From 7a87fe4b60b2f3874d0a5da33a2c593034be48c2 Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Tue, 14 Nov 2023 21:07:38 -0800
Subject: [PATCH] [ntcore] ProtobufSubscriber: Make mutex and msg mutable
 (#5927)

---
 ntcore/src/main/native/include/networktables/ProtobufTopic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ntcore/src/main/native/include/networktables/ProtobufTopic.h b/ntcore/src/main/native/include/networktables/ProtobufTopic.h
index 362d2cb5b5..5fe615b26d 100644
--- a/ntcore/src/main/native/include/networktables/ProtobufTopic.h
+++ b/ntcore/src/main/native/include/networktables/ProtobufTopic.h
@@ -172,8 +172,8 @@ class ProtobufSubscriber : public Subscriber {
   }
 
  private:
-  wpi::mutex m_mutex;
-  wpi::ProtobufMessage<T> m_msg;
+  mutable wpi::mutex m_mutex;
+  mutable wpi::ProtobufMessage<T> m_msg;
   ValueType m_defaultValue;
 };