pipewire: add pipewire client

src/pipewire/pw_ifs/pw_registry.rs

@@ -0,0 +1,48 @@
+use {
+    crate::pipewire::{
+        pw_con::PwCon,
+        pw_object::{PwObject, PwObjectData},
+        pw_parser::{PwParser, PwParserError},
+    },
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+pub const PW_REGISTRY_VERSION: i32 = 3;
+
+pw_opcodes! {
+    PwRegistryEvents;
+
+    Global = 0,
+    GlobalRemove = 1,
+}
+
+pub struct PwRegistry {
+    pub data: PwObjectData,
+    pub con: Rc<PwCon>,
+}
+
+impl PwRegistry {
+    fn handle_global(&self, _p: PwParser<'_>) -> Result<(), PwRegistryError> {
+        Ok(())
+    }
+
+    fn handle_global_remove(&self, _p: PwParser<'_>) -> Result<(), PwRegistryError> {
+        Ok(())
+    }
+}
+
+pw_object_base! {
+    PwRegistry, "registry", PwRegistryEvents;
+
+    Global => handle_global,
+    GlobalRemove => handle_global_remove,
+}
+
+impl PwObject for PwRegistry {}
+
+#[derive(Debug, Error)]
+pub enum PwRegistryError {
+    #[error(transparent)]
+    PwParserError(#[from] PwParserError),
+}