Index: sources/storage/filehandler.cpp
===================================================================
diff -u -r5e78f0799b46963feb5756decb1a27b952cd19b3 -r56d00a82669a7a2c00ab90109a89dbec8db27527
--- sources/storage/filehandler.cpp	(.../filehandler.cpp)	(revision 5e78f0799b46963feb5756decb1a27b952cd19b3)
+++ sources/storage/filehandler.cpp	(.../filehandler.cpp)	(revision 56d00a82669a7a2c00ab90109a89dbec8db27527)
@@ -22,10 +22,19 @@
 // Project
 #include "storageglobals.h"
 #include "logger.h"
+#include "threads.h"
 
 // namespace
 using namespace Storage;
 
+/*!
+ * \brief   FileHandler::write
+ * \details Writes the content of vContent into the file vFileName.
+ * \param   vFileName - Source file name
+ * \param   vContent  - The content which is going to be written in the file.
+ * \param   vAppend   - if set to true the content will be appended at the end of the file.
+ * \return  false if file can't be opened.
+ */
 bool FileHandler::write(const QString &vFileName, const QString &vContent, bool vAppend)
 {
     QFile file(vFileName);
@@ -42,6 +51,13 @@
     return true;
 }
 
+/*!
+ * \brief   FileHandler::read
+ * \details reads file vFilename content into vContent variable.
+ * \param   vFileName - Source file name
+ * \param   vContent  - The content of the file which will be set when done.
+ * \return  false if file can't be opened.
+ */
 bool FileHandler::read(const QString &vFileName, QString &vContent)
 {
     QFile file(vFileName);
@@ -54,22 +70,38 @@
     return true;
 }
 
+/*!
+ * \brief   FileHandler::copyFolder
+ * \details Copies all the file and folders recursively.
+ * \param   vSource      - The source folder
+ * \param   vDestination - The destination folder
+ * \return  Tue on successful execution.
+ * \note    This method uses the Linux "cp -r vSource vDestination" command
+ *          Not a Thread-Safe method so made private to be called by export log
+ *          QtConcurrent::run.
+ *
+ */
 int FileHandler::copyFolder(const QString &vSource, const QString &vDestination )
 {
-    PRINT_THREAD_NAME;
-
     QString cp = "cp";
     QStringList arguments;
     arguments << "-r" << vSource << vDestination;
     return QProcess::execute(cp, arguments);
 }
 
-bool FileHandler::exportLog()
+/*!
+ * \brief   FileHandler::concurrentExportLog
+ * \details Exports the log files from log folder (Storage::Log_Base_Path_Name_Location)
+ *          into USB drive folder (Storage::USB_Mount_Point)
+ * \return  always returns true for now.
+ * \note    This method uses QtConcurrent run to execute the copyFolder method.
+ */
+bool FileHandler::concurrentExportLog()
 {
     QString mSource      = Storage::Log_Base_Path_Name_Location;
     QString mDestination = Storage::USB_Mount_Point;
     //QFuture<bool> future =
     QtConcurrent::run(this, &FileHandler::copyFolder, mSource, mDestination);
     //return future.result();
-    return  0;
+    return  true;
 }