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qt, refactor: Move InitExecutor class into its own module
This change makes InitExecutor class re-usable by an alternative GUI, e.g., QML-based one.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| // Copyright (c) 2014-2021 The Bitcoin Core developers | ||
| // Distributed under the MIT software license, see the accompanying | ||
| // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
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| #include <qt/initexecutor.h> | ||
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| #include <interfaces/node.h> | ||
| #include <util/system.h> | ||
| #include <util/threadnames.h> | ||
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| #include <exception> | ||
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| #include <QDebug> | ||
| #include <QObject> | ||
| #include <QString> | ||
| #include <QThread> | ||
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| InitExecutor::InitExecutor(interfaces::Node& node) : | ||
| QObject(), m_node(node) | ||
| { | ||
| this->moveToThread(&m_thread); | ||
| m_thread.start(); | ||
| } | ||
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| InitExecutor::~InitExecutor() | ||
| { | ||
| qDebug() << __func__ << ": Stopping thread"; | ||
| m_thread.quit(); | ||
| m_thread.wait(); | ||
| qDebug() << __func__ << ": Stopped thread"; | ||
| } | ||
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| void InitExecutor::handleRunawayException(const std::exception *e) | ||
| { | ||
| PrintExceptionContinue(e, "Runaway exception"); | ||
| Q_EMIT runawayException(QString::fromStdString(m_node.getWarnings().translated)); | ||
| } | ||
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| void InitExecutor::initialize() | ||
| { | ||
| try | ||
| { | ||
| util::ThreadRename("qt-init"); | ||
| qDebug() << __func__ << ": Running initialization in thread"; | ||
| interfaces::BlockAndHeaderTipInfo tip_info; | ||
| bool rv = m_node.appInitMain(&tip_info); | ||
| Q_EMIT initializeResult(rv, tip_info); | ||
| } catch (const std::exception& e) { | ||
| handleRunawayException(&e); | ||
| } catch (...) { | ||
| handleRunawayException(nullptr); | ||
| } | ||
| } | ||
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| void InitExecutor::shutdown() | ||
| { | ||
| try | ||
| { | ||
| qDebug() << __func__ << ": Running Shutdown in thread"; | ||
| m_node.appShutdown(); | ||
| qDebug() << __func__ << ": Shutdown finished"; | ||
| Q_EMIT shutdownResult(); | ||
| } catch (const std::exception& e) { | ||
| handleRunawayException(&e); | ||
| } catch (...) { | ||
| handleRunawayException(nullptr); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // Copyright (c) 2014-2021 The Bitcoin Core developers | ||
| // Distributed under the MIT software license, see the accompanying | ||
| // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
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| #ifndef BITCOIN_QT_INITEXECUTOR_H | ||
| #define BITCOIN_QT_INITEXECUTOR_H | ||
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| #include <interfaces/node.h> | ||
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| #include <exception> | ||
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| #include <QObject> | ||
| #include <QThread> | ||
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| QT_BEGIN_NAMESPACE | ||
| class QString; | ||
| QT_END_NAMESPACE | ||
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| /** Class encapsulating Bitcoin Core startup and shutdown. | ||
| * Allows running startup and shutdown in a different thread from the UI thread. | ||
| */ | ||
| class InitExecutor: public QObject | ||
| { | ||
| Q_OBJECT | ||
| public: | ||
| explicit InitExecutor(interfaces::Node& node); | ||
| ~InitExecutor(); | ||
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| public Q_SLOTS: | ||
| void initialize(); | ||
| void shutdown(); | ||
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| Q_SIGNALS: | ||
| void initializeResult(bool success, interfaces::BlockAndHeaderTipInfo tip_info); | ||
| void shutdownResult(); | ||
| void runawayException(const QString &message); | ||
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| private: | ||
| /// Pass fatal exception message to UI thread | ||
| void handleRunawayException(const std::exception *e); | ||
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| interfaces::Node& m_node; | ||
| QThread m_thread; | ||
| }; | ||
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| #endif // BITCOIN_QT_INITEXECUTOR_H |
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