Process start/stop/view functionality

Cleanup
write to logfiles if start/stop/view of processes failed
added some prompts
stop more then one process at the same time

13 files changed, 262 insertions, 125 deletions

diff --git a/src/core/pvsConnectionManager.cpp b/src/core/pvsConnectionManager.cpp
index db302c4..d1442dd 100644
--- a/src/core/pvsConnectionManager.cpp
+++ b/src/core/pvsConnectionManager.cpp
@@ -226,33 +226,69 @@ void PVSConnectionManager::onCommand(PVSMsg command)
     	QString id = int2String(command.getSndID());
     	if (message.startsWith("START"))
     	{
-    		QString msgcontent = message.remove(0,6);
-    		if (msgcontent.startsWith("ERROR"))
-    		{
-    			ConsoleLog writeError("[Client: " + id + ", PROCESS] could not start: " +msgcontent.remove(0,6));
-    		}
-    		else
+    		message.remove(0,6);
+    		if (message.startsWith("ERROR"))
     		{
-    			//ConsoleLog writeLine(QString("[Client: " + id + ", PROCESS] started: " +msgcontent));
+    	    	int e = string2Int(message.remove(0,6));
+    	    	message.remove(0,2);
+    	        switch (e)
+    	        {
+					case 0:
+						ConsoleLog writeError("[Client: " + id + ", PROCESS] could not start: "+message+" is missing or insufficient permissions");
+						break;
+					case 1:
+						ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" crashed");
+						break;
+					case 2:
+						ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" timed out");
+						break;
+					case 3:
+						ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" read error");
+						break;
+					case 4:
+						ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" write error");
+						break;
+					default:
+						ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+": unknown error");
+						break;
+    	        }
     		}
     	}
-    	if (message.startsWith("STOP"))
-    	{
-    		QString msgcontent = message.remove(0,5);
-    		if (msgcontent.startsWith("ERROR"))
-    		{
-    			ConsoleLog writeError("[Client: " + id + ", PROCESS] could not stop: " +msgcontent.remove(0,6));
-    		}
-    		else
-    		{
-    			//ConsoleLog writeLine(QString("[Client: " + id + ", PROCESS] stopped: " +msgcontent));
-    		}
+    	else if (message.startsWith("STOP"))
+		{
+        	message.remove(0,5);
+        	if (message.startsWith("ERROR"))
+        	{
+        	    int e = string2Int(message.remove(0,6));
+        	    message.remove(0,2);
+        	    switch (e)
+        	    {
+    				case 0:
+    					ConsoleLog writeError("[Client: " + id + ", PROCESS] could not stop: "+message+" is missing or insufficient permissions");
+    					break;
+    				case 1:
+    					ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" crashed");
+    					break;
+    				case 2:
+    					ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" timed out");
+    					break;
+    				case 3:
+    					ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" read error");
+    					break;
+    				case 4:
+    					ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+" write error");
+    					break;
+    				default:
+    					ConsoleLog writeError("[Client: " + id + ", PROCESS] "+message+": unknown error");
+    					break;
+        		}
+        	}
     	}
-    	if (message.startsWith("SHOW"))
+    	else if (message.startsWith("SHOW"))
     	{
     		QString msgcontent = message.remove(0,5);
     		if (msgcontent.startsWith("ERROR"))
-    			ConsoleLog writeError("[Client: " + id + ", PROCESS] could not show processes: " +msgcontent.remove(0,6));
+    			ConsoleLog writeError("[Client: " + id + ", PROCESS] could not show processes.");
     		else if (msgcontent.startsWith("clear"))
     			tmp->clearProcessesVector();
     		else if (msgcontent.startsWith("finished"))
diff --git a/src/gui/mainWindow.cpp b/src/gui/mainWindow.cpp
index b6878e8..e044470 100644
--- a/src/gui/mainWindow.cpp
+++ b/src/gui/mainWindow.cpp
@@ -68,6 +68,8 @@ MainWindow::MainWindow(QWidget *parent) :
 
 	_aboutDialog = new AboutDialog(this);
 
+	displayedClientNameEnum = 0;
+
 	PVSConnectionManager::getManager();
 
