Struct VirtQueueAvail 

#[repr(C)]
pub struct VirtQueueAvail {
    pub flags: u16,
    pub idx: u16,
}

VirtIO available ring header structure.

This structure represents the memory layout of the available ring header in guest memory according to the VirtIO specification. It is a simple C-compatible data structure that directly maps to guest memory.

The complete available ring in guest memory consists of:

1. This header structure (VirtQueueAvail)
2. An array of descriptor indices (ring[\queue_size])
3. An optional used_event field (if VIRTIO_F_EVENT_IDX is negotiated)

This structure is used by AvailableRing to read/write the header portion of the available ring through guest memory accessor.

Fields

flags: u16

Flags

idx: u16

Index of the next available descriptor

Implementations

impl VirtQueueAvail

pub fn new() -> Self

Create a new available ring header

pub fn no_interrupt(&self) -> bool

Check if interrupts are disabled

pub fn set_no_interrupt(&mut self, no_interrupt: bool)

Set the no interrupt flag

Trait Implementations

impl Clone for VirtQueueAvail

fn clone(&self) -> VirtQueueAvail

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VirtQueueAvail

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for VirtQueueAvail

fn default() -> VirtQueueAvail

Returns the “default value” for a type.

impl Copy for VirtQueueAvail