fn register_device_collection_changed()

in src/backend/mod.rs [2918:2941]

• 24 lines of code
• 4 McCabe index (conditional complexity)

    fn register_device_collection_changed(
        &mut self,
        devtype: DeviceType,
        collection_changed_callback: ffi::cubeb_device_collection_changed_callback,
        user_ptr: *mut c_void,
    ) -> Result<()> {
        if devtype == DeviceType::UNKNOWN {
            return Err(Error::invalid_parameter());
        }
        self.serial_queue
            .clone()
            .run_sync(|| {
                if collection_changed_callback.is_some() {
                    self.add_devices_changed_listener(
                        devtype,
                        collection_changed_callback,
                        user_ptr,
                    )
                } else {
                    self.remove_devices_changed_listener(devtype)
                }
            })
            .unwrap()
    }