Name unnamed sources

These names show up in GLib traces in sysprof, so let's make sure they
exist.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1928>

clutter/clutter/clutter-frame-clock.c

@@ -761,7 +761,7 @@ init_frame_clock_source (ClutterFrameClock *frame_clock)
   source = g_source_new (&frame_clock_source_funcs, sizeof (ClutterClockSource));
   clock_source = (ClutterClockSource *) source;
 
-  name = g_strdup_printf ("Clutter frame clock (%p)", frame_clock);
+  name = g_strdup_printf ("[mutter] Clutter frame clock (%p)", frame_clock);
   g_source_set_name (source, name);
   g_source_set_priority (source, CLUTTER_PRIORITY_REDRAW);
   g_source_set_can_recurse (source, FALSE);

cogl/cogl/cogl-glib-source.c

@@ -171,6 +171,7 @@ cogl_glib_renderer_source_new (CoglRenderer *renderer,
 
   source = g_source_new (&cogl_glib_source_funcs,
                          sizeof (CoglGLibSource));
+  g_source_set_name (source, "[mutter] Cogl");
   cogl_source = (CoglGLibSource *) source;
 
   cogl_source->renderer = renderer;

src/backends/meta-backend.c

@@ -1136,6 +1136,7 @@ init_clutter (MetaBackend  *backend,
     return FALSE;
 
   source = g_source_new (&clutter_source_funcs, sizeof (MetaBackendSource));
+  g_source_set_name (source, "[mutter] Backend");
   backend_source = (MetaBackendSource *) source;
   backend_source->backend = backend;
   g_source_attach (source, NULL);

src/backends/meta-idle-monitor.c

@@ -337,6 +337,7 @@ make_watch (MetaIdleMonitor           *monitor,
     {
       GSource *source = g_source_new (&idle_monitor_source_funcs,
                                       sizeof (GSource));
+      g_source_set_name (source, "[mutter] Idle monitor");
 
       g_source_set_callback (source, NULL, watch, NULL);
       if (!monitor->inhibited)

src/backends/meta-screen-cast-stream-src.c

@@ -1194,11 +1194,12 @@ static GSourceFuncs pipewire_source_funcs =
 static MetaPipeWireSource *
 create_pipewire_source (MetaScreenCastStreamSrc *src)
 {
+  GSource *source;
   MetaPipeWireSource *pipewire_source;
 
-  pipewire_source =
-    (MetaPipeWireSource *) g_source_new (&pipewire_source_funcs,
-                                         sizeof (MetaPipeWireSource));
+  source = g_source_new (&pipewire_source_funcs, sizeof (MetaPipeWireSource));
+  g_source_set_name (source, "[mutter] PipeWire");
+  pipewire_source = (MetaPipeWireSource *) source;
   pipewire_source->src = src;
   pipewire_source->pipewire_loop = pw_loop_new (NULL);
   if (!pipewire_source->pipewire_loop)

src/backends/native/meta-kms.c

@@ -473,6 +473,7 @@ meta_kms_add_source_in_impl (MetaKms        *kms,
 
   source = g_source_new (&simple_impl_source_funcs,
                          sizeof (MetaKmsSimpleImplSource));
+  g_source_set_name (source, "[mutter] KMS simple impl");
   simple_impl_source = (MetaKmsSimpleImplSource *) source;
   simple_impl_source->kms = kms;
 
@@ -534,6 +535,7 @@ meta_kms_register_fd_in_impl (MetaKms             *kms,
   meta_assert_in_kms_impl (kms);
 
   source = g_source_new (&fd_impl_source_funcs, sizeof (MetaKmsFdImplSource));
+  g_source_set_name (source, "[mutter] KMS fd impl");
   fd_impl_source = (MetaKmsFdImplSource *) source;
   fd_impl_source->dispatch = dispatch;
   fd_impl_source->user_data = user_data;

src/backends/native/meta-seat-impl.c

@@ -1509,6 +1509,7 @@ meta_event_source_new (MetaSeatImpl *seat_impl)
   int fd;
 
   source = g_source_new (&event_funcs, sizeof (MetaEventSource));
+  g_source_set_name (source, "[mutter] Events");
   event_source = (MetaEventSource *) source;
 
   /* setup the source */

src/backends/x11/meta-backend-x11.c

@@ -476,6 +476,7 @@ x_event_source_new (MetaBackend *backend)
   XEventSource *x_source;
 
   source = g_source_new (&x_event_funcs, sizeof (XEventSource));
+  g_source_set_name (source, "[mutter] X events");
   x_source = (XEventSource *) source;
   x_source->backend = backend;
   x_source->event_poll_fd.fd = ConnectionNumber (priv->xdisplay);

src/wayland/meta-wayland.c

@@ -117,17 +117,20 @@ static GSourceFuncs wayland_event_source_funcs =
 static GSource *
 wayland_event_source_new (struct wl_display *display)
 {
-  WaylandEventSource *source;
+  GSource *source;
+  WaylandEventSource *wayland_source;
   struct wl_event_loop *loop = wl_display_get_event_loop (display);
 
-  source = (WaylandEventSource *) g_source_new (&wayland_event_source_funcs,
-                                                sizeof (WaylandEventSource));
-  source->display = display;
-  g_source_add_unix_fd (&source->source,
+  source = g_source_new (&wayland_event_source_funcs,
+                         sizeof (WaylandEventSource));
+  g_source_set_name (source, "[mutter] Wayland events");
+  wayland_source = (WaylandEventSource *) source;
+  wayland_source->display = display;
+  g_source_add_unix_fd (&wayland_source->source,
                         wl_event_loop_get_fd (loop),
                         G_IO_IN | G_IO_ERR);
 
-  return &source->source;
+  return &wayland_source->source;
 }
 
 void