src: use a common log domain in the daemon code

glib log domains are not like the gstreamer ones, where you can enable
many of them with a wildcard, therefore it is not particularly useful
to have different ones per file

src/core.c

@@ -6,8 +6,6 @@
  * SPDX-License-Identifier: LGPL-2.1-or-later
  */
 
-#define G_LOG_DOMAIN "wireplumber-core"
-
 #include "core.h"
 #include "loop-source.h"
 #include "module-loader.h"

src/loop-source.c

@@ -6,8 +6,6 @@
  * SPDX-License-Identifier: LGPL-2.1-or-later
  */
 
-#define G_LOG_DOMAIN "wireplumber-loop"
-
 #include "loop-source.h"
 
 #define WP_LOOP_SOURCE(x) ((WpLoopSource *) x)

src/main.c

@@ -6,8 +6,6 @@
  * SPDX-License-Identifier: LGPL-2.1-or-later
  */
 
-#define G_LOG_DOMAIN "wireplumber"
-
 #include "core.h"
 #include "utils.h"
 

src/meson.build

@@ -8,7 +8,11 @@ wp_sources = [
 
 executable('wireplumber',
   wp_sources,
-  c_args : [ '-D_GNU_SOURCE', '-DG_LOG_USE_STRUCTURED' ],
+  c_args : [
+    '-D_GNU_SOURCE',
+    '-DG_LOG_USE_STRUCTURED',
+    '-DG_LOG_DOMAIN="wireplumber"'
+  ],
   install: true,
   dependencies : [gobject_dep, gmodule_dep, gio_dep, pipewire_dep, wp_dep],
 )