implemented simple and atomic auto counters

utils/counters/atomic_counter.hpp

@@ -0,0 +1,21 @@
+#ifndef MEMGRAPH_UTILS_COUNTERS_ATOMIC_COUNTER_HPP
+#define MEMGRAPH_UTILS_COUNTERS_ATOMIC_COUNTER_HPP
+
+#include <atomic>
+
+template <class T>
+class AtomicCounter
+{
+public:
+    AtomicCounter(T initial) : counter(initial) {}
+
+    T next()
+    {
+        return counter.fetch_add(1, std::memory_order_relaxed);
+    }
+
+private:
+    std::atomic<T> counter;
+};
+
+#endif

utils/counters/simple_counter.hpp

@@ -0,0 +1,24 @@
+#ifndef MEMGRAPH_UTILS_COUNTERS_SIMPLE_COUNTER_HPP
+#define MEMGRAPH_UTILS_COUNTERS_SIMPLE_COUNTER_HPP
+
+template <class T>
+class SimpleCounter
+{
+public:
+    SimpleCounter(T initial) : counter(initial) {}
+
+    T next()
+    {
+        return ++counter;
+    }
+
+    T count()
+    {
+        return counter;
+    }
+
+private:
+    T counter;
+};
+
+#endif