 	//set the maximum width for list content
@@ -112,8 +114,6 @@ MainWindow::MainWindow(QWidget *parent) :
 	connect(ui->actionProjection, SIGNAL(triggered()), this, SLOT(projecttoolbar()));
 	connect(ui->actionUnprojection, SIGNAL(triggered()), this, SLOT(unprojecttoolbar()));
 	connect(ui->actionDozent, SIGNAL(triggered()), this, SLOT(setdozenttoolbar()));
-	connect(ui->actionShowProcesses, SIGNAL(triggered()), this, SLOT(showProcesses()));
-	connect(ui->actionStartProcess, SIGNAL(triggered()), this, SLOT(startProcess()));
 
 	// Ui specific settings
 
@@ -770,57 +770,44 @@ void MainWindow::closeUp()
 	}
 }
 
-/*	Perform some action if actionShowProcesses button was pressed
- *
- */
+//	Perform some action if actionShowProcesses button was pressed
 void MainWindow::showProcesses()
 {
-	std::list<QString>* selectedClients =
-			MainWindow::getConnectionList()->getSelectedClients();
-	if (selectedClients->size() >= 1)
-	{
-		ProcessDialog procDialog;
-		procDialog.exec();
-
-	}
-	else
-	{
-		QString
-				message =
-						QString(
-								tr(
-										"This operation can only be performed if you have selected at least one Client!"));
-		QMessageBox::information(this, "PVS", message);
-	}
-
+	ProcessDialog procShowDialog(0,displayedClientNameEnum);
+	procShowDialog.exec();
 }
 
 
-/*	Perform some action if actionStartProcess button was pressed
- *
- */
+//	Perform some action if actionStartProcess button was pressed
 void MainWindow::startProcess()
 {
 	std::list<QString>* selectedClients =
 			MainWindow::getConnectionList()->getSelectedClients();
 	if (selectedClients->size() >= 1)
 	{
-		// do stuff
-		/*PVSClient * pvsClient =
-							PVSConnectionManager::getManager()->getClientFromIp(
-									selectedClients->front().toStdString().c_str());*/
-
-		ProcessesStartDialog procD;
-		QString myString = NULL;
-		int result  = procD.exec();
-
-		if (result == 1)
+		ProcessesStartDialog procStartDialog;
+		procToStart = "";
+		int result = procStartDialog.exec();
+		if (result == 1) //if result == 1 we clicked send on our button then
+						 //procToStart is set to the text that was given in our messageEdit
 		{
-			myString = MainWindow::getWindow()->getProcessesDialog();
-			if(!myString.isEmpty())
-				MainWindow::getConnectionWindow()->commandStations("STARTPROCESS",myString);
+			std::list<QString>::iterator itSelected;
+			for (itSelected = selectedClients->begin(); itSelected != selectedClients->end();
+					itSelected++)
+			{
+				std::list<PVSClient*> listAll =
+						PVSConnectionManager::getManager()->getConnections();
+				for (std::list<PVSClient*>::iterator itAll = listAll.begin();
+						itAll != listAll.end(); itAll++)
+				{
+					if ((*itSelected) == (*itAll)->getIp())
+					{
+						(*itAll)->sendMessage(PVSCOMMAND, "STARTPROCESS", procToStart);
+						break;
+					}
+				}
+			}
 		}
-
 	}
 	else
 	{
@@ -880,6 +867,7 @@ void MainWindow::createProfile()
 
 void MainWindow::showusername()
 {
+	displayedClientNameEnum = 2;
 	MainWindow::getConnectionList()->setColumnHidden(2, false);
 	MainWindow::getConnectionList()->setColumnHidden(0, true);
 	MainWindow::getConnectionList()->setColumnHidden(1, true);
@@ -887,6 +875,7 @@ void MainWindow::showusername()
 
 void MainWindow::showname()
 {
+	displayedClientNameEnum = 0;
 	MainWindow::getConnectionList()->setColumnHidden(0, false);
 	MainWindow::getConnectionList()->setColumnHidden(1, true);
 	MainWindow::getConnectionList()->setColumnHidden(2, true);
@@ -894,6 +883,7 @@ void MainWindow::showname()
 
 void MainWindow::showip()
 {
+	displayedClientNameEnum = 1;
 	MainWindow::getConnectionList()->setColumnHidden(1, false);
 	MainWindow::getConnectionList()->setColumnHidden(2, true);
 	MainWindow::getConnectionList()->setColumnHidden(0, true);
@@ -1293,6 +1283,11 @@ void MainWindow::configureNetwork()
 	}
 }
 
