xo-reader2: + init_reader2 + reader2_register_types

include/xo/reader2/init_reader2.hpp

@@ -0,0 +1,21 @@
+/** @file init_reader2.hpp
+ *
+ *  @author Roland Conybeare, Jan 2026
+ **/
+
+#pragma once
+
+#include <xo/subsys/Subsystem.hpp>
+
+namespace xo {
+    /* tag to represent the xo-reader2/ subsystem within ordered initialization */
+    enum S_reader2_tag {};
+
+    template <>
+    struct InitSubsys<S_reader2_tag> {
+        static void init();
+        static InitEvidence require();
+    };
+} /*namespace xo*/
+
+/* end init_reader2.hpp */

include/xo/reader2/reader2_register_types.hpp

@@ -0,0 +1,17 @@
+/** @file reader2_register_types.hpp
+ *
+ *  @author Roland Conybeare, Jan 2026
+ **/
+
+#pragma once
+
+#include <xo/gc/Collector.hpp>
+
+namespace xo {
+    namespace scm {
+        /** Register reader2 gc-aware types with collector **/
+        bool reader2_register_types(obj<xo::mm::ACollector> gc);
+    }
+}
+
+/* end reader2_register_types.hpp */