in order to check
this.

This avoids floods of IPC traffic from tryGetTxStatus with #10102 when there
are a lot of transactions. It might also make the GUI a little more efficient
even when there is no IPC.
---
 src/qt/walletcontroller.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'src/qt/walletcontroller.cpp')

diff --git a/src/qt/walletcontroller.cpp b/src/qt/walletcontroller.cpp
index 7413a1f09e..f1dd149a0f 100644
--- a/src/qt/walletcontroller.cpp
+++ b/src/qt/walletcontroller.cpp
@@ -5,6 +5,7 @@
 #include <qt/walletcontroller.h>
 
 #include <qt/askpassphrasedialog.h>
+#include <qt/clientmodel.h>
 #include <qt/createwalletdialog.h>
 #include <qt/guiconstants.h>
 #include <qt/guiutil.h>
@@ -24,13 +25,14 @@
 #include <QTimer>
 #include <QWindow>
 
-WalletController::WalletController(interfaces::Node& node, const PlatformStyle* platform_style, OptionsModel* options_model, QObject* parent)
+WalletController::WalletController(ClientModel& client_model, const PlatformStyle* platform_style, QObject* parent)
     : QObject(parent)
     , m_activity_thread(new QThread(this))
     , m_activity_worker(new QObject)
-    , m_node(node)
+    , m_client_model(client_model)
+    , m_node(client_model.node())
     , m_platform_style(platform_style)
-    , m_options_model(options_model)
+    , m_options_model(client_model.getOptionsModel())
 {
     m_handler_load_wallet = m_node.handleLoadWallet([this](std::unique_ptr<interfaces::Wallet> wallet) {
         getOrCreateWallet(std::move(wallet));
@@ -104,7 +106,7 @@ WalletModel* WalletController::getOrCreateWallet(std::unique_ptr<interfaces::Wal
     }
 
     // Instantiate model and register it.
-    WalletModel* wallet_model = new WalletModel(std::move(wallet), m_node, m_platform_style, m_options_model, nullptr);
+    WalletModel* wallet_model = new WalletModel(std::move(wallet), m_client_model, m_platform_style, nullptr);
     // Handler callback runs in a different thread so fix wallet model thread affinity.
     wallet_model->moveToThread(thread());
     wallet_model->setParent(this);
-- 
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