We will see if we can reproduce this

SVN commit 668722 by guisson:

Revamped unloading of plugins, there is now a shutdown method 
which can be overriden by plugins who which to do some ExitOperations when they are unloaded.
This fixes bug 144727.

BUG: 144727



 M  +4 -0      libktorrent/interfaces/plugin.cpp  
 M  +12 -0     libktorrent/interfaces/plugin.h  
 M  +36 -0     libktorrent/pluginmanager.cpp  
 M  +5 -0      plugins/upnp/upnpplugin.cpp  
 M  +1 -0      plugins/upnp/upnpplugin.h  
 M  +4 -0      plugins/upnp/upnpprefpage.cpp  
 M  +7 -1      plugins/upnp/upnpprefpage.h  
 M  +15 -23    plugins/upnp/upnpprefwidget.cpp  
 M  +7 -0      plugins/upnp/upnpprefwidget.h  


--- trunk/extragear/network/ktorrent/libktorrent/interfaces/plugin.cpp #668721:668722
@@ -40,5 +40,9 @@
 	void Plugin::guiUpdate()
 	{
 	}
+	
+	void Plugin::shutdown(bt::WaitJob* )
+	{
+	}
 }
 #include "plugin.moc"
--- trunk/extragear/network/ktorrent/libktorrent/interfaces/plugin.h #668721:668722
@@ -23,6 +23,11 @@
 #include <ktversion.h>
 #include <kparts/plugin.h>
 
+namespace bt
+{
+	class WaitJob;
+}
+
 namespace kt
 {
 	class CoreInterface;
@@ -78,6 +83,13 @@
 		 * GUI updates.
 		 */
 		virtual void guiUpdate();
+		
+		/**
+		 * This should be implemented by plugins who need finish of some stuff which might take some time.
+		 * These operations must be finished or killed by a timeout before we can proceed with unloading the plugin. 
+		 * @param job The WaitJob which monitors the plugin
+		 */
+		virtual void shutdown(bt::WaitJob* job);
 
 		const QString & getName() const {return name;}
 		const QString & getAuthor() const {return author;}
--- trunk/extragear/network/ktorrent/libktorrent/pluginmanager.cpp #668721:668722
@@ -23,6 +23,7 @@
 #include <util/log.h>
 #include <util/error.h>
 #include <util/fileops.h>
+#include <util/waitjob.h>
 #include <torrent/globals.h>
 #include <interfaces/guiinterface.h>
 #include "pluginmanager.h"
@@ -114,6 +115,20 @@
 		Plugin* p = plugins.find(name);
 		if (!p)
 			return;
+		
+		// first shut it down properly
+		bt::WaitJob* wjob = new WaitJob(2000);
+		try
+		{
+			p->shutdown(wjob);
+			if (wjob->needToWait())
+				bt::WaitJob::execute(wjob);
+		}
+		catch (Error & err)
+		{
+			Out(SYS_GEN|LOG_NOTICE) << "Error when unloading plugin: " << err.toString() << endl;
+		}
+		delete wjob;
 
 		gui->removePluginGui(p);
 		p->unload();
@@ -146,6 +161,27 @@
 
 	void PluginManager::unloadAll(bool save)
 	{
+		// first properly shutdown all plugins
+		bt::WaitJob* wjob = new WaitJob(2000);
+		try
+		{
+			bt::PtrMap<QString,Plugin>::iterator i = plugins.begin();
+			while (i != plugins.end())
+			{
+				Plugin* p = i->second;
+				p->shutdown(wjob);
+				i++;
+			}
+			if (wjob->needToWait())
+				bt::WaitJob::execute(wjob);
+		}
+		catch (Error & err)
+		{
+			Out(SYS_GEN|LOG_NOTICE) << "Error when unloading all plugins: " << err.toString() << endl;
+		}
+		delete wjob;
+		
+		// then unload them
 		bt::PtrMap<QString,Plugin>::iterator i = plugins.begin();
 		while (i != plugins.end())
 		{
--- trunk/extragear/network/ktorrent/plugins/upnp/upnpplugin.cpp #668721:668722
@@ -82,6 +82,11 @@
 		sock = 0;
 	}
 	
+	void UPnPPlugin::shutdown(bt::WaitJob* job)
+	{
+		pref->shutdown(job);
+	}
+	
 	bool UPnPPlugin::versionCheck(const QString & version) const
 	{
 		return version == KT_VERSION_MACRO;
--- trunk/extragear/network/ktorrent/plugins/upnp/upnpplugin.h #668721:668722
@@ -39,6 +39,7 @@
 
 		virtual void load();
 		virtual void unload();
+		virtual void shutdown(bt::WaitJob* job);
 		virtual bool versionCheck(const QString& version) const;
 	private:
 		UPnPMCastSocket* sock;
--- trunk/extragear/network/ktorrent/plugins/upnp/upnpprefpage.cpp #668721:668722
@@ -59,4 +59,8 @@
 	void UPnPPrefPage::updateData()
 	{
 	}
+	
+	void UPnPPrefPage::shutdown(bt::WaitJob* job)
+	{
+	}
 }
--- trunk/extragear/network/ktorrent/plugins/upnp/upnpprefpage.h #668721:668722
@@ -22,6 +22,11 @@
 
 #include <interfaces/prefpageinterface.h>
 
+namespace bt
+{
+	class WaitJob;
+}
+
 namespace kt
 {
 	class UPnPMCastSocket;
@@ -44,7 +49,8 @@
 		virtual void createWidget(QWidget* parent);
 		virtual void deleteWidget();
 		virtual void updateData();
-
+		
+		void shutdown(bt::WaitJob* job);
 	};
 
 }
--- trunk/extragear/network/ktorrent/plugins/upnp/upnpprefwidget.cpp #668721:668722
@@ -50,30 +50,22 @@
 	UPnPPrefWidget::~UPnPPrefWidget()
 	{
 		bt::Globals::instance().getPortList().setListener(0);
-		if (def_router)
+	}
+	
+	void UPnPPrefWidget::shutdown(bt::WaitJob* job)
+	{
+		if (!def_router)
+			return;
+		
+		net::PortList & pl = bt::Globals::instance().getPortList();
+		if (pl.count() == 0)
+			return;
+		
+		for (net::PortList::iterator i = pl.begin(); i != pl.end();i++)
 		{
-			try
-			{
-				net::PortList & pl = bt::Globals::instance().getPortList();
-				
-				if (pl.count() == 0)
-					return;
-			
-				bt::WaitJob* job = new WaitJob(1000);
-				for (net::PortList::iterator i = pl.begin(); i != pl.end();i++)
-				{
-					net::Port & p = *i;
-					if (p.forward)
-						def_router->undoForward(p,job);
-				}
-				
-				// wait for operations to finish or timeout
-				bt::WaitJob::execute(job);
-			}
-			catch (Error & e)
-			{
-				Out(SYS_PNP|LOG_DEBUG) << "Error : " << e.toString() << endl;
-			}
+			net::Port & p = *i;
+			if (p.forward)
+				def_router->undoForward(p,job);
 		}
 	}
 	
--- trunk/extragear/network/ktorrent/plugins/upnp/upnpprefwidget.h #668721:668722
@@ -27,6 +27,11 @@
 
 class KListViewItem;
 
+namespace bt
+{
+	class WaitJob;
+}
+
 namespace kt
 {
 	
@@ -41,6 +46,8 @@
 		UPnPPrefWidget(QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
 		virtual ~UPnPPrefWidget();
 		
+		void shutdown(bt::WaitJob* job);
+		
 	
 	public slots:
 		/**