display used time to shred drive

src/drive.cpp

@@ -52,10 +52,11 @@ string Drive::sCapacityToText()
     double dSize = (double) getCapacity();
     uint16_t u16UnitIndex = 0;
     const char* units[] = {"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"};
-    while (dSize >= 1000) { //using the marketing capacity 
-        dSize /= 1000;
-        u16UnitIndex++;
-    }
+    while (dSize >= 1000)   //using the marketing capacity
+        {
+            dSize /= 1000;
+            u16UnitIndex++;
+        }
 
     sprintf(acBuffer, "%.*f %s", u16UnitIndex-3, dSize, units[u16UnitIndex]);
     return acBuffer;
@@ -139,6 +140,16 @@ void Drive::setTimestamp()
     time(&this->u32Timestamp);
 }
 
+void Drive::setActionStartTimestamp()
+{
+    time(&this->u32TimestampTaskStart);
+}
+
+time_t Drive::getActionStartTimestamp()
+{
+    return this->u32TimestampTaskStart;
+}
+
 void Drive::checkFrozenDrive(void)
 {
     time_t u32localtime;