missing file :)

Former-commit-id: 19061fe04f22dc2dcb4547a4c74eccfb89cae785

src/aelocker.h

@@ -0,0 +1,61 @@
+#pragma once
+
+class AeLocker
+{
+    bool m_fArmed = false;
+
+public:
+    AeLocker()
+    {
+    }
+
+    void arm(client *c) // if a client is passed, then the client is already locked
+    {
+        if (c != nullptr)
+        {
+            serverAssert(!m_fArmed);
+            serverAssert(c->lock.fOwnLock());
+
+            bool fClientLocked = true;
+            while (!aeTryAcquireLock())
+            {
+                if (fClientLocked) c->lock.unlock();
+                fClientLocked = false;
+                aeAcquireLock();
+                if (!c->lock.try_lock())
+                {
+                    aeReleaseLock();
+                }
+                else
+                {
+                    break;
+                }
+            }
+            
+            m_fArmed = true;
+        }
+        else if (!m_fArmed)
+        {
+            m_fArmed = true;
+            aeAcquireLock();
+        }
+    }
+
+    void disarm()
+    {
+        serverAssert(m_fArmed);
+        m_fArmed = false;
+        aeReleaseLock();
+    }
+
+    bool isArmed() const
+    {
+        return m_fArmed;
+    }
+
+    ~AeLocker()
+    {
+        if (m_fArmed)
+            aeReleaseLock();
+    }
+};