+int MainWindow::getDisplayedClientNameEnum()
+{
+	return displayedClientNameEnum;
+}
+
 MainWindow* MainWindow::myself = NULL;
 ConnectionList* MainWindow::conList = NULL;
 ConnectionWindow* MainWindow::conWin = NULL;
diff --git a/src/gui/mainWindow.h b/src/gui/mainWindow.h
index 28f82f7..671bf38 100644
--- a/src/gui/mainWindow.h
+++ b/src/gui/mainWindow.h
@@ -96,8 +96,8 @@ public:
     void setMsgDialog(QString msgd){msgDialog = msgd;};
     QString getMsgDialog(){return msgDialog;};
 
-    void setProcessesDialog(QString procd){procDialog = procd;};
-    QString getProcessesDialog(){return procDialog;};
+    void setProcessesDialog(QString procd){procToStart = procd;};
+    QString getProcessesDialog(){return procToStart;};
 
     bool isLockAllStatus()
     {
@@ -106,8 +106,6 @@ public:
 
     void appendLogMsg();
 
-
-
 protected:
     void closeEvent(QCloseEvent *e);
     void changeEvent(QEvent *e);
@@ -128,6 +126,8 @@ private:
     QString _sessionName;
     QString _profilName;
 
+    int displayedClientNameEnum; //to tell if username, loginname or ip is shown in clientList
+
     QStringList _chatListClients;
 
 
@@ -139,7 +139,7 @@ private:
     AboutDialog      *_aboutDialog;
 
     QString msgDialog;
-    QString procDialog;
+    QString procToStart;
     bool    bgimage;
     bool    locked, locked1;
     bool    force_square;
@@ -186,6 +186,7 @@ public slots:
     void startChatDialog();
     void showProcesses();
     void startProcess();
+    int getDisplayedClientNameEnum();
 
 private slots:
 	void onToggleLog(bool showtime);
diff --git a/src/gui/processWidget.cpp b/src/gui/processWidget.cpp
index 9b59b2a..d61b42c 100644
--- a/src/gui/processWidget.cpp
+++ b/src/gui/processWidget.cpp
@@ -28,10 +28,11 @@ ProcessWidget::ProcessWidget(QWidget *parent, PVSClient *cl):
 	client = cl;
 
 	connect( prowui->startButton, SIGNAL( clicked()), this, SLOT( startProcess()));
-    connect( prowui->refreshButton, SIGNAL( clicked()), this, SLOT( refrProcessList()));
+    connect( prowui->refreshButton, SIGNAL( clicked()), this, SLOT( resendProcessList()));
     connect( prowui->stopButton, SIGNAL( clicked()), this, SLOT( stopProcess()));
     connect( client, SIGNAL( processVectorReady(bool)), this, SLOT( refrProcessList()));
 
+    //tell client we want to see his processes
     sendCommand("SHOWPROCESSES", "");
 }
 
@@ -39,7 +40,7 @@ void ProcessWidget::startProcess()
 {
     QMessageBox::StandardButton start = QMessageBox::question(0,
             tr("PVS Start Process"), tr("Do you want to start the process: ") + prowui->processLineEdit->text() +
-            tr(" on User '") + client->getDesktopName() + tr("' ?"),
+            tr(" on this Client?"),
             QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
 
     if (start ==  QMessageBox::Ok)
@@ -50,15 +51,23 @@ void ProcessWidget::startProcess()
     prowui->processLineEdit->clear();
 }
 
+void ProcessWidget::resendProcessList()
+{
+	sendCommand("SHOWPROCESSES", "");
+}
+
+
 void ProcessWidget::refrProcessList()
 {
+	//remove every item of our list
 	for(int i=prowui->processTable->rowCount(); i == 0; i--)
 	{
 		prowui->processTable->removeRow(i);
 	}
 	prowui->processTable->setRowCount(0);
-	QVector<QString> processes = client->getProcessesVector();
 
