fn return_descriptor()

in integrations/virtiofs/src/virtiofs.rs [86:112]

• 26 lines of code
• 7 McCabe index (conditional complexity)

    fn return_descriptor(
        vring_state: &mut VringState,
        head_index: u16,
        event_idx: bool,
        len: usize,
    ) {
        if vring_state.add_used(head_index, len as u32).is_err() {
            warn!("Failed to add used to used queue.");
        };
        // Check if the used queue needs to be signaled.
        if event_idx {
            match vring_state.needs_notification() {
                Ok(needs_notification) => {
                    if needs_notification && vring_state.signal_used_queue().is_err() {
                        warn!("Failed to signal used queue.");
                    }
                }
                Err(_) => {
                    if vring_state.signal_used_queue().is_err() {
                        warn!("Failed to signal used queue.");
                    };
                }
            }
        } else if vring_state.signal_used_queue().is_err() {
            warn!("Failed to signal used queue.");
        }
    }