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-rw-r--r--src/qt/Makefile.am6
-rw-r--r--src/qt/bitcoin.cpp22
-rw-r--r--src/qt/winshutdownmonitor.cpp57
-rw-r--r--src/qt/winshutdownmonitor.h29
4 files changed, 111 insertions, 3 deletions
diff --git a/src/qt/Makefile.am b/src/qt/Makefile.am
index f875ac283b..44d2964501 100644
--- a/src/qt/Makefile.am
+++ b/src/qt/Makefile.am
@@ -211,7 +211,8 @@ BITCOIN_QT_H = \
walletframe.h \
walletmodel.h \
walletmodeltransaction.h \
- walletview.h
+ walletview.h \
+ winshutdownmonitor.h
RES_ICONS = \
res/icons/add.png \
@@ -277,7 +278,8 @@ BITCOIN_QT_CPP = \
rpcconsole.cpp \
splashscreen.cpp \
trafficgraphwidget.cpp \
- utilitydialog.cpp
+ utilitydialog.cpp \
+ winshutdownmonitor.cpp
if ENABLE_WALLET
BITCOIN_QT_CPP += \
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 696e65ec19..c05692efa3 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -15,6 +15,7 @@
#include "optionsmodel.h"
#include "splashscreen.h"
#include "utilitydialog.h"
+#include "winshutdownmonitor.h"
#ifdef ENABLE_WALLET
#include "paymentserver.h"
#include "walletmodel.h"
@@ -189,6 +190,9 @@ public:
/// Get process return value
int getReturnValue() { return returnValue; }
+ /// Get window identifier of QMainWindow (BitcoinGUI)
+ WId getMainWinId() const;
+
public slots:
void initializeResult(int retval);
void shutdownResult(int retval);
@@ -444,6 +448,14 @@ void BitcoinApplication::handleRunawayException(const QString &message)
::exit(1);
}
+WId BitcoinApplication::getMainWinId() const
+{
+ if (!window)
+ return 0;
+
+ return window->winId();
+}
+
#ifndef BITCOIN_QT_TEST
int main(int argc, char *argv[])
{
@@ -558,10 +570,15 @@ int main(int argc, char *argv[])
/// 9. Main GUI initialization
// Install global event filter that makes sure that long tooltips can be word-wrapped
app.installEventFilter(new GUIUtil::ToolTipToRichTextFilter(TOOLTIP_WRAP_THRESHOLD, &app));
- // Install qDebug() message handler to route to debug.log
#if QT_VERSION < 0x050000
+ // Install qDebug() message handler to route to debug.log
qInstallMsgHandler(DebugMessageHandler);
#else
+#if defined(Q_OS_WIN)
+ // Install global event filter for processing Windows session related Windows messages (WM_QUERYENDSESSION and WM_ENDSESSION)
+ qApp->installNativeEventFilter(new WinShutdownMonitor());
+#endif
+ // Install qDebug() message handler to route to debug.log
qInstallMessageHandler(DebugMessageHandler);
#endif
// Load GUI settings from QSettings
@@ -577,6 +594,9 @@ int main(int argc, char *argv[])
{
app.createWindow(isaTestNet);
app.requestInitialize();
+#if defined(Q_OS_WIN) && QT_VERSION >= 0x050000
+ WinShutdownMonitor::registerShutdownBlockReason(QObject::tr("Bitcoin Core did't yet exit safely..."), (HWND)app.getMainWinId());
+#endif
app.exec();
app.requestShutdown();
app.exec();
diff --git a/src/qt/winshutdownmonitor.cpp b/src/qt/winshutdownmonitor.cpp
new file mode 100644
index 0000000000..b7526f0ae4
--- /dev/null
+++ b/src/qt/winshutdownmonitor.cpp
@@ -0,0 +1,57 @@
+// Copyright (c) 2014 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "winshutdownmonitor.h"
+
+#if defined(Q_OS_WIN) && QT_VERSION >= 0x050000
+#include "init.h"
+
+#include <windows.h>
+
+#include <QDebug>
+
+// If we don't want a message to be processed by Qt, return true and set result to
+// the value that the window procedure should return. Otherwise return false.
+bool WinShutdownMonitor::nativeEventFilter(const QByteArray &eventType, void *pMessage, long *pnResult)
+{
+ Q_UNUSED(eventType);
+
+ MSG *pMsg = static_cast<MSG *>(pMessage);
+
+ switch(pMsg->message)
+ {
+ case WM_QUERYENDSESSION:
+ {
+ // Initiate a client shutdown after receiving a WM_QUERYENDSESSION and block
+ // Windows session end until we have finished client shutdown.
+ StartShutdown();
+ *pnResult = FALSE;
+ return true;
+ }
+
+ case WM_ENDSESSION:
+ {
+ *pnResult = FALSE;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+void WinShutdownMonitor::registerShutdownBlockReason(const QString& strReason, const HWND& mainWinId)
+{
+ typedef BOOL (WINAPI *PSHUTDOWNBRCREATE)(HWND, LPCWSTR);
+ PSHUTDOWNBRCREATE shutdownBRCreate = (PSHUTDOWNBRCREATE)GetProcAddress(GetModuleHandleA("User32.dll"), "ShutdownBlockReasonCreate");
+ if (shutdownBRCreate == NULL) {
+ qDebug() << "registerShutdownBlockReason : GetProcAddress for ShutdownBlockReasonCreate failed";
+ return;
+ }
+
+ if (shutdownBRCreate(mainWinId, strReason.toStdWString().c_str()))
+ qDebug() << "registerShutdownBlockReason : Successfully registered: " + strReason;
+ else
+ qDebug() << "registerShutdownBlockReason : Failed to register: " + strReason;
+}
+#endif
diff --git a/src/qt/winshutdownmonitor.h b/src/qt/winshutdownmonitor.h
new file mode 100644
index 0000000000..4c76d2c816
--- /dev/null
+++ b/src/qt/winshutdownmonitor.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2014 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef WINSHUTDOWNMONITOR_H
+#define WINSHUTDOWNMONITOR_H
+
+#ifdef WIN32
+#include <QByteArray>
+#include <QString>
+
+#if QT_VERSION >= 0x050000
+#include <windef.h> // for HWND
+
+#include <QAbstractNativeEventFilter>
+
+class WinShutdownMonitor : public QAbstractNativeEventFilter
+{
+public:
+ /** Implements QAbstractNativeEventFilter interface for processing Windows messages */
+ bool nativeEventFilter(const QByteArray &eventType, void *pMessage, long *pnResult);
+
+ /** Register the reason for blocking shutdown on Windows to allow clean client exit */
+ static void registerShutdownBlockReason(const QString& strReason, const HWND& mainWinId);
+};
+#endif
+#endif
+
+#endif // WINSHUTDOWNMONITOR_H