added rudimental logging support

src/global.h

@@ -45,6 +45,8 @@
 #define VERSION                         "1.0cvs"
 #define APP_NAME                        "llcon"
 
+// file name for logging file
+#define LOG_FILE_NAME                   "llconsrvlog.txt"
 
 /* defined port number for client and server */
 #define LLCON_PORT_NUMBER               22122

src/main.cpp

@@ -37,9 +37,10 @@ QApplication* pApp = NULL;
 int main ( int argc, char** argv )
 {
     /* check if server or client application shall be started */
-    bool bIsClient = true;
-    bool bUseGUI = true;
-        
+    bool bIsClient         = true;
+    bool bUseGUI           = true;
+    bool bUseServerLogging = false;
+
     /* QT docu: argv()[0] is the program name, argv()[1] is the first
        argument and argv()[argc()-1] is the last argument */
     if ( argc > 1 )
@@ -58,7 +59,16 @@ int main ( int argc, char** argv )
         if ( !strShortOpt.compare ( argv[1] ) )
         {
             bIsClient = false;
-            bUseGUI = false;
+            bUseGUI   = false;
+        }
+
+        /* "-sln": start server with GUI disabled and logging enabled */
+        strShortOpt = "-sln";
+        if ( !strShortOpt.compare ( argv[1] ) )
+        {
+            bIsClient         = false;
+            bUseGUI           = false;
+            bUseServerLogging = true;
         }
     }
 
@@ -83,17 +93,17 @@ int main ( int argc, char** argv )
         pApp = &app; /* Needed for post-event routine */
 
         /* Show dialog */
-        ClientDlg.show ();
-        app.exec ();
+        ClientDlg.show();
+        app.exec();
 
         /* Save settings to init-file */
-        Settings.Save ();
+        Settings.Save();
     }
     else
     {
         /* server */
         // actual server object
-        CServer Server;
+        CServer Server ( bUseServerLogging );
 
         if ( bUseGUI )
         {
@@ -106,14 +116,14 @@ int main ( int argc, char** argv )
             pApp = &app; /* Needed for post-event routine */
 
             /* Show dialog */
-            ServerDlg.show ();
-            app.exec ();
+            ServerDlg.show();
+            app.exec();
         }
         else
         {
             // only start application without using the GUI
             qDebug ( CAboutDlg::GetVersionAndNameStr ( false ) );
-            app.exec ();
+            app.exec();
         }
     }
 
@@ -130,6 +140,6 @@ void PostWinMessage ( const _MESSAGE_IDENT MessID, const int iMessageParam,
             new CLlconEvent ( MessID, iMessageParam, iChanNum );
 
         /* Qt will delete the event object when done */
-        QThread::postEvent ( pApp->mainWidget (), LlconEv );
+        QThread::postEvent ( pApp->mainWidget(), LlconEv );
     }
 }

src/server.cpp

@@ -26,7 +26,7 @@
 
 
 /* Implementation *************************************************************/
-CServer::CServer() : Socket ( &ChannelSet, this )
+CServer::CServer ( const bool bUseLogging ) : Socket ( &ChannelSet, this )
 {
     vecsSendData.Init ( MIN_BLOCK_SIZE_SAMPLES );
 
@@ -47,6 +47,12 @@ CServer::CServer() : Socket ( &ChannelSet, this )
     // class, do not use automatic start/stop of server in Windows version
     Start();
 #endif
+
+    // enable logging (if requested)
+    if ( bUseLogging )
+    {
+        Logging.Start();
+    }
 }
 
 void CServer::OnSendProtMessage ( int iChID, CVector<uint8_t> vecMessage )
@@ -80,7 +86,11 @@ void CServer::Stop()
     // stop main timer
     Timer.stop();
 
-    qDebug ( CLogTimeDate::toString() + "Server stopped" );
+    // logging
+    QString strLogStr = CLogTimeDate::toString() + "Server stopped";
+
+    qDebug ( strLogStr ); // on console
+    Logging << strLogStr; // in log file
 }
 
 void CServer::OnTimer()

src/server.h

@@ -42,12 +42,12 @@ class CServer : public QObject
     Q_OBJECT
 
 public:
-    CServer ();
-    virtual ~CServer () {}
+    CServer ( const bool bUseLogging );
+    virtual ~CServer() {}
 
     void Start ();
     void Stop ();
-    bool IsRunning() { return Timer.isActive (); }
+    bool IsRunning() { return Timer.isActive(); }
 
     void GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
         CVector<std::string>& vecsName,
@@ -60,7 +60,7 @@ public:
 
     bool GetTimingStdDev ( double& dCurTiStdDev );
 
-    CChannelSet* GetChannelSet () { return &ChannelSet; }
+    CChannelSet* GetChannelSet() { return &ChannelSet; }
 
 protected:
     CVector<short>  ProcessData ( CVector<CVector<double> >& vecvecdData,
@@ -79,6 +79,9 @@ protected:
     CMovingAv<double>   RespTimeMoAvBuf;
     QTime               TimeLastBlock;
 
+    // logging
+    CLogging            Logging;
+
 public slots:
     void OnTimer();
     void OnSendProtMessage ( int iChID, CVector<uint8_t> vecMessage );

src/util.h

@@ -467,5 +467,35 @@ public:
 };
 
 
+/* Time and Data to String conversion --------------------------------------- */
+class CLogging
+{
+public:
+    CLogging() : bDoLogging ( false ), pFile ( NULL ) {}
+    virtual ~CLogging()
+    {
+        if ( pFile != NULL )
+        {
+            fclose ( pFile );
+        }
+    }
+
+    void Start()
+    {
+        // open file
+        pFile = fopen ( LOG_FILE_NAME, "a" );
+    }
+
+    CLogging& operator<< ( const QString & sNewStr )
+    {
+        fprintf ( pFile, "%s\n", sNewStr.latin1() );
+        fflush ( pFile );
+        return *this;
+    }
+
+protected:
+    bool        bDoLogging;
+    FILE*       pFile;
+};
 
 #endif /* !defined(UTIL_HOIH934256GEKJH98_3_43445KJIUHF1912__INCLUDED_) */