From 37b4d107d9a29ddbe723cc239114d1b8123ce3e6 Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@icinga.com>
Date: Mon, 26 Aug 2024 17:18:58 +0200
Subject: [PATCH] Locked<T>: optimistically use SpinMutex to consume less RAM

std::mutex is 5 pointers large on x64, whereas std::atomic_flag at most one.
---
 lib/base/atomic.hpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/base/atomic.hpp b/lib/base/atomic.hpp
index 29d158cf0..797d7d7f3 100644
--- a/lib/base/atomic.hpp
+++ b/lib/base/atomic.hpp
@@ -80,20 +80,20 @@ class Locked
 public:
 	inline T load() const
 	{
-		std::unique_lock<std::mutex> lock(m_Mutex);
+		std::unique_lock lock (m_Mutex);
 
 		return m_Value;
 	}
 
 	inline void store(T desired)
 	{
-		std::unique_lock<std::mutex> lock(m_Mutex);
+		std::unique_lock lock (m_Mutex);
 
 		m_Value = std::move(desired);
 	}
 
 private:
-	mutable std::mutex m_Mutex;
+	mutable SpinMutex m_Mutex;
 	T m_Value;
 };