From 4482031329b9c886c931ad420bf8209e2970a2b4 Mon Sep 17 00:00:00 2001
From: joaquintides <joaquin@tid.es>
Date: Wed, 29 Mar 2023 16:45:15 +0200
Subject: [PATCH] made concurrent_table::thread_counter static

---
 include/boost/unordered/detail/foa/concurrent_table.hpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/include/boost/unordered/detail/foa/concurrent_table.hpp b/include/boost/unordered/detail/foa/concurrent_table.hpp
index 4272bedc..5bd4d510 100644
--- a/include/boost/unordered/detail/foa/concurrent_table.hpp
+++ b/include/boost/unordered/detail/foa/concurrent_table.hpp
@@ -656,7 +656,6 @@ private:
 
   shared_lock_guard shared_access()const
   {
-    // TODO: make this more sophisticated (even distribution)
     thread_local auto id=(++thread_counter)%mutexes.size();
 
     return shared_lock_guard{mutexes[id]};
@@ -1051,11 +1050,13 @@ private:
   }
 #endif
 
-  /* TODO: thread_counter should be static */
-  mutable std::atomic<unsigned int> thread_counter{0};
-  mutable multimutex_type           mutexes;
+  static std::atomic<std::size_t> thread_counter;
+  mutable multimutex_type         mutexes;
 };
 
+template<typename T,typename H,typename P,typename A>
+std::atomic<std::size_t> concurrent_table<T,H,P,A>::thread_counter=0;
+
 #if defined(BOOST_MSVC)
 #pragma warning(pop) /* C4714 */
 #endif