1 files changed, 24 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/runtime_registry.rb b/activerecord/lib/active_record/runtime_registry.rb
new file mode 100644
index 0000000000..4975cb8967
--- /dev/null
+++ b/activerecord/lib/active_record/runtime_registry.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require "active_support/per_thread_registry"
+
+module ActiveRecord
+  # This is a thread locals registry for Active Record. For example:
+  #
+  #   ActiveRecord::RuntimeRegistry.connection_handler
+  #
+  # returns the connection handler local to the current thread.
+  #
+  # See the documentation of ActiveSupport::PerThreadRegistry
+  # for further details.
+  class RuntimeRegistry # :nodoc:
+    extend ActiveSupport::PerThreadRegistry
+
+    attr_accessor :connection_handler, :sql_runtime
+
+    [:connection_handler, :sql_runtime].each do |val|
+      class_eval %{ def self.#{val}; instance.#{val}; end }, __FILE__, __LINE__
+      class_eval %{ def self.#{val}=(x); instance.#{val}=x; end }, __FILE__, __LINE__
+    end
+  end
+end