archive/List: add RAII class

test/visit_archive.cxx

@@ -38,21 +38,19 @@
 class GlobalInit {
 	EventThread io_thread;
 
+#ifdef ENABLE_ARCHIVE
+	const ScopeArchivePluginsInit archive_plugins_init;
+#endif
+
 public:
 	GlobalInit() {
 		io_thread.Start();
-#ifdef ENABLE_ARCHIVE
-		archive_plugin_init_all();
-#endif
 		input_stream_global_init(ConfigData(),
 					 io_thread.GetEventLoop());
 	}
 
 	~GlobalInit() {
 		input_stream_global_finish();
-#ifdef ENABLE_ARCHIVE
-		archive_plugin_deinit_all();
-#endif
 	}
 };