diff options
| -rw-r--r-- | src/qt/bitcoingui.cpp | 3 | ||||
| -rw-r--r-- | src/qt/clientmodel.cpp | 33 | ||||
| -rw-r--r-- | src/qt/clientmodel.h | 6 |
3 files changed, 32 insertions, 10 deletions
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp index be79a67990..5c26baef9e 100644 --- a/src/qt/bitcoingui.cpp +++ b/src/qt/bitcoingui.cpp @@ -478,6 +478,7 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel) connect(_clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int))); connect(_clientModel, SIGNAL(networkActiveChanged(bool)), this, SLOT(setNetworkActive(bool))); + modalOverlay->setKnownBestHeight(_clientModel->getHeaderTipHeight(), QDateTime::fromTime_t(_clientModel->getHeaderTipTime())); setNumBlocks(_clientModel->getNumBlocks(), _clientModel->getLastBlockDate(), _clientModel->getVerificationProgress(NULL), false); connect(_clientModel, SIGNAL(numBlocksChanged(int,QDateTime,double,bool)), this, SLOT(setNumBlocks(int,QDateTime,double,bool))); @@ -505,8 +506,6 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel) // initialize the disable state of the tray icon with the current value in the model. setTrayIconVisible(optionsModel->getHideTrayIcon()); } - - modalOverlay->setKnownBestHeight(clientModel->getHeaderTipHeight(), QDateTime::fromTime_t(clientModel->getHeaderTipTime())); } else { // Disable possibility to show main window via action toggleHideAction->setEnabled(false); diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp index bb10e49422..20d4687971 100644 --- a/src/qt/clientmodel.cpp +++ b/src/qt/clientmodel.cpp @@ -36,6 +36,8 @@ ClientModel::ClientModel(OptionsModel *_optionsModel, QObject *parent) : banTableModel(0), pollTimer(0) { + cachedBestHeaderHeight = -1; + cachedBestHeaderTime = -1; peerTableModel = new PeerTableModel(this); banTableModel = new BanTableModel(this); pollTimer = new QTimer(this); @@ -74,18 +76,28 @@ int ClientModel::getNumBlocks() const int ClientModel::getHeaderTipHeight() const { - LOCK(cs_main); - if (!pindexBestHeader) - return 0; - return pindexBestHeader->nHeight; + if (cachedBestHeaderHeight == -1) { + // make sure we initially populate the cache via a cs_main lock + // otherwise we need to wait for a tip update + LOCK(cs_main); + if (pindexBestHeader) { + cachedBestHeaderHeight = pindexBestHeader->nHeight; + cachedBestHeaderTime = pindexBestHeader->GetBlockTime(); + } + } + return cachedBestHeaderHeight; } int64_t ClientModel::getHeaderTipTime() const { - LOCK(cs_main); - if (!pindexBestHeader) - return 0; - return pindexBestHeader->GetBlockTime(); + if (cachedBestHeaderTime == -1) { + LOCK(cs_main); + if (pindexBestHeader) { + cachedBestHeaderHeight = pindexBestHeader->nHeight; + cachedBestHeaderTime = pindexBestHeader->GetBlockTime(); + } + } + return cachedBestHeaderTime; } quint64 ClientModel::getTotalBytesRecv() const @@ -283,6 +295,11 @@ static void BlockTipChanged(ClientModel *clientmodel, bool initialSync, const CB int64_t& nLastUpdateNotification = fHeader ? nLastHeaderTipUpdateNotification : nLastBlockTipUpdateNotification; + if (fHeader) { + // cache best headers time and height to reduce future cs_main locks + clientmodel->cachedBestHeaderHeight = pIndex->nHeight; + clientmodel->cachedBestHeaderTime = pIndex->GetBlockTime(); + } // if we are in-sync, update the UI regardless of last update time if (!initialSync || now - nLastUpdateNotification > MODEL_UPDATE_DELAY) { //pass a async signal to the UI thread diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h index 2c10e633b8..4c92e2144e 100644 --- a/src/qt/clientmodel.h +++ b/src/qt/clientmodel.h @@ -8,6 +8,8 @@ #include <QObject> #include <QDateTime> +#include <atomic> + class AddressTableModel; class BanTableModel; class OptionsModel; @@ -81,6 +83,10 @@ public: QString formatClientStartupTime() const; QString dataDir() const; + // caches for the best header + mutable std::atomic<int> cachedBestHeaderHeight; + mutable std::atomic<int64_t> cachedBestHeaderTime; + private: OptionsModel *optionsModel; PeerTableModel *peerTableModel; |