PacketRing

ndn_faces::l2::af_packet

Struct PacketRing

pub struct PacketRing { /* private fields */ }

Expand description

Mmap’d PACKET_RX_RING + PACKET_TX_RING for zero-copy packet I/O.

Implementations§

impl PacketRing

pub fn try_pop_rx(&self) -> Option<Bytes>

Try to dequeue one packet from the RX ring.

pub fn try_pop_rx_with_source(&self) -> Option<(Bytes, MacAddr)>

Try to dequeue one packet from the RX ring, also returning the source MAC.

In a TPACKET_V2 frame the kernel embeds a sockaddr_ll immediately after the aligned tpacket2_hdr. For received frames the kernel fills in sll_addr / sll_halen with the source Ethernet address, giving us the peer MAC without any extra syscall.

pub fn try_push_tx(&self, data: &[u8]) -> bool

Try to enqueue one packet into the TX ring.

Trait Implementations§

impl Drop for PacketRing

fn drop(&mut self)

Executes the destructor for this type. Read more

impl Send for PacketRing

impl Sync for PacketRing

Auto Trait Implementations§

impl !Freeze for PacketRing

impl RefUnwindSafe for PacketRing

impl Unpin for PacketRing

impl UnwindSafe for PacketRing

Blanket Implementations§

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