From 2ccbd2f307a8f2e8292fe796a74a64d853ac43e8 Mon Sep 17 00:00:00 2001
From: Russell Gilbert <russell@sandyatom.org>
Date: Wed, 11 Feb 2026 07:56:57 +0000
Subject: [PATCH] Uses atomic booleans for thread safety

Replaces mutex with atomic booleans in DixonNodeState for improved thread safety. This eliminates the need for explicit locking in the connected_ and brainRunning_ accessors, reducing overhead and potential for deadlocks.

Updates version file.
---
 src/RobotNode/DixonNodeState.cpp | 4 ----
 src/RobotNode/DixonNodeState.h   | 7 +++----
 src/RobotNode/version.txt        | 2 +-
 3 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/src/RobotNode/DixonNodeState.cpp b/src/RobotNode/DixonNodeState.cpp
index 7fe544f..1b50986 100644
--- a/src/RobotNode/DixonNodeState.cpp
+++ b/src/RobotNode/DixonNodeState.cpp
@@ -8,24 +8,20 @@ DixonNodeState& DixonNodeState::instance()
 
 void DixonNodeState::setConnected(bool value)
 {
-    std::lock_guard<std::mutex> lock(mutex_);
     connected_ = value;
 }
 
 bool DixonNodeState::isConnected() const
 {
-    std::lock_guard<std::mutex> lock(mutex_);
     return connected_;
 }
 
 void DixonNodeState::setBrainRunning(bool value)
 {
-    std::lock_guard<std::mutex> lock(mutex_);
     brainRunning_ = value;
 }
 
 bool DixonNodeState::isBrainRunning() const
 {
-    std::lock_guard<std::mutex> lock(mutex_);
     return brainRunning_;
 }
\ No newline at end of file
diff --git a/src/RobotNode/DixonNodeState.h b/src/RobotNode/DixonNodeState.h
index f062aee..c64f598 100644
--- a/src/RobotNode/DixonNodeState.h
+++ b/src/RobotNode/DixonNodeState.h
@@ -1,5 +1,5 @@
 #pragma once
-#include <mutex>
+#include<atomic>
 
 class DixonNodeState
 {
@@ -21,7 +21,6 @@ private:
     DixonNodeState() = default;
     ~DixonNodeState() = default;
 
-    mutable std::mutex mutex_;
-    bool connected_ = false;
-    bool brainRunning_ = false;
+    std::atomic<bool> connected_ = false;
+    std::atomic<bool> brainRunning_ = false;
 };
\ No newline at end of file
diff --git a/src/RobotNode/version.txt b/src/RobotNode/version.txt
index 437d26b..492b167 100644
--- a/src/RobotNode/version.txt
+++ b/src/RobotNode/version.txt
@@ -1 +1 @@
-1.0.10
\ No newline at end of file
+1.0.12
\ No newline at end of file