+	//read every entry of the vector - split it - and put it to the list
+	QVector<QString> processes = client->getProcessesVector();
 	for (int i=0; i<processes.size(); i++)
 	{
 		prowui->processTable->setRowCount(i+1);
@@ -68,6 +77,7 @@ void ProcessWidget::refrProcessList()
 			prowui->processTable->setItem(i,j,new QTableWidgetItem(processesList.at(j),0));
 		}
 	}
+	//select row 0
 	prowui->processTable->selectRow(0);
 }
 
@@ -75,15 +85,51 @@ void ProcessWidget::stopProcess()
 {
 	if (prowui->processTable->rowCount() > 0)
 	{
+		//get a list of all selected items
+		QList<QTableWidgetItem *> selectedItems = prowui->processTable->selectedItems();
+		QList<int> rows;
+		for (int i=0;i<selectedItems.length();i++)
+		{
+			//only add rows one time
+			if (rows.indexOf(selectedItems.at(i)->row()) < 0)
+				rows.append(selectedItems.at(i)->row());
+		}
+		//append names of processes
+		QString processesMessage = "";
+		for (int i=0;i<rows.size();i++)
+		{
+			if (i==0)
+				processesMessage.append(QString(tr(" ")));
+			else
+				processesMessage.append(QString(tr(",")));
+			processesMessage.append(prowui->processTable->item(rows.at(i),1)->text());
+			processesMessage.append(QString(tr(" ")));
+		}
+
+		QMessageBox::StandardButton start = QMessageBox::question(0,
+			            tr("PVS Start Process"), tr("Do you want to stop the process(es):") + processesMessage +
+			            tr("on this Client?"),
+			            QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
+		if (start ==  QMessageBox::Ok)
+		{
+			//send KILLPROCESS for every row
+			for (int i=0;i<rows.size();i++)
+			{
+				sendCommand("KILLPROCESS", prowui->processTable->item(rows.at(i),0)->text());
+			}
+		}
+		//tell client to update his list
+		sendCommand("SHOWPROCESSES", "");
+		/*
 	    QMessageBox::StandardButton start = QMessageBox::question(0,
 	            tr("PVS Start Process"), tr("Do you want to stop the process: ") + prowui->processTable->item(prowui->processTable->currentRow(),1)->text() +
-	            tr(" on User '") + client->getDesktopName() + tr("' ?"),
+	            tr(" on this Client?"),
 	            QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
 	    if (start ==  QMessageBox::Ok)
 	    {
 	    	sendCommand("KILLPROCESS", prowui->processTable->item(prowui->processTable->currentRow(),0)->text());
 	    	sendCommand("SHOWPROCESSES", "");
-	    }
+	    }*/
 	}
 }
 
diff --git a/src/gui/processWidget.h b/src/gui/processWidget.h
index 7e7eb72..788c9e6 100644
--- a/src/gui/processWidget.h
+++ b/src/gui/processWidget.h
@@ -17,7 +17,7 @@ class ProcessWidget: public QWidget
 public:
     ProcessWidget(QWidget *parent, PVSClient *client);
     ~ ProcessWidget();
-    QAbstractItemModel *model;
+
 public slots:
 	void refrProcessList();
 
@@ -29,6 +29,7 @@ private:
 private slots:
     void startProcess();
     void stopProcess();
+    void resendProcessList();
     void sendCommand(QString ident, QString message);
 };
 
diff --git a/src/gui/processesDialog.cpp b/src/gui/processesDialog.cpp
index cda76ea..49535d5 100644
--- a/src/gui/processesDialog.cpp
+++ b/src/gui/processesDialog.cpp
@@ -1,5 +1,5 @@
 /*
-# Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
+# Copyright (c) 2010 - OpenSLX Project, Computer Center University of Freiburg
 #
 # This program is free software distributed under the GPL version 2.
 # See http://openslx.org/COPYING
@@ -17,9 +17,8 @@
 #include "processesDialog.h"
 #include "ui_processesDialog.h"
 #include <src/gui/processWidget.h>
-//#include <src/gui/mainWindow.h>
 
-ProcessDialog::ProcessDialog(QDialog *parent) :
+ProcessDialog::ProcessDialog(QDialog *parent, int displayedClientNameEnum) :
     QDialog(parent),
     procui(new Ui::ProcessesDialog)
 {
@@ -28,6 +27,7 @@ ProcessDialog::ProcessDialog(QDialog *parent) :
     tWidget = new QTabWidget;
     procui->grLayout->addWidget(tWidget);
 
