Übung2

Merged cars.c from my branch to Übung 2 branch

cars_1.c

@@ -45,7 +45,10 @@ void* func(void* ptr){
         crosses_counter++;
         unlock(car_id);
     //**********CRITICAL SECTION**********//
-    //The thread acquires the lock before it enters the ciritical section. If there is a car on the bridge (another thread has the lock) then we wait. While the car is crossing, we increment he car_on_bridge by 1, reaching bridge capacity.We simulate the crossing bridge time using usleep.The car crosses, we decrement the car_on_bridge and print out a message that the car has crossed, then we increment the crosses_counter and release the lock so that it can be obtained by other cars(threads).
+    /*The thread acquires the lock before it enters the ciritical section. 
+    If there is a car on the bridge (another thread has the lock) then we wait. 
+    While the car is crossing, we increment he car_on_bridge by 1, reaching bridge capacity.
+    We simulate the crossing bridge time using usleep.The car crosses, we decrement the car_on_bridge and print out a message that the car has crossed, then we increment the crosses_counter and release the lock so that it can be obtained by other cars(threads).*/
     }
     return NULL;
 }