Actually use Registry#Freeze() at startup, when everything has been registered

Author: Al2Klimov

lib/db_ido/dbtype.cpp

@@ -8,6 +8,10 @@
 
 using namespace icinga;
 
+INITIALIZE_ONCE_WITH_PRIORITY([]{
+	DbTypeRegistry::GetInstance()->Freeze();
+}, InitializePriority::FreezeNamespaces);
+
 DbType::DbType(String name, String table, long tid, String idcolumn, DbType::ObjectFactory factory)
 	: m_Name(std::move(name)), m_Table(std::move(table)), m_TypeID(tid), m_IDColumn(std::move(idcolumn)), m_ObjectFactory(std::move(factory))
 { }

lib/remote/apiaction.cpp

@@ -4,6 +4,10 @@
 
 using namespace icinga;
 
+INITIALIZE_ONCE_WITH_PRIORITY([]{
+	ApiActionRegistry::GetInstance()->Freeze();
+}, InitializePriority::FreezeNamespaces);
+
 ApiAction::ApiAction(std::vector<String> types, Callback action)
 	: m_Types(std::move(types)), m_Callback(std::move(action))
 { }

lib/remote/apifunction.cpp

@@ -4,6 +4,10 @@
 
 using namespace icinga;
 
+INITIALIZE_ONCE_WITH_PRIORITY([]{
+	ApiFunctionRegistry::GetInstance()->Freeze();
+}, InitializePriority::FreezeNamespaces);
+
 ApiFunction::ApiFunction(Callback function)
 	: m_Callback(std::move(function))
 { }