+    //if we click on another tab we refresh the list of this client
     connect( tWidget, SIGNAL( currentChanged(int)), this, SLOT( currChanged()));
 
 	std::list<PVSClient*> listAll =
@@ -35,15 +35,19 @@ ProcessDialog::ProcessDialog(QDialog *parent) :
 	for (std::list<PVSClient*>::iterator it = listAll.begin(); it
 			!= listAll.end(); it++)
 	{
-		if (*it == NULL || (*it)->getConnectionFrame() == NULL) continue;
-		if ((*it)->getConnectionFrame()->getFrame() &&
-				/*!(*it)->getConnectionFrame()->getFrame()->isDozent() &&*/
-				(*it)->getVNCConnection())
+		//display ip/login name/user name the same way we do in our clientlist
+		switch (displayedClientNameEnum)
+		{
+		case 1:
+			tWidget->addTab(new ProcessWidget(0, *it), (*it)->getIp());
+		    break;
+		case 2:
+			tWidget->addTab(new ProcessWidget(0, *it), (*it)->getLoginName());
+		    break;
+		default:
 			tWidget->addTab(new ProcessWidget(0, *it), (*it)->getUserName());
-		else if (!(*it)->getConnectionFrame()->getFrame())
-			ConsoleLog writeError(QString("The Frame connection from client: ").
-					append((*it)->getConnectionFrame()->getTaskbarTitle()).
-					append(QString(" is corrupted. Reconnect the client it again.")));
+		    break;
+		}
 	}
 }
 
diff --git a/src/gui/processesDialog.h b/src/gui/processesDialog.h
index 9d98136..d2bcae1 100644
--- a/src/gui/processesDialog.h
+++ b/src/gui/processesDialog.h
@@ -21,7 +21,7 @@ class MainWindow;
 class ProcessDialog : public QDialog {
     Q_OBJECT
 public:
-    ProcessDialog(QDialog *parent = 0);
+    ProcessDialog(QDialog *parent = 0, int displayedClientNameEnum = 0);
     ~ProcessDialog();
 
 
diff --git a/src/gui/processesStartDialog.cpp b/src/gui/processesStartDialog.cpp
index b4c8c79..f176f7e 100644
--- a/src/gui/processesStartDialog.cpp
+++ b/src/gui/processesStartDialog.cpp
@@ -19,9 +19,11 @@
 #include <src/gui/mainWindow.h>
 
 ProcessesStartDialog::ProcessesStartDialog(QWidget *parent) :
-    QDialog(parent)
+    QDialog(parent),
+    procStartUi(new Ui::ProcessesStartDialog)
 {
-    textLabel = new QLabel;
+	procStartUi->setupUi(this);
+    /*textLabel = new QLabel;
     textLabel->setText("Process to start:");
 
     messageEdit = new QLineEdit;
@@ -36,11 +38,16 @@ ProcessesStartDialog::ProcessesStartDialog(QWidget *parent) :
 
     layout->addWidget(textLabel,0,0);
     layout->addWidget(messageEdit,1,0);
-    layout->addWidget(cancelButton,2,0);
+    layout->addWidget(cancelButton,2,1);
     layout->addWidget(sendButton,2,0);
 
     setLayout(layout);
-    setWindowTitle(tr("PVS start Process"));
+    setWindowTitle(tr("PVS start Process"));*/
+
+    connect( procStartUi->sendButton, SIGNAL( clicked()), this, SLOT( send()));
+    connect( procStartUi->cancelButton, SIGNAL( clicked()), this, SLOT( notSend()));
+    procStartUi->listOfProcessesButton->hide();
+    //connect( procStartUi->listOfProcessesButton, SIGNAL( clicked()), this, SLOT( listProcesses()));
 }
 
