core: implement an interface to retrieve the pw_core & pw_remote

lib/wp/core-interfaces.c

@@ -10,6 +10,35 @@
 #include "plugin.h"
 #include "session.h"
 
+/* WpPipewireObjects */
+
+G_DEFINE_INTERFACE (WpPipewireObjects, wp_pipewire_objects, G_TYPE_OBJECT)
+
+static void
+wp_pipewire_objects_default_init (WpPipewireObjectsInterface * iface)
+{
+}
+
+struct pw_core * wp_pipewire_objects_get_pw_core (WpPipewireObjects * self)
+{
+  WpPipewireObjectsInterface *iface = WP_PIPEWIRE_OBJECTS_GET_IFACE (self);
+
+  g_return_val_if_fail (WP_IS_PIPEWIRE_OBJECTS (self), NULL);
+  g_return_val_if_fail (iface->get_pw_core, NULL);
+
+  return iface->get_pw_core (self);
+}
+
+struct pw_remote * wp_pipewire_objects_get_pw_remote (WpPipewireObjects * self)
+{
+  WpPipewireObjectsInterface *iface = WP_PIPEWIRE_OBJECTS_GET_IFACE (self);
+
+  g_return_val_if_fail (WP_IS_PIPEWIRE_OBJECTS (self), NULL);
+  g_return_val_if_fail (iface->get_pw_remote, NULL);
+
+  return iface->get_pw_remote (self);
+}
+
 /* WpPluginRegistry */
 
 G_DEFINE_INTERFACE (WpPluginRegistry, wp_plugin_registry, WP_TYPE_INTERFACE_IMPL)

lib/wp/core-interfaces.h

@@ -13,6 +13,25 @@
 
 G_BEGIN_DECLS
 
+/* WpPipewireObjects */
+
+struct pw_core;
+struct pw_remote;
+
+#define WP_TYPE_PIPEWIRE_OBJECTS (wp_pipewire_objects_get_type ())
+G_DECLARE_INTERFACE (WpPipewireObjects, wp_pipewire_objects, WP, PIPEWIRE_OBJECTS, GObject)
+
+struct _WpPipewireObjectsInterface
+{
+  GTypeInterface parent;
+
+  struct pw_core * (*get_pw_core) (WpPipewireObjects * self);
+  struct pw_remote * (*get_pw_remote) (WpPipewireObjects * self);
+};
+
+struct pw_core * wp_pipewire_objects_get_pw_core (WpPipewireObjects * self);
+struct pw_remote * wp_pipewire_objects_get_pw_remote (WpPipewireObjects * self);
+
 /* WpPluginRegistry */
 
 #define WP_TYPE_PLUGIN_REGISTRY (wp_plugin_registry_get_type ())

src/core.c

@@ -36,7 +36,11 @@ struct _WpCore
   GError *exit_error;
 };
 
-G_DEFINE_TYPE (WpCore, wp_core, WP_TYPE_OBJECT);
+static void wp_core_pw_objects_init (WpPipewireObjectsInterface * iface);
+
+G_DEFINE_TYPE_WITH_CODE (WpCore, wp_core, WP_TYPE_OBJECT,
+    G_IMPLEMENT_INTERFACE (WP_TYPE_PIPEWIRE_OBJECTS, wp_core_pw_objects_init);
+)
 
 static gboolean
 signal_handler (gpointer data)
@@ -271,6 +275,25 @@ wp_core_class_init (WpCoreClass * klass)
   object_class->finalize = wp_core_finalize;
 }
 
+static struct pw_core *
+wp_core_get_pw_core (WpPipewireObjects *pwobj)
+{
+  return WP_CORE (pwobj)->core;
+}
+
+static struct pw_remote *
+wp_core_get_pw_remote (WpPipewireObjects *pwobj)
+{
+  return WP_CORE (pwobj)->remote;
+}
+
+static void
+wp_core_pw_objects_init (WpPipewireObjectsInterface * iface)
+{
+  iface->get_pw_core = wp_core_get_pw_core;
+  iface->get_pw_remote = wp_core_get_pw_remote;
+}
+
 WpCore *
 wp_core_get_instance (void)
 {