created a fast locking mechanism using atomic_flag

utils/sync/spinlock.hpp

@@ -0,0 +1,25 @@
+#ifndef MEMGRAPH_UTILS_SYNC_SPINLOCK_HPP
+#define MEMGRAPH_UTILS_SYNC_SPINLOCK_HPP
+
+#include <atomic>
+#include <unistd.h>
+
+class SpinLock
+{
+public:
+    void acquire()
+    {
+        while(lock.test_and_set(std::memory_order_acquire))
+            usleep(250);
+    }
+
+    void release()
+    {
+        lock.clear(std::memory_order_release);
+    }
+
+private:
+    std::atomic_flag lock;
+};
+
+#endif