 ProcessesStartDialog::~ProcessesStartDialog()
@@ -50,26 +57,32 @@ ProcessesStartDialog::~ProcessesStartDialog()
 
 void ProcessesStartDialog::send()
 {
-	QString procd = messageEdit->text();
-	MainWindow::getWindow()->setProcessesDialog(procd);
-	messageEdit->clear();
-	emit accept();
+	QString procd = procStartUi->message->text();
+
+	if (procd.length()>0)
+	{
+		QMessageBox::StandardButton start = QMessageBox::question(0,
+				tr("PVS Start Process"), tr("Do you want to start the process: ") + procd +
+				tr(" on the selected Clients?"),
+				QMessageBox::Ok | QMessageBox::Cancel, QMessageBox::Ok);
+
+		if (start == QMessageBox::Ok)
+		{
+			//write name of process to setProcessesDialog
+			MainWindow::getWindow()->setProcessesDialog(procd);
+		}
+		procStartUi->message->clear();
+		emit accept();
+	}
 }
 
-void ProcessesStartDialog::NotSend()
+void ProcessesStartDialog::notSend()
 {
-	messageEdit->clear();
+	procStartUi->message->clear();
 	emit reject();
 }
 
-/*void ProcessesStartDialog::changeEvent(QEvent *e)
+void ProcessesStartDialog::listProcesses()
 {
-    //QDialog::changeEvent(e);
-    //switch (e->type()) {
-    //case QEvent::LanguageChange:
-    //    procstartui->retranslateUi(this);
-    //    break;
-    //default:
-    //    break;
-    //}
-}*/
+	//
+}
diff --git a/src/gui/processesStartDialog.h b/src/gui/processesStartDialog.h
index 61aee4f..856279b 100644
--- a/src/gui/processesStartDialog.h
+++ b/src/gui/processesStartDialog.h
@@ -3,29 +3,33 @@
 
 #include <QDialog>
 #include <QtGui>
+#include "ui_processesStartDialog.h"
 
+namespace Ui {
+    class ProcessesStartDialog;
+}
 
 class MainWindow;
-
+class QDialog;
 class ProcessesStartDialog : public QDialog {
     Q_OBJECT
 public:
     ProcessesStartDialog(QWidget *parent = 0);
     ~ProcessesStartDialog();
 
-/*protected:
-    void changeEvent(QEvent *e);*/
-
 private:
-    QGridLayout *layout;
+    Ui::ProcessesStartDialog *procStartUi;
+
+    /*QGridLayout *layout;
     QLabel *textLabel;
     QLineEdit *messageEdit;
     QPushButton *sendButton;
-    QPushButton *cancelButton;
+    QPushButton *cancelButton;*/
 
 private slots:
     void send();
-    void NotSend();
+    void notSend();
+    void listProcesses();
 };
 
 #endif // PROCESSESSTARTDIALOG_H
diff --git a/src/gui/ui/processWidget.ui b/src/gui/ui/processWidget.ui
index 3e7f55e..5ada967 100644
--- a/src/gui/ui/processWidget.ui
+++ b/src/gui/ui/processWidget.ui
@@ -56,7 +56,7 @@
            <bool>true</bool>
           </property>
           <property name="selectionMode">
-           <enum>QAbstractItemView::SingleSelection</enum>
+           <enum>QAbstractItemView::ExtendedSelection</enum>
           </property>
           <property name="selectionBehavior">
            <enum>QAbstractItemView::SelectRows</enum>
diff --git a/src/gui/ui/processesStartDialog.ui b/src/gui/ui/processesStartDialog.ui
index 5d8c7ee..0f6c60a 100644
--- a/src/gui/ui/processesStartDialog.ui
+++ b/src/gui/ui/processesStartDialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>393</width>
-    <height>109</height>
+    <width>418</width>
+    <height>120</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -16,14 +16,21 @@
   <widget class="QWidget" name="layoutWidget">
    <property name="geometry">
     <rect>
-     <x>20</x>
-     <y>20</y>
-     <width>351</width>
-     <height>71</height>
+     <x>10</x>
+     <y>10</y>
+     <width>401</width>
+     <height>101</height>
     </rect>
    </property>
    <layout class="QVBoxLayout" name="verticalLayout">
     <item>
+     <widget class="QLabel" name="label">
+      <property name="text">
+       <string>Process to start:</string>
+      </property>
+     </widget>
+    </item>
+    <item>
      <widget class="QLineEdit" name="message"/>
     </item>
     <item>
@@ -32,6 +39,13 @@
        <number>5</number>
       </property>
       <item>
+       <widget class="QPushButton" name="listOfProcessesButton">
+        <property name="text">
+         <string>List of Processes</string>
+        </property>
+       </widget>
+      </item>
+      <item>
        <spacer name="horizontalSpacer">
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
@@ -45,16 +59,16 @@
        </spacer>
       </item>
       <item>
-       <widget class="QPushButton" name="cancel">
+       <widget class="QPushButton" name="cancelButton">
         <property name="text">
          <string>Cancel</string>
         </property>
        </widget>
       </item>
       <item>
-       <widget class="QPushButton" name="send">
+       <widget class="QPushButton" name="sendButton">
         <property name="text">
-         <string>Send</string>
+         <string>Start</string>
         </property>
        </widget>
       </item>
diff --git a/src/pvs.cpp b/src/pvs.cpp
index bda16f8..5469eaa 100755
--- a/src/pvs.cpp
+++ b/src/pvs.cpp
@@ -265,15 +265,18 @@ void PVS::onCommand(PVSMsg cmdMessage)
     }
     if (ident.compare("STARTPROCESS") == 0)
     {
+    	processName = message;
     	QProcess *proc = new QProcess( this );
     	proc->start(message); //we try to run the process with the name message
-    	_pvsServerConnection->sendMessage(PVSMsg(PVSCOMMAND, "PROCESSES", "START Process "+message+": started"));
+    	connect( proc, SIGNAL( error(QProcess::ProcessError)), this, SLOT( processStartErrorOccured(QProcess::ProcessError)));
     	return;
     }
     if (ident.compare("KILLPROCESS") == 0)
     {
+    	processName = message;
 		QProcess *proc = new QProcess( this );
 		proc->start("kill "+message); //we try to kill the process with the given ID
+		connect( proc, SIGNAL( error(QProcess::ProcessError)), this, SLOT( processStopErrorOccured(QProcess::ProcessError)));
         return;
     }
 
