divorce XML literal to hostnamed.h, update types to be glib-appropriate, comments

[systembsd.git] / src / interfaces / hostnamed / hostnamed.c

#include <gio/gio.h>
#include "hostnamed.h"

GDBusNodeInfo *spect_data;
GMainLoop *loop;

static void handle_method_call(GDBusConnection *conn,
				const gchar *sender,
				const gchar *obj_path,
				const gchar *interf_name,
				const gchar *method_name,
				GVariant *params,
				GDBusMethodInvocation *invc,
				gpointer usrdat) {

		g_printf("%s wants to call %s, at %s with interface %s\n", sender, method_name, obj_path, interf_name);

		GString  *xml_ret;
		GVariant *xml_ret_gvar;

		g_dbus_interface_info_generate_xml(spect_data->interfaces[0], (guint)0, xml_ret);
		xml_ret_gvar = g_variant_new_string(xml_ret->str);
		g_dbus_method_invocation_return_value(invc, xml_ret_gvar);

}

static GVariant * handle_get_property(GDBusConnection *conn,
				const gchar *sender,
				const gchar *obj_path,
				const gchar *interf_name,
				const gchar *prop_name,
				GError **err,
				gpointer usr_data) {
		
		GVariant *ret;

		return ret;
}

static gboolean handle_set_property(GDBusConnection *conn,
				const gchar *sender,
				const gchar *obj_path,
				const gchar *interf_name,
				const gchar *prop_name,
				GVariant *val,
				GError **err,
				gpointer usr_data) {
		g_dbus_connection_emit_signal(conn,
						NULL,
						obj_path,
						"org.freedesktop.DBus.Properties",
						"PropertiesChanged",
						NULL, /* incorrect */
						NULL);

		return TRUE;
}

/* "hot" functions initially passed to gdbus */
static const GDBusInterfaceVTable interface_vtable =
{
  handle_method_call,
  handle_get_property,
  handle_set_property
};

/* end method/property functions, begin bus name handlers
 * TODO: these should be intertwined as to handle edge cases
 * for when the system cannot immediately grab the name, as
 * well as cases where the system unintendedly loses the name
 */
static void on_bus_acquired(GDBusConnection *conn, const gchar *name, gpointer user_data) {
	g_print("got bus, name: %s\n", name);
	
	guint reg_id;

	reg_id = g_dbus_connection_register_object(conn,
											   "/org/freedesktop/hostname1",
											   spect_data->interfaces[0], 
											   &interface_vtable,
											   NULL,
											   NULL,
											   NULL );
	g_assert(reg_id > 0);
}

static void on_name_acquired(GDBusConnection *conn, const gchar *name, gpointer user_data) {
	g_print("got name %s\n", name);
}

static void on_name_lost(GDBusConnection *conn, const gchar *name, gpointer user_data) {
	g_print("lost name %s, exiting...\n", name);
	g_main_loop_quit(loop);
}

/* safe call to try and start hostnamed */
GError hostnamed_init() {

	guint bus_descriptor;
	GError *err = NULL;	

	spect_data = g_dbus_node_info_new_for_xml(SYSTEMD_HOSTNAMED_XML, &err);

	bus_descriptor = g_bus_own_name(G_BUS_TYPE_SESSION,
	                                (gchar *)"org.freedesktop.hostname1",
				                    G_BUS_NAME_OWNER_FLAGS_NONE,
				                    on_bus_acquired,
				                    on_name_acquired,
				                    on_name_lost,
				                    NULL,
				                    NULL);

	loop = g_main_loop_new(NULL, FALSE);
	g_main_loop_run(loop);

	/* i am not sure what the system state is once g_main_loop exits */

	g_bus_unown_name(bus_descriptor);
	g_dbus_node_info_unref(spect_data);
}