stated to implement threading

src/reHDD.cpp

@@ -7,6 +7,9 @@
 
 #include "../include/reHDD.h"
 
+
+static int fd[2];//File descriptor for creating a pipe
+
 /**
  * \brief   app constructor
  * \param	void
@@ -26,10 +29,44 @@ void reHDD::app_logic(void)
 {
     cout << "app logic" << endl;
 
-    searchDrives(&vecDrives);           //search for new drives and store them in list
-    filterIgnoredDrives(&vecDrives);    //filter out ignored drives
-    addSMARTData(&vecDrives);           //add S.M.A.R.T. Data to the drives
-    printDrives(&vecDrives);            //print currently attached drives
+    thread thDevices(ThreadDevices);
+
+
+    //searchDrives(&vecDrives);           //search for new drives and store them in list
+    //filterIgnoredDrives(&vecDrives);    //filter out ignored drives
+    //addSMARTData(&vecDrives);           //add S.M.A.R.T. Data to the drives
+  //  printDrives(&vecDrives);            //print currently attached drives
+
+
+
+   int  result = pipe (fd);
+
+while(1){
+      char    ch;
+   
+
+      result = read (fd[0],&ch,1);
+   
+          if (result != 1) {
+        perror("read");
+        exit(3);
+      }
+
+      printf ("From Main Thread: %c\n", ch); 
+      
+      
+        }
+
+
+
+
+    thDevices.join();
+
+    std::cout << std::endl;
+
+/*
+
+
 
     size_t u64SelectedDriveIndex = 0U;
     size_t u64DriveVecSize =  (vecDrives.size());
@@ -39,18 +76,60 @@ void reHDD::app_logic(void)
     cout << "Selected drive index: " << u64SelectedDriveIndex << endl;
 
     if(u64SelectedDriveIndex < (u64DriveVecSize)) {
-        Wipe::wipeDrive(&vecDrives[u64SelectedDriveIndex]);
+     //   Wipe::wipeDrive(&vecDrives[u64SelectedDriveIndex]);
     }
+*/
+}
+
+void reHDD::ThreadDevices(){
+
+
+
+while(true){
+
+cout << "Thread" << endl;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+     int  result = write (fd[1], "A",1);
+     //cout << result << endl;
+       if (result != 1){
+           perror ("write error");
+          // exit (2);
+       }
+       
+    sleep(5); //sleep 5 sec
+}
+
+
 
 }
 
+
+
 /**
  * \brief   search attached drives on /dev/sd*
  * \param	pointer of vector <Drive>* pvecDrives
  * \return  void
  */
-void reHDD::searchDrives(vector <Drive>* pvecDrives)
+ void reHDD::searchDrives(vector <Drive>* pvecDrives)
 {
+
+
+
+
+
     cout << "search drives ..." << endl;
     char * cLine = NULL;
     size_t len = 0;
@@ -71,6 +150,8 @@ void reHDD::searchDrives(vector <Drive>* pvecDrives)
         }
     }
     fclose(outputfileHwinfo);
+
+
 }
 
 /**