@@ -929,14 +932,18 @@ void PVS::showProc()
 {
 	//look at procfs
 	QDir procfs("/proc");
-	QStringList proc = procfs.entryList();
+	QStringList procList = procfs.entryList();
 	int uid = getuid();
 	bool write;
-
-	for (int i=0;i<proc.length();i++) //every directory in /proc is checked
+	if (procList.length() < 1)
+	{
+		_pvsServerConnection->sendMessage(PVSMsg(PVSCOMMAND, "PROCESSES", "SHOW ERROR"));
+		return;
+	}
+	for (int i=0;i<procList.length();i++) //every directory in /proc is checked
 	{
 		write = false;
-		QString tmp = proc.at(i);
+		QString tmp = procList.at(i);
 		QString snd = "";
 		if (!tmp.contains(QRegExp("\\D"))) //we have to check if name is number
 		{
@@ -992,3 +999,16 @@ void PVS::showProc()
 	}
 	_pvsServerConnection->sendMessage(PVSMsg(PVSCOMMAND, "PROCESSES", "SHOW finished")); //at the end we send that every process has been sent
 }
+
+//tell connectionManager that error occured
+void PVS::processStartErrorOccured(QProcess::ProcessError error)
+{
+	_pvsServerConnection->sendMessage(PVSMsg(PVSCOMMAND, "PROCESSES", "START ERROR "+QString::number(error)+" "+processName));
+	processName = "";
+}
+
+void PVS::processStopErrorOccured(QProcess::ProcessError error)
+{
+	_pvsServerConnection->sendMessage(PVSMsg(PVSCOMMAND, "PROCESSES", "STOP ERROR "+QString::number(error)+" "+processName));
+	processName = "";
+}
diff --git a/src/pvs.h b/src/pvs.h
index f99e497..92e965e 100755
--- a/src/pvs.h
+++ b/src/pvs.h
@@ -171,6 +171,7 @@ private:
 
     int _timerLockTest;
     int _timerLockDelay;
+    QString processName;
 
     // input event handling:
     unprivileged_handler_chain _inputEventHandlers;
@@ -191,6 +192,8 @@ private Q_SLOTS:
     void outgoingMulticastTransferDelete(qulonglong transferID);
     void incomingMulticastTransferDelete(qulonglong transferID);
     void onIncomingMulticastTransferRetry(QString const& sender, qulonglong transferID);
+    void processStartErrorOccured(QProcess::ProcessError error);
+    void processStopErrorOccured(QProcess::ProcessError error);
 
 private:
     QSettings _settings;