* Add some use documentation to the daemon

[catta] / daemon / main.c

diff --git a/daemon/main.c b/daemon/main.c
index c986de0ae42773510c118651cdff4be074a1dc8e..9a02391da8283270994446e9b632fa43137ff649 100644 (file)
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -25,17 +25,140 @@
 
 #include <avahi-core/core.h>
 
+#define DBUS_API_SUBJECT_TO_CHANGE
+#include <dbus/dbus.h>
+#include <dbus/dbus-glib-lowlevel.h>
+
+#define DBUS_SERVICE_AVAHI "org.freedesktop.Avahi"
+
+static DBusHandlerResult
+do_register (DBusConnection *conn, DBusMessage *message)
+{
+       DBusError error;
+       char *s;
+
+       dbus_error_init (&error);
+
+       dbus_message_get_args (message, &error,
+                       DBUS_TYPE_STRING, &s,
+                       DBUS_TYPE_INVALID);
+
+       if (dbus_error_is_set (&error))
+       {
+               g_warning ("Error parsing register attempt");
+               dbus_error_free (&error);
+
+               return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+       }
+
+       g_message ("Register received from: %s", s);
+
+       return DBUS_HANDLER_RESULT_HANDLED;
+}
+
+static DBusHandlerResult
+signal_filter (DBusConnection *conn, DBusMessage *message, void *user_data)
+{
+       GMainLoop *loop = user_data;
+       DBusError error;
+
+       dbus_error_init (&error);
+
+       g_message ("dbus: interface=%s, path=%s, member=%s",
+                       dbus_message_get_interface (message),
+                       dbus_message_get_path (message),
+                       dbus_message_get_member (message));
+
+       if (dbus_message_is_signal (message,
+                               DBUS_INTERFACE_ORG_FREEDESKTOP_LOCAL,
+                               "Disconnected"))
+       {
+               /* No, we shouldn't quit, but until we get somewhere
+                * usefull such that we can restore our state, we will */
+               g_warning ("Disconnnected from d-bus");
+
+               g_main_loop_quit (loop);
+               return DBUS_HANDLER_RESULT_HANDLED;
+       } else if (dbus_message_is_method_call (message, DBUS_SERVICE_AVAHI,
+                               "Register"))
+       {
+               return do_register (conn, message);
+       } else if (dbus_message_is_signal (message,
+                               DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
+                               "ServiceAcquired"))
+       {
+               char *name;
+
+               dbus_message_get_args (message, &error,
+                               DBUS_TYPE_STRING, &name,
+                               DBUS_TYPE_INVALID);
+
+               if (dbus_error_is_set (&error))
+               {
+                       g_warning ("Error parsing NameAcquired message");
+                       dbus_error_free (&error);
+
+                       return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+               }
+
+               g_message ("dbus: ServiceAcquired (%s)", name);
+
+               return DBUS_HANDLER_RESULT_HANDLED;
+       }
+
+       g_message ("dbus: missed event");
+
+       return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+               
 int main(int argc, char *argv[]) {
-    AvahiServer *avahi;
     GMainLoop *loop = NULL;
-
-    avahi = avahi_server_new(NULL);
+    DBusConnection *bus;
+    DBusError error;
 
     loop = g_main_loop_new(NULL, FALSE);
+
+    dbus_error_init (&error);
+
+
+    bus = dbus_bus_get (DBUS_BUS_SYSTEM, &error);
+
+    if (bus == NULL)
+    {
+           g_warning ("dbus_bus_get(): %s", error.message);
+           dbus_error_free (&error);
+
+           return -1;
+    }
+
+    dbus_connection_setup_with_g_main (bus, NULL);
+    dbus_connection_set_exit_on_disconnect (bus, FALSE);
+
+    dbus_bus_acquire_service (bus, DBUS_SERVICE_AVAHI, 0, &error);
+
+    if (dbus_error_is_set (&error))
+    {
+           g_warning ("dbus_error_is_set (): %s", error.message);
+           dbus_error_free (&error);
+
+           return -1;
+    }
+
+    dbus_connection_add_filter (bus, signal_filter, loop, NULL);
+    dbus_bus_add_match (bus,
+                   "type='method_call',interface='org.freedesktop.Avahi'",
+                   &error);
+
+    if (dbus_error_is_set (&error))
+    {
+           g_warning ("dbus_bus_add_match (): %s", error.message);
+           dbus_error_free (&error);
+
+           return -1;
+    }
+
     g_main_loop_run(loop);
     g_main_loop_unref(loop);
     
-    avahi_server_free(avahi);
-    
     return 0;
 }