From 8dab1e17c82bebf83639a8b387971bddca1e66d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dominik=20Tomic=CC=8Cevic=CC=81?=
 <dominik.tomicevic@gmail.com>
Date: Thu, 18 Jun 2015 14:55:04 +0200
Subject: [PATCH] created a fast locking mechanism using atomic_flag

---
 utils/sync/spinlock.hpp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 utils/sync/spinlock.hpp

diff --git a/utils/sync/spinlock.hpp b/utils/sync/spinlock.hpp
new file mode 100644
index 000000000..bc46e63b8
--- /dev/null
+++ b/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