Struct MemoryDatagramControl 

pub struct MemoryDatagramControl { /* private fields */ }

Available on crate feature std and crate feature udp and (crate features test-utils) only.

Deterministic outbound faults for a MemoryDatagramSocket.

Implementations

impl MemoryDatagramControl

pub fn drop_next(&self, count: usize)

Drop the next count outbound datagrams, including individual GSO segments. Replaces any remaining drop count. Dropped datagrams consume no queue space.

pub fn duplicate_next(&self, count: usize)

Deliver each of the next count surviving outbound datagrams twice, including individual GSO segments. Replaces any remaining duplication count.

Duplicates never take part in admission: a copy uses a queue slot only when one is spare after the whole send was admitted, and is otherwise skipped without consuming the count. Drops happen first; a copy is delivered before a held reordered original.

pub fn reorder_next_pair(&self) -> Result<(), DatagramError>

Hold one outgoing datagram until the following datagram can pass it.

Requires at least two queue slots. Reserves one slot by lowering the segmented-send limit to at most capacity - 1, so a held datagram never prevents an otherwise empty receive queue from accepting a GSO batch. Drops happen before reordering; only surviving datagrams form the pair.

pub fn stats(&self) -> MemoryDatagramFaultStats

Return cumulative applied faults for this direction.

Trait Implementations

impl Clone for MemoryDatagramControl

fn clone(&self) -> MemoryDatagramControl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryDatagramControl

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

Formats the value using the given formatter.