From 5e7a9b7697a4733f5985b2054c3cce314148135c Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Thu, 4 Sep 2025 00:54:26 +0300
Subject: [PATCH] Fix saving thread names in logger

---
 libs/log/source/log.cpp | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/libs/log/source/log.cpp b/libs/log/source/log.cpp
index a452eca2..582f8341 100644
--- a/libs/log/source/log.cpp
+++ b/libs/log/source/log.cpp
@@ -24,7 +24,7 @@ namespace psemek::log
 		std::atomic<std::size_t> max_thread_name_length = 3;
 
 		std::mutex thread_names_mutex;
-		util::hash_map<std::thread::id, std::string> thread_names;
+		util::hash_map<std::thread::id, std::unique_ptr<std::string>> thread_names;
 
 		std::mutex sinks_mutex;
 		std::vector<std::unique_ptr<sink>> sinks;
@@ -163,10 +163,14 @@ namespace psemek::log
 			if (it != thread_names.end())
 				throw util::exception("Thread \"" + name + "\" already registered!");
 
-			thread_names[id] = name;
+			thread_names[id] = std::make_unique<std::string>(name);
 		}
 
-		max_thread_name_length = std::max(max_thread_name_length.load(), name.size());
+		{
+			std::size_t current_max = max_thread_name_length.load();
+			while(current_max < name.size() && !max_thread_name_length.compare_exchange_weak(current_max, name.size()))
+			{}
+		}
 
 		put_message(level::info, "Thread \"" + name + "\" registered");
 	}
@@ -185,7 +189,7 @@ namespace psemek::log
 				throw util::exception(os.str());
 			}
 
-			name = std::move(it->second);
+			name = std::move(*(it->second));
 			thread_names.erase(it);
 		}
 
@@ -236,7 +240,7 @@ namespace psemek::log
 			if (it == thread_names.end())
 				thread_name = &unknown_thread_name;
 			else
-				thread_name = &(it->second);
+				thread_name = it->second.get();
 		}
 
 		put_message(l, message, *thread_name);