shared_mutex: Optimize busy-waiting by detecting waiters and try to steal the notifying bit

Add an unused has_waiters() method.
2022-08-07 17:48:14 +03:00
parent 26e731b487
commit 2ec039365f
2 changed files with 34 additions and 3 deletions
@@ -171,6 +171,11 @@ public:
 	{
 		return m_value.load() < c_one - 1;
 	}
+
+	bool has_waiters() const
+	{
+		return m_value.load() > c_one;
+	}
 };

 // Simplified shared (reader) lock implementation.