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author | Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> | 2021-06-07 18:45:04 +0300 |
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committer | Hennadii Stepanov <32963518+hebasto@users.noreply.github.com> | 2021-09-29 17:01:49 +0300 |
commit | f3a17bbe5f7d23b6ecc20e363920492b50859dad (patch) | |
tree | 140d29c058436cdba68be9e467faf21343441044 /src/qt | |
parent | b4e0d2c43181ad97c15b252e95181e2c3f6c1d2a (diff) | |
download | bitcoin-f3a17bbe5f7d23b6ecc20e363920492b50859dad.tar.xz |
qt: Do not exit and re-enter main event loop during shutdown
Diffstat (limited to 'src/qt')
-rw-r--r-- | src/qt/bitcoin.cpp | 14 | ||||
-rw-r--r-- | src/qt/bitcoin.h | 4 | ||||
-rw-r--r-- | src/qt/bitcoingui.cpp | 7 | ||||
-rw-r--r-- | src/qt/bitcoingui.h | 1 | ||||
-rw-r--r-- | src/qt/optionsdialog.cpp | 3 | ||||
-rw-r--r-- | src/qt/optionsdialog.h | 1 |
6 files changed, 19 insertions, 11 deletions
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp index f6ea147ddb..8ae6db831f 100644 --- a/src/qt/bitcoin.cpp +++ b/src/qt/bitcoin.cpp @@ -54,6 +54,7 @@ #include <QThread> #include <QTimer> #include <QTranslator> +#include <QWindow> #if defined(QT_STATICPLUGIN) #include <QtPlugin> @@ -258,6 +259,7 @@ void BitcoinApplication::createOptionsModel(bool resetSettings) void BitcoinApplication::createWindow(const NetworkStyle *networkStyle) { window = new BitcoinGUI(node(), platformStyle, networkStyle, nullptr); + connect(window, &BitcoinGUI::quitRequested, this, &BitcoinApplication::requestShutdown); pollShutdownTimer = new QTimer(window); connect(pollShutdownTimer, &QTimer::timeout, window, &BitcoinGUI::detectShutdown); @@ -325,13 +327,17 @@ void BitcoinApplication::requestInitialize() void BitcoinApplication::requestShutdown() { + for (const auto w : QGuiApplication::topLevelWindows()) { + w->hide(); + } + // Show a simple window indicating shutdown status // Do this first as some of the steps may take some time below, // for example the RPC console may still be executing a command. shutdownWindow.reset(ShutdownWindow::showShutdownWindow(window)); qDebug() << __func__ << ": Requesting shutdown"; - window->hide(); + // Must disconnect node signals otherwise current thread can deadlock since // no event loop is running. window->unsubscribeFromCoreSignals(); @@ -408,13 +414,13 @@ void BitcoinApplication::initializeResult(bool success, interfaces::BlockAndHead pollShutdownTimer->start(200); } else { Q_EMIT splashFinished(); // Make sure splash screen doesn't stick around during shutdown - quit(); // Exit first main loop invocation + requestShutdown(); } } void BitcoinApplication::shutdownResult() { - quit(); // Exit second main loop invocation after shutdown finished + quit(); } void BitcoinApplication::handleRunawayException(const QString &message) @@ -638,8 +644,6 @@ int GuiMain(int argc, char* argv[]) WinShutdownMonitor::registerShutdownBlockReason(QObject::tr("%1 didn't yet exit safely…").arg(PACKAGE_NAME), (HWND)app.getMainWinId()); #endif app.exec(); - app.requestShutdown(); - app.exec(); rv = app.getReturnValue(); } else { // A dialog with detailed error will have been shown by InitError() diff --git a/src/qt/bitcoin.h b/src/qt/bitcoin.h index ed2f26b7f3..6c2c1c9ebc 100644 --- a/src/qt/bitcoin.h +++ b/src/qt/bitcoin.h @@ -56,8 +56,6 @@ public: /// Request core initialization void requestInitialize(); - /// Request core shutdown - void requestShutdown(); /// Get process return value int getReturnValue() const { return returnValue; } @@ -73,6 +71,8 @@ public: public Q_SLOTS: void initializeResult(bool success, interfaces::BlockAndHeaderTipInfo tip_info); + /// Request core shutdown + void requestShutdown(); void shutdownResult(); /// Handle runaway exceptions. Shows a message box with the problem and quits the program. void handleRunawayException(const QString &message); diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp index 6ecd3c0f5c..abbc6f706b 100644 --- a/src/qt/bitcoingui.cpp +++ b/src/qt/bitcoingui.cpp @@ -371,7 +371,7 @@ void BitcoinGUI::createActions() m_mask_values_action->setStatusTip(tr("Mask the values in the Overview tab")); m_mask_values_action->setCheckable(true); - connect(quitAction, &QAction::triggered, qApp, QApplication::quit); + connect(quitAction, &QAction::triggered, this, &BitcoinGUI::quitRequested); connect(aboutAction, &QAction::triggered, this, &BitcoinGUI::aboutClicked); connect(aboutQtAction, &QAction::triggered, qApp, QApplication::aboutQt); connect(optionsAction, &QAction::triggered, this, &BitcoinGUI::optionsClicked); @@ -991,6 +991,7 @@ void BitcoinGUI::openOptionsDialogWithTab(OptionsDialog::Tab tab) return; auto dlg = new OptionsDialog(this, enableWallet); + connect(dlg, &OptionsDialog::quitOnReset, this, &BitcoinGUI::quitRequested); dlg->setCurrentTab(tab); dlg->setModel(clientModel->getOptionsModel()); GUIUtil::ShowModalDialogAndDeleteOnClose(dlg); @@ -1216,7 +1217,7 @@ void BitcoinGUI::closeEvent(QCloseEvent *event) // close rpcConsole in case it was open to make some space for the shutdown window rpcConsole->close(); - QApplication::quit(); + Q_EMIT quitRequested(); } else { @@ -1410,7 +1411,7 @@ void BitcoinGUI::detectShutdown() { if(rpcConsole) rpcConsole->hide(); - qApp->quit(); + Q_EMIT quitRequested(); } } diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h index c83cd446a0..27045f5cc3 100644 --- a/src/qt/bitcoingui.h +++ b/src/qt/bitcoingui.h @@ -214,6 +214,7 @@ private: void openOptionsDialogWithTab(OptionsDialog::Tab tab); Q_SIGNALS: + void quitRequested(); /** Signal raised when a URI was entered or dragged to the GUI */ void receivedURI(const QString &uri); /** Signal raised when RPC console shown */ diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp index 5ad4fc9b33..0ffa4acc36 100644 --- a/src/qt/optionsdialog.cpp +++ b/src/qt/optionsdialog.cpp @@ -290,7 +290,8 @@ void OptionsDialog::on_resetButton_clicked() /* reset all options and close GUI */ model->Reset(); - QApplication::quit(); + close(); + Q_EMIT quitOnReset(); } } diff --git a/src/qt/optionsdialog.h b/src/qt/optionsdialog.h index ba35ff3b67..f14aec3449 100644 --- a/src/qt/optionsdialog.h +++ b/src/qt/optionsdialog.h @@ -68,6 +68,7 @@ private Q_SLOTS: Q_SIGNALS: void proxyIpChecks(QValidatedLineEdit *pUiProxyIp, uint16_t nProxyPort); + void quitOnReset(); private: Ui::OptionsDialog *ui; |